./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b0a853f0131530f88013a3fcfdf4f133f41c0569 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 10:53:56,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 10:53:56,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 10:53:56,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 10:53:56,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 10:53:56,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 10:53:56,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 10:53:56,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 10:53:56,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 10:53:56,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 10:53:56,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 10:53:56,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 10:53:56,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 10:53:56,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 10:53:56,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 10:53:56,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 10:53:56,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 10:53:56,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 10:53:56,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 10:53:56,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 10:53:56,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 10:53:56,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 10:53:56,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 10:53:56,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 10:53:56,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 10:53:56,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 10:53:56,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 10:53:56,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 10:53:56,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 10:53:56,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 10:53:56,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 10:53:56,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 10:53:56,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 10:53:56,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 10:53:56,749 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 10:53:56,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 10:53:56,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 10:53:56,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 10:53:56,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 10:53:56,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 10:53:56,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 10:53:56,755 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-08-27 10:53:56,782 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 10:53:56,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 10:53:56,783 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 10:53:56,783 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 10:53:56,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 10:53:56,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 10:53:56,785 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 10:53:56,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 10:53:56,785 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 10:53:56,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 10:53:56,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 10:53:56,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-27 10:53:56,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 10:53:56,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-27 10:53:56,787 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-27 10:53:56,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 10:53:56,787 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 10:53:56,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-27 10:53:56,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 10:53:56,788 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 10:53:56,788 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 10:53:56,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 10:53:56,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 10:53:56,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 10:53:56,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-27 10:53:56,789 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 10:53:56,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 10:53:56,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-27 10:53:56,789 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 10:53:56,789 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0a853f0131530f88013a3fcfdf4f133f41c0569 [2021-08-27 10:53:57,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 10:53:57,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 10:53:57,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 10:53:57,076 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 10:53:57,077 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 10:53:57,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2021-08-27 10:53:57,128 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1a509c13/e0f525039550463c9c47bee1965b9356/FLAG14fbbc4c2 [2021-08-27 10:53:57,442 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 10:53:57,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2021-08-27 10:53:57,446 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1a509c13/e0f525039550463c9c47bee1965b9356/FLAG14fbbc4c2 [2021-08-27 10:53:57,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1a509c13/e0f525039550463c9c47bee1965b9356 [2021-08-27 10:53:57,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 10:53:57,890 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 10:53:57,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 10:53:57,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 10:53:57,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 10:53:57,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:53:57" (1/1) ... [2021-08-27 10:53:57,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f02304a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:53:57, skipping insertion in model container [2021-08-27 10:53:57,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:53:57" (1/1) ... [2021-08-27 10:53:57,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 10:53:57,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 10:53:57,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 10:53:57,986 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 10:53:57,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 10:53:58,001 INFO L208 MainTranslator]: Completed translation [2021-08-27 10:53:58,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:53:58 WrapperNode [2021-08-27 10:53:58,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 10:53:58,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 10:53:58,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 10:53:58,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 10:53:58,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:53:58" (1/1) ... [2021-08-27 10:53:58,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:53:58" (1/1) ... [2021-08-27 10:53:58,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 10:53:58,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 10:53:58,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 10:53:58,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 10:53:58,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:53:58" (1/1) ... [2021-08-27 10:53:58,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:53:58" (1/1) ... [2021-08-27 10:53:58,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:53:58" (1/1) ... [2021-08-27 10:53:58,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:53:58" (1/1) ... [2021-08-27 10:53:58,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:53:58" (1/1) ... [2021-08-27 10:53:58,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:53:58" (1/1) ... [2021-08-27 10:53:58,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:53:58" (1/1) ... [2021-08-27 10:53:58,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 10:53:58,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 10:53:58,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 10:53:58,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 10:53:58,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:53:58" (1/1) ... [2021-08-27 10:53:58,057 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 10:53:58,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:53:58,073 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) [2021-08-27 10:53:58,104 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 [2021-08-27 10:53:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 10:53:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 10:53:58,329 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 10:53:58,329 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-27 10:53:58,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:53:58 BoogieIcfgContainer [2021-08-27 10:53:58,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 10:53:58,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 10:53:58,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 10:53:58,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 10:53:58,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 10:53:57" (1/3) ... [2021-08-27 10:53:58,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae3d060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:53:58, skipping insertion in model container [2021-08-27 10:53:58,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:53:58" (2/3) ... [2021-08-27 10:53:58,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae3d060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:53:58, skipping insertion in model container [2021-08-27 10:53:58,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:53:58" (3/3) ... [2021-08-27 10:53:58,335 INFO L111 eAbstractionObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2021-08-27 10:53:58,338 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 10:53:58,338 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-08-27 10:53:58,375 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 10:53:58,380 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 10:53:58,380 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-08-27 10:53:58,389 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 20 states have (on average 1.85) internal successors, (37), 30 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:58,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-08-27 10:53:58,392 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:53:58,392 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-08-27 10:53:58,392 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:53:58,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:53:58,396 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2021-08-27 10:53:58,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:53:58,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161282239] [2021-08-27 10:53:58,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:53:58,404 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:53:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:53:58,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:53:58,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:53:58,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161282239] [2021-08-27 10:53:58,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161282239] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 10:53:58,508 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 10:53:58,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-27 10:53:58,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145512084] [2021-08-27 10:53:58,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 10:53:58,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:53:58,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 10:53:58,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:53:58,524 INFO L87 Difference]: Start difference. First operand has 31 states, 20 states have (on average 1.85) internal successors, (37), 30 states have internal predecessors, (37), 0 states have call successors, (0), 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 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:58,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:53:58,547 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2021-08-27 10:53:58,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 10:53:58,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2021-08-27 10:53:58,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:53:58,553 INFO L225 Difference]: With dead ends: 43 [2021-08-27 10:53:58,553 INFO L226 Difference]: Without dead ends: 30 [2021-08-27 10:53:58,555 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:53:58,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-08-27 10:53:58,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2021-08-27 10:53:58,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 28 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) [2021-08-27 10:53:58,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2021-08-27 10:53:58,576 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 3 [2021-08-27 10:53:58,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:53:58,576 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2021-08-27 10:53:58,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:58,576 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2021-08-27 10:53:58,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-27 10:53:58,577 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:53:58,577 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-27 10:53:58,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-27 10:53:58,578 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:53:58,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:53:58,580 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2021-08-27 10:53:58,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:53:58,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077393100] [2021-08-27 10:53:58,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:53:58,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:53:58,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:53:58,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:53:58,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:53:58,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077393100] [2021-08-27 10:53:58,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077393100] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 10:53:58,608 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 10:53:58,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-27 10:53:58,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824826945] [2021-08-27 10:53:58,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 10:53:58,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:53:58,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 10:53:58,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:53:58,612 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:58,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:53:58,625 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2021-08-27 10:53:58,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 10:53:58,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2021-08-27 10:53:58,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:53:58,627 INFO L225 Difference]: With dead ends: 29 [2021-08-27 10:53:58,627 INFO L226 Difference]: Without dead ends: 28 [2021-08-27 10:53:58,628 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:53:58,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-08-27 10:53:58,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-08-27 10:53:58,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.736842105263158) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:58,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2021-08-27 10:53:58,634 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 4 [2021-08-27 10:53:58,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:53:58,634 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-08-27 10:53:58,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:58,635 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2021-08-27 10:53:58,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-27 10:53:58,635 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:53:58,635 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 10:53:58,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-27 10:53:58,636 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:53:58,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:53:58,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1366845466, now seen corresponding path program 1 times [2021-08-27 10:53:58,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:53:58,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597580040] [2021-08-27 10:53:58,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:53:58,638 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:53:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:53:58,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:53:58,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:53:58,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597580040] [2021-08-27 10:53:58,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597580040] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 10:53:58,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 10:53:58,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-27 10:53:58,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103279174] [2021-08-27 10:53:58,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 10:53:58,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:53:58,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 10:53:58,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:53:58,686 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:58,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:53:58,703 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2021-08-27 10:53:58,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 10:53:58,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-08-27 10:53:58,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:53:58,705 INFO L225 Difference]: With dead ends: 51 [2021-08-27 10:53:58,705 INFO L226 Difference]: Without dead ends: 49 [2021-08-27 10:53:58,705 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:53:58,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-08-27 10:53:58,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2021-08-27 10:53:58,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 34 states have (on average 1.7352941176470589) internal successors, (59), 42 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:58,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 59 transitions. [2021-08-27 10:53:58,715 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 59 transitions. Word has length 7 [2021-08-27 10:53:58,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:53:58,716 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 59 transitions. [2021-08-27 10:53:58,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:58,716 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 59 transitions. [2021-08-27 10:53:58,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-27 10:53:58,717 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:53:58,717 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-08-27 10:53:58,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-27 10:53:58,717 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:53:58,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:53:58,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1366808307, now seen corresponding path program 1 times [2021-08-27 10:53:58,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:53:58,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130311467] [2021-08-27 10:53:58,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:53:58,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:53:58,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:53:58,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:53:58,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:53:58,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130311467] [2021-08-27 10:53:58,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130311467] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:53:58,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095548113] [2021-08-27 10:53:58,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:53:58,738 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:53:58,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:53:58,740 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) [2021-08-27 10:53:58,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-27 10:53:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:53:58,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 10:53:58,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:53:58,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:53:58,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095548113] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:53:58,807 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:53:58,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2021-08-27 10:53:58,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043838775] [2021-08-27 10:53:58,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 10:53:58,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:53:58,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 10:53:58,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 10:53:58,809 INFO L87 Difference]: Start difference. First operand 43 states and 59 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:58,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:53:58,825 INFO L93 Difference]: Finished difference Result 70 states and 92 transitions. [2021-08-27 10:53:58,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 10:53:58,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-08-27 10:53:58,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:53:58,826 INFO L225 Difference]: With dead ends: 70 [2021-08-27 10:53:58,826 INFO L226 Difference]: Without dead ends: 69 [2021-08-27 10:53:58,826 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 10:53:58,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-08-27 10:53:58,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 61. [2021-08-27 10:53:58,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 52 states have (on average 1.6923076923076923) internal successors, (88), 60 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:58,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 88 transitions. [2021-08-27 10:53:58,831 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 88 transitions. Word has length 7 [2021-08-27 10:53:58,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:53:58,832 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 88 transitions. [2021-08-27 10:53:58,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:58,832 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 88 transitions. [2021-08-27 10:53:58,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-27 10:53:58,832 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:53:58,832 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 10:53:58,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-27 10:53:59,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:53:59,052 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:53:59,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:53:59,052 INFO L82 PathProgramCache]: Analyzing trace with hash 577463568, now seen corresponding path program 1 times [2021-08-27 10:53:59,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:53:59,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667091538] [2021-08-27 10:53:59,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:53:59,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:53:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:53:59,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:53:59,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:53:59,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667091538] [2021-08-27 10:53:59,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667091538] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 10:53:59,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 10:53:59,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-27 10:53:59,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718094770] [2021-08-27 10:53:59,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 10:53:59,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:53:59,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 10:53:59,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:53:59,073 INFO L87 Difference]: Start difference. First operand 61 states and 88 transitions. Second operand has 3 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) [2021-08-27 10:53:59,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:53:59,103 INFO L93 Difference]: Finished difference Result 101 states and 146 transitions. [2021-08-27 10:53:59,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 10:53:59,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 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 [2021-08-27 10:53:59,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:53:59,105 INFO L225 Difference]: With dead ends: 101 [2021-08-27 10:53:59,107 INFO L226 Difference]: Without dead ends: 99 [2021-08-27 10:53:59,107 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:53:59,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-08-27 10:53:59,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 94. [2021-08-27 10:53:59,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 85 states have (on average 1.6588235294117648) internal successors, (141), 93 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:59,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 141 transitions. [2021-08-27 10:53:59,119 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 141 transitions. Word has length 8 [2021-08-27 10:53:59,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:53:59,120 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 141 transitions. [2021-08-27 10:53:59,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2021-08-27 10:53:59,120 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 141 transitions. [2021-08-27 10:53:59,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-27 10:53:59,120 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:53:59,120 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 10:53:59,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-27 10:53:59,121 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:53:59,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:53:59,121 INFO L82 PathProgramCache]: Analyzing trace with hash 721693167, now seen corresponding path program 1 times [2021-08-27 10:53:59,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:53:59,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862281104] [2021-08-27 10:53:59,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:53:59,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:53:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:53:59,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:53:59,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:53:59,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862281104] [2021-08-27 10:53:59,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862281104] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 10:53:59,147 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 10:53:59,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-27 