/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-fpi/s42iff.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:52:45,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:52:45,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:52:45,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 10:52:45,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 10:52:45,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 10:52:45,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 10:52:45,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 10:52:45,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 10:52:45,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 10:52:45,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 10:52:45,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 10:52:45,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 10:52:45,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 10:52:45,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 10:52:45,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 10:52:45,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 10:52:45,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 10:52:45,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 10:52:45,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 10:52:45,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 10:52:45,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 10:52:45,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 10:52:45,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 10:52:45,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 10:52:45,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 10:52:45,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 10:52:45,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 10:52:45,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 10:52:45,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 10:52:45,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 10:52:45,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 10:52:45,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 10:52:45,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:52:45,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:52:45,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:52:45,706 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 10:52:45,763 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:52:45,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:52:45,764 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:52:45,764 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:52:45,766 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:52:45,766 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:52:45,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:52:45,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:52:45,769 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:52:45,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:52:45,770 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:52:45,770 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:52:45,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:52:45,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:52:45,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:52:45,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:52:45,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:52:45,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:52:45,772 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:52:45,772 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:52:45,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:52:45,773 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:52:45,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:52:45,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:52:45,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:52:45,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:52:45,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:52:45,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:52:45,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:52:45,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:52:45,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:52:45,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:52:45,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:52:45,775 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:52:46,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:52:46,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:52:46,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:52:46,252 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:52:46,255 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:52:46,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/s42iff.c [2022-10-16 10:52:46,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad222919e/ab967fbb768f433d975c7a2d1d6bfdd9/FLAG903d1c56a [2022-10-16 10:52:46,883 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:52:46,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/s42iff.c [2022-10-16 10:52:46,895 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad222919e/ab967fbb768f433d975c7a2d1d6bfdd9/FLAG903d1c56a [2022-10-16 10:52:47,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad222919e/ab967fbb768f433d975c7a2d1d6bfdd9 [2022-10-16 10:52:47,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:52:47,293 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:52:47,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:52:47,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:52:47,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:52:47,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:52:47" (1/1) ... [2022-10-16 10:52:47,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ff9062d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:52:47, skipping insertion in model container [2022-10-16 10:52:47,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:52:47" (1/1) ... [2022-10-16 10:52:47,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:52:47,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:52:47,558 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-fpi/s42iff.c[589,602] [2022-10-16 10:52:47,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:52:47,595 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:52:47,611 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-fpi/s42iff.c[589,602] [2022-10-16 10:52:47,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:52:47,644 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:52:47,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:52:47 WrapperNode [2022-10-16 10:52:47,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:52:47,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:52:47,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:52:47,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:52:47,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:52:47" (1/1) ... [2022-10-16 10:52:47,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:52:47" (1/1) ... [2022-10-16 10:52:47,723 INFO L138 Inliner]: procedures = 17, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 106 [2022-10-16 10:52:47,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:52:47,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:52:47,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:52:47,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:52:47,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:52:47" (1/1) ... [2022-10-16 10:52:47,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:52:47" (1/1) ... [2022-10-16 10:52:47,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:52:47" (1/1) ... [2022-10-16 10:52:47,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:52:47" (1/1) ... [2022-10-16 10:52:47,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:52:47" (1/1) ... [2022-10-16 10:52:47,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:52:47" (1/1) ... [2022-10-16 10:52:47,779 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:52:47" (1/1) ... [2022-10-16 10:52:47,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:52:47" (1/1) ... [2022-10-16 10:52:47,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:52:47,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:52:47,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:52:47,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:52:47,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:52:47" (1/1) ... [2022-10-16 10:52:47,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:52:47,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:52:47,844 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 10:52:47,866 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 10:52:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:52:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:52:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:52:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:52:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 10:52:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:52:47,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:52:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:52:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:52:48,042 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:52:48,044 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:52:48,335 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:52:48,355 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:52:48,355 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 10:52:48,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:52:48 BoogieIcfgContainer [2022-10-16 10:52:48,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:52:48,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:52:48,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:52:48,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:52:48,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:52:47" (1/3) ... [2022-10-16 10:52:48,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6fa31d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:52:48, skipping insertion in model container [2022-10-16 10:52:48,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:52:47" (2/3) ... [2022-10-16 10:52:48,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6fa31d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:52:48, skipping insertion in model container [2022-10-16 10:52:48,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:52:48" (3/3) ... [2022-10-16 10:52:48,370 INFO L112 eAbstractionObserver]: Analyzing ICFG s42iff.c [2022-10-16 10:52:48,400 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:52:48,400 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-10-16 10:52:48,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:52:48,506 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;@474e4cf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:52:48,506 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-10-16 10:52:48,512 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 53 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:48,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 10:52:48,520 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:52:48,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:52:48,522 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:52:48,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:52:48,528 INFO L85 PathProgramCache]: Analyzing trace with hash 177631151, now seen corresponding path program 1 times [2022-10-16 10:52:48,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:52:48,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452696222] [2022-10-16 10:52:48,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:48,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:52:48,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:48,743 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 10:52:48,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:52:48,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452696222] [2022-10-16 10:52:48,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452696222] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:52:48,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:52:48,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:52:48,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438245421] [2022-10-16 10:52:48,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:52:48,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 10:52:48,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:52:48,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 10:52:48,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 10:52:48,795 INFO L87 Difference]: Start difference. First operand has 54 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 53 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:48,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:52:48,820 INFO L93 Difference]: Finished difference Result 104 states and 122 transitions. [2022-10-16 10:52:48,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 10:52:48,822 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 10:52:48,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:52:48,832 INFO L225 Difference]: With dead ends: 104 [2022-10-16 10:52:48,832 INFO L226 Difference]: Without dead ends: 48 [2022-10-16 10:52:48,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 10:52:48,842 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:52:48,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:52:48,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-10-16 10:52:48,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-10-16 10:52:48,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 32 states have (on average 1.625) internal successors, (52), 47 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:48,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2022-10-16 10:52:48,887 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 8 [2022-10-16 10:52:48,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:52:48,888 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2022-10-16 10:52:48,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:48,888 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2022-10-16 10:52:48,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 10:52:48,889 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:52:48,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:52:48,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:52:48,890 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:52:48,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:52:48,890 INFO L85 PathProgramCache]: Analyzing trace with hash 179478193, now seen corresponding path program 1 times [2022-10-16 10:52:48,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:52:48,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963343029] [2022-10-16 10:52:48,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:48,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:52:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:49,076 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 10:52:49,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:52:49,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963343029] [2022-10-16 10:52:49,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963343029] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:52:49,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:52:49,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:52:49,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605146463] [2022-10-16 10:52:49,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:52:49,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:52:49,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:52:49,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:52:49,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:52:49,084 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:49,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:52:49,277 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2022-10-16 10:52:49,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:52:49,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 10:52:49,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:52:49,279 INFO L225 Difference]: With dead ends: 91 [2022-10-16 10:52:49,280 INFO L226 Difference]: Without dead ends: 89 [2022-10-16 10:52:49,280 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 10:52:49,282 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 40 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:52:49,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 97 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:52:49,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-10-16 10:52:49,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 52. [2022-10-16 10:52:49,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 51 states have internal predecessors, (57), 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 10:52:49,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2022-10-16 10:52:49,307 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 8 [2022-10-16 10:52:49,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:52:49,308 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2022-10-16 10:52:49,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:49,309 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2022-10-16 10:52:49,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:52:49,309 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:52:49,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:52:49,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:52:49,310 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:52:49,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:52:49,311 INFO L85 PathProgramCache]: Analyzing trace with hash 678258903, now seen corresponding path program 1 times [2022-10-16 10:52:49,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:52:49,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454053174] [2022-10-16 10:52:49,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:49,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:52:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:49,426 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 10:52:49,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:52:49,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454053174] [2022-10-16 10:52:49,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454053174] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:52:49,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:52:49,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:52:49,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373414056] [2022-10-16 10:52:49,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:52:49,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:52:49,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:52:49,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:52:49,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:52:49,431 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:49,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:52:49,571 INFO L93 Difference]: Finished difference Result 118 states and 131 transitions. [2022-10-16 10:52:49,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:52:49,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 10:52:49,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:52:49,574 INFO L225 Difference]: With dead ends: 118 [2022-10-16 10:52:49,574 INFO L226 Difference]: Without dead ends: 80 [2022-10-16 10:52:49,575 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 10:52:49,578 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 81 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:52:49,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 58 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:52:49,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-10-16 10:52:49,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 52. [2022-10-16 10:52:49,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 37 states have (on average 1.5135135135135136) internal successors, (56), 51 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:49,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2022-10-16 10:52:49,596 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 10 [2022-10-16 10:52:49,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:52:49,598 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2022-10-16 10:52:49,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:49,599 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2022-10-16 10:52:49,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 10:52:49,599 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:52:49,600 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:52:49,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 10:52:49,600 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:52:49,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:52:49,601 INFO L85 PathProgramCache]: Analyzing trace with hash 504169901, now seen corresponding path program 1 times [2022-10-16 10:52:49,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:52:49,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539029506] [2022-10-16 10:52:49,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:49,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:52:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:49,759 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 10:52:49,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:52:49,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539029506] [2022-10-16 10:52:49,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539029506] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:52:49,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966965850] [2022-10-16 10:52:49,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:49,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:52:49,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:52:49,768 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 10:52:49,786 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 10:52:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:49,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:52:49,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:52:49,905 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 10:52:49,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:52:49,958 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 10:52:49,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966965850] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:52:49,959 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:52:49,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:52:49,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90230990] [2022-10-16 10:52:49,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:52:49,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:52:49,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:52:49,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:52:49,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:52:49,963 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:50,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:52:50,149 INFO L93 Difference]: Finished difference Result 99 states and 110 transitions. [2022-10-16 10:52:50,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:52:50,150 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 10:52:50,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:52:50,153 INFO L225 Difference]: With dead ends: 99 [2022-10-16 10:52:50,153 INFO L226 Difference]: Without dead ends: 98 [2022-10-16 10:52:50,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 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 10:52:50,156 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 89 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:52:50,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 157 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:52:50,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-10-16 10:52:50,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 63. [2022-10-16 10:52:50,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 48 states have (on average 1.5) internal successors, (72), 62 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:50,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 72 transitions. [2022-10-16 10:52:50,168 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 72 transitions. Word has length 12 [2022-10-16 10:52:50,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:52:50,169 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 72 transitions. [2022-10-16 10:52:50,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:50,169 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 72 transitions. [2022-10-16 10:52:50,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 10:52:50,170 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:52:50,170 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:52:50,212 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 10:52:50,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:52:50,385 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:52:50,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:52:50,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1550602195, now seen corresponding path program 1 times [2022-10-16 10:52:50,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:52:50,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998941683] [2022-10-16 10:52:50,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:50,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:52:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:50,551 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 10:52:50,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:52:50,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998941683] [2022-10-16 10:52:50,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998941683] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:52:50,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920128190] [2022-10-16 10:52:50,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:50,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:52:50,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:52:50,562 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 10:52:50,580 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 10:52:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:50,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:52:50,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:52:50,676 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 10:52:50,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:52:50,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920128190] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:52:50,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:52:50,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:52:50,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050446358] [2022-10-16 10:52:50,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:52:50,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:52:50,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:52:50,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:52:50,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:52:50,680 INFO L87 Difference]: Start difference. First operand 63 states and 72 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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 10:52:50,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:52:50,762 INFO L93 Difference]: Finished difference Result 91 states and 102 transitions. [2022-10-16 10:52:50,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:52:50,763 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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 13 [2022-10-16 10:52:50,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:52:50,766 INFO L225 Difference]: With dead ends: 91 [2022-10-16 10:52:50,767 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 10:52:50,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 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 10:52:50,773 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 40 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:52:50,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 110 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:52:50,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 10:52:50,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 62. [2022-10-16 10:52:50,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 48 states have (on average 1.4375) internal successors, (69), 61 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:50,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2022-10-16 10:52:50,800 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 13 [2022-10-16 10:52:50,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:52:50,801 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 69 transitions. [2022-10-16 10:52:50,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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 10:52:50,801 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 69 transitions. [2022-10-16 10:52:50,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 10:52:50,804 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:52:50,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:52:50,843 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 10:52:51,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:52:51,006 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:52:51,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:52:51,008 INFO L85 PathProgramCache]: Analyzing trace with hash -825622317, now seen corresponding path program 1 times [2022-10-16 10:52:51,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:52:51,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544326339] [2022-10-16 10:52:51,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:51,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:52:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:51,387 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 10:52:51,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:52:51,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544326339] [2022-10-16 10:52:51,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544326339] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:52:51,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172081026] [2022-10-16 10:52:51,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:51,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:52:51,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:52:51,394 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 10:52:51,416 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 10:52:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:51,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 10:52:51,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:52:51,556 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 18 treesize of output 14 [2022-10-16 10:52:51,632 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 10:52:51,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:52:51,683 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 14 treesize of output 12 [2022-10-16 10:52:51,688 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-10-16 10:52:51,701 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 10:52:51,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172081026] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:52:51,702 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:52:51,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-10-16 10:52:51,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423642549] [2022-10-16 10:52:51,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:52:51,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 10:52:51,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:52:51,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 10:52:51,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-10-16 10:52:51,704 INFO L87 Difference]: Start difference. First operand 62 states and 69 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 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 10:52:51,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:52:51,820 INFO L93 Difference]: Finished difference Result 121 states and 133 transitions. [2022-10-16 10:52:51,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 10:52:51,820 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 10:52:51,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:52:51,821 INFO L225 Difference]: With dead ends: 121 [2022-10-16 10:52:51,822 INFO L226 Difference]: Without dead ends: 86 [2022-10-16 10:52:51,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:52:51,824 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 35 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:52:51,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 205 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:52:51,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-10-16 10:52:51,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 63. [2022-10-16 10:52:51,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 62 states have internal predecessors, (70), 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 10:52:51,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2022-10-16 10:52:51,833 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 14 [2022-10-16 10:52:51,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:52:51,833 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2022-10-16 10:52:51,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 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 10:52:51,834 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2022-10-16 10:52:51,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 10:52:51,834 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:52:51,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:52:51,877 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 10:52:52,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:52:52,048 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:52:52,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:52:52,049 INFO L85 PathProgramCache]: Analyzing trace with hash -825622509, now seen corresponding path program 1 times [2022-10-16 10:52:52,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:52:52,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036345501] [2022-10-16 10:52:52,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:52,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:52:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:52,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:52:52,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:52:52,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036345501] [2022-10-16 10:52:52,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036345501] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:52:52,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:52:52,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:52:52,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051976970] [2022-10-16 10:52:52,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:52:52,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:52:52,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:52:52,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:52:52,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:52:52,105 INFO L87 Difference]: Start difference. First operand 63 states and 70 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 10:52:52,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:52:52,145 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2022-10-16 10:52:52,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:52:52,145 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 14 [2022-10-16 10:52:52,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:52:52,146 INFO L225 Difference]: With dead ends: 63 [2022-10-16 10:52:52,146 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 10:52:52,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:52:52,148 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 1 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:52:52,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 105 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:52:52,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 10:52:52,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-10-16 10:52:52,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 60 states have internal predecessors, (68), 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 10:52:52,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2022-10-16 