10:53:59,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045695336] [2021-08-27 10:53:59,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 10:53:59,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:53:59,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 10:53:59,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:53:59,148 INFO L87 Difference]: Start difference. First operand 94 states and 141 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:59,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:53:59,165 INFO L93 Difference]: Finished difference Result 165 states and 252 transitions. [2021-08-27 10:53:59,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 10:53:59,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-08-27 10:53:59,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:53:59,167 INFO L225 Difference]: With dead ends: 165 [2021-08-27 10:53:59,167 INFO L226 Difference]: Without dead ends: 163 [2021-08-27 10:53:59,167 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:53:59,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-08-27 10:53:59,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 154. [2021-08-27 10:53:59,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 145 states have (on average 1.6137931034482758) internal successors, (234), 153 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:59,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 234 transitions. [2021-08-27 10:53:59,176 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 234 transitions. Word has length 9 [2021-08-27 10:53:59,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:53:59,176 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 234 transitions. [2021-08-27 10:53:59,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:59,176 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 234 transitions. [2021-08-27 10:53:59,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-27 10:53:59,177 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:53:59,177 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 10:53:59,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-27 10:53:59,177 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:53:59,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:53:59,177 INFO L82 PathProgramCache]: Analyzing trace with hash 897651769, now seen corresponding path program 1 times [2021-08-27 10:53:59,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:53:59,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834581663] [2021-08-27 10:53:59,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:53:59,178 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:53:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:53:59,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:53:59,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:53:59,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834581663] [2021-08-27 10:53:59,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834581663] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 10:53:59,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 10:53:59,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-27 10:53:59,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666693791] [2021-08-27 10:53:59,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 10:53:59,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:53:59,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 10:53:59,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:53:59,193 INFO L87 Difference]: Start difference. First operand 154 states and 234 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2021-08-27 10:53:59,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:53:59,220 INFO L93 Difference]: Finished difference Result 283 states and 438 transitions. [2021-08-27 10:53:59,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 10:53:59,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 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 [2021-08-27 10:53:59,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:53:59,222 INFO L225 Difference]: With dead ends: 283 [2021-08-27 10:53:59,222 INFO L226 Difference]: Without dead ends: 281 [2021-08-27 10:53:59,222 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:53:59,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-08-27 10:53:59,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 276. [2021-08-27 10:53:59,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 267 states have (on average 1.5880149812734083) internal successors, (424), 275 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:59,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 424 transitions. [2021-08-27 10:53:59,244 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 424 transitions. Word has length 10 [2021-08-27 10:53:59,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:53:59,244 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 424 transitions. [2021-08-27 10:53:59,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2021-08-27 10:53:59,245 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 424 transitions. [2021-08-27 10:53:59,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-27 10:53:59,245 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:53:59,245 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1] [2021-08-27 10:53:59,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-27 10:53:59,246 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:53:59,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:53:59,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1830298297, now seen corresponding path program 2 times [2021-08-27 10:53:59,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:53:59,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828126902] [2021-08-27 10:53:59,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:53:59,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:53:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:53:59,264 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-27 10:53:59,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:53:59,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828126902] [2021-08-27 10:53:59,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828126902] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:53:59,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081126699] [2021-08-27 10:53:59,265 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 10:53:59,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:53:59,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:53:59,266 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) [2021-08-27 10:53:59,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-27 10:53:59,286 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 10:53:59,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:53:59,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 10:53:59,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:53:59,321 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-27 10:53:59,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081126699] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:53:59,321 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:53:59,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2021-08-27 10:53:59,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27366557] [2021-08-27 10:53:59,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 10:53:59,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:53:59,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 10:53:59,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 10:53:59,323 INFO L87 Difference]: Start difference. First operand 276 states and 424 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:59,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:53:59,335 INFO L93 Difference]: Finished difference Result 276 states and 424 transitions. [2021-08-27 10:53:59,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 10:53:59,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-27 10:53:59,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:53:59,337 INFO L225 Difference]: With dead ends: 276 [2021-08-27 10:53:59,339 INFO L226 Difference]: Without dead ends: 275 [2021-08-27 10:53:59,340 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 10:53:59,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-08-27 10:53:59,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 249. [2021-08-27 10:53:59,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 241 states have (on average 1.5643153526970954) internal successors, (377), 248 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:59,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 377 transitions. [2021-08-27 10:53:59,346 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 377 transitions. Word has length 11 [2021-08-27 10:53:59,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:53:59,347 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 377 transitions. [2021-08-27 10:53:59,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:59,347 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 377 transitions. [2021-08-27 10:53:59,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-27 10:53:59,347 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:53:59,348 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2021-08-27 10:53:59,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-27 10:53:59,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-08-27 10:53:59,553 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:53:59,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:53:59,553 INFO L82 PathProgramCache]: Analyzing trace with hash -795491305, now seen corresponding path program 1 times [2021-08-27 10:53:59,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:53:59,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913039840] [2021-08-27 10:53:59,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:53:59,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:53:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:53:59,574 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:53:59,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:53:59,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913039840] [2021-08-27 10:53:59,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913039840] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:53:59,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321886321] [2021-08-27 10:53:59,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:53:59,575 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:53:59,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:53:59,578 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) [2021-08-27 10:53:59,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-27 10:53:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:53:59,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 10:53:59,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:53:59,681 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:53:59,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321886321] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:53:59,681 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:53:59,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2021-08-27 10:53:59,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535048515] [2021-08-27 10:53:59,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 10:53:59,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:53:59,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 10:53:59,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 10:53:59,683 INFO L87 Difference]: Start difference. First operand 249 states and 377 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:59,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:53:59,724 INFO L93 Difference]: Finished difference Result 449 states and 688 transitions. [2021-08-27 10:53:59,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 10:53:59,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-08-27 10:53:59,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:53:59,726 INFO L225 Difference]: With dead ends: 449 [2021-08-27 10:53:59,726 INFO L226 Difference]: Without dead ends: 447 [2021-08-27 10:53:59,727 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 10:53:59,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-08-27 10:53:59,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 357. [2021-08-27 10:53:59,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 349 states have (on average 1.5558739255014327) internal successors, (543), 356 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:59,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 543 transitions. [2021-08-27 10:53:59,735 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 543 transitions. Word has length 14 [2021-08-27 10:53:59,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:53:59,736 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 543 transitions. [2021-08-27 10:53:59,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:53:59,736 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 543 transitions. [2021-08-27 10:53:59,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-27 10:53:59,737 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:53:59,737 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 10:53:59,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-27 10:53:59,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:53:59,953 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:53:59,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:53:59,954 INFO L82 PathProgramCache]: Analyzing trace with hash 592160614, now seen corresponding path program 1 times [2021-08-27 10:53:59,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:53:59,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618798975] [2021-08-27 10:53:59,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:53:59,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:53:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:53:59,995 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:53:59,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:53:59,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618798975] [2021-08-27 10:53:59,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618798975] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:53:59,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945507229] [2021-08-27 10:53:59,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:53:59,996 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:53:59,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:53:59,999 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) [2021-08-27 10:54:00,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-27 10:54:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:00,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 10:54:00,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:00,096 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:00,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945507229] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:00,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:00,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2021-08-27 10:54:00,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31201155] [2021-08-27 10:54:00,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 10:54:00,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:00,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 10:54:00,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 10:54:00,099 INFO L87 Difference]: Start difference. First operand 357 states and 543 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:00,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:00,136 INFO L93 Difference]: Finished difference Result 611 states and 939 transitions. [2021-08-27 10:54:00,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 10:54:00,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-08-27 10:54:00,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:00,139 INFO L225 Difference]: With dead ends: 611 [2021-08-27 10:54:00,139 INFO L226 Difference]: Without dead ends: 609 [2021-08-27 10:54:00,139 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 10:54:00,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2021-08-27 10:54:00,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 465. [2021-08-27 10:54:00,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 457 states have (on average 1.5514223194748358) internal successors, (709), 464 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:00,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 709 transitions. [2021-08-27 10:54:00,148 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 709 transitions. Word has length 16 [2021-08-27 10:54:00,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:00,149 INFO L470 AbstractCegarLoop]: Abstraction has 465 states and 709 transitions. [2021-08-27 10:54:00,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:00,149 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 709 transitions. [2021-08-27 10:54:00,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-27 10:54:00,150 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:00,150 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2021-08-27 10:54:00,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:00,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:00,365 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:00,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:00,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1222343671, now seen corresponding path program 1 times [2021-08-27 10:54:00,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:00,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300373429] [2021-08-27 10:54:00,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:00,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:00,431 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:00,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:00,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300373429] [2021-08-27 10:54:00,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300373429] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:00,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37690173] [2021-08-27 10:54:00,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:00,432 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:00,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:00,437 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) [2021-08-27 10:54:00,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-27 10:54:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:00,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 10:54:00,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:00,534 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:00,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37690173] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:00,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:00,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2021-08-27 10:54:00,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85779982] [2021-08-27 10:54:00,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 10:54:00,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:00,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 10:54:00,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 10:54:00,539 INFO L87 Difference]: Start difference. First operand 465 states and 709 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:00,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:00,571 INFO L93 Difference]: Finished difference Result 837 states and 1298 transitions. [2021-08-27 10:54:00,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 10:54:00,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-08-27 10:54:00,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:00,577 INFO L225 Difference]: With dead ends: 837 [2021-08-27 10:54:00,577 INFO L226 Difference]: Without dead ends: 835 [2021-08-27 10:54:00,577 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 10:54:00,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2021-08-27 10:54:00,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 669. [2021-08-27 10:54:00,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 661 states have (on average 1.5416036308623298) internal successors, (1019), 668 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:00,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 1019 transitions. [2021-08-27 10:54:00,590 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 1019 transitions. Word has length 18 [2021-08-27 10:54:00,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:00,591 INFO L470 AbstractCegarLoop]: Abstraction has 669 states and 1019 transitions. [2021-08-27 10:54:00,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:00,591 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 1019 transitions. [2021-08-27 10:54:00,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 10:54:00,594 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:00,594 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 10:54:00,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:00,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-08-27 10:54:00,809 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:00,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:00,809 INFO L82 PathProgramCache]: Analyzing trace with hash -668230362, now seen corresponding path program 1 times [2021-08-27 10:54:00,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:00,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319408506] [2021-08-27 10:54:00,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:00,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:00,836 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:00,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:00,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319408506] [2021-08-27 10:54:00,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319408506] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:00,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984490256] [2021-08-27 10:54:00,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:00,837 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:00,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:00,838 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) [2021-08-27 10:54:00,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-27 10:54:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:00,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 10:54:00,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:00,969 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:00,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984490256] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:00,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:00,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2021-08-27 10:54:00,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253926152] [2021-08-27 10:54:00,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 10:54:00,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:00,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 10:54:00,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 10:54:00,971 INFO L87 Difference]: Start difference. First operand 669 states and 1019 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:01,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:01,005 INFO L93 Difference]: Finished difference Result 1143 states and 1767 transitions. [2021-08-27 10:54:01,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 10:54:01,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-08-27 10:54:01,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:01,009 INFO L225 Difference]: With dead ends: 1143 [2021-08-27 10:54:01,009 INFO L226 Difference]: Without dead ends: 1141 [2021-08-27 10:54:01,010 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 10:54:01,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2021-08-27 10:54:01,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 873. [2021-08-27 10:54:01,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 865 states have (on average 1.5364161849710982) internal successors, (1329), 872 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:01,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1329 transitions. [2021-08-27 10:54:01,030 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1329 transitions. Word has length 20 [2021-08-27 10:54:01,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:01,030 INFO L470 AbstractCegarLoop]: Abstraction has 873 states and 1329 transitions. [2021-08-27 10:54:01,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:01,030 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1329 transitions. [2021-08-27 10:54:01,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-27 10:54:01,031 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:01,031 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1] [2021-08-27 10:54:01,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:01,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:01,245 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:01,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:01,246 INFO L82 PathProgramCache]: Analyzing trace with hash 2023206598, now seen corresponding path program 2 times [2021-08-27 10:54:01,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:01,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109112242] [2021-08-27 10:54:01,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:01,246 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:01,288 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:01,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:01,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109112242] [2021-08-27 10:54:01,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109112242] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:01,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824618703] [2021-08-27 10:54:01,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 10:54:01,289 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:01,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:01,290 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) [2021-08-27 10:54:01,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-27 10:54:01,350 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 10:54:01,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:01,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 10:54:01,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:01,405 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:01,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824618703] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:01,405 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:01,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-08-27 10:54:01,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668854118] [2021-08-27 10:54:01,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 10:54:01,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:01,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 10:54:01,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-27 10:54:01,407 INFO L87 Difference]: Start difference. First operand 873 states and 1329 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:01,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:01,442 INFO L93 Difference]: Finished difference Result 1509 states and 2332 transitions. [2021-08-27 10:54:01,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 10:54:01,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-08-27 10:54:01,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:01,446 INFO L225 Difference]: With dead ends: 1509 [2021-08-27 10:54:01,446 INFO L226 Difference]: Without dead ends: 1507 [2021-08-27 10:54:01,447 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-27 10:54:01,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2021-08-27 10:54:01,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1195. [2021-08-27 10:54:01,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 1187 states have (on average 1.5282224094355519) internal successors, (1814), 1194 states have internal predecessors, (1814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:01,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1814 transitions. [2021-08-27 10:54:01,469 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1814 transitions. Word has length 21 [2021-08-27 10:54:01,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:01,469 INFO L470 AbstractCegarLoop]: Abstraction has 1195 states and 1814 transitions. [2021-08-27 10:54:01,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:01,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1814 transitions. [2021-08-27 10:54:01,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-27 10:54:01,470 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:01,470 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2021-08-27 10:54:01,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:01,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:01,685 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:01,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:01,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1211681860, now seen corresponding path program 2 times [2021-08-27 10:54:01,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:01,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015356707] [2021-08-27 10:54:01,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:01,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:01,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:01,707 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-08-27 10:54:01,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:01,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015356707] [2021-08-27 10:54:01,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015356707] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 10:54:01,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 10:54:01,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 10:54:01,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24529939] [2021-08-27 10:54:01,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 10:54:01,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:01,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 10:54:01,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:54:01,711 INFO L87 Difference]: Start difference. First operand 1195 states and 1814 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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) [2021-08-27 10:54:01,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:01,731 INFO L93 Difference]: Finished difference Result 1195 states and 1814 transitions. [2021-08-27 10:54:01,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 10:54:01,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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 24 [2021-08-27 10:54:01,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:01,734 INFO L225 Difference]: With dead ends: 1195 [2021-08-27 10:54:01,734 INFO L226 Difference]: Without dead ends: 1194 [2021-08-27 10:54:01,735 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:54:01,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2021-08-27 10:54:01,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2021-08-27 10:54:01,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1194 states, 1187 states have (on average 1.5080033698399327) internal successors, (1790), 1193 states have internal predecessors, (1790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:01,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1790 transitions. [2021-08-27 10:54:01,755 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1790 transitions. Word has length 24 [2021-08-27 10:54:01,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:01,755 INFO L470 AbstractCegarLoop]: Abstraction has 1194 states and 1790 transitions. [2021-08-27 10:54:01,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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) [2021-08-27 10:54:01,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1790 transitions. [2021-08-27 10:54:01,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-27 10:54:01,756 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:01,756 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2021-08-27 10:54:01,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-27 10:54:01,756 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:01,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:01,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1092753757, now seen corresponding path program 1 times [2021-08-27 10:54:01,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:01,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126968741] [2021-08-27 10:54:01,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:01,757 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:01,793 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:01,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:01,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126968741] [2021-08-27 10:54:01,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126968741] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:01,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956331841] [2021-08-27 10:54:01,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:01,794 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:01,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:01,795 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) [2021-08-27 10:54:01,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-27 10:54:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:01,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 10:54:01,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:01,931 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:01,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956331841] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:01,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:01,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-08-27 10:54:01,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235933334] [2021-08-27 10:54:01,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 10:54:01,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:01,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 10:54:01,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-27 10:54:01,932 INFO L87 Difference]: Start difference. First operand 1194 states and 1790 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 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) [2021-08-27 10:54:01,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:01,973 INFO L93 Difference]: Finished difference Result 1955 states and 2936 transitions. [2021-08-27 10:54:01,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 10:54:01,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 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 25 [2021-08-27 10:54:01,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:01,979 INFO L225 Difference]: With dead ends: 1955 [2021-08-27 10:54:01,979 INFO L226 Difference]: Without dead ends: 1954 [2021-08-27 10:54:01,980 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.4ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-27 10:54:01,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2021-08-27 10:54:02,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1430. [2021-08-27 10:54:02,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1430 states, 1423 states have (on average 1.5038650737877723) internal successors, (2140), 1429 states have internal predecessors, (2140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:02,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 2140 transitions. [2021-08-27 10:54:02,007 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 2140 transitions. Word has length 25 [2021-08-27 10:54:02,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:02,007 INFO L470 AbstractCegarLoop]: Abstraction has 1430 states and 2140 transitions. [2021-08-27 10:54:02,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 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) [2021-08-27 10:54:02,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 2140 transitions. [2021-08-27 10:54:02,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-27 10:54:02,008 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:02,008 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1] [2021-08-27 10:54:02,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-08-27 10:54:02,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-08-27 10:54:02,225 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:02,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:02,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1883170607, now seen corresponding path program 2 times [2021-08-27 10:54:02,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:02,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846147862] [2021-08-27 10:54:02,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:02,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:02,251 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:02,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:02,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846147862] [2021-08-27 10:54:02,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846147862] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:02,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608211831] [2021-08-27 10:54:02,252 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 10:54:02,252 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:02,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:02,253 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) [2021-08-27 10:54:02,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-27 10:54:02,319 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 10:54:02,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:02,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 10:54:02,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:02,391 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:02,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608211831] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:02,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:02,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-08-27 10:54:02,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903064939] [2021-08-27 10:54:02,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 10:54:02,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:02,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 10:54:02,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-27 10:54:02,394 INFO L87 Difference]: Start difference. First operand 1430 states and 2140 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 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) [2021-08-27 10:54:02,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:02,438 INFO L93 Difference]: Finished difference Result 2463 states and 3758 transitions. [2021-08-27 10:54:02,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 10:54:02,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 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 27 [2021-08-27 10:54:02,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:02,444 INFO L225 Difference]: With dead ends: 2463 [2021-08-27 10:54:02,444 INFO L226 Difference]: Without dead ends: 2461 [2021-08-27 10:54:02,445 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-27 10:54:02,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2461 states. [2021-08-27 10:54:02,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2461 to 1960. [2021-08-27 10:54:02,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1960 states, 1953 states have (on average 1.495647721454173) internal successors, (2921), 1959 states have internal predecessors, (2921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:02,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1960 states to 1960 states and 2921 transitions. [2021-08-27 10:54:02,483 INFO L78 Accepts]: Start accepts. Automaton has 1960 states and 2921 transitions. Word has length 27 [2021-08-27 10:54:02,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:02,484 INFO L470 AbstractCegarLoop]: Abstraction has 1960 states and 2921 transitions. [2021-08-27 10:54:02,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 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) [2021-08-27 10:54:02,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1960 states and 2921 transitions. [2021-08-27 10:54:02,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-27 10:54:02,486 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:02,486 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1] [2021-08-27 10:54:02,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:02,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-08-27 10:54:02,703 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:02,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:02,703 INFO L82 PathProgramCache]: Analyzing trace with hash -748146377, now seen corresponding path program 3 times [2021-08-27 10:54:02,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:02,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212526032] [2021-08-27 10:54:02,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:02,704 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:02,736 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:02,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:02,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212526032] [2021-08-27 10:54:02,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212526032] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:02,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402220065] [2021-08-27 10:54:02,737 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 10:54:02,737 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:02,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:02,741 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) [2021-08-27 10:54:02,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-27 10:54:02,858 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-08-27 10:54:02,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:02,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 10:54:02,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:02,928 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:02,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402220065] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:02,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:02,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-27 10:54:02,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250397470] [2021-08-27 10:54:02,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 10:54:02,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:02,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 10:54:02,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-27 10:54:02,930 INFO L87 Difference]: Start difference. First operand 1960 states and 2921 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:02,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:02,983 INFO L93 Difference]: Finished difference Result 3178 states and 4792 transitions. [2021-08-27 10:54:02,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 10:54:02,984 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-08-27 10:54:02,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:02,991 INFO L225 Difference]: With dead ends: 3178 [2021-08-27 10:54:02,992 INFO L226 Difference]: Without dead ends: 3176 [2021-08-27 10:54:02,993 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.8ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-27 10:54:02,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3176 states. [2021-08-27 10:54:03,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3176 to 2564. [2021-08-27 10:54:03,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 2557 states have (on average 1.4861165428236214) internal successors, (3800), 2563 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:03,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 3800 transitions. [2021-08-27 10:54:03,039 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 3800 transitions. Word has length 28 [2021-08-27 10:54:03,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:03,040 INFO L470 AbstractCegarLoop]: Abstraction has 2564 states and 3800 transitions. [2021-08-27 10:54:03,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:03,040 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 3800 transitions. [2021-08-27 10:54:03,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-27 10:54:03,041 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:03,041 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2021-08-27 10:54:03,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:03,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-08-27 10:54:03,257 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:03,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:03,258 INFO L82 PathProgramCache]: Analyzing trace with hash 84255187, now seen corresponding path program 2 times [2021-08-27 10:54:03,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:03,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710335152] [2021-08-27 10:54:03,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:03,259 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:03,280 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-08-27 10:54:03,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:03,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710335152] [2021-08-27 10:54:03,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710335152] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 10:54:03,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 10:54:03,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 10:54:03,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703454072] [2021-08-27 10:54:03,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 10:54:03,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:03,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 10:54:03,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:54:03,282 INFO L87 Difference]: Start difference. First operand 2564 states and 3800 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:03,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:03,322 INFO L93 Difference]: Finished difference Result 2564 states and 3800 transitions. [2021-08-27 10:54:03,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 10:54:03,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-08-27 10:54:03,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:03,329 INFO L225 Difference]: With dead ends: 2564 [2021-08-27 10:54:03,329 INFO L226 Difference]: Without dead ends: 2563 [2021-08-27 10:54:03,330 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:54:03,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2021-08-27 10:54:03,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2563. [2021-08-27 10:54:03,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2563 states, 2557 states have (on average 1.4661712944857255) internal successors, (3749), 2562 states have internal predecessors, (3749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:03,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 3749 transitions. [2021-08-27 10:54:03,374 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 3749 transitions. Word has length 30 [2021-08-27 10:54:03,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:03,375 INFO L470 AbstractCegarLoop]: Abstraction has 2563 states and 3749 transitions. [2021-08-27 10:54:03,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:03,375 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 3749 transitions. [2021-08-27 10:54:03,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-27 10:54:03,375 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:03,375 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2021-08-27 10:54:03,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-27 10:54:03,376 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:03,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:03,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1682870728, now seen corresponding path program 1 times [2021-08-27 10:54:03,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:03,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321287530] [2021-08-27 10:54:03,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:03,377 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:03,402 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:03,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:03,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321287530] [2021-08-27 10:54:03,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321287530] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:03,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951777007] [2021-08-27 10:54:03,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:03,403 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:03,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:03,405 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) [2021-08-27 10:54:03,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-08-27 10:54:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:03,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 10:54:03,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:03,586 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:03,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951777007] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:03,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:03,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-08-27 10:54:03,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071604665] [2021-08-27 10:54:03,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 10:54:03,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:03,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 10:54:03,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-27 10:54:03,588 INFO L87 Difference]: Start difference. First operand 2563 states and 3749 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:03,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:03,636 INFO L93 Difference]: Finished difference Result 4182 states and 6155 transitions. [2021-08-27 10:54:03,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 10:54:03,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-08-27 10:54:03,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:03,646 INFO L225 Difference]: With dead ends: 4182 [2021-08-27 10:54:03,646 INFO L226 Difference]: Without dead ends: 4181 [2021-08-27 10:54:03,648 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-27 10:54:03,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4181 states. [2021-08-27 10:54:03,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4181 to 3071. [2021-08-27 10:54:03,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3071 states, 3065 states have (on average 1.462642740619902) internal successors, (4483), 3070 states have internal predecessors, (4483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:03,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3071 states to 3071 states and 4483 transitions. [2021-08-27 10:54:03,700 INFO L78 Accepts]: Start accepts. Automaton has 3071 states and 4483 transitions. Word has length 31 [2021-08-27 10:54:03,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:03,700 INFO L470 AbstractCegarLoop]: Abstraction has 3071 states and 4483 transitions. [2021-08-27 10:54:03,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:03,700 INFO L276 IsEmpty]: Start isEmpty. Operand 3071 states and 4483 transitions. [2021-08-27 10:54:03,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-08-27 10:54:03,701 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:03,701 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2021-08-27 10:54:03,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:03,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:03,917 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:03,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:03,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1047523897, now seen corresponding path program 2 times [2021-08-27 10:54:03,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:03,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388906987] [2021-08-27 10:54:03,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:03,917 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:03,943 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:03,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:03,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388906987] [2021-08-27 10:54:03,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388906987] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:03,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643837868] [2021-08-27 10:54:03,943 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 10:54:03,944 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:03,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:03,944 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) [2021-08-27 10:54:03,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-08-27 10:54:04,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 10:54:04,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:04,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 10:54:04,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:04,166 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:04,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643837868] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:04,167 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:04,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-27 10:54:04,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106243192] [2021-08-27 10:54:04,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 10:54:04,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:04,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 10:54:04,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-27 10:54:04,168 INFO L87 Difference]: Start difference. First operand 3071 states and 4483 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:04,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:04,232 INFO L93 Difference]: Finished difference Result 4727 states and 6947 transitions. [2021-08-27 10:54:04,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 10:54:04,233 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-08-27 10:54:04,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:04,244 INFO L225 Difference]: With dead ends: 4727 [2021-08-27 10:54:04,244 INFO L226 Difference]: Without dead ends: 4726 [2021-08-27 10:54:04,246 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.2ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-27 10:54:04,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4726 states. [2021-08-27 10:54:04,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4726 to 3459. [2021-08-27 10:54:04,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3459 states, 3453 states have (on average 1.4616275702287866) internal successors, (5047), 3458 states have internal predecessors, (5047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:04,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 5047 transitions. [2021-08-27 10:54:04,299 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 5047 transitions. Word has length 33 [2021-08-27 