10:52:52,156 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 14 [2022-10-16 10:52:52,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:52:52,156 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2022-10-16 10:52:52,156 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 10:52:52,157 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2022-10-16 10:52:52,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 10:52:52,157 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:52:52,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:52:52,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 10:52:52,158 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:52:52,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:52:52,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1157615292, now seen corresponding path program 1 times [2022-10-16 10:52:52,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:52:52,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314970692] [2022-10-16 10:52:52,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:52,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:52:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:52,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:52:52,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:52:52,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314970692] [2022-10-16 10:52:52,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314970692] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:52:52,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:52:52,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:52:52,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890865042] [2022-10-16 10:52:52,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:52:52,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:52:52,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:52:52,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:52:52,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:52:52,263 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 10:52:52,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:52:52,346 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2022-10-16 10:52:52,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:52:52,347 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 10:52:52,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:52:52,348 INFO L225 Difference]: With dead ends: 82 [2022-10-16 10:52:52,348 INFO L226 Difference]: Without dead ends: 80 [2022-10-16 10:52:52,348 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 10:52:52,349 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 21 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:52:52,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 92 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:52:52,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-10-16 10:52:52,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 66. [2022-10-16 10:52:52,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 54 states have (on average 1.3518518518518519) internal successors, (73), 65 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:52,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 73 transitions. [2022-10-16 10:52:52,358 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 73 transitions. Word has length 17 [2022-10-16 10:52:52,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:52:52,359 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 73 transitions. [2022-10-16 10:52:52,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 10:52:52,359 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 73 transitions. [2022-10-16 10:52:52,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 10:52:52,360 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:52:52,360 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:52:52,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 10:52:52,361 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:52:52,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:52:52,362 INFO L85 PathProgramCache]: Analyzing trace with hash 250320491, now seen corresponding path program 1 times [2022-10-16 10:52:52,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:52:52,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516884105] [2022-10-16 10:52:52,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:52,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:52:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:52,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:52:52,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:52:52,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516884105] [2022-10-16 10:52:52,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516884105] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:52:52,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268011494] [2022-10-16 10:52:52,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:52,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:52:52,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:52:52,553 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 10:52:52,607 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 10:52:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:52,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:52:52,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:52:52,785 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:52:52,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:52:52,868 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:52:52,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268011494] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:52:52,869 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:52:52,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 10:52:52,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938710958] [2022-10-16 10:52:52,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:52:52,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:52:52,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:52:52,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:52:52,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:52:52,874 INFO L87 Difference]: Start difference. First operand 66 states and 73 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 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 10:52:53,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:52:53,112 INFO L93 Difference]: Finished difference Result 155 states and 170 transitions. [2022-10-16 10:52:53,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 10:52:53,113 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 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 10:52:53,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:52:53,114 INFO L225 Difference]: With dead ends: 155 [2022-10-16 10:52:53,114 INFO L226 Difference]: Without dead ends: 120 [2022-10-16 10:52:53,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 30 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:52:53,116 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 113 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:52:53,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 307 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:52:53,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-10-16 10:52:53,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 85. [2022-10-16 10:52:53,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 73 states have (on average 1.356164383561644) internal successors, (99), 84 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:53,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 99 transitions. [2022-10-16 10:52:53,134 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 99 transitions. Word has length 21 [2022-10-16 10:52:53,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:52:53,134 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 99 transitions. [2022-10-16 10:52:53,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 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 10:52:53,141 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 99 transitions. [2022-10-16 10:52:53,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 10:52:53,142 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:52:53,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:52:53,182 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 10:52:53,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:52:53,357 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:52:53,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:52:53,358 INFO L85 PathProgramCache]: Analyzing trace with hash 38416049, now seen corresponding path program 1 times [2022-10-16 10:52:53,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:52:53,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065967468] [2022-10-16 10:52:53,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:53,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:52:53,376 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:52:53,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [166747487] [2022-10-16 10:52:53,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:53,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:52:53,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:52:53,378 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 10:52:53,382 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 10:52:53,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:53,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 10:52:53,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:52:53,532 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-10-16 10:52:53,588 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 10:52:53,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:52:53,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:52:53,685 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 37 treesize of output 31 [2022-10-16 10:52:53,692 INFO L356 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-10-16 10:52:53,693 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 38 treesize of output 24 [2022-10-16 10:52:53,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:52:53,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:52:53,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065967468] [2022-10-16 10:52:53,707 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:52:53,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166747487] [2022-10-16 10:52:53,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166747487] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:52:53,707 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:52:53,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2022-10-16 10:52:53,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099026877] [2022-10-16 10:52:53,708 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:52:53,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 10:52:53,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:52:53,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 10:52:53,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-10-16 10:52:53,710 INFO L87 Difference]: Start difference. First operand 85 states and 99 transitions. Second operand has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 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 10:52:54,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:52:54,010 INFO L93 Difference]: Finished difference Result 153 states and 184 transitions. [2022-10-16 10:52:54,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:52:54,011 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 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 10:52:54,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:52:54,012 INFO L225 Difference]: With dead ends: 153 [2022-10-16 10:52:54,012 INFO L226 Difference]: Without dead ends: 126 [2022-10-16 10:52:54,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:52:54,014 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 94 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:52:54,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 319 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:52:54,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-10-16 10:52:54,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 97. [2022-10-16 10:52:54,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 85 states have (on average 1.3529411764705883) internal successors, (115), 96 states have internal predecessors, (115), 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 10:52:54,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 115 transitions. [2022-10-16 10:52:54,024 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 115 transitions. Word has length 23 [2022-10-16 10:52:54,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:52:54,025 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 115 transitions. [2022-10-16 10:52:54,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 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 10:52:54,025 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 115 transitions. [2022-10-16 10:52:54,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 10:52:54,026 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:52:54,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:52:54,063 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 10:52:54,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 10:52:54,241 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:52:54,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:52:54,242 INFO L85 PathProgramCache]: Analyzing trace with hash 38415857, now seen corresponding path program 1 times [2022-10-16 10:52:54,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:52:54,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319554143] [2022-10-16 10:52:54,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:54,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:52:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:54,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:52:54,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:52:54,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319554143] [2022-10-16 10:52:54,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319554143] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:52:54,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:52:54,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:52:54,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454343946] [2022-10-16 10:52:54,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:52:54,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 10:52:54,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:52:54,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 10:52:54,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:52:54,447 INFO L87 Difference]: Start difference. First operand 97 states and 115 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 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 10:52:54,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:52:54,531 INFO L93 Difference]: Finished difference Result 108 states and 129 transitions. [2022-10-16 10:52:54,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 10:52:54,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 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 23 [2022-10-16 10:52:54,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:52:54,533 INFO L225 Difference]: With dead ends: 108 [2022-10-16 10:52:54,533 INFO L226 Difference]: Without dead ends: 106 [2022-10-16 10:52:54,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:52:54,535 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 13 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:52:54,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 115 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:52:54,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-10-16 10:52:54,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2022-10-16 10:52:54,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 90 states have (on average 1.3444444444444446) internal successors, (121), 101 states have internal predecessors, (121), 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 10:52:54,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 121 transitions. [2022-10-16 10:52:54,545 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 121 transitions. Word has length 23 [2022-10-16 10:52:54,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:52:54,545 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 121 transitions. [2022-10-16 10:52:54,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 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 10:52:54,546 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 121 transitions. [2022-10-16 10:52:54,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:52:54,547 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:52:54,547 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 10:52:54,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 10:52:54,548 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:52:54,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:52:54,548 INFO L85 PathProgramCache]: Analyzing trace with hash -897513823, now seen corresponding path program 2 times [2022-10-16 10:52:54,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:52:54,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983273958] [2022-10-16 10:52:54,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:54,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:52:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:54,697 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 10:52:54,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:52:54,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983273958] [2022-10-16 10:52:54,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983273958] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:52:54,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301500103] [2022-10-16 10:52:54,698 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:52:54,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:52:54,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:52:54,699 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 10:52:54,720 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 10:52:54,757 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 10:52:54,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:52:54,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:52:54,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:52:54,825 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 10:52:54,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:52:54,877 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 10:52:54,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301500103] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:52:54,878 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:52:54,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-16 10:52:54,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789149766] [2022-10-16 10:52:54,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:52:54,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 10:52:54,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:52:54,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 10:52:54,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:52:54,880 INFO L87 Difference]: Start difference. First operand 102 states and 121 transitions. Second operand has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 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 10:52:55,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:52:55,161 INFO L93 Difference]: Finished difference Result 124 states and 148 transitions. [2022-10-16 10:52:55,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:52:55,161 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 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 10:52:55,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:52:55,162 INFO L225 Difference]: With dead ends: 124 [2022-10-16 10:52:55,163 INFO L226 Difference]: Without dead ends: 123 [2022-10-16 10:52:55,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 42 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 10:52:55,171 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 206 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:52:55,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 170 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:52:55,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-10-16 10:52:55,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 91. [2022-10-16 10:52:55,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.35) internal successors, (108), 90 states have internal predecessors, (108), 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 10:52:55,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 108 transitions. [2022-10-16 10:52:55,185 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 108 transitions. Word has length 24 [2022-10-16 10:52:55,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:52:55,185 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 108 transitions. [2022-10-16 10:52:55,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 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 10:52:55,186 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 108 transitions. [2022-10-16 10:52:55,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 10:52:55,189 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:52:55,189 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:52:55,228 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 10:52:55,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:52:55,404 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:52:55,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:52:55,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1920559343, now seen corresponding path program 2 times [2022-10-16 10:52:55,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:52:55,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741272279] [2022-10-16 10:52:55,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:55,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:52:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:55,732 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 10:52:55,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:52:55,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741272279] [2022-10-16 10:52:55,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741272279] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:52:55,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738536147] [2022-10-16 10:52:55,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:52:55,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:52:55,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:52:55,735 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 10:52:55,737 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 10:52:55,793 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:52:55,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:52:55,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 10:52:55,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:52:55,838 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 10:52:55,933 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:52:55,934 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:52:55,983 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 10:52:55,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:52:56,045 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 16 treesize of output 14 [2022-10-16 10:52:56,058 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 20 treesize of output 16 [2022-10-16 10:52:56,077 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 10:52:56,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738536147] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:52:56,077 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:52:56,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 14 [2022-10-16 10:52:56,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001557950] [2022-10-16 10:52:56,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:52:56,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 10:52:56,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:52:56,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 10:52:56,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-10-16 10:52:56,080 INFO L87 Difference]: Start difference. First operand 91 states and 108 transitions. Second operand has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 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 10:52:56,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:52:56,365 INFO L93 Difference]: Finished difference Result 156 states and 181 transitions. [2022-10-16 10:52:56,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:52:56,366 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 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 10:52:56,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:52:56,368 INFO L225 Difference]: With dead ends: 156 [2022-10-16 10:52:56,368 INFO L226 Difference]: Without dead ends: 120 [2022-10-16 10:52:56,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 43 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:52:56,370 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 64 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:52:56,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 317 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:52:56,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-10-16 10:52:56,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 93. [2022-10-16 10:52:56,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.353658536585366) internal successors, (111), 92 states have internal predecessors, (111), 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 10:52:56,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 111 transitions. [2022-10-16 10:52:56,403 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 111 transitions. Word has length 25 [2022-10-16 10:52:56,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:52:56,404 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 111 transitions. [2022-10-16 10:52:56,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 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 10:52:56,404 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 111 transitions. [2022-10-16 10:52:56,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 10:52:56,405 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:52:56,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:52:56,439 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 10:52:56,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:52:56,614 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:52:56,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:52:56,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1985602653, now seen corresponding path program 1 times [2022-10-16 10:52:56,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:52:56,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619617536] [2022-10-16 10:52:56,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:56,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:52:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:56,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:52:56,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:52:56,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619617536] [2022-10-16 10:52:56,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619617536] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:52:56,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:52:56,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:52:56,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028554797] [2022-10-16 10:52:56,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:52:56,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:52:56,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:52:56,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:52:56,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:52:56,669 INFO L87 Difference]: Start difference. First operand 93 states and 111 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:56,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:52:56,715 INFO L93 Difference]: Finished difference Result 105 states and 125 transitions. [2022-10-16 10:52:56,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:52:56,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-10-16 10:52:56,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:52:56,716 INFO L225 Difference]: With dead ends: 105 [2022-10-16 10:52:56,717 INFO L226 Difference]: Without dead ends: 103 [2022-10-16 10:52:56,719 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 10:52:56,720 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 17 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:52:56,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 99 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:52:56,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-10-16 10:52:56,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2022-10-16 10:52:56,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 90 states have (on average 1.3444444444444446) internal successors, (121), 100 states have internal predecessors, (121), 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 10:52:56,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 121 transitions. [2022-10-16 10:52:56,728 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 121 transitions. Word has length 26 [2022-10-16 10:52:56,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:52:56,728 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 121 transitions. [2022-10-16 10:52:56,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:56,729 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 121 transitions. [2022-10-16 10:52:56,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 10:52:56,733 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:52:56,734 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:52:56,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 10:52:56,735 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:52:56,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:52:56,736 INFO L85 PathProgramCache]: Analyzing trace with hash 2118394144, now seen corresponding path program 1 times [2022-10-16 10:52:56,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:52:56,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908570969] [2022-10-16 10:52:56,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:56,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:52:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:56,841 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 10:52:56,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:52:56,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908570969] [2022-10-16 10:52:56,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908570969] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:52:56,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601471669] [2022-10-16 10:52:56,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:56,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:52:56,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:52:56,844 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 10:52:56,863 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 10:52:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:56,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:52:56,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:52:56,942 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 10:52:56,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:52:56,987 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 10:52:56,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601471669] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:52:56,987 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:52:56,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:52:56,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411278289] [2022-10-16 10:52:56,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:52:56,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:52:56,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:52:56,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:52:56,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:52:56,989 INFO L87 Difference]: Start difference. First operand 101 states and 121 transitions. Second operand has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:57,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:52:57,143 INFO L93 Difference]: Finished difference Result 148 states and 178 transitions. [2022-10-16 10:52:57,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:52:57,144 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-16 10:52:57,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:52:57,145 INFO L225 Difference]: With dead ends: 148 [2022-10-16 10:52:57,145 INFO L226 Difference]: Without dead ends: 147 [2022-10-16 10:52:57,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 10:52:57,147 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 68 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:52:57,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 152 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:52:57,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-10-16 10:52:57,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 132. [2022-10-16 10:52:57,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 121 states have (on average 1.3636363636363635) internal successors, (165), 131 states have internal predecessors, (165), 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 10:52:57,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 165 transitions. [2022-10-16 10:52:57,157 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 165 transitions. Word has length 28 [2022-10-16 10:52:57,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:52:57,158 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 165 transitions. [2022-10-16 10:52:57,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:57,158 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 165 transitions. [2022-10-16 10:52:57,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 10:52:57,159 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:52:57,159 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 10:52:57,198 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 10:52:57,373 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,SelfDestructingSolverStorable14 [2022-10-16 10:52:57,373 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:52:57,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:52:57,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1245709113, now seen corresponding path program 1 times [2022-10-16 10:52:57,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:52:57,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830828536] [2022-10-16 10:52:57,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:57,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:52:57,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:57,448 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:52:57,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:52:57,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830828536] [2022-10-16 10:52:57,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830828536] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:52:57,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902799286] [2022-10-16 10:52:57,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:57,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:52:57,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:52:57,450 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 10:52:57,474 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 10:52:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:57,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:52:57,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:52:57,556 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:52:57,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:52:57,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902799286] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:52:57,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:52:57,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:52:57,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434310166] [2022-10-16 10:52:57,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:52:57,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:52:57,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:52:57,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:52:57,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:52:57,559 