10:54:04,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:04,299 INFO L470 AbstractCegarLoop]: Abstraction has 3459 states and 5047 transitions. [2021-08-27 10:54:04,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:04,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 5047 transitions. [2021-08-27 10:54:04,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-08-27 10:54:04,300 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:04,300 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1] [2021-08-27 10:54:04,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:04,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:04,517 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:04,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:04,517 INFO L82 PathProgramCache]: Analyzing trace with hash -507101786, now seen corresponding path program 4 times [2021-08-27 10:54:04,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:04,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444151135] [2021-08-27 10:54:04,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:04,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:04,556 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:04,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:04,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444151135] [2021-08-27 10:54:04,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444151135] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:04,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787719230] [2021-08-27 10:54:04,557 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 10:54:04,557 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:04,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:04,558 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) [2021-08-27 10:54:04,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-08-27 10:54:04,690 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 10:54:04,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:04,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 10:54:04,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:04,790 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:04,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787719230] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:04,791 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:04,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-08-27 10:54:04,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229533042] [2021-08-27 10:54:04,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 10:54:04,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:04,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 10:54:04,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-27 10:54:04,792 INFO L87 Difference]: Start difference. First operand 3459 states and 5047 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 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) [2021-08-27 10:54:04,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:04,852 INFO L93 Difference]: Finished difference Result 5326 states and 7884 transitions. [2021-08-27 10:54:04,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 10:54:04,853 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 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 35 [2021-08-27 10:54:04,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:04,860 INFO L225 Difference]: With dead ends: 5326 [2021-08-27 10:54:04,860 INFO L226 Difference]: Without dead ends: 5324 [2021-08-27 10:54:04,863 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.1ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-27 10:54:04,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5324 states. [2021-08-27 10:54:04,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5324 to 4377. [2021-08-27 10:54:04,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4377 states, 4371 states have (on average 1.453443148021048) internal successors, (6353), 4376 states have internal predecessors, (6353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:04,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4377 states to 4377 states and 6353 transitions. [2021-08-27 10:54:04,937 INFO L78 Accepts]: Start accepts. Automaton has 4377 states and 6353 transitions. Word has length 35 [2021-08-27 10:54:04,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:04,938 INFO L470 AbstractCegarLoop]: Abstraction has 4377 states and 6353 transitions. [2021-08-27 10:54:04,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 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) [2021-08-27 10:54:04,938 INFO L276 IsEmpty]: Start isEmpty. Operand 4377 states and 6353 transitions. [2021-08-27 10:54:04,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-08-27 10:54:04,939 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:04,939 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1] [2021-08-27 10:54:04,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:05,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-08-27 10:54:05,158 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:05,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:05,158 INFO L82 PathProgramCache]: Analyzing trace with hash -32854327, now seen corresponding path program 3 times [2021-08-27 10:54:05,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:05,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019166000] [2021-08-27 10:54:05,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:05,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:05,187 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:05,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:05,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019166000] [2021-08-27 10:54:05,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019166000] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:05,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115621815] [2021-08-27 10:54:05,188 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 10:54:05,188 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:05,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:05,189 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) [2021-08-27 10:54:05,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-08-27 10:54:05,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-08-27 10:54:05,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:05,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 10:54:05,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:05,434 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:05,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115621815] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:05,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:05,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-27 10:54:05,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41092770] [2021-08-27 10:54:05,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 10:54:05,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:05,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 10:54:05,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-27 10:54:05,436 INFO L87 Difference]: Start difference. First operand 4377 states and 6353 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:05,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:05,503 INFO L93 Difference]: Finished difference Result 7069 states and 10425 transitions. [2021-08-27 10:54:05,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 10:54:05,504 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-08-27 10:54:05,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:05,533 INFO L225 Difference]: With dead ends: 7069 [2021-08-27 10:54:05,534 INFO L226 Difference]: Without dead ends: 7067 [2021-08-27 10:54:05,536 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.3ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-27 10:54:05,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7067 states. [2021-08-27 10:54:05,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7067 to 5729. [2021-08-27 10:54:05,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5729 states, 5723 states have (on average 1.4441726367289882) internal successors, (8265), 5728 states have internal predecessors, (8265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:05,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5729 states to 5729 states and 8265 transitions. [2021-08-27 10:54:05,632 INFO L78 Accepts]: Start accepts. Automaton has 5729 states and 8265 transitions. Word has length 36 [2021-08-27 10:54:05,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:05,632 INFO L470 AbstractCegarLoop]: Abstraction has 5729 states and 8265 transitions. [2021-08-27 10:54:05,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:05,633 INFO L276 IsEmpty]: Start isEmpty. Operand 5729 states and 8265 transitions. [2021-08-27 10:54:05,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-08-27 10:54:05,634 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:05,634 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2021-08-27 10:54:05,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:05,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:05,852 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:05,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:05,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1137071253, now seen corresponding path program 2 times [2021-08-27 10:54:05,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:05,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362355305] [2021-08-27 10:54:05,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:05,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:05,899 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:05,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:05,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362355305] [2021-08-27 10:54:05,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362355305] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:05,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464525454] [2021-08-27 10:54:05,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 10:54:05,900 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:05,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:05,901 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) [2021-08-27 10:54:05,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-08-27 10:54:06,034 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 10:54:06,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:06,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 10:54:06,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:06,166 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:06,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464525454] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:06,167 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:06,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-27 10:54:06,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006392491] [2021-08-27 10:54:06,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 10:54:06,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:06,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 10:54:06,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-27 10:54:06,168 INFO L87 Difference]: Start difference. First operand 5729 states and 8265 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:06,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:06,239 INFO L93 Difference]: Finished difference Result 8806 states and 12809 transitions. [2021-08-27 10:54:06,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 10:54:06,239 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-08-27 10:54:06,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:06,254 INFO L225 Difference]: With dead ends: 8806 [2021-08-27 10:54:06,254 INFO L226 Difference]: Without dead ends: 8805 [2021-08-27 10:54:06,259 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.6ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-27 10:54:06,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8805 states. [2021-08-27 10:54:06,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8805 to 6453. [2021-08-27 10:54:06,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6453 states, 6447 states have (on average 1.4433069644796028) internal successors, (9305), 6452 states have internal predecessors, (9305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:06,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6453 states to 6453 states and 9305 transitions. [2021-08-27 10:54:06,377 INFO L78 Accepts]: Start accepts. Automaton has 6453 states and 9305 transitions. Word has length 41 [2021-08-27 10:54:06,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:06,377 INFO L470 AbstractCegarLoop]: Abstraction has 6453 states and 9305 transitions. [2021-08-27 10:54:06,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:06,378 INFO L276 IsEmpty]: Start isEmpty. Operand 6453 states and 9305 transitions. [2021-08-27 10:54:06,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-08-27 10:54:06,379 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:06,379 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2021-08-27 10:54:06,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:06,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:06,596 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:06,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:06,597 INFO L82 PathProgramCache]: Analyzing trace with hash 589297713, now seen corresponding path program 3 times [2021-08-27 10:54:06,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:06,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734108786] [2021-08-27 10:54:06,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:06,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:06,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:06,643 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:06,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:06,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734108786] [2021-08-27 10:54:06,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734108786] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:06,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412987836] [2021-08-27 10:54:06,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 10:54:06,644 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:06,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:06,645 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) [2021-08-27 10:54:06,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-08-27 10:54:06,814 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-08-27 10:54:06,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:06,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 10:54:06,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:06,935 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:06,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412987836] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:06,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:06,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-08-27 10:54:06,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291324713] [2021-08-27 10:54:06,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 10:54:06,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:06,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 10:54:06,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-27 10:54:06,937 INFO L87 Difference]: Start difference. First operand 6453 states and 9305 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:07,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:07,012 INFO L93 Difference]: Finished difference Result 9500 states and 13815 transitions. [2021-08-27 10:54:07,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 10:54:07,013 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-08-27 10:54:07,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:07,028 INFO L225 Difference]: With dead ends: 9500 [2021-08-27 10:54:07,028 INFO L226 Difference]: Without dead ends: 9499 [2021-08-27 10:54:07,033 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.7ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-27 10:54:07,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9499 states. [2021-08-27 10:54:07,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9499 to 7025. [2021-08-27 10:54:07,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7025 states, 7019 states have (on average 1.4433680011397636) internal successors, (10131), 7024 states have internal predecessors, (10131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:07,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 10131 transitions. [2021-08-27 10:54:07,139 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 10131 transitions. Word has length 41 [2021-08-27 10:54:07,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:07,140 INFO L470 AbstractCegarLoop]: Abstraction has 7025 states and 10131 transitions. [2021-08-27 10:54:07,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:07,140 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 10131 transitions. [2021-08-27 10:54:07,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-08-27 10:54:07,141 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:07,141 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 1, 1] [2021-08-27 10:54:07,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2021-08-27 10:54:07,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-08-27 10:54:07,358 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:07,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:07,358 INFO L82 PathProgramCache]: Analyzing trace with hash 644163159, now seen corresponding path program 5 times [2021-08-27 10:54:07,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:07,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020604435] [2021-08-27 10:54:07,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:07,358 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:07,403 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:07,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:07,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020604435] [2021-08-27 10:54:07,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020604435] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:07,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160929451] [2021-08-27 10:54:07,403 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 10:54:07,403 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:07,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:07,404 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) [2021-08-27 10:54:07,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-08-27 10:54:07,560 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-08-27 10:54:07,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:07,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 10:54:07,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:07,684 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:07,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160929451] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:07,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:07,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-08-27 10:54:07,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020454959] [2021-08-27 10:54:07,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 10:54:07,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:07,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 10:54:07,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-27 10:54:07,686 INFO L87 Difference]: Start difference. First operand 7025 states and 10131 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 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) [2021-08-27 10:54:07,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:07,760 INFO L93 Difference]: Finished difference Result 10381 states and 15206 transitions. [2021-08-27 10:54:07,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 10:54:07,760 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 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 42 [2021-08-27 10:54:07,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:07,774 INFO L225 Difference]: With dead ends: 10381 [2021-08-27 10:54:07,774 INFO L226 Difference]: Without dead ends: 10379 [2021-08-27 10:54:07,779 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.9ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-27 10:54:07,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10379 states. [2021-08-27 10:54:07,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10379 to 8665. [2021-08-27 10:54:07,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8665 states, 8659 states have (on average 1.4364245293913847) internal successors, (12438), 8664 states have internal predecessors, (12438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:07,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8665 states to 8665 states and 12438 transitions. [2021-08-27 10:54:07,934 INFO L78 Accepts]: Start accepts. Automaton has 8665 states and 12438 transitions. Word has length 42 [2021-08-27 10:54:07,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:07,935 INFO L470 AbstractCegarLoop]: Abstraction has 8665 states and 12438 transitions. [2021-08-27 10:54:07,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 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) [2021-08-27 10:54:07,935 INFO L276 IsEmpty]: Start isEmpty. Operand 8665 states and 12438 transitions. [2021-08-27 10:54:07,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-08-27 10:54:07,937 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:07,937 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1] [2021-08-27 10:54:07,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:08,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:08,154 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:08,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:08,155 INFO L82 PathProgramCache]: Analyzing trace with hash -809708433, now seen corresponding path program 4 times [2021-08-27 10:54:08,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:08,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625721543] [2021-08-27 10:54:08,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:08,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:08,189 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:08,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:08,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625721543] [2021-08-27 10:54:08,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625721543] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:08,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617179658] [2021-08-27 10:54:08,189 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 10:54:08,190 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:08,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:08,191 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) [2021-08-27 10:54:08,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-08-27 10:54:08,385 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 10:54:08,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:08,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 10:54:08,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:08,530 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:08,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617179658] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:08,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:08,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-08-27 10:54:08,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770781074] [2021-08-27 10:54:08,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 10:54:08,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:08,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 10:54:08,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-27 10:54:08,531 INFO L87 Difference]: Start difference. First operand 8665 states and 12438 transitions. Second operand has 7 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:08,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:08,618 INFO L93 Difference]: Finished difference Result 13312 states and 19429 transitions. [2021-08-27 10:54:08,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 10:54:08,618 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 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 [2021-08-27 10:54:08,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:08,635 INFO L225 Difference]: With dead ends: 13312 [2021-08-27 10:54:08,635 INFO L226 Difference]: Without dead ends: 13310 [2021-08-27 10:54:08,641 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.8ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-27 10:54:08,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13310 states. [2021-08-27 10:54:08,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13310 to 10967. [2021-08-27 10:54:08,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10967 states, 10961 states have (on average 1.4284280631329258) internal successors, (15657), 10966 states have internal predecessors, (15657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:08,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10967 states to 10967 states and 15657 transitions. [2021-08-27 10:54:08,830 INFO L78 Accepts]: Start accepts. Automaton has 10967 states and 15657 transitions. Word has length 45 [2021-08-27 10:54:08,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:08,831 INFO L470 AbstractCegarLoop]: Abstraction has 10967 states and 15657 transitions. [2021-08-27 10:54:08,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:08,831 INFO L276 IsEmpty]: Start isEmpty. Operand 10967 states and 15657 transitions. [2021-08-27 10:54:08,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-08-27 10:54:08,832 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:08,833 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 1, 1] [2021-08-27 10:54:08,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:09,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:09,045 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:09,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:09,045 INFO L82 PathProgramCache]: Analyzing trace with hash -144620410, now seen corresponding path program 6 times [2021-08-27 10:54:09,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:09,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037663609] [2021-08-27 10:54:09,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:09,046 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:09,105 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:09,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:09,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037663609] [2021-08-27 10:54:09,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037663609] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:09,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230535403] [2021-08-27 10:54:09,106 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 10:54:09,106 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:09,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:09,129 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) [2021-08-27 10:54:09,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-08-27 10:54:09,321 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-08-27 10:54:09,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:09,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 10:54:09,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:09,459 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:09,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230535403] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:09,460 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:09,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-08-27 10:54:09,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033319110] [2021-08-27 10:54:09,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 10:54:09,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:09,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 10:54:09,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-08-27 10:54:09,461 INFO L87 Difference]: Start difference. First operand 10967 states and 15657 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:09,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:09,621 INFO L93 Difference]: Finished difference Result 15622 states and 22665 transitions. [2021-08-27 10:54:09,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 10:54:09,621 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-08-27 10:54:09,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:09,640 INFO L225 Difference]: With dead ends: 15622 [2021-08-27 10:54:09,641 INFO L226 Difference]: Without dead ends: 15620 [2021-08-27 10:54:09,646 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.9ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-08-27 10:54:09,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15620 states. [2021-08-27 10:54:09,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15620 to 13091. [2021-08-27 10:54:09,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13091 states, 13085 states have (on average 1.4221627818112343) internal successors, (18609), 13090 states have internal predecessors, (18609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:09,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13091 states to 13091 states and 18609 transitions. [2021-08-27 10:54:09,874 INFO L78 Accepts]: Start accepts. Automaton has 13091 states and 18609 transitions. Word has length 49 [2021-08-27 10:54:09,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:09,874 INFO L470 AbstractCegarLoop]: Abstraction has 13091 states and 18609 transitions. [2021-08-27 10:54:09,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:09,874 INFO L276 IsEmpty]: Start isEmpty. Operand 13091 states and 18609 transitions. [2021-08-27 10:54:09,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-08-27 10:54:09,876 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:09,876 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 1, 1] [2021-08-27 10:54:09,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:10,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:10,090 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:10,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:10,090 INFO L82 PathProgramCache]: Analyzing trace with hash 2004605083, now seen corresponding path program 4 times [2021-08-27 10:54:10,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:10,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566761042] [2021-08-27 10:54:10,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:10,091 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:10,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:10,135 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:10,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:10,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566761042] [2021-08-27 10:54:10,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566761042] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:10,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083746578] [2021-08-27 10:54:10,136 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 10:54:10,136 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:10,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:10,137 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) [2021-08-27 10:54:10,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-08-27 10:54:10,397 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 10:54:10,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:10,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 10:54:10,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:10,532 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:10,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083746578] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:10,533 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:10,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-08-27 10:54:10,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557599672] [2021-08-27 10:54:10,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 10:54:10,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:10,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 10:54:10,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-27 10:54:10,534 INFO L87 Difference]: Start difference. First operand 13091 states and 18609 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:10,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:10,715 INFO L93 Difference]: Finished difference Result 19890 states and 28521 transitions. [2021-08-27 10:54:10,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 10:54:10,716 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-08-27 10:54:10,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:10,737 INFO L225 Difference]: With dead ends: 19890 [2021-08-27 10:54:10,738 INFO L226 Difference]: Without dead ends: 19889 [2021-08-27 10:54:10,744 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.1ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-27 10:54:10,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19889 states. [2021-08-27 10:54:10,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19889 to 14129. [2021-08-27 10:54:10,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14129 states, 14123 states have (on average 1.4229979466119096) internal successors, (20097), 14128 states have internal predecessors, (20097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:10,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14129 states to 14129 states and 20097 transitions. [2021-08-27 10:54:10,967 INFO L78 Accepts]: Start accepts. Automaton has 14129 states and 20097 transitions. Word has length 49 [2021-08-27 10:54:10,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:10,968 INFO L470 AbstractCegarLoop]: Abstraction has 14129 states and 20097 transitions. [2021-08-27 10:54:10,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:10,968 INFO L276 IsEmpty]: Start isEmpty. Operand 14129 states and 20097 transitions. [2021-08-27 10:54:10,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-27 10:54:10,970 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:10,970 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2021-08-27 10:54:10,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:11,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-08-27 10:54:11,185 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:11,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:11,185 INFO L82 PathProgramCache]: Analyzing trace with hash -85375778, now seen corresponding path program 3 times [2021-08-27 10:54:11,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:11,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632002139] [2021-08-27 10:54:11,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:11,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:11,228 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:11,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:11,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632002139] [2021-08-27 10:54:11,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632002139] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:11,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701855684] [2021-08-27 10:54:11,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 10:54:11,229 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:11,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:11,230 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) [2021-08-27 10:54:11,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-08-27 10:54:11,503 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-08-27 10:54:11,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:11,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 10:54:11,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:11,639 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:11,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701855684] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:11,639 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:11,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-08-27 10:54:11,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436215095] [2021-08-27 10:54:11,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 10:54:11,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:11,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 10:54:11,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-27 10:54:11,640 INFO L87 Difference]: Start difference. First operand 14129 states and 20097 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:11,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:11,764 INFO L93 Difference]: Finished difference Result 20774 states and 29837 transitions. [2021-08-27 10:54:11,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 10:54:11,765 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-08-27 10:54:11,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:11,788 INFO L225 Difference]: With dead ends: 20774 [2021-08-27 10:54:11,789 INFO L226 Difference]: Without dead ends: 20773 [2021-08-27 10:54:11,797 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.2ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-27 10:54:11,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20773 states. [2021-08-27 10:54:11,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20773 to 15381. [2021-08-27 10:54:11,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15381 states, 15375 states have (on average 1.4231544715447155) internal successors, (21881), 15380 states have internal predecessors, (21881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:12,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15381 states to 15381 states and 21881 transitions. [2021-08-27 10:54:12,011 INFO L78 Accepts]: Start accepts. Automaton has 15381 states and 21881 transitions. Word has length 51 [2021-08-27 10:54:12,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:12,012 INFO L470 AbstractCegarLoop]: Abstraction has 15381 states and 21881 transitions. [2021-08-27 10:54:12,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:12,012 INFO L276 IsEmpty]: Start isEmpty. Operand 15381 states and 21881 transitions. [2021-08-27 10:54:12,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-08-27 10:54:12,014 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:12,014 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 1, 1] [2021-08-27 10:54:12,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:12,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-08-27 10:54:12,229 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:12,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:12,229 INFO L82 PathProgramCache]: Analyzing trace with hash -884758135, now seen corresponding path program 5 times [2021-08-27 10:54:12,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:12,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362086041] [2021-08-27 10:54:12,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:12,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:12,268 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:12,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:12,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362086041] [2021-08-27 10:54:12,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362086041] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:12,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627740863] [2021-08-27 10:54:12,269 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 10:54:12,269 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:12,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:12,270 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) [2021-08-27 10:54:12,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-08-27 10:54:12,551 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-08-27 10:54:12,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:12,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 10:54:12,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:12,682 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:12,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627740863] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:12,683 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:12,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-08-27 10:54:12,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334036245] [2021-08-27 10:54:12,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 10:54:12,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:12,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 10:54:12,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-27 10:54:12,684 INFO L87 Difference]: Start difference. First operand 15381 states and 21881 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:12,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:12,807 INFO L93 Difference]: Finished difference Result 22697 states and 32841 transitions. [2021-08-27 10:54:12,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 10:54:12,808 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-08-27 10:54:12,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:12,837 INFO L225 Difference]: With dead ends: 22697 [2021-08-27 10:54:12,837 INFO L226 Difference]: Without dead ends: 22695 [2021-08-27 10:54:12,846 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.2ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-27 10:54:12,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22695 states. [2021-08-27 10:54:13,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22695 to 18973. [2021-08-27 10:54:13,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18973 states, 18967 states have (on average 1.4163547213581484) internal successors, (26864), 18972 states have internal predecessors, (26864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:13,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18973 states to 18973 states and 26864 transitions. [2021-08-27 10:54:13,173 INFO L78 Accepts]: Start accepts. Automaton has 18973 states and 26864 transitions. Word has length 54 [2021-08-27 10:54:13,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:13,173 INFO L470 AbstractCegarLoop]: Abstraction has 18973 states and 26864 transitions. [2021-08-27 10:54:13,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:13,174 INFO L276 IsEmpty]: Start isEmpty. Operand 18973 states and 26864 transitions. [2021-08-27 10:54:13,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-08-27 10:54:13,176 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:13,177 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 1, 1] [2021-08-27 10:54:13,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:13,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:13,382 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:13,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:13,382 INFO L82 PathProgramCache]: Analyzing trace with hash -931224713, now seen corresponding path program 7 times [2021-08-27 10:54:13,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:13,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627854061] [2021-08-27 10:54:13,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:13,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:13,443 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:13,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:13,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627854061] [2021-08-27 10:54:13,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627854061] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:13,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137427750] [2021-08-27 10:54:13,444 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 10:54:13,444 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:13,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:13,445 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) [2021-08-27 10:54:13,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-08-27 10:54:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:13,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 10:54:13,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:13,936 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:13,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137427750] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:13,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:13,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-08-27 10:54:13,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090660241] [2021-08-27 10:54:13,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 10:54:13,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:13,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 10:54:13,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-08-27 10:54:13,938 INFO L87 Difference]: Start difference. First operand 18973 states and 26864 transitions. Second operand has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 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) [2021-08-27 10:54:14,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:14,124 INFO L93 Difference]: Finished difference Result 26251 states and 37778 transitions. [2021-08-27 10:54:14,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 10:54:14,124 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-08-27 10:54:14,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:14,157 INFO L225 Difference]: With dead ends: 26251 [2021-08-27 10:54:14,157 INFO L226 Difference]: Without dead ends: 26249 [2021-08-27 10:54:14,166 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.0ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-08-27 10:54:14,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26249 states. [2021-08-27 10:54:14,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26249 to 22311. [2021-08-27 10:54:14,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22311 states, 22305 states have (on average 1.4110289172831203) internal successors, (31473), 22310 states have internal predecessors, (31473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:14,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22311 states to 22311 states and 31473 transitions. [2021-08-27 10:54:14,516 INFO L78 Accepts]: Start accepts. Automaton has 22311 states and 31473 transitions. Word has length 56 [2021-08-27 10:54:14,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:14,516 INFO L470 AbstractCegarLoop]: Abstraction has 22311 states and 31473 transitions. [2021-08-27 10:54:14,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 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) [2021-08-27 10:54:14,517 INFO L276 IsEmpty]: Start isEmpty. Operand 22311 states and 31473 transitions. [2021-08-27 10:54:14,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-08-27 10:54:14,519 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:14,519 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 1, 1] [2021-08-27 10:54:14,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2021-08-27 10:54:14,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:14,728 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:14,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:14,728 INFO L82 PathProgramCache]: Analyzing trace with hash -2041729275, now seen corresponding path program 5 times [2021-08-27 10:54:14,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:14,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157313367] [2021-08-27 10:54:14,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:14,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:14,784 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:14,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:14,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157313367] [2021-08-27 10:54:14,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157313367] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:14,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266047278] [2021-08-27 10:54:14,785 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 10:54:14,785 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:14,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:14,796 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) [2021-08-27 10:54:14,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-08-27 10:54:15,101 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-08-27 10:54:15,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:15,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 10:54:15,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:15,263 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:15,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266047278] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:15,264 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:15,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-08-27 10:54:15,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739174219] [2021-08-27 10:54:15,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 10:54:15,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:15,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 10:54:15,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-08-27 10:54:15,265 INFO L87 Difference]: Start difference. First operand 22311 states and 31473 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 8 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) [2021-08-27 10:54:15,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:15,513 INFO L93 Difference]: Finished difference Result 32955 states and 46932 transitions. [2021-08-27 10:54:15,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 10:54:15,513 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 8 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) Word has length 57 [2021-08-27 10:54:15,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:15,548 INFO L225 Difference]: With dead ends: 32955 [2021-08-27 10:54:15,548 INFO L226 Difference]: Without dead ends: 32954 [2021-08-27 10:54:15,552 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.8ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-08-27 10:54:15,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32954 states. [2021-08-27 10:54:15,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32954 to 23705. [2021-08-27 10:54:15,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23705 states, 23699 states have (on average 1.4119583104772353) internal successors, (33462), 23704 states have internal predecessors, (33462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:15,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23705 states to 23705 states and 33462 transitions. [2021-08-27 10:54:15,848 INFO L78 Accepts]: Start accepts. Automaton has 23705 states and 33462 transitions. Word has length 57 [2021-08-27 10:54:15,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:15,848 INFO L470 AbstractCegarLoop]: Abstraction has 23705 states and 33462 transitions. [2021-08-27 10:54:15,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 8 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) [2021-08-27 10:54:15,848 INFO L276 IsEmpty]: Start isEmpty. Operand 23705 states and 33462 transitions. [2021-08-27 10:54:15,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-08-27 10:54:15,852 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:15,852 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1] [2021-08-27 10:54:15,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:16,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:16,062 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:16,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:16,062 INFO L82 PathProgramCache]: Analyzing trace with hash 2087316113, now seen corresponding path program 4 times [2021-08-27 10:54:16,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:16,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664783774] [2021-08-27 10:54:16,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:16,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:16,101 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:16,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:16,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664783774] [2021-08-27 10:54:16,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664783774] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:16,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545693376] [2021-08-27 10:54:16,102 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 10:54:16,102 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:16,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:16,103 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) [2021-08-27 10:54:16,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-08-27 10:54:16,414 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 10:54:16,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:16,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 10:54:16,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:16,573 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:16,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545693376] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:16,573 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:16,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-08-27 10:54:16,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977275684] [2021-08-27 10:54:16,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 10:54:16,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:16,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 10:54:16,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-27 10:54:16,574 INFO L87 Difference]: Start difference. First operand 23705 states and 33462 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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) [2021-08-27 10:54:16,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:16,751 INFO L93 Difference]: Finished difference Result 33669 states and 48018 transitions. [2021-08-27 10:54:16,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 10:54:16,751 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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 61 [2021-08-27 10:54:16,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:16,792 INFO L225 Difference]: With dead ends: 33669 [2021-08-27 10:54:16,793 INFO L226 Difference]: Without dead ends: 33668 [2021-08-27 10:54:16,804 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.5ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-27 10:54:16,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33668 states. [2021-08-27 10:54:17,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33668 to 25269. [2021-08-27 10:54:17,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25269 states, 25263 states have (on average 1.412500494794759) internal successors, (35684), 25268 states have internal predecessors, (35684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:17,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25269 states to 25269 states and 35684 transitions. [2021-08-27 10:54:17,213 INFO L78 Accepts]: Start accepts. Automaton has 25269 states and 35684 transitions. Word has length 61 [2021-08-27 10:54:17,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:17,213 INFO L470 AbstractCegarLoop]: Abstraction has 25269 states and 35684 transitions. [2021-08-27 10:54:17,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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) [2021-08-27 10:54:17,213 INFO L276 IsEmpty]: Start isEmpty. Operand 25269 states and 35684 transitions. [2021-08-27 10:54:17,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-08-27 10:54:17,217 