INFO L87 Difference]: Start difference. First operand 132 states and 165 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:57,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:52:57,645 INFO L93 Difference]: Finished difference Result 134 states and 165 transitions. [2022-10-16 10:52:57,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:52:57,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-16 10:52:57,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:52:57,647 INFO L225 Difference]: With dead ends: 134 [2022-10-16 10:52:57,647 INFO L226 Difference]: Without dead ends: 133 [2022-10-16 10:52:57,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:52:57,648 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 26 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:52:57,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 142 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:52:57,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-10-16 10:52:57,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2022-10-16 10:52:57,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 121 states have (on average 1.322314049586777) internal successors, (160), 130 states have internal predecessors, (160), 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 10:52:57,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 160 transitions. [2022-10-16 10:52:57,660 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 160 transitions. Word has length 29 [2022-10-16 10:52:57,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:52:57,660 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 160 transitions. [2022-10-16 10:52:57,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:57,660 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 160 transitions. [2022-10-16 10:52:57,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 10:52:57,661 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:52:57,661 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:52:57,707 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 10:52:57,874 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,SelfDestructingSolverStorable15 [2022-10-16 10:52:57,874 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:52:57,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:52:57,875 INFO L85 PathProgramCache]: Analyzing trace with hash 874414924, now seen corresponding path program 1 times [2022-10-16 10:52:57,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:52:57,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002161315] [2022-10-16 10:52:57,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:57,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:52:57,889 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:52:57,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1393007706] [2022-10-16 10:52:57,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:57,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:52:57,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:52:57,891 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 10:52:57,894 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 10:52:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:57,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:52:57,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:52:58,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:52:58,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:52:58,141 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:52:58,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:52:58,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002161315] [2022-10-16 10:52:58,142 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:52:58,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393007706] [2022-10-16 10:52:58,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393007706] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:52:58,142 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:52:58,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-10-16 10:52:58,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122545170] [2022-10-16 10:52:58,143 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:52:58,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:52:58,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:52:58,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:52:58,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:52:58,144 INFO L87 Difference]: Start difference. First operand 131 states and 160 transitions. Second operand has 12 states, 12 states have (on average 3.25) 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 10:52:58,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:52:58,336 INFO L93 Difference]: Finished difference Result 143 states and 164 transitions. [2022-10-16 10:52:58,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:52:58,337 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) 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 30 [2022-10-16 10:52:58,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:52:58,338 INFO L225 Difference]: With dead ends: 143 [2022-10-16 10:52:58,338 INFO L226 Difference]: Without dead ends: 110 [2022-10-16 10:52:58,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 44 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-10-16 10:52:58,339 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 63 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:52:58,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 239 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:52:58,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-10-16 10:52:58,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 105. [2022-10-16 10:52:58,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 95 states have (on average 1.3263157894736841) internal successors, (126), 104 states have internal predecessors, (126), 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 10:52:58,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 126 transitions. [2022-10-16 10:52:58,348 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 126 transitions. Word has length 30 [2022-10-16 10:52:58,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:52:58,349 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 126 transitions. [2022-10-16 10:52:58,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) 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 10:52:58,349 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 126 transitions. [2022-10-16 10:52:58,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 10:52:58,350 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:52:58,350 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:52:58,384 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 10:52:58,564 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,SelfDestructingSolverStorable16 [2022-10-16 10:52:58,565 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:52:58,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:52:58,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1892149553, now seen corresponding path program 3 times [2022-10-16 10:52:58,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:52:58,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693936304] [2022-10-16 10:52:58,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:58,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:52:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:52:58,794 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:52:58,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:52:58,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693936304] [2022-10-16 10:52:58,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693936304] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:52:58,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236466645] [2022-10-16 10:52:58,795 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:52:58,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:52:58,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:52:58,796 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 10:52:58,804 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 10:52:58,869 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 10:52:58,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:52:58,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:52:58,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:52:59,015 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:52:59,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:52:59,136 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:52:59,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236466645] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:52:59,137 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:52:59,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 22 [2022-10-16 10:52:59,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530517283] [2022-10-16 10:52:59,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:52:59,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 10:52:59,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:52:59,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 10:52:59,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:52:59,139 INFO L87 Difference]: Start difference. First operand 105 states and 126 transitions. Second operand has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:59,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:52:59,452 INFO L93 Difference]: Finished difference Result 238 states and 280 transitions. [2022-10-16 10:52:59,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-16 10:52:59,452 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-10-16 10:52:59,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:52:59,454 INFO L225 Difference]: With dead ends: 238 [2022-10-16 10:52:59,454 INFO L226 Difference]: Without dead ends: 161 [2022-10-16 10:52:59,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 46 SyntacticMatches, 9 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=183, Invalid=809, Unknown=0, NotChecked=0, Total=992 [2022-10-16 10:52:59,456 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 204 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:52:59,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 259 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:52:59,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-10-16 10:52:59,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 142. [2022-10-16 10:52:59,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 132 states have (on average 1.303030303030303) internal successors, (172), 141 states have internal predecessors, (172), 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 10:52:59,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 172 transitions. [2022-10-16 10:52:59,468 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 172 transitions. Word has length 32 [2022-10-16 10:52:59,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:52:59,469 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 172 transitions. [2022-10-16 10:52:59,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:52:59,469 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 172 transitions. [2022-10-16 10:52:59,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 10:52:59,469 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:52:59,470 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:52:59,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 10:52:59,685 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,SelfDestructingSolverStorable17 [2022-10-16 10:52:59,685 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:52:59,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:52:59,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1277475512, now seen corresponding path program 2 times [2022-10-16 10:52:59,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:52:59,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838299699] [2022-10-16 10:52:59,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:52:59,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:52:59,700 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:52:59,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1232497692] [2022-10-16 10:52:59,701 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:52:59,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:52:59,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:52:59,702 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 10:52:59,720 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 10:52:59,774 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:52:59,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:52:59,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:52:59,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:52:59,884 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:52:59,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:52:59,952 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:52:59,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:52:59,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838299699] [2022-10-16 10:52:59,952 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:52:59,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232497692] [2022-10-16 10:52:59,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232497692] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:52:59,953 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:52:59,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-10-16 10:52:59,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582462855] [2022-10-16 10:52:59,953 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:52:59,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:52:59,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:52:59,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:52:59,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:52:59,955 INFO L87 Difference]: Start difference. First operand 142 states and 172 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 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 10:53:00,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:53:00,155 INFO L93 Difference]: Finished difference Result 187 states and 223 transitions. [2022-10-16 10:53:00,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 10:53:00,156 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 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 34 [2022-10-16 10:53:00,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:53:00,157 INFO L225 Difference]: With dead ends: 187 [2022-10-16 10:53:00,157 INFO L226 Difference]: Without dead ends: 144 [2022-10-16 10:53:00,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 52 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-10-16 10:53:00,158 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 131 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:53:00,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 163 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:53:00,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-10-16 10:53:00,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2022-10-16 10:53:00,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 132 states have (on average 1.2878787878787878) internal successors, (170), 141 states have internal predecessors, (170), 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 10:53:00,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 170 transitions. [2022-10-16 10:53:00,168 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 170 transitions. Word has length 34 [2022-10-16 10:53:00,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:53:00,169 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 170 transitions. [2022-10-16 10:53:00,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 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 10:53:00,169 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 170 transitions. [2022-10-16 10:53:00,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 10:53:00,169 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:53:00,169 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:53:00,206 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 10:53:00,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:00,383 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:53:00,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:53:00,384 INFO L85 PathProgramCache]: Analyzing trace with hash 315378123, now seen corresponding path program 4 times [2022-10-16 10:53:00,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:53:00,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270131299] [2022-10-16 10:53:00,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:00,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:53:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:53:01,192 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:01,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:53:01,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270131299] [2022-10-16 10:53:01,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270131299] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:53:01,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632514724] [2022-10-16 10:53:01,193 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:53:01,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:01,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:53:01,194 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 10:53:01,218 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 10:53:01,275 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:53:01,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:53:01,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 33 conjunts are in the unsatisfiable core [2022-10-16 10:53:01,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:53:01,354 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 10:53:01,428 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:53:01,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:53:01,500 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:53:01,500 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:53:01,580 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:01,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:53:01,732 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 16 treesize of output 14 [2022-10-16 10:53:01,736 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 20 treesize of output 16 [2022-10-16 10:53:01,762 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:01,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632514724] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:53:01,763 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:53:01,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 32 [2022-10-16 10:53:01,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249197190] [2022-10-16 10:53:01,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:53:01,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 10:53:01,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:53:01,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 10:53:01,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=878, Unknown=0, NotChecked=0, Total=992 [2022-10-16 10:53:01,765 INFO L87 Difference]: Start difference. First operand 142 states and 170 transitions. Second operand has 32 states, 32 states have (on average 2.625) internal successors, (84), 32 states have internal predecessors, (84), 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 10:53:02,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:53:02,517 INFO L93 Difference]: Finished difference Result 199 states and 233 transitions. [2022-10-16 10:53:02,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 10:53:02,518 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.625) internal successors, (84), 32 states have internal predecessors, (84), 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 36 [2022-10-16 10:53:02,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:53:02,519 INFO L225 Difference]: With dead ends: 199 [2022-10-16 10:53:02,519 INFO L226 Difference]: Without dead ends: 146 [2022-10-16 10:53:02,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=1377, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 10:53:02,521 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 76 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 1088 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:53:02,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 740 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1088 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 10:53:02,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-10-16 10:53:02,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 133. [2022-10-16 10:53:02,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 123 states have (on average 1.2682926829268293) internal successors, (156), 132 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 10:53:02,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 156 transitions. [2022-10-16 10:53:02,531 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 156 transitions. Word has length 36 [2022-10-16 10:53:02,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:53:02,531 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 156 transitions. [2022-10-16 10:53:02,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.625) internal successors, (84), 32 states have internal predecessors, (84), 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 10:53:02,532 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 156 transitions. [2022-10-16 10:53:02,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 10:53:02,532 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:53:02,532 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:53:02,570 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 10:53:02,747 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,SelfDestructingSolverStorable19 [2022-10-16 10:53:02,748 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:53:02,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:53:02,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1855075176, now seen corresponding path program 3 times [2022-10-16 10:53:02,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:53:02,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104638423] [2022-10-16 10:53:02,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:02,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:53:02,778 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:53:02,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1100149660] [2022-10-16 10:53:02,779 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:53:02,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:02,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:53:02,780 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 10:53:02,784 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 10:53:02,857 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 10:53:02,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:53:02,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 30 conjunts are in the unsatisfiable core [2022-10-16 10:53:02,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:53:02,868 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 10:53:02,969 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 37 treesize of output 17 [2022-10-16 10:53:03,191 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 18 treesize of output 20 [2022-10-16 10:53:03,339 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:53:03,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:53:03,556 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_76| Int) (v_ArrVal_467 (Array Int Int))) (or (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_467) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_76| 4) |c_ULTIMATE.start_main_~a~0#1.offset|))) (< |v_ULTIMATE.start_main_~i~0#1_76| 1) (not (< |v_ULTIMATE.start_main_~i~0#1_76| c_~N~0)))) is different from false [2022-10-16 10:53:03,571 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_76| Int) (v_ArrVal_467 (Array Int Int))) (or (< |c_ULTIMATE.start_main_~i~0#1| (+ |v_ULTIMATE.start_main_~i~0#1_76| 1)) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_467) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_76| 4) |c_ULTIMATE.start_main_~a~0#1.offset|))) (< |v_ULTIMATE.start_main_~i~0#1_76| 1))) is different from false [2022-10-16 10:53:03,586 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_76| Int) (v_ArrVal_467 (Array Int Int))) (or (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_467) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_76| 4) |c_ULTIMATE.start_main_~a~0#1.offset|))) (< |v_ULTIMATE.start_main_~i~0#1_76| 1) (< |c_ULTIMATE.start_main_#t~post7#1| |v_ULTIMATE.start_main_~i~0#1_76|))) is different from false [2022-10-16 10:53:03,610 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_76| Int) (v_ArrVal_467 (Array Int Int))) (or (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_467) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_76| 4) |c_ULTIMATE.start_main_~a~0#1.offset|))) (< |v_ULTIMATE.start_main_~i~0#1_76| 1) (< |c_ULTIMATE.start_main_~i~0#1| |v_ULTIMATE.start_main_~i~0#1_76|))) is different from false [2022-10-16 10:53:03,777 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:53:03,778 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 33 [2022-10-16 10:53:03,818 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:53:03,818 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 38 [2022-10-16 10:53:03,824 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 13 treesize of output 7 [2022-10-16 10:53:04,018 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 5 not checked. [2022-10-16 10:53:04,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:53:04,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104638423] [2022-10-16 10:53:04,019 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:53:04,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100149660] [2022-10-16 10:53:04,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100149660] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:53:04,019 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:53:04,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 31 [2022-10-16 10:53:04,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423048710] [2022-10-16 10:53:04,019 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:53:04,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-10-16 10:53:04,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:53:04,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-10-16 10:53:04,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=606, Unknown=9, NotChecked=212, Total=930 [2022-10-16 10:53:04,021 INFO L87 Difference]: Start difference. First operand 133 states and 156 transitions. Second operand has 31 states, 31 states have (on average 2.032258064516129) internal successors, (63), 31 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:53:04,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:53:04,709 INFO L93 Difference]: Finished difference Result 188 states and 231 transitions. [2022-10-16 10:53:04,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 10:53:04,709 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.032258064516129) internal successors, (63), 31 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-10-16 10:53:04,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:53:04,711 INFO L225 Difference]: With dead ends: 188 [2022-10-16 10:53:04,711 INFO L226 Difference]: Without dead ends: 161 [2022-10-16 10:53:04,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 52 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 4 IntricatePredicates, 1 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=199, Invalid=1126, Unknown=23, NotChecked=292, Total=1640 [2022-10-16 10:53:04,714 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 37 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 347 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:53:04,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 306 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 111 Invalid, 0 Unknown, 347 Unchecked, 0.1s Time] [2022-10-16 10:53:04,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-10-16 10:53:04,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 159. [2022-10-16 10:53:04,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 149 states have (on average 1.2885906040268456) internal successors, (192), 158 states have internal predecessors, (192), 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 10:53:04,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 192 transitions. [2022-10-16 10:53:04,730 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 192 transitions. Word has length 41 [2022-10-16 10:53:04,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:53:04,731 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 192 transitions. [2022-10-16 10:53:04,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.032258064516129) internal successors, (63), 31 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:53:04,731 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 192 transitions. [2022-10-16 10:53:04,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 10:53:04,732 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:53:04,732 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:53:04,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 10:53:04,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:04,947 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:53:04,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:53:04,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1855074984, now seen corresponding path program 1 times [2022-10-16 10:53:04,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:53:04,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955030897] [2022-10-16 10:53:04,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:04,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:53:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:53:05,389 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:53:05,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:53:05,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955030897] [2022-10-16 10:53:05,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955030897] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:53:05,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456948277] [2022-10-16 10:53:05,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:05,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:05,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:53:05,391 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:53:05,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 10:53:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:53:05,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 10:53:05,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:53:05,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 10:53:05,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 10:53:05,524 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 14 treesize of output 16 [2022-10-16 10:53:05,548 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 14 treesize of output 16 [2022-10-16 10:53:05,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 10:53:05,613 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 14 treesize of output 16 [2022-10-16 10:53:05,723 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 0 case distinctions, treesize of input 47 treesize of output 30 [2022-10-16 10:53:05,857 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:53:05,857 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 30 [2022-10-16 10:53:05,877 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:53:05,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:53:08,323 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_510 Int) (|ULTIMATE.start_main_~i~0#1| Int) (|ULTIMATE.start_main_~a~0#1.offset| Int) (v_ArrVal_509 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_86| Int)) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_509))) (let ((.cse0 (select .cse3 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse2 (select (select (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_510)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_86| 4)))) (.cse1 (select v_ArrVal_509 (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4))))) (or (< (+ (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse1) v_ArrVal_510) (< (+ v_ArrVal_510 .cse2) 9223372036854775808) (< 5 .cse2) (< 5 .cse1)))))) is different from false [2022-10-16 10:53:08,836 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 5 not checked. [2022-10-16 10:53:08,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456948277] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:53:08,836 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:53:08,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 21 [2022-10-16 10:53:08,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135394676] [2022-10-16 10:53:08,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:53:08,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 10:53:08,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:53:08,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 10:53:08,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=324, Unknown=2, NotChecked=38, Total=462 [2022-10-16 10:53:08,840 INFO L87 Difference]: Start difference. First operand 159 states and 192 transitions. Second operand has 22 states, 21 states have (on average 4.285714285714286) internal successors, (90), 22 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:53:09,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:53:09,177 INFO L93 Difference]: Finished difference Result 180 states and 218 transitions. [2022-10-16 10:53:09,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 10:53:09,178 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.285714285714286) internal successors, (90), 22 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-10-16 10:53:09,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:53:09,179 INFO L225 Difference]: With dead ends: 180 [2022-10-16 10:53:09,179 INFO L226 Difference]: Without dead ends: 179 [2022-10-16 10:53:09,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=169, Invalid=535, Unknown=2, NotChecked=50, Total=756 [2022-10-16 10:53:09,181 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 43 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 108 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:53:09,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 280 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 50 Invalid, 0 Unknown, 108 Unchecked, 0.1s Time] [2022-10-16 10:53:09,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-10-16 10:53:09,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 173. [2022-10-16 10:53:09,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 163 states have (on average 1.294478527607362) internal successors, (211), 172 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 10:53:09,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 211 transitions. [2022-10-16 10:53:09,198 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 211 transitions. Word has length 41 [2022-10-16 10:53:09,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:53:09,199 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 211 transitions. [2022-10-16 10:53:09,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.285714285714286) internal successors, (90), 22 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:53:09,199 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 211 transitions. [2022-10-16 10:53:09,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 10:53:09,200 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:53:09,200 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:53:09,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 10:53:09,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:09,414 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:53:09,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:53:09,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1672749764, now seen corresponding path program 1 times [2022-10-16 10:53:09,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:53:09,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098357801] [2022-10-16 10:53:09,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:09,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:53:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:53:09,636 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:53:09,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:53:09,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098357801] [2022-10-16 10:53:09,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098357801] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:53:09,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700944523] [2022-10-16 10:53:09,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:09,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:09,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:53:09,638 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:53:09,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 10:53:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:53:09,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 10:53:09,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:53:09,728 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 11 treesize of output 7 [2022-10-16 10:53:09,765 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:53:09,766 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 31 [2022-10-16 10:53:09,786 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:53:09,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:53:09,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700944523] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:53:09,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:53:09,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-10-16 10:53:09,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810876639] [2022-10-16 10:53:09,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:53:09,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 10:53:09,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:53:09,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 10:53:09,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-10-16 10:53:09,789 INFO L87 Difference]: Start difference. First operand 173 states and 211 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 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 10:53:09,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:53:09,876 INFO L93 Difference]: Finished difference Result 173 states and 211 transitions. [2022-10-16 10:53:09,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 10:53:09,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 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 42 [2022-10-16 10:53:09,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:53:09,878 INFO L225 Difference]: With dead ends: 173 [2022-10-16 10:53:09,878 INFO L226 Difference]: Without dead ends: 172 [2022-10-16 10:53:09,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:53:09,879 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 30 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:53:09,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 77 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:53:09,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-10-16 10:53:09,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2022-10-16 10:53:09,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 163 states have (on average 1.2638036809815951) internal successors, (206), 171 states have internal predecessors, (206), 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 10:53:09,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 206 transitions. [2022-10-16 10:53:09,895 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 206 transitions. Word has length 42 [2022-10-16 10:53:09,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:53:09,895 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 206 transitions. [2022-10-16 10:53:09,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 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 10:53:09,896 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 206 transitions. [2022-10-16 10:53:09,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 10:53:09,896 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:53:09,896 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:53:09,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 10:53:10,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-10-16 10:53:10,111 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:53:10,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:53:10,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1687435661, now seen corresponding path program 5 times [2022-10-16 10:53:10,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:53:10,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079846349] [2022-10-16 10:53:10,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:10,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:53:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:53:10,406 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:10,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:53:10,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079846349] [2022-10-16 10:53:10,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079846349] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:53:10,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812686455] [2022-10-16 10:53:10,408 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 10:53:10,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:10,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:53:10,409 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:53:10,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 10:53:10,528 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-10-16 10:53:10,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:53:10,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:53:10,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:53:10,811 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:10,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:53:10,990 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:10,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812686455] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:53:10,990 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:53:10,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 28 [2022-10-16 10:53:10,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587009327] [2022-10-16 10:53:10,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:53:10,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-16 10:53:10,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:53:10,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-16 10:53:10,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2022-10-16 10:53:10,993 INFO L87 Difference]: Start difference. First operand 172 states and 206 transitions. Second operand has 28 states, 28 states have (on average 2.8214285714285716) internal successors, (79), 28 states have internal predecessors, (79), 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 10:53:11,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:53:11,471 INFO L93 Difference]: Finished difference Result 326 states and 391 transitions. [2022-10-16 10:53:11,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 10:53:11,472 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.8214285714285716) internal successors, (79), 28 states have internal predecessors, (79), 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 43 [2022-10-16 10:53:11,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:53:11,473 INFO L225 Difference]: With dead ends: 326 [2022-10-16 10:53:11,473 INFO L226 Difference]: Without dead ends: 253 [2022-10-16 10:53:11,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 62 SyntacticMatches, 13 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=332, Invalid=1648, Unknown=0, NotChecked=0, Total=1980 [2022-10-16 10:53:11,475 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 273 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:53:11,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 254 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:53:11,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-10-16 10:53:11,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 216. [2022-10-16 10:53:11,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 207 states have (on average 1.2367149758454106) internal successors, (256), 215 states have internal predecessors, (256), 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 10:53:11,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 256 transitions. [2022-10-16 10:53:11,493 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 256 transitions. Word has length 43 [2022-10-16 10:53:11,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:53:11,493 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 256 transitions. [2022-10-16 10:53:11,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.8214285714285716) internal successors, (79), 28 states have internal predecessors, (79), 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 10:53:11,494 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 256 transitions. [2022-10-16 10:53:11,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 10:53:11,494 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:53:11,495 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:53:11,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 10:53:11,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:11,708 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:53:11,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:53:11,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1194758214, now seen corresponding path program 1 times [2022-10-16 10:53:11,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:53:11,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491578386] [2022-10-16 10:53:11,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:11,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:53:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:53:11,846 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:53:11,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:53:11,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491578386] [2022-10-16 10:53:11,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491578386] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:53:11,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958178810] [2022-10-16 10:53:11,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:11,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:11,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:53:11,848 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:53:11,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 10:53:11,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:53:11,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:53:11,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:53:11,945 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:53:11,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:53:11,985 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:53:11,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958178810] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:53:11,986 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:53:11,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:53:11,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486056273] [2022-10-16 10:53:11,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:53:11,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:53:11,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:53:11,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:53:11,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:53:11,988 INFO L87 Difference]: Start difference. First operand 216 states and 256 transitions. Second operand has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:53:12,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:53:12,141 INFO L93 Difference]: Finished difference Result 290 states and 349 transitions. [2022-10-16 10:53:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:53:12,141 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-10-16 10:53:12,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:53:12,143 INFO L225 Difference]: With dead ends: 290 [2022-10-16 10:53:12,143 INFO L226 Difference]: Without dead ends: 289 [2022-10-16 10:53:12,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 81 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 10:53:12,144 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 118 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:53:12,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 123 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:53:12,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-10-16 10:53:12,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 264. [2022-10-16 10:53:12,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 255 states have (on average 1.2901960784313726) internal successors, (329), 263 states have internal predecessors, (329), 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 10:53:12,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 329 transitions. [2022-10-16 10:53:12,165 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 329 transitions. Word has length 44 [2022-10-16 10:53:12,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:53:12,166 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 329 transitions. [2022-10-16 10:53:12,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:53:12,166 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 329 transitions. [2022-10-16 10:53:12,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 10:53:12,166 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:53:12,167 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:53:12,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 10:53:12,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:12,382 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:53:12,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:53:12,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1617200910, now seen corresponding path program 1 times [2022-10-16 10:53:12,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:53:12,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762828842] [2022-10-16 10:53:12,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:12,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:53:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:53:12,467 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:53:12,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:53:12,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762828842] [2022-10-16 10:53:12,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762828842] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:53:12,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706971596] [2022-10-16 10:53:12,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:12,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:12,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:53:12,470 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:53:12,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 10:53:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:53:12,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:53:12,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:53:12,614 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:53:12,614 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:53:12,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706971596] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:53:12,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:53:12,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:53:12,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512209456] [2022-10-16 10:53:12,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:53:12,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:53:12,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:53:12,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:53:12,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:53:12,617 INFO L87 Difference]: Start difference. First operand 264 states and 329 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 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 10:53:12,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:53:12,707 INFO L93 Difference]: Finished difference Result 266 states and 329 transitions. [2022-10-16 10:53:12,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:53:12,708 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 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 45 [2022-10-16 10:53:12,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:53:12,709 INFO L225 Difference]: With dead ends: 266 [2022-10-16 10:53:12,710 INFO L226 Difference]: Without dead ends: 265 [2022-10-16 10:53:12,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 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 10:53:12,711 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 29 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:53:12,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 117 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:53:12,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-10-16 10:53:12,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2022-10-16 10:53:12,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 255 states have (on average 1.2509803921568627) internal successors, (319), 262 states have internal predecessors, (319), 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 10:53:12,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 319 transitions. [2022-10-16 10:53:12,732 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 319 transitions. Word has length 45 [2022-10-16 10:53:12,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:53:12,733 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 319 transitions. [2022-10-16 10:53:12,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 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 10:53:12,733 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 319 transitions. [2022-10-16 10:53:12,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 10:53:12,734 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:53:12,734 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:53:12,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 10:53:12,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:12,949 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:53:12,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:53:12,950 INFO L85 PathProgramCache]: Analyzing trace with hash 411246071, now seen corresponding path program 6 times [2022-10-16 10:53:12,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:53:12,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475016781] [2022-10-16 10:53:12,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:12,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:53:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:53:13,948 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:13,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:53:13,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475016781] [2022-10-16 10:53:13,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475016781] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:53:13,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770101060] [2022-10-16 10:53:13,949 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 10:53:13,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:13,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:53:13,950 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:53:13,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 10:53:14,051 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-10-16 10:53:14,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:53:14,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 43 conjunts are in the unsatisfiable core [2022-10-16 10:53:14,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:53:14,167 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 10:53:14,235 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:53:14,236 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:53:14,317 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:53:14,317 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:53:14,401 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:53:14,401 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:53:14,501 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:14,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:53:14,762 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 16 treesize of output 14 [2022-10-16 10:53:14,765 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 20 treesize of output 16 [2022-10-16 10:53:14,804 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:14,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770101060] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:53:14,805 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:53:14,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 42 [2022-10-16 10:53:14,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571063330] [2022-10-16 10:53:14,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:53:14,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-10-16 10:53:14,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:53:14,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-10-16 10:53:14,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1571, Unknown=0, NotChecked=0, Total=1722 [2022-10-16 10:53:14,808 INFO L87 Difference]: Start difference. First operand 263 states and 319 transitions. Second operand has 42 states, 42 states have (on average 2.6904761904761907) internal successors, (113), 42 states have internal predecessors, (113), 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 10:53:15,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:53:15,981 INFO L93 Difference]: Finished difference Result 354 states and 433 transitions. [2022-10-16 10:53:15,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 10:53:15,986 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 2.6904761904761907) internal successors, (113), 42 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-10-16 10:53:15,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:53:15,988 INFO L225 Difference]: With dead ends: 354 [2022-10-16 10:53:15,988 INFO L226 Difference]: Without dead ends: 273 [2022-10-16 10:53:15,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 72 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 818 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=245, Invalid=2511, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 10:53:15,992 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 136 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 1588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 10:53:15,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 871 Invalid, 1588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1541 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 10:53:15,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-10-16 10:53:16,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 259. [2022-10-16 10:53:16,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 251 states have (on average 1.2430278884462151) internal successors, (312), 258 states have internal predecessors, (312), 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 10:53:16,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 312 transitions. [2022-10-16 10:53:16,014 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 312 transitions. Word has length 47 [2022-10-16 10:53:16,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:53:16,014 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 312 transitions. [2022-10-16 10:53:16,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.6904761904761907) internal successors, (113), 42 states have internal predecessors, (113), 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 10:53:16,015 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 312 transitions. [2022-10-16 10:53:16,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 10:53:16,015 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:53:16,015 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:53:16,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 10:53:16,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 10:53:16,230 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:53:16,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:53:16,230 INFO L85 PathProgramCache]: Analyzing trace with hash 377560238, now seen corresponding path program 1 times [2022-10-16 10:53:16,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:53:16,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826614240] [2022-10-16 10:53:16,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:16,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:53:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:53:16,326 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-10-16 10:53:16,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:53:16,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826614240] [2022-10-16 10:53:16,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826614240] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:53:16,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089493975] [2022-10-16 10:53:16,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:16,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:16,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:53:16,328 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:53:16,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 10:53:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:53:16,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 10:53:16,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:53:16,535 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:53:16,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:53:16,716 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:53:16,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089493975] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:53:16,717 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:53:16,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 24 [2022-10-16 10:53:16,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543797464] [2022-10-16 10:53:16,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:53:16,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 10:53:16,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:53:16,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 10:53:16,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2022-10-16 10:53:16,719 INFO L87 Difference]: Start difference. First operand 259 states and 312 transitions. Second operand has 25 states, 24 states have (on average 4.416666666666667) internal successors, (106), 25 states have internal predecessors, (106), 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 10:53:17,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:53:17,243 INFO L93 Difference]: Finished difference Result 565 states and 673 transitions. [2022-10-16 10:53:17,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-10-16 10:53:17,244 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.416666666666667) internal successors, (106), 25 states have internal predecessors, (106), 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 49 [2022-10-16 10:53:17,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:53:17,247 INFO L225 Difference]: With dead ends: 565 [2022-10-16 10:53:17,248 INFO L226 Difference]: Without dead ends: 558 [2022-10-16 10:53:17,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=508, Invalid=1748, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 10:53:17,250 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 475 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:53:17,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 332 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:53:17,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-10-16 10:53:17,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 335. [2022-10-16 10:53:17,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 327 states have (on average 1.238532110091743) internal successors, (405), 334 states have internal predecessors, (405), 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 10:53:17,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 405 transitions. [2022-10-16 10:53:17,295 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 405 transitions. Word has length 49 [2022-10-16 10:53:17,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:53:17,295 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 405 transitions. [2022-10-16 10:53:17,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.416666666666667) internal successors, (106), 25 states have internal predecessors, (106), 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 10:53:17,296 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 405 transitions. [2022-10-16 10:53:17,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 10:53:17,296 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:53:17,297 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:53:17,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 10:53:17,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 10:53:17,510 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:53:17,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:53:17,513 INFO L85 PathProgramCache]: Analyzing trace with hash 522181700, now seen corresponding path program 4 times [2022-10-16 10:53:17,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:53:17,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445699350] [2022-10-16 10:53:17,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:17,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:53:17,528 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:53:17,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1763072022] [2022-10-16 10:53:17,529 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:53:17,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:17,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:53:17,530 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:53:17,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 10:53:17,623 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:53:17,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:53:17,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 10:53:17,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:53:17,765 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 17 [2022-10-16 10:53:17,876 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:53:17,876 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:53:17,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:53:17,975 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 10:53:18,040 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-10-16 10:53:18,054 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:53:18,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:53:18,122 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_800 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 5)) is different from false [2022-10-16 10:53:18,137 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_800 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) is different from false [2022-10-16 10:53:18,158 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_800 (Array Int Int)) (v_ArrVal_798 Int)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_798)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) is different from false [2022-10-16 10:53:18,186 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_126| Int)) (or (forall ((v_ArrVal_800 (Array Int Int)) (v_ArrVal_798 Int)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_126| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_798)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_126|)))) is different from false [2022-10-16 10:53:18,210 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_126| Int) (v_ArrVal_800 (Array Int Int)) (v_ArrVal_798 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_126| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_798)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_126| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2022-10-16 10:53:20,227 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_126| Int) (v_ArrVal_800 (Array Int Int)) (v_ArrVal_798 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ |c_ULTIMATE.start_main_#t~mem9#1| 4)) (+ (* |v_ULTIMATE.start_main_~i~0#1_126| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_798)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_126| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2022-10-16 10:53:21,798 INFO L356 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-10-16 10:53:21,799 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 43 [2022-10-16 10:53:21,805 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:53:21,805 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 34 [2022-10-16 10:53:21,942 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 24 not checked. [2022-10-16 10:53:21,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:53:21,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445699350] [2022-10-16 10:53:21,943 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:53:21,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763072022] [2022-10-16 10:53:21,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763072022] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:53:21,943 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:53:21,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 31 [2022-10-16 10:53:21,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865657286] [2022-10-16 10:53:21,944 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:53:21,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-10-16 10:53:21,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:53:21,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-10-16 10:53:21,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=510, Unknown=6, NotChecked=306, Total=930 [2022-10-16 10:53:21,945 INFO L87 Difference]: Start difference. First operand 335 states and 405 transitions. Second operand has 31 states, 31 states have (on average 2.6451612903225805) internal successors, (82), 31 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 10:53:22,989 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_126| Int) (v_ArrVal_800 (Array Int Int)) (v_ArrVal_798 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_126| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_798)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_126| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (<= (+ 2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.base|) (= 5 (select .cse0 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|))) (= |c_ULTIMATE.start_main_~i~0#1| 1))) is different from false [2022-10-16 10:53:25,013 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (= 5 (select .cse0 .cse1)) (<= (+ 2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.base|) (forall ((|v_ULTIMATE.start_main_~i~0#1_126| Int)) (or (forall ((v_ArrVal_800 (Array Int Int)) (v_ArrVal_798 Int)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_126| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_798)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_126|)))) (<= 1 |c_ULTIMATE.start_main_#t~post7#1|))) is different from false [2022-10-16 10:53:26,464 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (= 5 (select .cse0 .cse1)) (<= (+ 2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.base|) (forall ((|v_ULTIMATE.start_main_~i~0#1_126| Int) (v_ArrVal_800 (Array Int Int)) (v_ArrVal_798 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse0 .cse2 (+ |c_ULTIMATE.start_main_#t~mem9#1| 4)) (+ (* |v_ULTIMATE.start_main_~i~0#1_126| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_798)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_126| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (forall ((v_ArrVal_800 (Array Int Int)) (v_ArrVal_798 Int)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 .cse2 v_ArrVal_798)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (<= 2 |c_ULTIMATE.start_main_~i~0#1|))) is different from false [2022-10-16 10:53:27,394 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_126| Int) (v_ArrVal_800 (Array Int Int)) (v_ArrVal_798 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_126| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_798)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_126| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (= 5 (select .cse0 .cse1)) (<= (+ 2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.base|) (forall ((v_ArrVal_800 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))))) is different from false [2022-10-16 10:53:29,412 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (= 5 (select .cse0 .cse1)) (<= (+ 2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.base|) (forall ((|v_ULTIMATE.start_main_~i~0#1_126| Int)) (or (forall ((v_ArrVal_800 (Array Int Int)) (v_ArrVal_798 Int)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_126| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_798)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_126|)))) (forall ((v_ArrVal_800 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_800) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))))) is different from false [2022-10-16 10:53:29,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:53:29,748 INFO L93 Difference]: Finished difference Result 521 states and 647 transitions. [2022-10-16 10:53:29,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 10:53:29,749 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.6451612903225805) internal successors, (82), 31 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 52 [2022-10-16 10:53:29,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:53:29,751 INFO L225 Difference]: With dead ends: 521 [2022-10-16 10:53:29,751 INFO L226 Difference]: Without dead ends: 452 [2022-10-16 10:53:29,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 74 SyntacticMatches, 7 SemanticMatches, 40 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=167, Invalid=796, Unknown=11, NotChecked=748, Total=1722 [2022-10-16 10:53:29,753 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 100 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 407 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:53:29,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 365 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 443 Invalid, 0 Unknown, 407 Unchecked, 0.3s Time] [2022-10-16 10:53:29,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-10-16 10:53:29,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 359. [2022-10-16 10:53:29,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 351 states have (on average 1.227920227920228) internal successors, (431), 358 states have internal predecessors, (431), 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 10:53:29,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 431 transitions. [2022-10-16 10:53:29,787 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 431 transitions. Word has length 52 [2022-10-16 10:53:29,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:53:29,787 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 431 transitions. [2022-10-16 10:53:29,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.6451612903225805) internal successors, (82), 31 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 10:53:29,788 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 431 transitions. [2022-10-16 10:53:29,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 10:53:29,788 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:53:29,789 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:53:29,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-10-16 10:53:30,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 10:53:30,004 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:53:30,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:53:30,005 INFO L85 PathProgramCache]: Analyzing trace with hash 819079367, now seen corresponding path program 7 times [2022-10-16 10:53:30,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:53:30,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418824741] [2022-10-16 10:53:30,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:30,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:53:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:53:30,377 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 28 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:30,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:53:30,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418824741] [2022-10-16 10:53:30,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418824741] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:53:30,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949183390] [2022-10-16 10:53:30,378 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 10:53:30,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:30,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:53:30,380 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:53:30,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 10:53:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:53:30,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-16 10:53:30,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:53:30,761 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 50 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:30,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:53:31,068 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 50 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:31,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949183390] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:53:31,069 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:53:31,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 34 [2022-10-16 10:53:31,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683559154] [2022-10-16 10:53:31,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:53:31,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 10:53:31,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:53:31,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 10:53:31,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=954, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 10:53:31,078 INFO L87 Difference]: Start difference. First operand 359 states and 431 transitions. Second operand has 34 states, 34 states have (on average 2.8529411764705883) internal successors, (97), 34 states have internal predecessors, (97), 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 10:53:32,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:53:32,004 INFO L93 Difference]: Finished difference Result 538 states and 642 transitions. [2022-10-16 10:53:32,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-10-16 10:53:32,005 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.8529411764705883) internal successors, (97), 34 states have internal predecessors, (97), 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 54 [2022-10-16 10:53:32,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:53:32,007 INFO L225 Difference]: With dead ends: 538 [2022-10-16 10:53:32,007 INFO L226 Difference]: Without dead ends: 454 [2022-10-16 10:53:32,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 78 SyntacticMatches, 17 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1401 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=599, Invalid=3183, Unknown=0, NotChecked=0, Total=3782 [2022-10-16 10:53:32,010 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 333 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:53:32,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 339 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 10:53:32,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2022-10-16 10:53:32,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 382. [2022-10-16 10:53:32,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 374 states have (on average 1.2192513368983957) internal successors, (456), 381 states have internal predecessors, (456), 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 10:53:32,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 456 transitions. [2022-10-16 10:53:32,049 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 456 transitions. Word has length 54 [2022-10-16 10:53:32,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:53:32,050 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 456 transitions. [2022-10-16 10:53:32,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.8529411764705883) internal successors, (97), 34 states have internal predecessors, (97), 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 10:53:32,050 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 456 transitions. [2022-10-16 10:53:32,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-16 10:53:32,058 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:53:32,058 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:53:32,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-10-16 10:53:32,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:32,272 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:53:32,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:53:32,273 INFO L85 PathProgramCache]: Analyzing trace with hash -878456120, now seen corresponding path program 5 times [2022-10-16 10:53:32,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:53:32,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311855090] [2022-10-16 10:53:32,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:32,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:53:32,295 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:53:32,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [658180803] [2022-10-16 10:53:32,296 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 10:53:32,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:32,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:53:32,297 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:53:32,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-16 10:53:32,440 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-10-16 10:53:32,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:53:32,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-16 10:53:32,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:53:32,615 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 10:53:32,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:53:32,825 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 10:53:32,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:53:32,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311855090] [2022-10-16 10:53:32,826 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:53:32,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658180803] [2022-10-16 10:53:32,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658180803] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:53:32,826 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:53:32,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 25 [2022-10-16 10:53:32,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610001053] [2022-10-16 10:53:32,827 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:53:32,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 10:53:32,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:53:32,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 10:53:32,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=490, Unknown=0, NotChecked=0, Total=600 [2022-10-16 10:53:32,828 INFO L87 Difference]: Start difference. First operand 382 states and 456 transitions. Second operand has 25 states, 25 states have (on average 3.44) internal successors, (86), 25 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:53:33,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:53:33,507 INFO L93 Difference]: Finished difference Result 478 states and 556 transitions. [2022-10-16 10:53:33,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-16 10:53:33,509 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.44) internal successors, (86), 25 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-10-16 10:53:33,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:53:33,511 INFO L225 Difference]: With dead ends: 478 [2022-10-16 10:53:33,512 INFO L226 Difference]: Without dead ends: 396 [2022-10-16 10:53:33,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 82 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=371, Invalid=1699, Unknown=0, NotChecked=0, Total=2070 [2022-10-16 10:53:33,514 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 188 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:53:33,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 319 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:53:33,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-10-16 10:53:33,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 392. [2022-10-16 10:53:33,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 384 states have (on average 1.2109375) internal successors, (465), 391 states have internal predecessors, (465), 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 10:53:33,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 465 transitions. [2022-10-16 10:53:33,551 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 465 transitions. Word has length 55 [2022-10-16 10:53:33,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:53:33,551 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 465 transitions. [2022-10-16 10:53:33,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.44) internal successors, (86), 25 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:53:33,552 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 465 transitions. [2022-10-16 10:53:33,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 10:53:33,553 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:53:33,553 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:53:33,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2022-10-16 10:53:33,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:33,767 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:53:33,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:53:33,768 INFO L85 PathProgramCache]: Analyzing trace with hash -970475837, now seen corresponding path program 8 times [2022-10-16 10:53:33,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:53:33,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273208829] [2022-10-16 10:53:33,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:33,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:53:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:53:34,869 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:34,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:53:34,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273208829] [2022-10-16 10:53:34,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273208829] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:53:34,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746520183] [2022-10-16 10:53:34,870 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:53:34,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:34,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:53:34,872 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:53:34,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-10-16 10:53:34,974 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:53:34,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:53:34,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 53 conjunts are in the unsatisfiable core [2022-10-16 10:53:34,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:53:35,043 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 10:53:35,102 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:53:35,103 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:53:35,169 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:53:35,170 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:53:35,264 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:53:35,265 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:53:35,364 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:53:35,365 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:53:35,475 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:35,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:53:35,610 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 16 treesize of output 14 [2022-10-16 10:53:35,612 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 20 treesize of output 16 [2022-10-16 10:53:35,679 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:35,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746520183] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:53:35,680 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:53:35,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22, 22] total 32 [2022-10-16 10:53:35,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946876674] [2022-10-16 10:53:35,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:53:35,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 10:53:35,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:53:35,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 10:53:35,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=903, Unknown=0, NotChecked=0, Total=992 [2022-10-16 10:53:35,682 INFO L87 Difference]: Start difference. First operand 392 states and 465 transitions. Second operand has 32 states, 32 states have (on average 2.875) internal successors, (92), 32 states have internal predecessors, (92), 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 10:53:37,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:53:37,122 INFO L93 Difference]: Finished difference Result 563 states and 687 transitions. [2022-10-16 10:53:37,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-16 10:53:37,123 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.875) internal successors, (92), 32 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-10-16 10:53:37,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:53:37,125 INFO L225 Difference]: With dead ends: 563 [2022-10-16 10:53:37,125 INFO L226 Difference]: Without dead ends: 419 [2022-10-16 10:53:37,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 106 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=167, Invalid=1813, Unknown=0, NotChecked=0, Total=1980 [2022-10-16 10:53:37,127 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 96 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 1967 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 2001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:53:37,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 923 Invalid, 2001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1967 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 10:53:37,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-10-16 10:53:37,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 394. [2022-10-16 10:53:37,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 386 states have (on average 1.2098445595854923) internal successors, (467), 393 states have internal predecessors, (467), 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 10:53:37,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 467 transitions. [2022-10-16 10:53:37,166 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 467 transitions. Word has length 58 [2022-10-16 10:53:37,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:53:37,166 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 467 transitions. [2022-10-16 10:53:37,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.875) internal successors, (92), 32 states have internal predecessors, (92), 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 10:53:37,167 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 467 transitions. [2022-10-16 10:53:37,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 10:53:37,168 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:53:37,168 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:53:37,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-10-16 10:53:37,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-10-16 10:53:37,384 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:53:37,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:53:37,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1085736359, now seen corresponding path program 6 times [2022-10-16 10:53:37,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:53:37,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919009284] [2022-10-16 10:53:37,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:37,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:53:37,402 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:53:37,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1850444012] [2022-10-16 10:53:37,403 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 10:53:37,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:37,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:53:37,404 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:53:37,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-10-16 10:53:37,518 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-10-16 10:53:37,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:53:37,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 49 conjunts are in the unsatisfiable core [2022-10-16 10:53:37,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:53:37,530 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 10:53:37,848 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 37 treesize of output 17 [2022-10-16 10:53:38,141 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 18 treesize of output 20 [2022-10-16 10:53:38,300 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 18 treesize of output 20 [2022-10-16 10:53:38,507 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 10:53:38,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:53:38,628 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_999 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_999) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) is different from false [2022-10-16 10:53:38,641 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_999 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_999) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_#t~post11#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:53:38,650 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_999 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_999) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:53:38,667 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_999 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_999) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:53:39,028 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:53:39,028 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 31 [2022-10-16 10:53:39,038 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:53:39,039 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 34 [2022-10-16 10:53:39,373 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 9 trivial. 11 not checked. [2022-10-16 10:53:39,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:53:39,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919009284] [2022-10-16 10:53:39,375 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:53:39,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850444012] [2022-10-16 10:53:39,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850444012] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:53:39,375 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:53:39,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 40 [2022-10-16 10:53:39,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064480000] [2022-10-16 10:53:39,376 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:53:39,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 10:53:39,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:53:39,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 10:53:39,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1118, Unknown=5, NotChecked=284, Total=1560 [2022-10-16 10:53:39,378 INFO L87 Difference]: Start difference. First operand 394 states and 467 transitions. Second operand has 40 states, 40 states have (on average 2.05) internal successors, (82), 40 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 10:53:40,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:53:40,707 INFO L93 Difference]: Finished difference Result 396 states and 467 transitions. [2022-10-16 10:53:40,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-16 10:53:40,711 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.05) internal successors, (82), 40 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 59 [2022-10-16 10:53:40,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:53:40,714 INFO L225 Difference]: With dead ends: 396 [2022-10-16 10:53:40,714 INFO L226 Difference]: Without dead ends: 352 [2022-10-16 10:53:40,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 82 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 4 IntricatePredicates, 3 DeprecatedPredicates, 699 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=402, Invalid=2801, Unknown=5, NotChecked=452, Total=3660 [2022-10-16 10:53:40,717 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 121 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 706 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:53:40,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 432 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 478 Invalid, 0 Unknown, 706 Unchecked, 0.3s Time] [2022-10-16 10:53:40,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-10-16 10:53:40,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2022-10-16 10:53:40,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 344 states have (on average 1.2296511627906976) internal successors, (423), 351 states have internal predecessors, (423), 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 10:53:40,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 423 transitions. [2022-10-16 10:53:40,747 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 423 transitions. Word has length 59 [2022-10-16 10:53:40,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:53:40,748 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 423 transitions. [2022-10-16 10:53:40,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.05) internal successors, (82), 40 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 10:53:40,748 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 423 transitions. [2022-10-16 10:53:40,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-16 10:53:40,749 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:53:40,749 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:53:40,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-10-16 10:53:40,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-10-16 10:53:40,963 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:53:40,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:53:40,963 INFO L85 PathProgramCache]: Analyzing trace with hash -2026433844, now seen corresponding path program 2 times [2022-10-16 10:53:40,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:53:40,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993805424] [2022-10-16 10:53:40,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:40,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:53:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:53:41,158 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 10:53:41,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:53:41,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993805424] [2022-10-16 10:53:41,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993805424] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:53:41,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372115762] [2022-10-16 10:53:41,159 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:53:41,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:41,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:53:41,161 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:53:41,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-10-16 10:53:41,252 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 10:53:41,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:53:41,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:53:41,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:53:41,336 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 10:53:41,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:53:41,406 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 10:53:41,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372115762] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:53:41,406 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:53:41,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-16 10:53:41,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203083871] [2022-10-16 10:53:41,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:53:41,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 10:53:41,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:53:41,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 10:53:41,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:53:41,408 INFO L87 Difference]: Start difference. First operand 352 states and 423 transitions. Second operand has 15 states, 14 states have (on average 4.857142857142857) internal successors, (68), 15 states have internal predecessors, (68), 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 10:53:41,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:53:41,674 INFO L93 Difference]: Finished difference Result 370 states and 443 transitions. [2022-10-16 10:53:41,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:53:41,674 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.857142857142857) internal successors, (68), 15 states have internal predecessors, (68), 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 61 [2022-10-16 10:53:41,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:53:41,677 INFO L225 Difference]: With dead ends: 370 [2022-10-16 10:53:41,677 INFO L226 Difference]: Without dead ends: 369 [2022-10-16 10:53:41,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 118 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2022-10-16 10:53:41,678 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 141 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:53:41,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 88 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:53:41,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-10-16 10:53:41,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 351. [2022-10-16 10:53:41,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 344 states have (on average 1.2180232558139534) internal successors, (419), 350 states have internal predecessors, (419), 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 10:53:41,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 419 transitions. [2022-10-16 10:53:41,714 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 419 transitions. Word has length 61 [2022-10-16 10:53:41,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:53:41,714 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 419 transitions. [2022-10-16 10:53:41,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.857142857142857) internal successors, (68), 15 states have internal predecessors, (68), 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 10:53:41,715 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 419 transitions. [2022-10-16 10:53:41,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-16 10:53:41,716 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:53:41,716 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:53:41,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-10-16 10:53:41,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:41,930 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:53:41,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:53:41,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1574972464, now seen corresponding path program 7 times [2022-10-16 10:53:41,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:53:41,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577096716] [2022-10-16 10:53:41,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:41,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:53:41,955 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:53:41,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1569214682] [2022-10-16 10:53:41,956 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 10:53:41,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:41,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:53:41,957 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:53:41,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-10-16 10:53:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:53:42,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-16 10:53:42,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:53:42,232 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 15 proven. 22 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 10:53:42,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:53:42,398 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 15 proven. 