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:17,217 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 1, 1] [2021-08-27 10:54:17,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:17,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-08-27 10:54:17,421 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:17,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:17,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1714864998, now seen corresponding path program 8 times [2021-08-27 10:54:17,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:17,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925743974] [2021-08-27 10:54:17,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:17,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:17,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:17,488 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:17,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:17,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925743974] [2021-08-27 10:54:17,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925743974] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:17,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101813003] [2021-08-27 10:54:17,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 10:54:17,489 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:17,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:17,505 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) [2021-08-27 10:54:17,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-08-27 10:54:17,829 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 10:54:17,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:17,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 10:54:17,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:18,001 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:18,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101813003] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:18,002 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:18,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-08-27 10:54:18,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100062645] [2021-08-27 10:54:18,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 10:54:18,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:18,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 10:54:18,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-08-27 10:54:18,003 INFO L87 Difference]: Start difference. First operand 25269 states and 35684 transitions. Second operand has 11 states, 10 states have (on average 6.3) internal successors, (63), 10 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) [2021-08-27 10:54:18,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:18,198 INFO L93 Difference]: Finished difference Result 34130 states and 48968 transitions. [2021-08-27 10:54:18,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 10:54:18,198 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.3) internal successors, (63), 10 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 63 [2021-08-27 10:54:18,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:18,238 INFO L225 Difference]: With dead ends: 34130 [2021-08-27 10:54:18,238 INFO L226 Difference]: Without dead ends: 34128 [2021-08-27 10:54:18,248 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.4ms TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-08-27 10:54:18,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34128 states. [2021-08-27 10:54:18,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34128 to 29345. [2021-08-27 10:54:18,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29345 states, 29339 states have (on average 1.4078871127168615) internal successors, (41306), 29344 states have internal predecessors, (41306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:18,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29345 states to 29345 states and 41306 transitions. [2021-08-27 10:54:18,609 INFO L78 Accepts]: Start accepts. Automaton has 29345 states and 41306 transitions. Word has length 63 [2021-08-27 10:54:18,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:18,609 INFO L470 AbstractCegarLoop]: Abstraction has 29345 states and 41306 transitions. [2021-08-27 10:54:18,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.3) internal successors, (63), 10 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) [2021-08-27 10:54:18,610 INFO L276 IsEmpty]: Start isEmpty. Operand 29345 states and 41306 transitions. [2021-08-27 10:54:18,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-08-27 10:54:18,613 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:18,614 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1] [2021-08-27 10:54:18,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2021-08-27 10:54:18,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-08-27 10:54:18,817 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:18,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:18,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1360130479, now seen corresponding path program 6 times [2021-08-27 10:54:18,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:18,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145357134] [2021-08-27 10:54:18,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:18,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:18,860 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:18,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:18,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145357134] [2021-08-27 10:54:18,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145357134] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:18,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470678186] [2021-08-27 10:54:18,861 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 10:54:18,861 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:18,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:18,865 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) [2021-08-27 10:54:18,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-08-27 10:54:19,325 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-08-27 10:54:19,325 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:19,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 10:54:19,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:19,478 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:19,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470678186] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:19,479 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:19,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-08-27 10:54:19,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012762661] [2021-08-27 10:54:19,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 10:54:19,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:19,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 10:54:19,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-08-27 10:54:19,480 INFO L87 Difference]: Start difference. First operand 29345 states and 41306 transitions. Second operand has 9 states, 8 states have (on average 7.875) internal successors, (63), 8 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) [2021-08-27 10:54:19,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:19,669 INFO L93 Difference]: Finished difference Result 41880 states and 59971 transitions. [2021-08-27 10:54:19,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 10:54:19,669 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 8 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 63 [2021-08-27 10:54:19,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:19,721 INFO L225 Difference]: With dead ends: 41880 [2021-08-27 10:54:19,722 INFO L226 Difference]: Without dead ends: 41878 [2021-08-27 10:54:19,734 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.4ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-08-27 10:54:19,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41878 states. [2021-08-27 10:54:20,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41878 to 35465. [2021-08-27 10:54:20,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35465 states, 35459 states have (on average 1.4021263995036521) internal successors, (49718), 35464 states have internal predecessors, (49718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:20,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35465 states to 35465 states and 49718 transitions. [2021-08-27 10:54:20,184 INFO L78 Accepts]: Start accepts. Automaton has 35465 states and 49718 transitions. Word has length 63 [2021-08-27 10:54:20,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:20,184 INFO L470 AbstractCegarLoop]: Abstraction has 35465 states and 49718 transitions. [2021-08-27 10:54:20,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 8 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) [2021-08-27 10:54:20,185 INFO L276 IsEmpty]: Start isEmpty. Operand 35465 states and 49718 transitions. [2021-08-27 10:54:20,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-08-27 10:54:20,208 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:20,208 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 1, 1] [2021-08-27 10:54:20,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:20,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-08-27 10:54:20,425 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:20,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:20,425 INFO L82 PathProgramCache]: Analyzing trace with hash -851477649, now seen corresponding path program 6 times [2021-08-27 10:54:20,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:20,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901698495] [2021-08-27 10:54:20,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:20,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:20,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:20,495 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:20,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:20,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901698495] [2021-08-27 10:54:20,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901698495] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:20,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138717968] [2021-08-27 10:54:20,496 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 10:54:20,497 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:20,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:20,505 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) [2021-08-27 10:54:20,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-08-27 10:54:20,860 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-08-27 10:54:20,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:20,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 10:54:20,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:21,090 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:21,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138717968] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:21,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:21,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-08-27 10:54:21,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444056270] [2021-08-27 10:54:21,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 10:54:21,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:21,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 10:54:21,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-08-27 10:54:21,093 INFO L87 Difference]: Start difference. First operand 35465 states and 49718 transitions. Second operand has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:21,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:21,402 INFO L93 Difference]: Finished difference Result 51129 states and 72397 transitions. [2021-08-27 10:54:21,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 10:54:21,403 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-08-27 10:54:21,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:21,470 INFO L225 Difference]: With dead ends: 51129 [2021-08-27 10:54:21,470 INFO L226 Difference]: Without dead ends: 51128 [2021-08-27 10:54:21,487 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.6ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-08-27 10:54:21,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51128 states. [2021-08-27 10:54:22,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51128 to 37261. [2021-08-27 10:54:22,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37261 states, 37255 states have (on average 1.4030599919473896) internal successors, (52271), 37260 states have internal predecessors, (52271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:22,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37261 states to 37261 states and 52271 transitions. [2021-08-27 10:54:22,138 INFO L78 Accepts]: Start accepts. Automaton has 37261 states and 52271 transitions. Word has length 65 [2021-08-27 10:54:22,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:22,138 INFO L470 AbstractCegarLoop]: Abstraction has 37261 states and 52271 transitions. [2021-08-27 10:54:22,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:22,139 INFO L276 IsEmpty]: Start isEmpty. Operand 37261 states and 52271 transitions. [2021-08-27 10:54:22,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-08-27 10:54:22,143 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:22,143 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 1, 1] [2021-08-27 10:54:22,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:22,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:22,348 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:22,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:22,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1457084265, now seen corresponding path program 9 times [2021-08-27 10:54:22,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:22,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911425992] [2021-08-27 10:54:22,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:22,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:22,433 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:22,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:22,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911425992] [2021-08-27 10:54:22,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911425992] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:22,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217109065] [2021-08-27 10:54:22,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 10:54:22,434 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:22,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:22,434 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) [2021-08-27 10:54:22,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-08-27 10:54:22,847 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-08-27 10:54:22,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:22,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 10:54:22,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:23,033 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:23,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217109065] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:23,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:23,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-08-27 10:54:23,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970817840] [2021-08-27 10:54:23,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 10:54:23,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:23,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 10:54:23,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-08-27 10:54:23,034 INFO L87 Difference]: Start difference. First operand 37261 states and 52271 transitions. Second operand has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 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) [2021-08-27 10:54:23,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:23,359 INFO L93 Difference]: Finished difference Result 49299 states and 70254 transitions. [2021-08-27 10:54:23,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 10:54:23,359 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 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) Word has length 70 [2021-08-27 10:54:23,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:23,431 INFO L225 Difference]: With dead ends: 49299 [2021-08-27 10:54:23,431 INFO L226 Difference]: Without dead ends: 49297 [2021-08-27 10:54:23,448 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.9ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-08-27 10:54:23,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49297 states. [2021-08-27 10:54:23,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49297 to 42813. [2021-08-27 10:54:24,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42813 states, 42807 states have (on average 1.3990468848552806) internal successors, (59889), 42812 states have internal predecessors, (59889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:24,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42813 states to 42813 states and 59889 transitions. [2021-08-27 10:54:24,063 INFO L78 Accepts]: Start accepts. Automaton has 42813 states and 59889 transitions. Word has length 70 [2021-08-27 10:54:24,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:24,063 INFO L470 AbstractCegarLoop]: Abstraction has 42813 states and 59889 transitions. [2021-08-27 10:54:24,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 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) [2021-08-27 10:54:24,063 INFO L276 IsEmpty]: Start isEmpty. Operand 42813 states and 59889 transitions. [2021-08-27 10:54:24,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-08-27 10:54:24,068 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:24,068 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1] [2021-08-27 10:54:24,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:24,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-08-27 10:54:24,269 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:24,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:24,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1593226108, now seen corresponding path program 5 times [2021-08-27 10:54:24,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:24,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916150636] [2021-08-27 10:54:24,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:24,269 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:24,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:24,318 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:24,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:24,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916150636] [2021-08-27 10:54:24,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916150636] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:24,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740201436] [2021-08-27 10:54:24,319 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 10:54:24,319 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:24,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:24,320 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) [2021-08-27 10:54:24,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-08-27 10:54:24,793 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-08-27 10:54:24,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:24,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 10:54:24,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:24,987 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:24,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740201436] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:24,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:24,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-08-27 10:54:24,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785071990] [2021-08-27 10:54:24,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 10:54:24,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:24,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 10:54:24,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-08-27 10:54:24,988 INFO L87 Difference]: Start difference. First operand 42813 states and 59889 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:25,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:25,297 INFO L93 Difference]: Finished difference Result 59102 states and 83563 transitions. [2021-08-27 10:54:25,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 10:54:25,297 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-08-27 10:54:25,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:25,376 INFO L225 Difference]: With dead ends: 59102 [2021-08-27 10:54:25,376 INFO L226 Difference]: Without dead ends: 59101 [2021-08-27 10:54:25,395 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.9ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-08-27 10:54:25,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59101 states. [2021-08-27 10:54:25,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59101 to 45005. [2021-08-27 10:54:25,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45005 states, 44999 states have (on average 1.3997422164937) internal successors, (62987), 45004 states have internal predecessors, (62987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:26,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45005 states to 45005 states and 62987 transitions. [2021-08-27 10:54:26,003 INFO L78 Accepts]: Start accepts. Automaton has 45005 states and 62987 transitions. Word has length 71 [2021-08-27 10:54:26,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:26,003 INFO L470 AbstractCegarLoop]: Abstraction has 45005 states and 62987 transitions. [2021-08-27 10:54:26,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:26,003 INFO L276 IsEmpty]: Start isEmpty. Operand 45005 states and 62987 transitions. [2021-08-27 10:54:26,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-08-27 10:54:26,008 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:26,008 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 1, 1] [2021-08-27 10:54:26,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:26,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-08-27 10:54:26,208 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:26,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:26,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1572566089, now seen corresponding path program 7 times [2021-08-27 10:54:26,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:26,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921396633] [2021-08-27 10:54:26,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:26,209 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:26,271 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:26,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:26,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921396633] [2021-08-27 10:54:26,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921396633] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:26,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626266234] [2021-08-27 10:54:26,272 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 10:54:26,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:26,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:26,277 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) [2021-08-27 10:54:26,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-08-27 10:54:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:26,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 10:54:26,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:26,870 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:26,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626266234] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:26,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:26,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-08-27 10:54:26,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713483830] [2021-08-27 10:54:26,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 10:54:26,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:26,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 10:54:26,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-08-27 10:54:26,871 INFO L87 Difference]: Start difference. First operand 45005 states and 62987 transitions. Second operand has 10 states, 9 states have (on average 8.0) internal successors, (72), 9 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) [2021-08-27 10:54:27,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:27,166 INFO L93 Difference]: Finished difference Result 62465 states and 88920 transitions. [2021-08-27 10:54:27,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 10:54:27,167 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.0) internal successors, (72), 9 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) Word has length 72 [2021-08-27 10:54:27,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:27,251 INFO L225 Difference]: With dead ends: 62465 [2021-08-27 10:54:27,251 INFO L226 Difference]: Without dead ends: 62463 [2021-08-27 10:54:27,271 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.5ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-08-27 10:54:27,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62463 states. [2021-08-27 10:54:27,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62463 to 53489. [2021-08-27 10:54:28,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53489 states, 53483 states have (on average 1.394798347138343) internal successors, (74598), 53488 states have internal predecessors, (74598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:28,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53489 states to 53489 states and 74598 transitions. [2021-08-27 10:54:28,085 INFO L78 Accepts]: Start accepts. Automaton has 53489 states and 74598 transitions. Word has length 72 [2021-08-27 10:54:28,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:28,085 INFO L470 AbstractCegarLoop]: Abstraction has 53489 states and 74598 transitions. [2021-08-27 10:54:28,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.0) internal successors, (72), 9 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) [2021-08-27 10:54:28,085 INFO L276 IsEmpty]: Start isEmpty. Operand 53489 states and 74598 transitions. [2021-08-27 10:54:28,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-08-27 10:54:28,090 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:28,090 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 1, 1] [2021-08-27 10:54:28,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2021-08-27 10:54:28,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-08-27 10:54:28,297 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:28,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:28,297 INFO L82 PathProgramCache]: Analyzing trace with hash 2147171801, now seen corresponding path program 7 times [2021-08-27 10:54:28,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:28,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266487939] [2021-08-27 10:54:28,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:28,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:28,359 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:28,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:28,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266487939] [2021-08-27 10:54:28,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266487939] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:28,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837550436] [2021-08-27 10:54:28,360 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 10:54:28,360 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:28,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:28,361 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) [2021-08-27 