22 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 10:53:42,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:53:42,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577096716] [2022-10-16 10:53:42,399 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:53:42,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569214682] [2022-10-16 10:53:42,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569214682] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:53:42,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:53:42,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 23 [2022-10-16 10:53:42,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621026343] [2022-10-16 10:53:42,400 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:53:42,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-16 10:53:42,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:53:42,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-16 10:53:42,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2022-10-16 10:53:42,405 INFO L87 Difference]: Start difference. First operand 351 states and 419 transitions. Second operand has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:53:42,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:53:42,885 INFO L93 Difference]: Finished difference Result 442 states and 530 transitions. [2022-10-16 10:53:42,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 10:53:42,886 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-16 10:53:42,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:53:42,887 INFO L225 Difference]: With dead ends: 442 [2022-10-16 10:53:42,887 INFO L226 Difference]: Without dead ends: 319 [2022-10-16 10:53:42,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 98 SyntacticMatches, 5 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=273, Invalid=1133, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 10:53:42,889 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 207 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:53:42,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 176 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:53:42,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-10-16 10:53:42,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 317. [2022-10-16 10:53:42,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 310 states have (on average 1.2193548387096773) internal successors, (378), 316 states have internal predecessors, (378), 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 10:53:42,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 378 transitions. [2022-10-16 10:53:42,918 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 378 transitions. Word has length 63 [2022-10-16 10:53:42,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:53:42,919 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 378 transitions. [2022-10-16 10:53:42,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:53:42,919 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 378 transitions. [2022-10-16 10:53:42,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 10:53:42,920 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:53:42,920 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:53:42,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-10-16 10:53:43,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:43,134 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:53:43,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:53:43,134 INFO L85 PathProgramCache]: Analyzing trace with hash 482497147, now seen corresponding path program 9 times [2022-10-16 10:53:43,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:53:43,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024465181] [2022-10-16 10:53:43,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:43,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:53:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:53:43,692 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 51 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:43,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:53:43,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024465181] [2022-10-16 10:53:43,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024465181] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:53:43,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521633670] [2022-10-16 10:53:43,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:53:43,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:43,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:53:43,701 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:53:43,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-10-16 10:53:43,844 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-10-16 10:53:43,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:53:43,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 10:53:43,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:53:44,277 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 80 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:44,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:53:44,736 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 80 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:44,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521633670] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:53:44,736 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:53:44,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 40 [2022-10-16 10:53:44,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065000601] [2022-10-16 10:53:44,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:53:44,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 10:53:44,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:53:44,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 10:53:44,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1337, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 10:53:44,739 INFO L87 Difference]: Start difference. First operand 317 states and 378 transitions. Second operand has 40 states, 40 states have (on average 2.875) internal successors, (115), 40 states have internal predecessors, (115), 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 10:53:45,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:53:45,869 INFO L93 Difference]: Finished difference Result 502 states and 598 transitions. [2022-10-16 10:53:45,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-10-16 10:53:45,870 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.875) internal successors, (115), 40 states have internal predecessors, (115), 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 65 [2022-10-16 10:53:45,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:53:45,872 INFO L225 Difference]: With dead ends: 502 [2022-10-16 10:53:45,873 INFO L226 Difference]: Without dead ends: 419 [2022-10-16 10:53:45,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 94 SyntacticMatches, 21 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1811 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=702, Invalid=3854, Unknown=0, NotChecked=0, Total=4556 [2022-10-16 10:53:45,875 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 272 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:53:45,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 465 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 10:53:45,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-10-16 10:53:45,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 354. [2022-10-16 10:53:45,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 347 states have (on average 1.1988472622478386) internal successors, (416), 353 states have internal predecessors, (416), 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 10:53:45,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 416 transitions. [2022-10-16 10:53:45,910 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 416 transitions. Word has length 65 [2022-10-16 10:53:45,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:53:45,910 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 416 transitions. [2022-10-16 10:53:45,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.875) internal successors, (115), 40 states have internal predecessors, (115), 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 10:53:45,911 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 416 transitions. [2022-10-16 10:53:45,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-16 10:53:45,912 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:53:45,912 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:53:45,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2022-10-16 10:53:46,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:46,126 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:53:46,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:53:46,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1153339649, now seen corresponding path program 10 times [2022-10-16 10:53:46,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:53:46,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076609627] [2022-10-16 10:53:46,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:46,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:53:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:53:47,572 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:47,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:53:47,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076609627] [2022-10-16 10:53:47,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076609627] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:53:47,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695782022] [2022-10-16 10:53:47,573 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:53:47,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:47,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:53:47,574 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:53:47,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-10-16 10:53:47,698 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:53:47,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:53:47,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 63 conjunts are in the unsatisfiable core [2022-10-16 10:53:47,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:53:47,759 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 10:53:47,817 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:53:47,817 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:53:47,889 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:53:47,889 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:53:47,999 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:53:48,000 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:53:48,112 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:53:48,112 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:53:48,227 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:53:48,227 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:53:48,354 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:48,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:53:48,509 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 16 treesize of output 14 [2022-10-16 10:53:48,511 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 20 treesize of output 16 [2022-10-16 10:53:48,579 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:53:48,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695782022] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:53:48,580 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:53:48,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26, 26] total 38 [2022-10-16 10:53:48,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273851148] [2022-10-16 10:53:48,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:53:48,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-16 10:53:48,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:53:48,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-16 10:53:48,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1300, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 10:53:48,589 INFO L87 Difference]: Start difference. First operand 354 states and 416 transitions. Second operand has 38 states, 38 states have (on average 2.8947368421052633) internal successors, (110), 38 states have internal predecessors, (110), 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 10:53:50,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:53:50,306 INFO L93 Difference]: Finished difference Result 538 states and 651 transitions. [2022-10-16 10:53:50,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-16 10:53:50,307 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.8947368421052633) internal successors, (110), 38 states have internal predecessors, (110), 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 69 [2022-10-16 10:53:50,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:53:50,309 INFO L225 Difference]: With dead ends: 538 [2022-10-16 10:53:50,309 INFO L226 Difference]: Without dead ends: 395 [2022-10-16 10:53:50,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 127 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=202, Invalid=2660, Unknown=0, NotChecked=0, Total=2862 [2022-10-16 10:53:50,312 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 111 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 2300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:53:50,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 976 Invalid, 2300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-16 10:53:50,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-10-16 10:53:50,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 368. [2022-10-16 10:53:50,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 361 states have (on average 1.1966759002770082) internal successors, (432), 367 states have internal predecessors, (432), 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 10:53:50,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 432 transitions. [2022-10-16 10:53:50,347 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 432 transitions. Word has length 69 [2022-10-16 10:53:50,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:53:50,347 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 432 transitions. [2022-10-16 10:53:50,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.8947368421052633) internal successors, (110), 38 states have internal predecessors, (110), 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 10:53:50,347 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 432 transitions. [2022-10-16 10:53:50,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-16 10:53:50,348 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:53:50,349 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:53:50,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2022-10-16 10:53:50,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-10-16 10:53:50,562 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:53:50,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:53:50,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1198011565, now seen corresponding path program 8 times [2022-10-16 10:53:50,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:53:50,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986683006] [2022-10-16 10:53:50,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:53:50,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:53:50,581 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:53:50,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1781949030] [2022-10-16 10:53:50,581 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:53:50,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:53:50,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:53:50,582 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:53:50,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-10-16 10:53:50,708 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:53:50,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:53:50,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 47 conjunts are in the unsatisfiable core [2022-10-16 10:53:50,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:53:50,716 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 10:53:50,879 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 37 treesize of output 17 [2022-10-16 10:53:50,990 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:53:50,990 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 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:53:51,072 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 10:53:51,153 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 10:53:51,243 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 10:53:51,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:53:51,334 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1289 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) is different from false [2022-10-16 10:53:51,348 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1289 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_#t~post11#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 5)) is different from false [2022-10-16 10:53:51,356 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1289 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:53:51,377 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1289 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 5)) is different from false [2022-10-16 10:53:51,397 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1286 Int) (v_ArrVal_1289 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1286)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 5)) is different from false [2022-10-16 10:53:51,424 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_229| Int)) (or (forall ((v_ArrVal_1286 Int) (v_ArrVal_1289 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_229| 4)) v_ArrVal_1286)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 5)) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_229|)))) is different from false [2022-10-16 10:53:51,447 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1286 Int) (v_ArrVal_1289 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_229| Int)) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_229| 4)) v_ArrVal_1286)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 5) (< |v_ULTIMATE.start_main_~i~0#1_229| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2022-10-16 10:53:53,467 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1286 Int) (v_ArrVal_1289 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_229| Int)) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ |c_ULTIMATE.start_main_#t~mem9#1| 4)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_229| 4)) v_ArrVal_1286)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 5) (< |v_ULTIMATE.start_main_~i~0#1_229| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2022-10-16 10:53:53,593 INFO L356 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-10-16 10:53:53,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 43 [2022-10-16 10:53:53,602 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:53:53,603 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 34 [2022-10-16 10:53:53,686 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 28 trivial. 46 not checked. [2022-10-16 10:53:53,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:53:53,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986683006] [2022-10-16 10:53:53,686 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:53:53,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781949030] [2022-10-16 10:53:53,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781949030] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:53:53,687 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:53:53,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 34 [2022-10-16 10:53:53,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205342084] [2022-10-16 10:53:53,687 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:53:53,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 10:53:53,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:53:53,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 10:53:53,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=571, Unknown=8, NotChecked=440, Total=1122 [2022-10-16 10:53:53,689 INFO L87 Difference]: Start difference. First operand 368 states and 432 transitions. Second operand has 34 states, 34 states have (on average 2.6470588235294117) internal successors, (90), 34 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:53:54,576 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((v_ArrVal_1286 Int) (v_ArrVal_1289 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_229| Int)) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_229| 4)) v_ArrVal_1286)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 5) (< |v_ULTIMATE.start_main_~i~0#1_229| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= 2 |c_ULTIMATE.start_main_~i~0#1|) (= 5 (select .cse0 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|))))) is different from false [2022-10-16 10:53:56,580 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (= (select .cse0 .cse1) 5) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= 2 |c_ULTIMATE.start_main_#t~post7#1|) (forall ((|v_ULTIMATE.start_main_~i~0#1_229| Int)) (or (forall ((v_ArrVal_1286 Int) (v_ArrVal_1289 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_229| 4)) v_ArrVal_1286)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 5)) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_229|)))))) is different from false [2022-10-16 10:53:57,371 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse2 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (forall ((v_ArrVal_1286 Int) (v_ArrVal_1289 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 .cse1 v_ArrVal_1286)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2) 5)) (= (select .cse0 .cse2) 5) (<= 3 |c_ULTIMATE.start_main_~i~0#1|) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((v_ArrVal_1286 Int) (v_ArrVal_1289 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_229| Int)) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse0 .cse1 (+ |c_ULTIMATE.start_main_#t~mem9#1| 4)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_229| 4)) v_ArrVal_1286)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2) 5) (< |v_ULTIMATE.start_main_~i~0#1_229| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))))) is different from false [2022-10-16 10:53:58,113 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (= (select .cse0 .cse1) 5) (forall ((v_ArrVal_1286 Int) (v_ArrVal_1289 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_229| Int)) (or (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_229| 4)) v_ArrVal_1286)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 5) (< |v_ULTIMATE.start_main_~i~0#1_229| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((v_ArrVal_1289 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 5)))) is different from false [2022-10-16 10:54:00,118 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (= (select .cse0 .cse1) 5) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((v_ArrVal_1289 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 5)) (forall ((|v_ULTIMATE.start_main_~i~0#1_229| Int)) (or (forall ((v_ArrVal_1286 Int) (v_ArrVal_1289 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_229| 4)) v_ArrVal_1286)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1289) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 5)) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_229|)))))) is different from false [2022-10-16 10:54:00,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:00,687 INFO L93 Difference]: Finished difference Result 528 states and 632 transitions. [2022-10-16 10:54:00,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-16 10:54:00,688 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.6470588235294117) internal successors, (90), 34 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-10-16 10:54:00,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:00,690 INFO L225 Difference]: With dead ends: 528 [2022-10-16 10:54:00,690 INFO L226 Difference]: Without dead ends: 477 [2022-10-16 10:54:00,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 106 SyntacticMatches, 10 SemanticMatches, 45 ConstructedPredicates, 13 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=170, Invalid=991, Unknown=13, NotChecked=988, Total=2162 [2022-10-16 10:54:00,691 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 115 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 718 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:00,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 436 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 775 Invalid, 0 Unknown, 718 Unchecked, 0.5s Time] [2022-10-16 10:54:00,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-10-16 10:54:00,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 402. [2022-10-16 10:54:00,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 395 states have (on average 1.1873417721518988) internal successors, (469), 401 states have internal predecessors, (469), 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 10:54:00,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 469 transitions. [2022-10-16 10:54:00,734 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 469 transitions. Word has length 70 [2022-10-16 10:54:00,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:00,734 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 469 transitions. [2022-10-16 10:54:00,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.6470588235294117) internal successors, (90), 34 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:54:00,734 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 469 transitions. [2022-10-16 10:54:00,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 10:54:00,735 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:00,735 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:00,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-10-16 10:54:00,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-10-16 10:54:00,950 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:00,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:00,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1968023236, now seen corresponding path program 9 times [2022-10-16 10:54:00,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:00,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827123608] [2022-10-16 10:54:00,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:00,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:00,969 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:54:00,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1484313456] [2022-10-16 10:54:00,970 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:54:00,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:00,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:54:00,971 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:54:00,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-10-16 10:54:01,188 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-10-16 10:54:01,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:54:01,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 72 conjunts are in the unsatisfiable core [2022-10-16 10:54:01,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:54:01,199 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 10:54:01,564 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 37 treesize of output 17 [2022-10-16 10:54:01,746 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 28 treesize of output 27 [2022-10-16 10:54:01,884 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 28 treesize of output 27 [2022-10-16 10:54:02,104 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 28 treesize of output 27 [2022-10-16 10:54:02,490 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 19 treesize of output 21 [2022-10-16 10:54:02,753 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 32 proven. 89 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:54:02,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:54:02,927 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1358 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1358) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) is different from false [2022-10-16 10:54:02,945 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1358 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1358) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 5)) is different from false [2022-10-16 10:54:04,788 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:54:04,788 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 71 treesize of output 70 [2022-10-16 10:54:04,805 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:54:04,805 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 34 [2022-10-16 10:54:05,289 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2022-10-16 10:54:05,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:05,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827123608] [2022-10-16 10:54:05,290 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:54:05,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484313456] [2022-10-16 10:54:05,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484313456] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:54:05,290 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:54:05,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 36] total 57 [2022-10-16 10:54:05,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103953691] [2022-10-16 10:54:05,291 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:54:05,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-10-16 10:54:05,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:05,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-10-16 10:54:05,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=2759, Unknown=3, NotChecked=214, Total=3192 [2022-10-16 10:54:05,313 INFO L87 Difference]: Start difference. First operand 402 states and 469 transitions. Second operand has 57 states, 57 states have (on average 2.0701754385964914) internal successors, (118), 57 states have internal predecessors, (118), 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 10:54:15,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:15,063 INFO L93 Difference]: Finished difference Result 457 states and 536 transitions. [2022-10-16 10:54:15,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-10-16 10:54:15,064 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 2.0701754385964914) internal successors, (118), 57 states have internal predecessors, (118), 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 74 [2022-10-16 10:54:15,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:15,066 INFO L225 Difference]: With dead ends: 457 [2022-10-16 10:54:15,067 INFO L226 Difference]: Without dead ends: 422 [2022-10-16 10:54:15,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 91 SyntacticMatches, 7 SemanticMatches, 92 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 1899 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=802, Invalid=7569, Unknown=9, NotChecked=362, Total=8742 [2022-10-16 10:54:15,068 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 120 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 1940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 917 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:15,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 609 Invalid, 1940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1001 Invalid, 0 Unknown, 917 Unchecked, 0.6s Time] [2022-10-16 10:54:15,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-10-16 10:54:15,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 395. [2022-10-16 10:54:15,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 388 states have (on average 1.190721649484536) internal successors, (462), 394 states have internal predecessors, (462), 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 10:54:15,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 462 transitions. [2022-10-16 10:54:15,108 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 462 transitions. Word has length 74 [2022-10-16 10:54:15,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:15,108 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 462 transitions. [2022-10-16 10:54:15,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 2.0701754385964914) internal successors, (118), 57 states have internal predecessors, (118), 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 10:54:15,109 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 462 transitions. [2022-10-16 10:54:15,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-16 10:54:15,110 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:15,110 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:15,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-10-16 10:54:15,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-10-16 10:54:15,324 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:15,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:15,325 INFO L85 PathProgramCache]: Analyzing trace with hash 445652671, now seen corresponding path program 11 times [2022-10-16 10:54:15,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:15,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465573587] [2022-10-16 10:54:15,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:15,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:16,158 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 81 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:16,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:16,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465573587] [2022-10-16 10:54:16,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465573587] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:54:16,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135858528] [2022-10-16 10:54:16,159 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 10:54:16,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:16,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:54:16,160 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:54:16,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-10-16 10:54:16,344 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-10-16 10:54:16,344 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:54:16,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 28 conjunts are in the unsatisfiable core [2022-10-16 10:54:16,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:54:17,055 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 117 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:17,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:54:17,861 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 117 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:54:17,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135858528] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:54:17,862 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:54:17,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 46 [2022-10-16 10:54:17,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801658196] [2022-10-16 10:54:17,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:54:17,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-10-16 10:54:17,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:17,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-10-16 10:54:17,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=1784, Unknown=0, NotChecked=0, Total=2070 [2022-10-16 10:54:17,864 INFO L87 Difference]: Start difference. First operand 395 states and 462 transitions. Second operand has 46 states, 46 states have (on average 2.891304347826087) internal successors, (133), 46 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 10:54:20,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:20,027 INFO L93 Difference]: Finished difference Result 612 states and 716 transitions. [2022-10-16 10:54:20,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-10-16 10:54:20,028 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 2.891304347826087) internal successors, (133), 46 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) Word has length 76 [2022-10-16 10:54:20,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:20,031 INFO L225 Difference]: With dead ends: 612 [2022-10-16 10:54:20,031 INFO L226 Difference]: Without dead ends: 529 [2022-10-16 10:54:20,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 110 SyntacticMatches, 25 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3154 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1265, Invalid=7107, Unknown=0, NotChecked=0, Total=8372 [2022-10-16 10:54:20,033 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 419 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:20,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 446 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 10:54:20,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-10-16 10:54:20,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 439. [2022-10-16 10:54:20,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 432 states have (on average 1.1759259259259258) internal successors, (508), 438 states have internal predecessors, (508), 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 10:54:20,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 508 transitions. [2022-10-16 10:54:20,078 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 508 transitions. Word has length 76 [2022-10-16 10:54:20,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:20,079 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 508 transitions. [2022-10-16 10:54:20,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 2.891304347826087) internal successors, (133), 46 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 10:54:20,079 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 508 transitions. [2022-10-16 10:54:20,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-16 10:54:20,080 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:20,080 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:20,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2022-10-16 10:54:20,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-10-16 10:54:20,294 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:20,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:20,296 INFO L85 PathProgramCache]: Analyzing trace with hash 952699344, now seen corresponding path program 10 times [2022-10-16 10:54:20,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:20,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026024161] [2022-10-16 10:54:20,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:20,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:20,315 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:54:20,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1183260378] [2022-10-16 10:54:20,316 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:54:20,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:20,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:54:20,317 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:54:20,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-10-16 10:54:20,492 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:54:20,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:54:20,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 46 conjunts are in the unsatisfiable core [2022-10-16 10:54:20,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:54:20,888 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2022-10-16 10:54:21,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:54:21,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 10:54:21,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:54:21,145 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 10:54:21,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:54:21,277 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 10:54:21,392 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-10-16 10:54:21,420 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 10:54:21,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:54:21,535 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1483 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1483) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 5)) is different from false [2022-10-16 10:54:21,549 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1483 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1483) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_#t~post11#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:54:21,558 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1483 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1483) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:54:21,576 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1483 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1483) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_#t~post11#1| 4) 12 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:54:21,583 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1483 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1483) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) 5)) is different from false [2022-10-16 10:54:21,598 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1483 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1483) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:54:21,616 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1483 (Array Int Int))) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ |c_ULTIMATE.start_main_#t~mem9#1| 4))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1483) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:54:21,688 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:54:21,689 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 31 [2022-10-16 10:54:21,695 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:54:21,696 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 34 [2022-10-16 10:54:22,051 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 28 trivial. 