10:54:28,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-08-27 10:54:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:28,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 10:54:28,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:29,016 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:29,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837550436] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:29,016 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:29,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-08-27 10:54:29,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885010877] [2021-08-27 10:54:29,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 10:54:29,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:29,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 10:54:29,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-08-27 10:54:29,017 INFO L87 Difference]: Start difference. First operand 53489 states and 74598 transitions. Second operand has 11 states, 10 states have (on average 7.3) internal successors, (73), 10 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) [2021-08-27 10:54:29,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:29,392 INFO L93 Difference]: Finished difference Result 75498 states and 106380 transitions. [2021-08-27 10:54:29,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 10:54:29,393 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.3) internal successors, (73), 10 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) Word has length 73 [2021-08-27 10:54:29,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:29,494 INFO L225 Difference]: With dead ends: 75498 [2021-08-27 10:54:29,494 INFO L226 Difference]: Without dead ends: 75497 [2021-08-27 10:54:29,520 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.2ms TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-08-27 10:54:29,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75497 states. [2021-08-27 10:54:30,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75497 to 55733. [2021-08-27 10:54:30,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55733 states, 55727 states have (on average 1.3956968794300788) internal successors, (77778), 55732 states have internal predecessors, (77778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:30,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55733 states to 55733 states and 77778 transitions. [2021-08-27 10:54:30,608 INFO L78 Accepts]: Start accepts. Automaton has 55733 states and 77778 transitions. Word has length 73 [2021-08-27 10:54:30,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:30,608 INFO L470 AbstractCegarLoop]: Abstraction has 55733 states and 77778 transitions. [2021-08-27 10:54:30,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.3) internal successors, (73), 10 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) [2021-08-27 10:54:30,608 INFO L276 IsEmpty]: Start isEmpty. Operand 55733 states and 77778 transitions. [2021-08-27 10:54:30,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-08-27 10:54:30,613 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:30,613 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1] [2021-08-27 10:54:30,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:30,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-08-27 10:54:30,814 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:30,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:30,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1519696454, now seen corresponding path program 10 times [2021-08-27 10:54:30,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:30,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754482517] [2021-08-27 10:54:30,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:30,815 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:31,099 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:31,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:31,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754482517] [2021-08-27 10:54:31,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754482517] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:31,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773299132] [2021-08-27 10:54:31,099 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 10:54:31,099 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:31,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:31,101 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) [2021-08-27 10:54:31,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-08-27 10:54:31,622 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 10:54:31,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:31,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-27 10:54:31,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:32,207 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:32,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773299132] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 10:54:32,208 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-27 10:54:32,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11] total 23 [2021-08-27 10:54:32,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262677122] [2021-08-27 10:54:32,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-27 10:54:32,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:32,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-27 10:54:32,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2021-08-27 10:54:32,209 INFO L87 Difference]: Start difference. First operand 55733 states and 77778 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:32,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:32,623 INFO L93 Difference]: Finished difference Result 74113 states and 102475 transitions. [2021-08-27 10:54:32,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 10:54:32,623 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 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 [2021-08-27 10:54:32,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:32,625 INFO L225 Difference]: With dead ends: 74113 [2021-08-27 10:54:32,625 INFO L226 Difference]: Without dead ends: 1343 [2021-08-27 10:54:32,655 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 184.7ms TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2021-08-27 10:54:32,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2021-08-27 10:54:32,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 585. [2021-08-27 10:54:32,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 581 states have (on average 1.2048192771084338) internal successors, (700), 584 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:32,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 700 transitions. [2021-08-27 10:54:32,665 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 700 transitions. Word has length 77 [2021-08-27 10:54:32,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:32,665 INFO L470 AbstractCegarLoop]: Abstraction has 585 states and 700 transitions. [2021-08-27 10:54:32,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:32,665 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 700 transitions. [2021-08-27 10:54:32,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-08-27 10:54:32,666 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:32,666 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 1, 1] [2021-08-27 10:54:32,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:32,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-08-27 10:54:32,893 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:32,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:32,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1093517585, now seen corresponding path program 8 times [2021-08-27 10:54:32,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:32,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404457691] [2021-08-27 10:54:32,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:32,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:32,955 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:32,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:32,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404457691] [2021-08-27 10:54:32,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404457691] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:32,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736893686] [2021-08-27 10:54:32,956 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 10:54:32,956 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:32,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:32,961 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) [2021-08-27 10:54:32,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-08-27 10:54:33,502 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 10:54:33,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:33,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 10:54:33,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:33,692 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:33,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736893686] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:33,692 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:33,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-08-27 10:54:33,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639209873] [2021-08-27 10:54:33,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 10:54:33,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:33,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 10:54:33,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-08-27 10:54:33,693 INFO L87 Difference]: Start difference. First operand 585 states and 700 transitions. Second operand has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:33,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:33,736 INFO L93 Difference]: Finished difference Result 701 states and 822 transitions. [2021-08-27 10:54:33,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 10:54:33,737 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-08-27 10:54:33,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:33,737 INFO L225 Difference]: With dead ends: 701 [2021-08-27 10:54:33,737 INFO L226 Difference]: Without dead ends: 587 [2021-08-27 10:54:33,738 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.5ms TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-08-27 10:54:33,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2021-08-27 10:54:33,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 481. [2021-08-27 10:54:33,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 477 states have (on average 1.180293501048218) internal successors, (563), 480 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:33,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 563 transitions. [2021-08-27 10:54:33,744 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 563 transitions. Word has length 81 [2021-08-27 10:54:33,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:33,744 INFO L470 AbstractCegarLoop]: Abstraction has 481 states and 563 transitions. [2021-08-27 10:54:33,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:33,744 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 563 transitions. [2021-08-27 10:54:33,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-08-27 10:54:33,745 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:33,745 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1] [2021-08-27 10:54:33,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:33,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:33,945 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:33,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:33,945 INFO L82 PathProgramCache]: Analyzing trace with hash -944170313, now seen corresponding path program 6 times [2021-08-27 10:54:33,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:33,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463532559] [2021-08-27 10:54:33,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:33,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:34,010 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:34,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:34,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463532559] [2021-08-27 10:54:34,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463532559] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:34,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548211083] [2021-08-27 10:54:34,011 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 10:54:34,011 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:34,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:34,013 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) [2021-08-27 10:54:34,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-08-27 10:54:34,598 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-08-27 10:54:34,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:34,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 10:54:34,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:34,817 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:34,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548211083] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:34,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:34,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-08-27 10:54:34,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508996880] [2021-08-27 10:54:34,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 10:54:34,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:34,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 10:54:34,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-08-27 10:54:34,819 INFO L87 Difference]: Start difference. First operand 481 states and 563 transitions. Second operand has 10 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:34,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:34,872 INFO L93 Difference]: Finished difference Result 546 states and 639 transitions. [2021-08-27 10:54:34,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 10:54:34,873 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-08-27 10:54:34,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:34,873 INFO L225 Difference]: With dead ends: 546 [2021-08-27 10:54:34,873 INFO L226 Difference]: Without dead ends: 379 [2021-08-27 10:54:34,874 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.0ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-08-27 10:54:34,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-08-27 10:54:34,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2021-08-27 10:54:34,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 375 states have (on average 1.112) internal successors, (417), 378 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:34,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 417 transitions. [2021-08-27 10:54:34,879 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 417 transitions. Word has length 81 [2021-08-27 10:54:34,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:34,879 INFO L470 AbstractCegarLoop]: Abstraction has 379 states and 417 transitions. [2021-08-27 10:54:34,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:34,879 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 417 transitions. [2021-08-27 10:54:34,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-08-27 10:54:34,880 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:34,880 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 1, 1] [2021-08-27 10:54:34,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:35,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-08-27 10:54:35,097 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:35,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:35,097 INFO L82 PathProgramCache]: Analyzing trace with hash -2010450365, now seen corresponding path program 8 times [2021-08-27 10:54:35,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:35,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086388377] [2021-08-27 10:54:35,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:35,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:35,167 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:35,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:35,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086388377] [2021-08-27 10:54:35,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086388377] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:35,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540582314] [2021-08-27 10:54:35,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 10:54:35,168 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:35,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:35,169 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) [2021-08-27 10:54:35,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-08-27 10:54:35,778 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 10:54:35,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:35,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 10:54:35,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:36,007 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:36,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540582314] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:36,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:36,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-08-27 10:54:36,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897267761] [2021-08-27 10:54:36,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 10:54:36,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:36,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 10:54:36,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-08-27 10:54:36,008 INFO L87 Difference]: Start difference. First operand 379 states and 417 transitions. Second operand has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:36,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:36,035 INFO L93 Difference]: Finished difference Result 464 states and 501 transitions. [2021-08-27 10:54:36,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 10:54:36,036 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-08-27 10:54:36,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:36,036 INFO L225 Difference]: With dead ends: 464 [2021-08-27 10:54:36,036 INFO L226 Difference]: Without dead ends: 397 [2021-08-27 10:54:36,036 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.2ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-08-27 10:54:36,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2021-08-27 10:54:36,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 306. [2021-08-27 10:54:36,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 303 states have (on average 1.1353135313531353) internal successors, (344), 305 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:36,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 344 transitions. [2021-08-27 10:54:36,040 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 344 transitions. Word has length 81 [2021-08-27 10:54:36,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:36,040 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 344 transitions. [2021-08-27 10:54:36,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:36,041 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 344 transitions. [2021-08-27 10:54:36,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-08-27 10:54:36,041 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:36,041 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 1, 1] [2021-08-27 10:54:36,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:36,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:36,242 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:36,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:36,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1856106743, now seen corresponding path program 9 times [2021-08-27 10:54:36,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:36,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867979227] [2021-08-27 10:54:36,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:36,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:36,314 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:36,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:36,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867979227] [2021-08-27 10:54:36,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867979227] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:36,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852687840] [2021-08-27 10:54:36,315 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 10:54:36,315 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:36,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:36,315 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) [2021-08-27 10:54:36,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-08-27 10:54:36,918 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-08-27 10:54:36,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:36,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 10:54:36,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:37,134 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:37,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852687840] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:37,134 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:37,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-08-27 10:54:37,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249555442] [2021-08-27 10:54:37,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 10:54:37,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:37,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 10:54:37,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-08-27 10:54:37,135 INFO L87 Difference]: Start difference. First operand 306 states and 344 transitions. Second operand has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 11 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) [2021-08-27 10:54:37,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:37,163 INFO L93 Difference]: Finished difference Result 319 states and 357 transitions. [2021-08-27 10:54:37,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 10:54:37,164 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 11 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 90 [2021-08-27 10:54:37,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:37,164 INFO L225 Difference]: With dead ends: 319 [2021-08-27 10:54:37,164 INFO L226 Difference]: Without dead ends: 242 [2021-08-27 10:54:37,164 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.1ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-08-27 10:54:37,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-08-27 10:54:37,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 222. [2021-08-27 10:54:37,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 221 states have (on average 1.1764705882352942) internal successors, (260), 221 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:37,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 260 transitions. [2021-08-27 10:54:37,167 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 260 transitions. Word has length 90 [2021-08-27 10:54:37,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:37,167 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 260 transitions. [2021-08-27 10:54:37,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 11 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) [2021-08-27 10:54:37,167 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 260 transitions. [2021-08-27 10:54:37,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-08-27 10:54:37,168 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:37,168 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1] [2021-08-27 10:54:37,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2021-08-27 10:54:37,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-08-27 10:54:37,368 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:37,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:37,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1359938858, now seen corresponding path program 7 times [2021-08-27 10:54:37,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:37,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548098494] [2021-08-27 10:54:37,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:37,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:37,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:37,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548098494] [2021-08-27 10:54:37,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548098494] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:37,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041714672] [2021-08-27 10:54:37,436 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 10:54:37,436 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:37,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:37,437 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) [2021-08-27 10:54:37,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-08-27 10:54:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:38,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 10:54:38,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:38,315 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:38,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041714672] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:38,315 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:38,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-08-27 10:54:38,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468327130] [2021-08-27 10:54:38,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 10:54:38,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:38,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 10:54:38,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-08-27 10:54:38,316 INFO L87 Difference]: Start difference. First operand 222 states and 260 transitions. Second operand has 11 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:38,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:38,346 INFO L93 Difference]: Finished difference Result 243 states and 280 transitions. [2021-08-27 10:54:38,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 10:54:38,346 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 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 [2021-08-27 10:54:38,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:38,347 INFO L225 Difference]: With dead ends: 243 [2021-08-27 10:54:38,347 INFO L226 Difference]: Without dead ends: 102 [2021-08-27 10:54:38,347 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.1ms TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-08-27 10:54:38,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-08-27 10:54:38,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-08-27 10:54:38,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.0) internal successors, (101), 101 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:38,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 101 transitions. [2021-08-27 10:54:38,349 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 101 transitions. Word has length 91 [2021-08-27 10:54:38,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:38,349 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 101 transitions. [2021-08-27 10:54:38,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:38,349 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 101 transitions. [2021-08-27 10:54:38,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-08-27 10:54:38,350 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:54:38,350 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1] [2021-08-27 10:54:38,367 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2021-08-27 10:54:38,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-08-27 