46 not checked. [2022-10-16 10:54:22,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:22,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026024161] [2022-10-16 10:54:22,052 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:54:22,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183260378] [2022-10-16 10:54:22,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183260378] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:54:22,053 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:54:22,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 41 [2022-10-16 10:54:22,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885251286] [2022-10-16 10:54:22,053 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:54:22,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-10-16 10:54:22,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:22,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-10-16 10:54:22,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=994, Unknown=7, NotChecked=490, Total=1640 [2022-10-16 10:54:22,055 INFO L87 Difference]: Start difference. First operand 439 states and 508 transitions. Second operand has 41 states, 41 states have (on average 3.024390243902439) internal successors, (124), 41 states have internal predecessors, (124), 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 10:54:23,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:54:23,755 INFO L93 Difference]: Finished difference Result 559 states and 645 transitions. [2022-10-16 10:54:23,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 10:54:23,755 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 3.024390243902439) internal successors, (124), 41 states have internal predecessors, (124), 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 77 [2022-10-16 10:54:23,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:54:23,758 INFO L225 Difference]: With dead ends: 559 [2022-10-16 10:54:23,758 INFO L226 Difference]: Without dead ends: 526 [2022-10-16 10:54:23,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 113 SyntacticMatches, 12 SemanticMatches, 48 ConstructedPredicates, 7 IntricatePredicates, 1 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=238, Invalid=1589, Unknown=7, NotChecked=616, Total=2450 [2022-10-16 10:54:23,759 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 214 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 764 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 10:54:23,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 739 Invalid, 2215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1411 Invalid, 0 Unknown, 764 Unchecked, 0.8s Time] [2022-10-16 10:54:23,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2022-10-16 10:54:23,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 484. [2022-10-16 10:54:23,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 477 states have (on average 1.1635220125786163) internal successors, (555), 483 states have internal predecessors, (555), 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 10:54:23,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 555 transitions. [2022-10-16 10:54:23,809 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 555 transitions. Word has length 77 [2022-10-16 10:54:23,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:54:23,809 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 555 transitions. [2022-10-16 10:54:23,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.024390243902439) internal successors, (124), 41 states have internal predecessors, (124), 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 10:54:23,810 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 555 transitions. [2022-10-16 10:54:23,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-16 10:54:23,811 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:54:23,811 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:54:23,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2022-10-16 10:54:24,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:24,026 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:54:24,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:54:24,027 INFO L85 PathProgramCache]: Analyzing trace with hash 952699152, now seen corresponding path program 2 times [2022-10-16 10:54:24,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:54:24,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459234303] [2022-10-16 10:54:24,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:54:24,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:54:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:54:24,915 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-16 10:54:24,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:54:24,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459234303] [2022-10-16 10:54:24,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459234303] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:54:24,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040547056] [2022-10-16 10:54:24,916 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:54:24,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:54:24,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:54:24,918 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:54:24,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-10-16 10:54:25,056 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:54:25,057 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:54:25,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 43 conjunts are in the unsatisfiable core [2022-10-16 10:54:25,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:54:25,065 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 11 treesize of output 7 [2022-10-16 10:54:25,069 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 10:54:25,091 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 14 treesize of output 16 [2022-10-16 10:54:25,108 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 14 treesize of output 16 [2022-10-16 10:54:25,126 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 14 treesize of output 16 [2022-10-16 10:54:25,146 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 14 treesize of output 16 [2022-10-16 10:54:25,180 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 14 treesize of output 16 [2022-10-16 10:54:25,208 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 14 treesize of output 16 [2022-10-16 10:54:25,240 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 14 treesize of output 16 [2022-10-16 10:54:25,276 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 14 treesize of output 16 [2022-10-16 10:54:25,423 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 0 case distinctions, treesize of input 47 treesize of output 30 [2022-10-16 10:54:25,682 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-10-16 10:54:25,683 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 46 [2022-10-16 10:54:26,065 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-10-16 10:54:26,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 61 [2022-10-16 10:54:26,476 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:54:26,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 98 [2022-10-16 10:54:26,574 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-10-16 10:54:26,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:54:45,848 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_289| Int) (|ULTIMATE.start_main_~i~0#1| Int) (|ULTIMATE.start_main_~a~0#1.offset| Int) (|v_ULTIMATE.start_main_~i~0#1_285| Int) (v_ArrVal_1553 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_287| Int) (v_ArrVal_1556 Int) (v_ArrVal_1555 Int) (v_ArrVal_1558 Int)) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_1553))) (let ((.cse4 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse0 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_1558)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_285| 4)))) (.cse2 (select v_ArrVal_1553 (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4)))) (.cse1 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_1555)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_289| 4)))) (.cse3 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_1556)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_287| 4))))) (or (< (+ v_ArrVal_1558 .cse0) 9223372036854775808) (< 5 .cse1) (< 5 .cse2) (< (+ .cse3 v_ArrVal_1556) v_ArrVal_1558) (< 5 .cse0) (< (+ .cse2 (select .cse4 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) v_ArrVal_1555) (< (+ .cse1 v_ArrVal_1555) v_ArrVal_1556) (< 5 .cse3)))))) is different from false [2022-10-16 10:54:50,312 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 61 trivial. 13 not checked. [2022-10-16 10:54:50,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040547056] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:54:50,313 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:54:50,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 14] total 39 [2022-10-16 10:54:50,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874474602] [2022-10-16 10:54:50,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:54:50,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 10:54:50,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:54:50,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 10:54:50,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=1177, Unknown=9, NotChecked=74, Total=1560 [2022-10-16 10:54:50,315 INFO L87 Difference]: Start difference. First operand 484 states and 555 transitions. Second operand has 40 states, 39 states have (on average 3.3846153846153846) internal successors, (132), 40 states have internal predecessors, (132), 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 10:55:12,372 WARN L233 SmtUtils]: Spent 5.22s on a formula simplification. DAG size of input: 49 DAG size of output: 41 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 10:55:24,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:24,389 INFO L93 Difference]: Finished difference Result 584 states and 683 transitions. [2022-10-16 10:55:24,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 10:55:24,391 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 3.3846153846153846) internal successors, (132), 40 states have internal predecessors, (132), 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 77 [2022-10-16 10:55:24,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:24,396 INFO L225 Difference]: With dead ends: 584 [2022-10-16 10:55:24,396 INFO L226 Difference]: Without dead ends: 583 [2022-10-16 10:55:24,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 138 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1059 ImplicationChecksByTransitivity, 52.8s TimeCoverageRelationStatistics Valid=617, Invalid=2338, Unknown=19, NotChecked=106, Total=3080 [2022-10-16 10:55:24,398 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 87 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 192 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:24,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 410 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 192 Unchecked, 0.0s Time] [2022-10-16 10:55:24,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2022-10-16 10:55:24,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 570. [2022-10-16 10:55:24,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 563 states have (on average 1.1758436944937833) internal successors, (662), 569 states have internal predecessors, (662), 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 10:55:24,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 662 transitions. [2022-10-16 10:55:24,463 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 662 transitions. Word has length 77 [2022-10-16 10:55:24,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:24,464 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 662 transitions. [2022-10-16 10:55:24,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 3.3846153846153846) internal successors, (132), 40 states have internal predecessors, (132), 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 10:55:24,464 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 662 transitions. [2022-10-16 10:55:24,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 10:55:24,465 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:24,466 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:55:24,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2022-10-16 10:55:24,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2022-10-16 10:55:24,680 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:24,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:24,680 INFO L85 PathProgramCache]: Analyzing trace with hash -917434056, now seen corresponding path program 11 times [2022-10-16 10:55:24,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:24,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681118578] [2022-10-16 10:55:24,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:24,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:24,699 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:55:24,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1960643192] [2022-10-16 10:55:24,699 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 10:55:24,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:24,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:24,701 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:55:24,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-10-16 10:55:24,959 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-10-16 10:55:24,959 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:55:24,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 10:55:24,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:25,388 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 45 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:55:25,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:55:26,075 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 45 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:55:26,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:55:26,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681118578] [2022-10-16 10:55:26,076 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:55:26,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960643192] [2022-10-16 10:55:26,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960643192] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:55:26,076 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:55:26,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 36 [2022-10-16 10:55:26,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870979379] [2022-10-16 10:55:26,077 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:55:26,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 10:55:26,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:26,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 10:55:26,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1069, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 10:55:26,078 INFO L87 Difference]: Start difference. First operand 570 states and 662 transitions. Second operand has 36 states, 36 states have (on average 3.1666666666666665) internal successors, (114), 36 states have internal predecessors, (114), 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 10:55:27,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:27,242 INFO L93 Difference]: Finished difference Result 786 states and 929 transitions. [2022-10-16 10:55:27,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-16 10:55:27,243 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.1666666666666665) internal successors, (114), 36 states have internal predecessors, (114), 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 78 [2022-10-16 10:55:27,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:27,247 INFO L225 Difference]: With dead ends: 786 [2022-10-16 10:55:27,247 INFO L226 Difference]: Without dead ends: 577 [2022-10-16 10:55:27,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 108 SyntacticMatches, 12 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1096 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=486, Invalid=2594, Unknown=0, NotChecked=0, Total=3080 [2022-10-16 10:55:27,249 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 201 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:27,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 537 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 10:55:27,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-10-16 10:55:27,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 519. [2022-10-16 10:55:27,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 512 states have (on average 1.171875) internal successors, (600), 518 states have internal predecessors, (600), 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 10:55:27,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 600 transitions. [2022-10-16 10:55:27,310 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 600 transitions. Word has length 78 [2022-10-16 10:55:27,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:27,310 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 600 transitions. [2022-10-16 10:55:27,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.1666666666666665) internal successors, (114), 36 states have internal predecessors, (114), 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 10:55:27,310 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 600 transitions. [2022-10-16 10:55:27,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 10:55:27,312 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:27,312 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:55:27,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2022-10-16 10:55:27,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:27,525 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:27,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:27,526 INFO L85 PathProgramCache]: Analyzing trace with hash 744540091, now seen corresponding path program 12 times [2022-10-16 10:55:27,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:27,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470670243] [2022-10-16 10:55:27,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:27,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:55:29,395 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 208 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:29,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:55:29,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470670243] [2022-10-16 10:55:29,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470670243] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:55:29,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572743018] [2022-10-16 10:55:29,396 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 10:55:29,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:29,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:29,397 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:55:29,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2022-10-16 10:55:29,793 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2022-10-16 10:55:29,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:55:29,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 73 conjunts are in the unsatisfiable core [2022-10-16 10:55:29,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:29,888 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 10:55:29,970 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:29,970 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:30,057 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:30,058 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:30,191 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:30,191 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:30,336 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:30,337 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:30,489 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:30,489 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:30,643 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:30,644 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:30,836 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 208 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:30,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:55:31,050 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 16 treesize of output 14 [2022-10-16 10:55:31,052 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 20 treesize of output 16 [2022-10-16 10:55:31,146 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 208 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:55:31,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572743018] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:55:31,147 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:55:31,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30, 30] total 44 [2022-10-16 10:55:31,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533280096] [2022-10-16 10:55:31,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:55:31,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-10-16 10:55:31,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:31,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-10-16 10:55:31,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1769, Unknown=0, NotChecked=0, Total=1892 [2022-10-16 10:55:31,149 INFO L87 Difference]: Start difference. First operand 519 states and 600 transitions. Second operand has 44 states, 44 states have (on average 2.909090909090909) internal successors, (128), 44 states have internal predecessors, (128), 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 10:55:33,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:33,798 INFO L93 Difference]: Finished difference Result 698 states and 830 transitions. [2022-10-16 10:55:33,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-10-16 10:55:33,799 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 2.909090909090909) internal successors, (128), 44 states have internal predecessors, (128), 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 80 [2022-10-16 10:55:33,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:33,801 INFO L225 Difference]: With dead ends: 698 [2022-10-16 10:55:33,801 INFO L226 Difference]: Without dead ends: 555 [2022-10-16 10:55:33,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 148 SyntacticMatches, 5 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=237, Invalid=3669, Unknown=0, NotChecked=0, Total=3906 [2022-10-16 10:55:33,803 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 119 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 3297 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 3337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 3297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:33,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1266 Invalid, 3337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 3297 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-10-16 10:55:33,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-10-16 10:55:33,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 533. [2022-10-16 10:55:33,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 526 states have (on average 1.1711026615969582) internal successors, (616), 532 states have internal predecessors, (616), 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 10:55:33,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 616 transitions. [2022-10-16 10:55:33,850 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 616 transitions. Word has length 80 [2022-10-16 10:55:33,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:33,851 INFO L495 AbstractCegarLoop]: Abstraction has 533 states and 616 transitions. [2022-10-16 10:55:33,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.909090909090909) internal successors, (128), 44 states have internal predecessors, (128), 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 10:55:33,851 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 616 transitions. [2022-10-16 10:55:33,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-16 10:55:33,852 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:33,852 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:55:33,888 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2022-10-16 10:55:34,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:34,067 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:34,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:34,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1987594419, now seen corresponding path program 12 times [2022-10-16 10:55:34,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:34,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169360204] [2022-10-16 10:55:34,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:34,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:34,086 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:55:34,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [569148173] [2022-10-16 10:55:34,087 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 10:55:34,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:34,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:34,088 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:55:34,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-10-16 10:55:34,364 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-10-16 10:55:34,364 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:55:34,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-16 10:55:34,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:34,704 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 50 proven. 46 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 10:55:34,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:55:35,393 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 50 proven. 46 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 10:55:35,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:55:35,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169360204] [2022-10-16 10:55:35,394 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:55:35,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569148173] [2022-10-16 10:55:35,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569148173] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:55:35,394 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:55:35,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 30 [2022-10-16 10:55:35,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911839943] [2022-10-16 10:55:35,394 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:55:35,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-10-16 10:55:35,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:35,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-10-16 10:55:35,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=731, Unknown=0, NotChecked=0, Total=870 [2022-10-16 10:55:35,396 INFO L87 Difference]: Start difference. First operand 533 states and 616 transitions. Second operand has 30 states, 30 states have (on average 3.4) internal successors, (102), 30 states have internal predecessors, (102), 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 10:55:36,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:55:36,063 INFO L93 Difference]: Finished difference Result 570 states and 657 transitions. [2022-10-16 10:55:36,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 10:55:36,065 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.4) internal successors, (102), 30 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-10-16 10:55:36,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:55:36,067 INFO L225 Difference]: With dead ends: 570 [2022-10-16 10:55:36,067 INFO L226 Difference]: Without dead ends: 481 [2022-10-16 10:55:36,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 128 SyntacticMatches, 10 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=305, Invalid=1501, Unknown=0, NotChecked=0, Total=1806 [2022-10-16 10:55:36,068 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 132 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:55:36,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 266 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:55:36,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-10-16 10:55:36,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 479. [2022-10-16 10:55:36,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 472 states have (on average 1.1864406779661016) internal successors, (560), 478 states have internal predecessors, (560), 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 10:55:36,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 560 transitions. [2022-10-16 10:55:36,119 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 560 transitions. Word has length 84 [2022-10-16 10:55:36,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:55:36,119 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 560 transitions. [2022-10-16 10:55:36,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.4) internal successors, (102), 30 states have internal predecessors, (102), 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 10:55:36,120 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 560 transitions. [2022-10-16 10:55:36,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-10-16 10:55:36,120 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:55:36,121 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:55:36,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2022-10-16 10:55:36,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-10-16 10:55:36,334 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:55:36,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:55:36,335 INFO L85 PathProgramCache]: Analyzing trace with hash 757864824, now seen corresponding path program 13 times [2022-10-16 10:55:36,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:55:36,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145106802] [2022-10-16 10:55:36,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:55:36,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:55:36,352 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:55:36,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1100395482] [2022-10-16 10:55:36,353 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 10:55:36,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:55:36,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:55:36,354 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:55:36,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2022-10-16 10:55:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:55:36,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 48 conjunts are in the unsatisfiable core [2022-10-16 10:55:36,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:55:36,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 10:55:36,642 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 37 treesize of output 17 [2022-10-16 10:55:36,761 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:36,761 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 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:36,872 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:36,873 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 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:36,985 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:36,986 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 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:37,102 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:55:37,102 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 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:55:37,204 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 10:55:37,296 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-10-16 10:55:37,316 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 39 proven. 74 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-16 10:55:37,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:55:37,419 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1842 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) is different from false [2022-10-16 10:55:37,434 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1842 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) is different from false [2022-10-16 10:55:37,457 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) is different from false [2022-10-16 10:55:37,512 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_344|)) (forall ((v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 5)))) is different from false [2022-10-16 10:55:37,545 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 5))) is different from false [2022-10-16 10:55:37,565 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))))) is different from false [2022-10-16 10:55:37,632 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_345| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_345|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)))))) is different from false [2022-10-16 10:55:37,683 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)))) is different from false [2022-10-16 10:55:37,712 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)))) is different from false [2022-10-16 10:55:37,812 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_346| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_346|)) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))))) is different from false [2022-10-16 10:55:37,880 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))) is different from false [2022-10-16 10:55:37,917 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))) is different from false [2022-10-16 10:55:38,038 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_347| Int)) (or (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)))) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_347|)))) is different from false [2022-10-16 10:55:38,115 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_347| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_347| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)))) is different from false [2022-10-16 10:55:38,154 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_347| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ |c_ULTIMATE.start_main_#t~mem9#1| 4)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_347| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)))) is different from false [2022-10-16 10:55:38,436 INFO L356 Elim1Store]: treesize reduction 364, result has 14.8 percent of original size [2022-10-16 10:55:38,437 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 79 [2022-10-16 10:55:38,445 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:55:38,445 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 34 [2022-10-16 10:55:38,523 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 111 not checked. [2022-10-16 10:55:38,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:55:38,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145106802] [2022-10-16 10:55:38,524 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:55:38,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100395482] [2022-10-16 10:55:38,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100395482] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:55:38,524 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:55:38,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 26] total 42 [2022-10-16 10:55:38,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416402931] [2022-10-16 10:55:38,525 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:55:38,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-10-16 10:55:38,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:55:38,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-10-16 10:55:38,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=611, Unknown=15, NotChecked=960, Total=1722 [2022-10-16 10:55:38,527 INFO L87 Difference]: Start difference. First operand 479 states and 560 transitions. Second operand has 42 states, 42 states have (on average 2.619047619047619) internal successors, (110), 42 states have internal predecessors, (110), 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 10:55:39,898 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_347| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_347| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= 5 (select .cse0 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|))) (= |c_ULTIMATE.start_main_~i~0#1| 1))) is different from false [2022-10-16 10:55:41,905 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (= 5 (select .cse0 .cse1)) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= 1 |c_ULTIMATE.start_main_#t~post7#1|) (forall ((|v_ULTIMATE.start_main_~i~0#1_347| Int)) (or (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)))) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_347|)))))) is different from false [2022-10-16 10:55:43,915 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (= 5 (select .cse0 .cse1)) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse0 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))) (<= 2 |c_ULTIMATE.start_main_~i~0#1|))) is different from false [2022-10-16 10:55:45,925 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))) (= 5 (select .cse0 .cse1)) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= 2 |c_ULTIMATE.start_main_~i~0#1|))) is different from false [2022-10-16 10:55:47,931 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (= 5 (select .cse0 .cse1)) (forall ((|v_ULTIMATE.start_main_~i~0#1_346| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_346|)) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= 2 |c_ULTIMATE.start_main_#t~post7#1|))) is different from false [2022-10-16 10:55:49,996 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse3 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (and (= 5 (select .cse0 .cse1)) (<= 3 |c_ULTIMATE.start_main_~i~0#1|) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_347| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store (store .cse0 .cse2 (+ |c_ULTIMATE.start_main_#t~mem9#1| 4)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_347| .cse3) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)))) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse0 .cse2 v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_345| .cse3) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)))))) is different from false [2022-10-16 10:55:52,009 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (= 5 (select .cse0 .cse1)) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_347| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_347| .cse2) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)))) (<= 3 |c_ULTIMATE.start_main_~i~0#1|) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_345| .cse2) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)))))) is different from false [2022-10-16 10:55:54,017 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse2 (+ |c_ULTIMATE.start_main_#t~post7#1| 1))) (and (= 5 (select .cse0 .cse1)) (<= 3 |c_ULTIMATE.start_main_#t~post7#1|) (forall ((|v_ULTIMATE.start_main_~i~0#1_345| Int)) (or (not (<= .cse2 |v_ULTIMATE.start_main_~i~0#1_345|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)))))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_347| Int)) (or (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)))) (not (<= .cse2 |v_ULTIMATE.start_main_~i~0#1_347|)))))) is different from false [2022-10-16 10:55:56,025 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse0 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_344| .cse0) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse1 .cse2 v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3)))) (= 5 (select .cse1 .cse3)) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse1 .cse2 v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3)) (< |v_ULTIMATE.start_main_~i~0#1_346| .cse0) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))) (<= 4 |c_ULTIMATE.start_main_~i~0#1|))) is different from false [2022-10-16 10:55:58,041 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_346| .cse0) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))) (= 5 (select .cse1 .cse2)) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_344| .cse0) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2) 5))) (<= 4 |c_ULTIMATE.start_main_~i~0#1|))) is different from false [2022-10-16 10:56:00,049 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_#t~post7#1| 1)) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (<= 4 |c_ULTIMATE.start_main_#t~post7#1|) (= 5 (select .cse0 .cse1)) (forall ((|v_ULTIMATE.start_main_~i~0#1_346| Int)) (or (not (<= .cse2 |v_ULTIMATE.start_main_~i~0#1_346|)) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int)) (or (not (<= .cse2 |v_ULTIMATE.start_main_~i~0#1_344|)) (forall ((v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 5)))))) is different from false [2022-10-16 10:56:02,176 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (= 5 (select .cse0 .cse1)) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= 5 |c_ULTIMATE.start_main_~i~0#1|) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_347| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store (store .cse0 .cse2 (+ |c_ULTIMATE.start_main_#t~mem9#1| 4)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_347| .cse3) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)))) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse0 .cse2 v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_345| .cse3) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)))) (forall ((v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 .cse2 v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))))) is different from false [2022-10-16 10:56:04,221 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (= 5 (select .cse0 .cse1)) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_347| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_347| .cse2) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_345| .cse2) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)))) (forall ((v_ArrVal_1842 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (<= 4 |c_ULTIMATE.start_main_~i~0#1|))) is different from false [2022-10-16 10:56:06,243 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse2 (+ |c_ULTIMATE.start_main_#t~post7#1| 1))) (and (<= 4 |c_ULTIMATE.start_main_#t~post7#1|) (= 5 (select .cse0 .cse1)) (forall ((|v_ULTIMATE.start_main_~i~0#1_345| Int)) (or (not (<= .cse2 |v_ULTIMATE.start_main_~i~0#1_345|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)))))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((v_ArrVal_1842 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (forall ((|v_ULTIMATE.start_main_~i~0#1_347| Int)) (or (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_347| 4)) v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)) (< |v_ULTIMATE.start_main_~i~0#1_346| (+ |v_ULTIMATE.start_main_~i~0#1_347| 1)))) (not (<= .cse2 |v_ULTIMATE.start_main_~i~0#1_347|)))))) is different from false [2022-10-16 10:56:08,312 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse0 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_344| .cse0) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse1 .cse2 v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3)))) (= 5 (select .cse1 .cse3)) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse1 .cse2 v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3)) (< |v_ULTIMATE.start_main_~i~0#1_346| .cse0) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))) (<= 5 |c_ULTIMATE.start_main_~i~0#1|) (forall ((v_ArrVal_1842 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))))) is different from false [2022-10-16 10:56:10,386 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse0 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_344| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_344| .cse0) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse1 .cse2 v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3)))) (= 5 (select .cse1 .cse3)) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((v_ArrVal_1837 Int) (|v_ULTIMATE.start_main_~i~0#1_345| Int) (|v_ULTIMATE.start_main_~i~0#1_344| Int) (|v_ULTIMATE.start_main_~i~0#1_346| Int) (v_ArrVal_1838 Int) (v_ArrVal_1842 (Array Int Int)) (v_ArrVal_1840 Int) (v_ArrVal_1835 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse1 .cse2 v_ArrVal_1835) (+ (* |v_ULTIMATE.start_main_~i~0#1_346| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1837) (+ (* |v_ULTIMATE.start_main_~i~0#1_345| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1838) (+ (* |v_ULTIMATE.start_main_~i~0#1_344| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1840)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3)) (< |v_ULTIMATE.start_main_~i~0#1_346| .cse0) (< |v_ULTIMATE.start_main_~i~0#1_344| (+ |v_ULTIMATE.start_main_~i~0#1_345| 1)) (< |v_ULTIMATE.start_main_~i~0#1_345| (+ |v_ULTIMATE.start_main_~i~0#1_346| 1)))) (<= 5 |c_ULTIMATE.start_main_~i~0#1|))) is different from false [2022-10-16 10:56:10,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:56:10,582 INFO L93 Difference]: Finished difference Result 728 states and 887 transitions. [2022-10-16 10:56:10,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-16 10:56:10,582 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 2.619047619047619) internal successors, (110), 42 states have internal predecessors, (110), 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 85 [2022-10-16 10:56:10,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:56:10,585 INFO L225 Difference]: With dead ends: 728 [2022-10-16 10:56:10,585 INFO L226 Difference]: Without dead ends: 659 [2022-10-16 10:56:10,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 131 SyntacticMatches, 9 SemanticMatches, 60 ConstructedPredicates, 31 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 32.2s TimeCoverageRelationStatistics Valid=205, Invalid=818, Unknown=31, NotChecked=2728, Total=3782 [2022-10-16 10:56:10,586 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 113 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 1914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1254 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:56:10,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 602 Invalid, 1914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 628 Invalid, 0 Unknown, 1254 Unchecked, 0.5s Time] [2022-10-16 10:56:10,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2022-10-16 10:56:10,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 559. [2022-10-16 10:56:10,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 552 states have (on average 1.1956521739130435) internal successors, (660), 558 states have internal predecessors, (660), 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 10:56:10,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 660 transitions. [2022-10-16 10:56:10,646 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 660 transitions. Word has length 85 [2022-10-16 10:56:10,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:56:10,647 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 660 transitions. [2022-10-16 10:56:10,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.619047619047619) internal successors, (110), 42 states have internal predecessors, (110), 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 10:56:10,647 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 660 transitions. [2022-10-16 10:56:10,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-10-16 10:56:10,648 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:56:10,648 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:56:10,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2022-10-16 10:56:10,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-10-16 10:56:10,862 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:56:10,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:56:10,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1453671805, now seen corresponding path program 13 times [2022-10-16 10:56:10,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:56:10,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604151027] [2022-10-16 10:56:10,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:56:10,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:56:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:56:12,517 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 118 proven. 134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:56:12,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:56:12,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604151027] [2022-10-16 10:56:12,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604151027] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:56:12,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288956275] [2022-10-16 10:56:12,519 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 10:56:12,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:56:12,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:56:12,520 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:56:12,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2022-10-16 10:56:12,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:56:12,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 10:56:12,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:56:13,847 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 161 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:56:13,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:56:15,490 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 161 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:56:15,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288956275] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:56:15,491 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:56:15,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 52 [2022-10-16 10:56:15,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558727559] [2022-10-16 10:56:15,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:56:15,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-10-16 10:56:15,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:56:15,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-10-16 10:56:15,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=2295, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 10:56:15,494 INFO L87 Difference]: Start difference. First operand 559 states and 660 transitions. Second operand has 52 states, 52 states have (on average 2.9038461538461537) internal successors, (151), 52 states have internal predecessors, (151), 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 10:56:19,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:56:19,685 INFO L93 Difference]: Finished difference Result 851 states and 1006 transitions. [2022-10-16 10:56:19,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-10-16 10:56:19,687 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.9038461538461537) internal successors, (151), 52 states have internal predecessors, (151), 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 87 [2022-10-16 10:56:19,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:56:19,689 INFO L225 Difference]: With dead ends: 851 [2022-10-16 10:56:19,689 INFO L226 Difference]: Without dead ends: 685 [2022-10-16 10:56:19,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 126 SyntacticMatches, 29 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4281 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=1715, Invalid=9627, Unknown=0, NotChecked=0, Total=11342 [2022-10-16 10:56:19,699 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 387 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 10:56:19,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 569 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 10:56:19,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2022-10-16 10:56:19,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 603. [2022-10-16 10:56:19,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 596 states have (on average 1.1828859060402686) internal successors, (705), 602 states have internal predecessors, (705), 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 10:56:19,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 705 transitions. [2022-10-16 10:56:19,761 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 705 transitions. Word has length 87 [2022-10-16 10:56:19,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:56:19,762 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 705 transitions. [2022-10-16 10:56:19,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.9038461538461537) internal successors, (151), 52 states have internal predecessors, (151), 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 10:56:19,762 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 705 transitions. [2022-10-16 10:56:19,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-16 10:56:19,763 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:56:19,763 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:56:19,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2022-10-16 10:56:19,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2022-10-16 10:56:19,965 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:56:19,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:56:19,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1339241884, now seen corresponding path program 14 times [2022-10-16 10:56:19,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:56:19,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286400401] [2022-10-16 10:56:19,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:56:19,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:56:19,984 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:56:19,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [806496751] [2022-10-16 10:56:19,984 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:56:19,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:56:19,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:56:19,986 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:56:19,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2022-10-16 10:56:20,142 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:56:20,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:56:20,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 54 conjunts are in the unsatisfiable core [2022-10-16 10:56:20,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:56:20,151 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 10:56:20,384 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 37 treesize of output 17 [2022-10-16 10:56:20,518 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:56:20,519 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 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:56:20,610 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 10:56:20,719 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 10:56:20,829 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 10:56:20,948 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 10:56:20,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:56:21,061 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) is different from false [2022-10-16 10:56:21,082 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_#t~post11#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 5)) is different from false [2022-10-16 10:56:21,092 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:56:21,111 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_#t~post11#1| 4) 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) 5)) is different from false [2022-10-16 10:56:21,122 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) 12 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:56:21,143 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) 5)) is different from false [2022-10-16 10:56:21,166 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array Int Int)) (v_ArrVal_1983 Int)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1983)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)))) is different from false [2022-10-16 10:56:21,202 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_378| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_378|)) (forall ((v_ArrVal_1986 (Array Int Int)) (v_ArrVal_1983 Int)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_378| 4)) v_ArrVal_1983)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) is different from false [2022-10-16 10:56:21,238 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_378| Int) (v_ArrVal_1986 (Array Int Int)) (v_ArrVal_1983 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_378| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_378| 4)) v_ArrVal_1983)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|))))) is different from false [2022-10-16 10:56:23,262 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_378| Int) (v_ArrVal_1986 (Array Int Int)) (v_ArrVal_1983 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ |c_ULTIMATE.start_main_#t~mem9#1| 4)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_378| 4)) v_ArrVal_1983)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|))) (< |v_ULTIMATE.start_main_~i~0#1_378| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2022-10-16 10:56:23,398 INFO L356 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-10-16 10:56:23,399 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 43 [2022-10-16 10:56:23,409 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:56:23,409 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 34 [2022-10-16 10:56:23,537 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 45 trivial. 75 not checked. [2022-10-16 10:56:23,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:56:23,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286400401] [2022-10-16 10:56:23,537 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:56:23,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806496751] [2022-10-16 10:56:23,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806496751] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:56:23,538 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:56:23,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 40 [2022-10-16 10:56:23,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298300599] [2022-10-16 10:56:23,538 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:56:23,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 10:56:23,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:56:23,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 10:56:23,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=778, Unknown=10, NotChecked=650, Total=1560 [2022-10-16 10:56:23,540 INFO L87 Difference]: Start difference. First operand 603 states and 705 transitions. Second operand has 40 states, 40 states have (on average 2.775) internal successors, (111), 40 states have internal predecessors, (111), 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 10:56:24,726 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_378| Int) (v_ArrVal_1986 (Array Int Int)) (v_ArrVal_1983 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_378| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_378| 4)) v_ArrVal_1983)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|))))) (= 5 (select .cse0 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|))) (= 3 |c_ULTIMATE.start_main_~i~0#1|))) is different from false [2022-10-16 10:56:26,731 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (<= 3 |c_ULTIMATE.start_main_#t~post7#1|) (forall ((|v_ULTIMATE.start_main_~i~0#1_378| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_378|)) (forall ((v_ArrVal_1986 (Array Int Int)) (v_ArrVal_1983 Int)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_378| 4)) v_ArrVal_1983)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= 5 (select .cse0 .cse1)))) is different from false [2022-10-16 10:56:27,621 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse2 (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((v_ArrVal_1986 (Array Int Int)) (v_ArrVal_1983 Int)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 .cse1 v_ArrVal_1983)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (= 5 (select .cse0 .cse2)) (forall ((|v_ULTIMATE.start_main_~i~0#1_378| Int) (v_ArrVal_1986 (Array Int Int)) (v_ArrVal_1983 Int)) (or (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse0 .cse1 (+ |c_ULTIMATE.start_main_#t~mem9#1| 4)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_378| 4)) v_ArrVal_1983)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2)) (< |v_ULTIMATE.start_main_~i~0#1_378| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (<= 4 |c_ULTIMATE.start_main_~i~0#1|))) is different from false [2022-10-16 10:56:28,386 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_378| Int) (v_ArrVal_1986 (Array Int Int)) (v_ArrVal_1983 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_378| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_378| 4)) v_ArrVal_1983)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)))) (= 5 (select .cse0 .cse1)) (forall ((v_ArrVal_1986 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 5)))) is different from false [2022-10-16 10:56:30,390 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_378| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_378|)) (forall ((v_ArrVal_1986 (Array Int Int)) (v_ArrVal_1983 Int)) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_378| 4)) v_ArrVal_1983)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= 5 (select .cse0 .cse1)) (forall ((v_ArrVal_1986 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 5)))) is different from false [2022-10-16 10:56:31,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:56:31,265 INFO L93 Difference]: Finished difference Result 737 states and 862 transitions. [2022-10-16 10:56:31,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-10-16 10:56:31,266 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.775) internal successors, (111), 40 states have internal predecessors, (111), 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 88 [2022-10-16 10:56:31,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:56:31,270 INFO L225 Difference]: With dead ends: 737 [2022-10-16 10:56:31,270 INFO L226 Difference]: Without dead ends: 704 [2022-10-16 10:56:31,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 136 SyntacticMatches, 12 SemanticMatches, 53 ConstructedPredicates, 15 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=203, Invalid=1402, Unknown=15, NotChecked=1350, Total=2970 [2022-10-16 10:56:31,273 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 109 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 2229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1048 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 10:56:31,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 643 Invalid, 2229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1151 Invalid, 0 Unknown, 1048 Unchecked, 0.7s Time] [2022-10-16 10:56:31,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2022-10-16 10:56:31,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 658. [2022-10-16 10:56:31,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 651 states have (on average 1.1735791090629801) internal successors, (764), 657 states have internal predecessors, (764), 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 10:56:31,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 764 transitions. [2022-10-16 10:56:31,351 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 764 transitions. Word has length 88 [2022-10-16 10:56:31,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:56:31,351 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 764 transitions. [2022-10-16 10:56:31,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.775) internal successors, (111), 40 states have internal predecessors, (111), 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 10:56:31,351 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 764 transitions. [2022-10-16 10:56:31,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-16 10:56:31,353 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:56:31,353 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:56:31,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2022-10-16 10:56:31,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2022-10-16 10:56:31,561 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:56:31,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:56:31,561 INFO L85 PathProgramCache]: Analyzing trace with hash 2096094215, now seen corresponding path program 14 times [2022-10-16 10:56:31,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:56:31,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624221635] [2022-10-16 10:56:31,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:56:31,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:56:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:56:33,906 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 281 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:56:33,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:56:33,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624221635] [2022-10-16 10:56:33,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624221635] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:56:33,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771587794] [2022-10-16 10:56:33,907 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:56:33,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:56:33,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:56:33,908 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:56:33,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2022-10-16 10:56:34,068 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:56:34,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:56:34,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 83 conjunts are in the unsatisfiable core [2022-10-16 10:56:34,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:56:34,175 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 10:56:34,267 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:56:34,267 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:56:34,367 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:56:34,368 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:56:34,521 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:56:34,521 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:56:34,685 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:56:34,685 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:56:34,851 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:56:34,852 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:56:35,019 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:56:35,020 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:56:35,187 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:56:35,188 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:56:35,402 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 281 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:56:35,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:56:35,655 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 16 treesize of output 14 [2022-10-16 10:56:35,657 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 20 treesize of output 16 [2022-10-16 10:56:35,772 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 281 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:56:35,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771587794] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:56:35,772 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:56:35,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 34, 34] total 50 [2022-10-16 10:56:35,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111400497] [2022-10-16 10:56:35,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:56:35,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-10-16 10:56:35,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:56:35,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-10-16 10:56:35,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=2310, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 10:56:35,775 INFO L87 Difference]: Start difference. First operand 658 states and 764 transitions. Second operand has 50 states, 50 states have (on average 2.92) internal successors, (146), 50 states have internal predecessors, (146), 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 10:56:39,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:56:39,121 INFO L93 Difference]: Finished difference Result 908 states and 1083 transitions. [2022-10-16 10:56:39,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-10-16 10:56:39,122 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.92) internal successors, (146), 50 states have internal predecessors, (146), 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 91 [2022-10-16 10:56:39,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:56:39,125 INFO L225 Difference]: With dead ends: 908 [2022-10-16 10:56:39,125 INFO L226 Difference]: Without dead ends: 699 [2022-10-16 10:56:39,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 169 SyntacticMatches, 5 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=272, Invalid=4840, Unknown=0, NotChecked=0, Total=5112 [2022-10-16 10:56:39,127 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 143 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 3889 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 3935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 3889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:56:39,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1412 Invalid, 3935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 3889 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-10-16 10:56:39,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-10-16 10:56:39,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 672. [2022-10-16 10:56:39,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 665 states have (on average 1.1729323308270676) internal successors, (780), 671 states have internal predecessors, (780), 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 10:56:39,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 780 transitions. [2022-10-16 10:56:39,213 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 780 transitions. Word has length 91 [2022-10-16 10:56:39,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:56:39,214 INFO L495 AbstractCegarLoop]: Abstraction has 672 states and 780 transitions. [2022-10-16 10:56:39,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.92) internal successors, (146), 50 states have internal predecessors, (146), 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 10:56:39,214 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 780 transitions. [2022-10-16 10:56:39,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-10-16 10:56:39,215 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:56:39,216 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:56:39,252 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2022-10-16 10:56:39,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:56:39,429 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:56:39,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:56:39,430 INFO L85 PathProgramCache]: Analyzing trace with hash -852804955, now seen corresponding path program 15 times [2022-10-16 10:56:39,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:56:39,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884781324] [2022-10-16 10:56:39,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:56:39,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:56:39,448 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:56:39,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [930569045] [2022-10-16 10:56:39,449 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:56:39,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:56:39,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:56:39,450 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:56:39,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2022-10-16 10:56:39,878 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-10-16 10:56:39,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:56:39,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 51 conjunts are in the unsatisfiable core [2022-10-16 10:56:39,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:56:40,605 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 17 [2022-10-16 10:56:40,851 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:56:40,852 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:56:41,001 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:56:41,001 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:56:41,197 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:56:41,197 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:56:41,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:56:41,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18