10:54:38,550 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 10:54:38,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:54:38,550 INFO L82 PathProgramCache]: Analyzing trace with hash -498811939, now seen corresponding path program 8 times [2021-08-27 10:54:38,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:54:38,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059794015] [2021-08-27 10:54:38,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:54:38,551 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:54:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:54:38,635 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:38,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:54:38,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059794015] [2021-08-27 10:54:38,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059794015] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:38,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082201919] [2021-08-27 10:54:38,635 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 10:54:38,636 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 10:54:38,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:54:38,636 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) [2021-08-27 10:54:38,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-08-27 10:54:39,334 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 10:54:39,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 10:54:39,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 10:54:39,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 10:54:39,594 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:54:39,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082201919] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 10:54:39,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 10:54:39,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-08-27 10:54:39,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842514625] [2021-08-27 10:54:39,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 10:54:39,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:54:39,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 10:54:39,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-08-27 10:54:39,595 INFO L87 Difference]: Start difference. First operand 102 states and 101 transitions. Second operand has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:39,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:54:39,622 INFO L93 Difference]: Finished difference Result 102 states and 101 transitions. [2021-08-27 10:54:39,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 10:54:39,622 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2021-08-27 10:54:39,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:54:39,622 INFO L225 Difference]: With dead ends: 102 [2021-08-27 10:54:39,622 INFO L226 Difference]: Without dead ends: 0 [2021-08-27 10:54:39,623 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.7ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-08-27 10:54:39,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-27 10:54:39,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-27 10:54:39,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:39,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-27 10:54:39,623 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101 [2021-08-27 10:54:39,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:54:39,623 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 10:54:39,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 10:54:39,623 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-27 10:54:39,623 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-27 10:54:39,625 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:54:39,625 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:54:39,626 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:54:39,626 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:54:39,626 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:54:39,626 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:54:39,626 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:54:39,626 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:54:39,626 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:54:39,626 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:54:39,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-08-27 10:54:39,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-08-27 10:54:39,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-27 10:54:39,837 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-27 10:54:55,465 WARN L207 SmtUtils]: Spent 15.62 s on a formula simplification. DAG size of input: 2171 DAG size of output: 1847 [2021-08-27 10:54:55,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-27 10:56:18,984 WARN L207 SmtUtils]: Spent 1.39 m on a formula simplification. DAG size of input: 1809 DAG size of output: 337 [2021-08-27 10:56:18,989 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-08-27 10:56:18,989 INFO L857 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2021-08-27 10:56:18,989 INFO L857 garLoopResultBuilder]: For program point L23(lines 23 31) no Hoare annotation was computed. [2021-08-27 10:56:18,989 INFO L857 garLoopResultBuilder]: For program point L19-2(lines 19 33) no Hoare annotation was computed. [2021-08-27 10:56:18,989 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-08-27 10:56:18,989 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-08-27 10:56:18,989 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-27 10:56:18,989 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2021-08-27 10:56:18,990 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-27 10:56:18,990 INFO L857 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2021-08-27 10:56:18,990 INFO L857 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-08-27 10:56:18,990 INFO L857 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-08-27 10:56:18,990 INFO L857 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-08-27 10:56:18,990 INFO L857 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2021-08-27 10:56:18,990 INFO L857 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2021-08-27 10:56:18,990 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-08-27 10:56:18,990 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-08-27 10:56:18,990 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-27 10:56:18,990 INFO L857 garLoopResultBuilder]: For program point L29(lines 29 31) no Hoare annotation was computed. [2021-08-27 10:56:18,990 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2021-08-27 10:56:18,990 INFO L857 garLoopResultBuilder]: For program point L25(lines 25 31) no Hoare annotation was computed. [2021-08-27 10:56:18,990 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-08-27 10:56:18,990 INFO L860 garLoopResultBuilder]: At program point L34(lines 13 35) the Hoare annotation is: true [2021-08-27 10:56:18,990 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-08-27 10:56:18,990 INFO L857 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2021-08-27 10:56:18,990 INFO L857 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2021-08-27 10:56:18,990 INFO L857 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2021-08-27 10:56:18,990 INFO L857 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2021-08-27 10:56:18,990 INFO L857 garLoopResultBuilder]: For program point L22(lines 22 32) no Hoare annotation was computed. [2021-08-27 10:56:18,991 INFO L853 garLoopResultBuilder]: At program point L22-1(lines 19 33) the Hoare annotation is: (let ((.cse7 (<= 8 ULTIMATE.start_main_~i~0)) (.cse19 (<= 0 (+ ULTIMATE.start_main_~x~0 2))) (.cse48 (<= 0 (+ ULTIMATE.start_main_~y~0 2147483648))) (.cse8 (<= ULTIMATE.start_main_~y~0 0)) (.cse20 (<= ULTIMATE.start_main_~x~0 2)) (.cse26 (<= ULTIMATE.start_main_~x~0 1)) (.cse5 (<= 0 ULTIMATE.start_main_~x~0)) (.cse0 (<= ULTIMATE.start_main_~x~0 0)) (.cse2 (<= 0 ULTIMATE.start_main_~y~0)) (.cse27 (<= 0 (+ ULTIMATE.start_main_~x~0 1))) (.cse35 (<= 9 ULTIMATE.start_main_~i~0)) (.cse4 (<= ULTIMATE.start_main_~N~0 10))) (let ((.cse39 (or (and .cse26 .cse2 .cse35 .cse4 .cse5) (and .cse0 .cse2 .cse27 .cse35 .cse4))) (.cse40 (<= ULTIMATE.start_main_~x~0 9)) (.cse17 (<= 1 ULTIMATE.start_main_~i~0)) (.cse42 (<= ULTIMATE.start_main_~y~0 8)) (.cse45 (or (and .cse48 .cse0 .cse8 .cse35 .cse4 .cse19) (and .cse48 .cse8 .cse20 .cse35 .cse4 .cse5))) (.cse46 (<= 2 ULTIMATE.start_main_~i~0)) (.cse51 (or (and .cse26 .cse48 .cse7 .cse8 .cse4 .cse5) (and .cse48 .cse7 .cse0 .cse8 .cse27 .cse4))) (.cse43 (<= ULTIMATE.start_main_~y~0 7)) (.cse50 (<= 0 (+ ULTIMATE.start_main_~y~0 7))) (.cse41 (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) (.cse21 (<= 0 (+ ULTIMATE.start_main_~y~0 6))) (.cse25 (<= ULTIMATE.start_main_~y~0 6)) (.cse24 (<= ULTIMATE.start_main_~y~0 4)) (.cse13 (<= ULTIMATE.start_main_~x~0 8)) (.cse12 (<= 0 (+ ULTIMATE.start_main_~x~0 5))) (.cse23 (<= 4 ULTIMATE.start_main_~i~0)) (.cse29 (<= ULTIMATE.start_main_~y~0 1)) (.cse22 (<= ULTIMATE.start_main_~x~0 5)) (.cse49 (<= 0 (+ ULTIMATE.start_main_~x~0 7))) (.cse16 (<= 5 ULTIMATE.start_main_~i~0)) (.cse10 (<= ULTIMATE.start_main_~y~0 2)) (.cse1 (<= ULTIMATE.start_main_~y~0 3)) (.cse36 (<= 0 (+ ULTIMATE.start_main_~x~0 4))) (.cse9 (<= 0 (+ ULTIMATE.start_main_~y~0 5))) (.cse14 (<= 0 (+ ULTIMATE.start_main_~x~0 6))) (.cse11 (<= 7 ULTIMATE.start_main_~i~0)) (.cse6 (<= 0 (+ ULTIMATE.start_main_~x~0 3))) (.cse3 (<= 3 ULTIMATE.start_main_~i~0)) (.cse31 (<= 0 (+ ULTIMATE.start_main_~x~0 8))) (.cse18 (<= 0 (+ ULTIMATE.start_main_~y~0 1))) (.cse47 (<= ULTIMATE.start_main_~x~0 7)) (.cse30 (<= 0 (+ ULTIMATE.start_main_~y~0 3))) (.cse15 (<= ULTIMATE.start_main_~x~0 3)) (.cse37 (<= ULTIMATE.start_main_~y~0 5)) (.cse28 (<= 10 ULTIMATE.start_main_~i~0)) (.cse34 (<= 0 (+ ULTIMATE.start_main_~y~0 4))) (.cse44 (<= ULTIMATE.start_main_~x~0 6)) (.cse38 (<= 6 ULTIMATE.start_main_~i~0)) (.cse33 (<= ULTIMATE.start_main_~x~0 4)) (.cse32 (<= 0 (+ ULTIMATE.start_main_~y~0 2)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse0 .cse8 .cse4 .cse9) (and .cse10 .cse0 .cse2 .cse4 .cse11 .cse12) (and .cse13 .cse7 .cse8 .cse2 .cse4 .cse5) (and .cse14 .cse10 .cse7 .cse0 .cse2 .cse4) (and .cse15 .cse16 .cse10 .cse2 .cse4 .cse5) (and .cse0 .cse8 .cse17 .cse18 .cse4 .cse5) (and .cse8 (or (and .cse7 .cse0 .cse4 .cse19) (and .cse7 .cse20 .cse4 .cse5)) .cse21) (and .cse22 .cse7 .cse1 .cse2 .cse4 .cse5) (and .cse23 .cse0 .cse24 .cse2 .cse4 .cse5) (and .cse25 .cse26 .cse2 .cse4 .cse11 .cse5) (and .cse1 (or (and .cse23 .cse26 .cse2 .cse4 .cse5) (and .cse23 .cse0 .cse2 .cse27 .cse4))) (and .cse28 .cse14 .cse0 .cse24 .cse2 .cse4) (and .cse6 .cse16 .cse10 .cse0 .cse2 .cse4) (and .cse0 .cse17 .cse2 .cse4 .cse5 .cse29) (and .cse16 .cse0 .cse8 .cse4 .cse30 .cse19) (and .cse0 .cse2 .cse3 .cse4 .cse19 .cse29) (and .cse28 .cse31 .cse0 .cse8 .cse4 .cse32) (and .cse16 .cse8 .cse20 .cse4 .cse30 .cse5) (and .cse33 .cse34 .cse7 .cse8 .cse4 .cse5) (and .cse6 .cse0 .cse24 .cse2 .cse4 .cse11) (and .cse34 .cse0 .cse8 .cse35 .cse4 .cse12) (and .cse15 .cse8 .cse2 .cse3 .cse4 .cse5) (and (or (and .cse16 .cse0 .cse2 .cse27 .cse4) (and .cse16 .cse26 .cse2 .cse4 .cse5)) .cse24) (and .cse8 .cse30 (or (and .cse23 .cse26 .cse4 .cse5) (and .cse23 .cse0 .cse27 .cse4))) (and .cse20 .cse2 .cse3 .cse4 .cse5 .cse29) (and .cse23 .cse33 .cse8 .cse2 .cse4 .cse5) (and .cse16 .cse0 .cse2 .cse4 .cse36 .cse29) (and .cse28 .cse22 .cse37 .cse2 .cse4 .cse5) (and .cse38 .cse0 .cse8 .cse4 .cse5 .cse21) (and (<= ULTIMATE.start_main_~y~0 9) .cse39 .cse5) (and .cse0 .cse8 .cse35 .cse4 .cse36 .cse9) (and .cse13 .cse28 .cse10 .cse2 .cse4 .cse5) (and .cse6 .cse34 .cse0 .cse8 .cse4 .cse11) (and .cse7 .cse0 .cse24 .cse2 .cse4 .cse36) (and .cse28 .cse22 .cse8 .cse4 .cse9 .cse5) (and .cse40 .cse28 .cse2 .cse4 .cse29 .cse41) (and .cse39 .cse42) (and .cse6 .cse38 .cse0 .cse1 .cse2 .cse4) (and .cse26 .cse10 .cse2 .cse3 .cse4 .cse5) (and .cse23 .cse10 .cse20 .cse2 .cse4 .cse5) (and .cse0 .cse2 .cse4 .cse11 .cse43 .cse5) (and .cse2 .cse4 .cse11 .cse44 .cse5 .cse29) (and .cse0 .cse2 .cse35 .cse4 .cse43 .cse19) (and .cse38 .cse10 .cse33 .cse2 .cse4 .cse5) (and (<= 0 (+ ULTIMATE.start_main_~y~0 9)) .cse27 .cse45) (and .cse28 .cse0 .cse8 .cse4 .cse36 .cse21) (and .cse25 .cse6 .cse0 .cse2 .cse35 .cse4) (and .cse8 (or (and .cse26 .cse4 .cse11 .cse5) (and .cse0 .cse27 .cse4 .cse11)) .cse21) (and .cse23 .cse34 .cse0 .cse8 .cse4 .cse5) (and .cse38 .cse0 .cse2 .cse4 .cse12 .cse29) (and .cse34 (or (and .cse16 .cse0 .cse27 .cse4) (and .cse16 .cse26 .cse4 .cse5)) .cse8) (and .cse40 .cse28 .cse8 .cse18 .cse4 .cse41) (and (or (and .cse23 .cse0 .cse8 .cse4 .cse19) (and .cse23 .cse8 .cse20 .cse4 .cse5)) .cse32) (and .cse28 .cse31 .cse10 .cse0 .cse2 .cse4) (and .cse46 .cse0 .cse8 .cse4 .cse32 .cse5) (and .cse40 .cse8 .cse2 .cse35 .cse4 .cse5) (and .cse6 .cse23 .cse0 .cse2 .cse4 .cse29) (and .cse22 .cse24 .cse2 .cse35 .cse4 .cse5) (and .cse47 .cse7 .cse2 .cse4 .cse5 .cse29) (and .cse15 .cse8 .cse35 .cse4 .cse5 .cse21) (and .cse25 .cse7 .cse20 .cse2 .cse4 .cse5) (and .cse38 .cse26 .cse37 .cse2 .cse4 .cse5) (and .cse28 .cse47 .cse1 .cse2 .cse4 .cse5) (and .cse15 .cse16 .cse8 .cse4 .cse32 .cse5) (and .cse25 .cse28 .cse33 .cse2 .cse4 .cse5) (and .cse38 .cse22 .cse2 .cse4 .cse5 .cse29) (and .cse0 .cse8 .cse2 .cse35 .cse4 (<= 0 (+ ULTIMATE.start_main_~x~0 9))) (and .cse22 .cse16 .cse8 .cse2 .cse4 .cse5) (and .cse14 .cse0 .cse1 .cse2 .cse35 .cse4) (and .cse16 .cse1 .cse20 .cse2 .cse4 .cse5) (and .cse28 .cse0 .cse2 .cse4 .cse19) (and .cse37 .cse20 .cse2 .cse4 .cse11 .cse5) (and .cse15 .cse28 .cse48 .cse8 .cse4 .cse5) (and .cse7 .cse0 .cse8 .cse18 .cse49 .cse4) (and .cse25 .cse0 .cse2 .cse27 .cse4 .cse11) (and .cse2 (or (and (or (and .cse46 .cse26 .cse4 .cse5) (and .cse46 .cse0 .cse27 .cse4)) .cse29) (and .cse46 .cse8 .cse20 .cse4 .cse5))) (and .cse20 .cse2 .cse35 .cse4 .cse43 .cse5) (and .cse28 .cse24 .cse2 .cse4 .cse44 .cse5) (and .cse26 .cse7 .cse2 .cse4 .cse43 .cse5) (and .cse25 .cse38 .cse0 .cse2 .cse4 .cse5) (and .cse7 .cse0 .cse1 .cse2 .cse4 .cse12) (and .cse10 .cse7 .cse2 .cse4 .cse44 .cse5) (and .cse6 .cse7 .cse0 .cse37 .cse2 .cse4) (and .cse50 .cse51) (and .cse16 .cse0 .cse37 .cse2 .cse4 .cse5) (and .cse0 .cse8 .cse2 (<= 0 ULTIMATE.start_main_~i~0) .cse4 .cse5) (and .cse16 .cse0 .cse8 .cse4 .cse9 .cse5) (and (or (and .cse26 .cse17 .cse2 .cse4 .cse5) (and .cse0 .cse17 .cse2 .cse27 .cse4)) .cse8) (and .cse15 .cse7 .cse8 .cse4 .cse9 .cse5) (and .cse25 .cse15 .cse2 .cse35 .cse4 .cse5) (and .cse22 .cse10 .cse2 .cse4 .cse11 .cse5) (and .cse7 .cse0 .cse2 .cse4 .cse5 .cse42) (and .cse0 .cse8 .cse4 .cse11 .cse30 .cse36) (and .cse47 .cse7 .cse8 .cse18 .cse4 .cse5) (and (or (and .cse26 .cse3 .cse4 .cse5) (and .cse0 .cse3 .cse27 .cse4)) .cse8 .cse32) (and .cse16 .cse33 .cse8 .cse18 .cse4 .cse5) (and .cse23 .cse10 .cse0 .cse2 .cse4 .cse19) (and .cse28 .cse33 .cse8 .cse4 .cse5 .cse21) (and .cse38 .cse14 .cse0 .cse8 .cse2 .cse4) (and .cse22 .cse8 .cse4 .cse11 .cse32 .cse5) (and .cse15 .cse24 .cse2 .cse4 .cse11 .cse5) (and .cse10 .cse0 .cse2 .cse3 .cse27 .cse4) (and .cse38 .cse0 .cse37 .cse2 .cse27 .cse4) (and .cse7 .cse0 .cse2 .cse49 .cse4 .cse29) (and .cse46 .cse0 .cse8 .cse2 .cse4 .cse19) (and .cse33 .cse37 .cse2 .cse35 .cse4 .cse5) (and .cse22 .cse7 .cse8 .cse4 .cse30 .cse5) (and .cse6 .cse23 .cse0 .cse8 .cse18 .cse4) (and .cse38 .cse0 .cse8 .cse4 .cse32 .cse36) (and .cse6 .cse28 .cse48 .cse0 .cse8 .cse4) (and .cse28 .cse0 .cse37 .cse2 .cse4 .cse12) (and .cse38 .cse8 .cse2 .cse4 .cse44 .cse5) (and .cse6 .cse38 .cse0 .cse8 .cse4 .cse30) (and .cse50 .cse45) (and .cse18 (or (and .cse46 .cse0 .cse8 .cse27 .cse4) (and .cse46 .cse26 .cse8 .cse4 .cse5))) (and .cse28 .cse14 .cse34 .cse0 .cse8 .cse4) (and .cse6 .cse28 .cse0 .cse2 .cse4 .cse43) (and .cse0 .cse37 .cse2 .cse4 .cse11 .cse19) (and .cse7 .cse8 .cse4 .cse32 .cse44 .cse5) (and .cse7 .cse0 .cse8 .cse4 .cse30 .cse12) (and .cse13 .cse28 .cse8 .cse4 .cse32 .cse5) (and (or (and .cse0 .cse8 .cse3 .cse4 .cse19) (and .cse8 .cse20 .cse3 .cse4 .cse5)) .cse18) (and .cse23 .cse0 .cse8 .cse2 .cse4 .cse36) (and .cse0 .cse37 .cse2 .cse35 .cse4 .cse36) (and .cse46 .cse10 .cse0 .cse2 .cse4 .cse5) (and .cse0 .cse24 .cse2 .cse35 .cse4 .cse12) (and .cse38 .cse0 .cse24 .cse2 .cse4 .cse19) (and .cse33 .cse8 .cse35 .cse4 .cse9 .cse5) (and .cse0 .cse8 .cse2 .cse49 .cse4 .cse11) (and .cse15 .cse34 .cse8 .cse4 .cse11 .cse5) (and .cse47 .cse8 .cse2 .cse4 .cse11 .cse5) (and .cse15 .cse28 .cse2 .cse4 .cse43 .cse5) (and .cse8 .cse18 .cse4 .cse11 .cse44 .cse5) (and .cse10 .cse47 .cse2 .cse35 .cse4 .cse5) (and .cse15 .cse38 .cse1 .cse2 .cse4 .cse5) (and .cse15 .cse38 .cse8 .cse4 .cse30 .cse5) (and .cse0 .cse8 .cse49 .cse35 .cse4 .cse32) (and .cse22 .cse34 .cse8 .cse35 .cse4 .cse5) (and (<= 0 (+ ULTIMATE.start_main_~y~0 8)) .cse51 .cse5) (and .cse7 .cse0 .cse2 .cse27 .cse4 .cse43) (and .cse6 .cse16 .cse0 .cse8 .cse4 .cse32) (and .cse50 .cse0 .cse8 .cse4 .cse11 .cse5) (and .cse47 .cse8 .cse35 .cse4 .cse32 .cse5) (and .cse25 .cse28 .cse0 .cse2 .cse4 .cse36) (and .cse28 .cse8 .cse2 .cse4 .cse41) (and .cse31 .cse0 .cse2 .cse35 .cse4 .cse29) (and .cse15 .cse23 .cse2 .cse4 .cse5 .cse29) (and .cse38 .cse0 .cse8 .cse18 .cse4 .cse12) (and .cse6 .cse0 .cse8 .cse35 .cse4 .cse21) (and .cse10 .cse0 .cse2 .cse49 .cse35 .cse4) (and .cse16 .cse33 .cse2 .cse4 .cse5 .cse29) (and .cse14 .cse7 .cse0 .cse8 .cse4 .cse32) (and .cse28 .cse20 .cse2 .cse4 .cse5) (and .cse13 .cse8 .cse18 .cse35 .cse4 .cse5) (and .cse34 .cse7 .cse0 .cse8 .cse4 .cse36) (and .cse16 .cse0 .cse8 .cse2 .cse4 .cse12) (and .cse28 .cse0 .cse8 .cse4 .cse12 .cse9) (and .cse38 .cse34 .cse8 .cse20 .cse4 .cse5) (and .cse38 .cse34 .cse0 .cse8 .cse4 .cse19) (and .cse38 .cse24 .cse20 .cse2 .cse4 .cse5) (and .cse25 .cse7 .cse0 .cse2 .cse4 .cse19) (and .cse33 .cse7 .cse24 .cse2 .cse4 .cse5) (and .cse13 .cse2 .cse35 .cse4 .cse5 .cse29) (and .cse14 .cse0 .cse8 .cse35 .cse4 .cse30) (and .cse1 .cse2 .cse35 .cse4 .cse44 .cse5) (and .cse8 (or (and .cse38 .cse26 .cse4 .cse5) (and .cse38 .cse0 .cse27 .cse4)) .cse9) (and .cse0 .cse8 .cse4 .cse11 .cse32 .cse12) (and .cse28 .cse0 .cse1 .cse2 .cse49 .cse4) (and .cse15 .cse23 .cse8 .cse18 .cse4 .cse5) (and .cse33 .cse1 .cse2 .cse4 .cse11 .cse5) (and .cse14 .cse0 .cse2 .cse4 .cse11 .cse29) (and .cse38 .cse22 .cse8 .cse18 .cse4 .cse5) (and .cse31 .cse7 .cse0 .cse8 .cse2 .cse4) (and .cse16 .cse0 .cse1 .cse2 .cse4 .cse19) (and .cse28 .cse0 .cse8 .cse49 .cse4 .cse30) (and .cse16 .cse0 .cse8 .cse18 .cse4 .cse36) (and .cse38 .cse10 .cse0 .cse2 .cse4 .cse36) (and .cse0 .cse1 .cse2 .cse4 .cse11 .cse36) (and .cse33 .cse8 .cse4 .cse11 .cse30 .cse5) (and .cse0 .cse8 .cse3 .cse4 .cse30 .cse5) (and (or (and .cse8 .cse20 .cse4 .cse11 .cse5) (and .cse0 .cse8 .cse4 .cse11 .cse19)) .cse9) (and .cse14 .cse0 .cse8 .cse18 .cse4 .cse11) (and .cse6 .cse0 .cse8 .cse2 .cse3 .cse4) (and .cse31 .cse0 .cse8 .cse18 .cse35 .cse4) (and .cse28 .cse47 .cse8 .cse4 .cse30 .cse5) (and .cse8 .cse35 .cse4 .cse30 .cse44 .cse5) (and .cse15 .cse7 .cse37 .cse2 .cse4 .cse5) (and .cse28 .cse34 .cse8 .cse4 .cse44 .cse5) (and .cse38 .cse33 .cse8 .cse4 .cse32 .cse5)))) [2021-08-27 10:56:18,991 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-08-27 10:56:18,994 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 10:56:19,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 10:56:19 BoogieIcfgContainer [2021-08-27 10:56:19,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 10:56:19,049 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 10:56:19,049 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 10:56:19,049 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 10:56:19,049 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:53:58" (3/4) ... [2021-08-27 10:56:19,051 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-27 10:56:19,057 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-08-27 10:56:19,057 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-27 10:56:19,086 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 10:56:19,086 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 10:56:19,087 INFO L168 Benchmark]: Toolchain (without parser) took 141197.20 ms. Allocated memory was 62.9 MB in the beginning and 4.5 GB in the end (delta: 4.4 GB). Free memory was 44.0 MB in the beginning and 2.9 GB in the end (delta: -2.9 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.1 GB. [2021-08-27 10:56:19,087 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 62.9 MB. Free memory is still 44.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 10:56:19,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 110.22 ms. Allocated memory is still 62.9 MB. Free memory was 43.8 MB in the beginning and 35.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 10:56:19,088 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.84 ms. Allocated memory is still 62.9 MB. Free memory was 35.2 MB in the beginning and 47.6 MB in the end (delta: -12.3 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. [2021-08-27 10:56:19,088 INFO L168 Benchmark]: Boogie Preprocessor took 24.37 ms. Allocated memory is still 62.9 MB. Free memory was 47.6 MB in the beginning and 46.7 MB in the end (delta: 885.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 10:56:19,089 INFO L168 Benchmark]: RCFGBuilder took 279.37 ms. Allocated memory is still 62.9 MB. Free memory was 46.7 MB in the beginning and 34.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 10:56:19,089 INFO L168 Benchmark]: TraceAbstraction took 140716.89 ms. Allocated memory was 62.9 MB in the beginning and 4.5 GB in the end (delta: 4.4 GB). Free memory was 34.4 MB in the beginning and 2.9 GB in the end (delta: -2.9 GB). Peak memory consumption was 3.1 GB. Max. memory is 16.1 GB. [2021-08-27 10:56:19,089 INFO L168 Benchmark]: Witness Printer took 37.88 ms. Allocated memory is still 4.5 GB. Free memory was 2.9 GB in the beginning and 2.9 GB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-08-27 10:56:19,091 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 62.9 MB. Free memory is still 44.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 110.22 ms. Allocated memory is still 62.9 MB. Free memory was 43.8 MB in the beginning and 35.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 22.84 ms. Allocated memory is still 62.9 MB. Free memory was 35.2 MB in the beginning and 47.6 MB in the end (delta: -12.3 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.37 ms. Allocated memory is still 62.9 MB. Free memory was 47.6 MB in the beginning and 46.7 MB in the end (delta: 885.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 279.37 ms. Allocated memory is still 62.9 MB. Free memory was 46.7 MB in the beginning and 34.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 140716.89 ms. Allocated memory was 62.9 MB in the beginning and 4.5 GB in the end (delta: 4.4 GB). Free memory was 34.4 MB in the beginning and 2.9 GB in the end (delta: -2.9 GB). Peak memory consumption was 3.1 GB. Max. memory is 16.1 GB. * Witness Printer took 37.88 ms. Allocated memory is still 4.5 GB. Free memory was 2.9 GB in the beginning and 2.9 GB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 140619.7ms, OverallIterations: 47, TraceHistogramMax: 11, EmptinessCheckTime: 99.2ms, AutomataDifference: 6091.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 99161.6ms, InitialAbstractionConstructionTime: 6.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1238 SDtfs, 6000 SDslu, 4376 SDs, 0 SdLazy, 1247 SolverSat, 1006 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1131.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2150 GetRequests, 1898 SyntacticMatches, 1 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1065.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=55733occurred in iteration=40, InterpolantAutomatonStates: 333, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 7827.1ms AutomataMinimizationTime, 47 MinimizatonAttempts, 130567 StatesRemovedByMinimization, 41 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 1768 NumberOfFragments, 4369 HoareAnnotationTreeSize, 2 FomulaSimplifications, 56416 FormulaSimplificationTreeSizeReduction, 15641.1ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 66451 FormulaSimplificationTreeSizeReductionInter, 83499.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 126.6ms SsaConstructionTime, 690.7ms SatisfiabilityAnalysisTime, 7559.6ms InterpolantComputationTime, 3989 NumberOfCodeBlocks, 3981 NumberOfCodeBlocksAsserted, 179 NumberOfCheckSat, 3903 ConstructedInterpolants, 0 QuantifiedInterpolants, 15175 SizeOfPredicates, 3 NumberOfNonLiveVariables, 4492 ConjunctsInSsa, 271 ConjunctsInUnsatCore, 86 InterpolantComputations, 9 PerfectInterpolantSequences, 429/11840 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((x <= 0 && y <= 3) && 0 <= y) && 3 <= i) && N <= 10) && 0 <= x) || (((((0 <= x + 3 && 8 <= i) && x <= 0) && y <= 0) && N <= 10) && 0 <= y + 5)) || (((((y <= 2 && x <= 0) && 0 <= y) && N <= 10) && 7 <= i) && 0 <= x + 5)) || (((((x <= 8 && 8 <= i) && y <= 0) && 0 <= y) && N <= 10) && 0 <= x)) || (((((0 <= x + 6 && y <= 2) && 8 <= i) && x <= 0) && 0 <= y) && N <= 10)) || (((((x <= 3 && 5 <= i) && y <= 2) && 0 <= y) && N <= 10) && 0 <= x)) || (((((x <= 0 && y <= 0) && 1 <= i) && 0 <= y + 1) && N <= 10) && 0 <= x)) || ((y <= 0 && ((((8 <= i && x <= 0) && N <= 10) && 0 <= x + 2) || (((8 <= i && x <= 2) && N <= 10) && 0 <= x))) && 0 <= y + 6)) || (((((x <= 5 && 8 <= i) && y <= 3) && 0 <= y) && N <= 10) && 0 <= x)) || (((((4 <= i && x <= 0) && y <= 4) && 0 <= y) && N <= 10) && 0 <= x)) || (((((y <= 6 && x <= 1) && 0 <= y) && N <= 10) && 7 <= i) && 0 <= x)) || (y <= 3 && (((((4 <= i && x <= 1) && 0 <= y) && N <= 10) && 0 <= x) || ((((4 <= i && x <= 0) && 0 <= y) && 0 <= x + 1) && N <= 10)))) || (((((10 <= i && 0 <= x + 6) && x <= 0) && y <= 4) && 0 <= y) && N <= 10)) || (((((0 <= x + 3 && 5 <= i) && y <= 2) && x <= 0) && 0 <= y) && N <= 10)) || (((((x <= 0 && 1 <= i) && 0 <= y) && N <= 10) && 0 <= x) && y <= 1)) || (((((5 <= i && x <= 0) && y <= 0) && N <= 10) && 0 <= y + 3) && 0 <= x + 2)) || (((((x <= 0 && 0 <= y) && 3 <= i) && N <= 10) && 0 <= x + 2) && y <= 1)) || (((((10 <= i && 0 <= x + 8) && x <= 0) && y <= 0) && N <= 10) && 0 <= y + 2)) || (((((5 <= i && y <= 0) && x <= 2) && N <= 10) && 0 <= y + 3) && 0 <= x)) || (((((x <= 4 && 0 <= y + 4) && 8 <= i) && y <= 0) && N <= 10) && 0 <= x)) || (((((0 <= x + 3 && x <= 0) && y <= 4) && 0 <= y) && N <= 10) && 7 <= i)) || (((((0 <= y + 4 && x <= 0) && y <= 0) && 9 <= i) && N <= 10) && 0 <= x + 5)) || (((((x <= 3 && y <= 0) && 0 <= y) && 3 <= i) && N <= 10) && 0 <= x)) || ((((((5 <= i && x <= 0) && 0 <= y) && 0 <= x + 1) && N <= 10) || ((((5 <= i && x <= 1) && 0 <= y) && N <= 10) && 0 <= x)) && y <= 4)) || ((y <= 0 && 0 <= y + 3) && ((((4 <= i && x <= 1) && N <= 10) && 0 <= x) || (((4 <= i && x <= 0) && 0 <= x + 1) && N <= 10)))) || (((((x <= 2 && 0 <= y) && 3 <= i) && N <= 10) && 0 <= x) && y <= 1)) || (((((4 <= i && x <= 4) && y <= 0) && 0 <= y) && N <= 10) && 0 <= x)) || (((((5 <= i && x <= 0) && 0 <= y) && N <= 10) && 0 <= x + 4) && y <= 1)) || (((((10 <= i && x <= 5) && y <= 5) && 0 <= y) && N <= 10) && 0 <= x)) || (((((6 <= i && x <= 0) && y <= 0) && N <= 10) && 0 <= x) && 0 <= y + 6)) || ((y <= 9 && (((((x <= 1 && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x) || ((((x <= 0 && 0 <= y) && 0 <= x + 1) && 9 <= i) && N <= 10))) && 0 <= x)) || (((((x <= 0 && y <= 0) && 9 <= i) && N <= 10) && 0 <= x + 4) && 0 <= y + 5)) || (((((x <= 8 && 10 <= i) && y <= 2) && 0 <= y) && N <= 10) && 0 <= x)) || (((((0 <= x + 3 && 0 <= y + 4) && x <= 0) && y <= 0) && N <= 10) && 7 <= i)) || (((((8 <= i && x <= 0) && y <= 4) && 0 <= y) && N <= 10) && 0 <= x + 4)) || (((((10 <= i && x <= 5) && y <= 0) && N <= 10) && 0 <= y + 5) && 0 <= x)) || (((((x <= 9 && 10 <= i) && 0 <= y) && N <= 10) && y <= 1) && 0 <= x + 2147483648)) || ((((((x <= 1 && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x) || ((((x <= 0 && 0 <= y) && 0 <= x + 1) && 9 <= i) && N <= 10)) && y <= 8)) || (((((0 <= x + 3 && 6 <= i) && x <= 0) && y <= 3) && 0 <= y) && N <= 10)) || (((((x <= 1 && y <= 2) && 0 <= y) && 3 <= i) && N <= 10) && 0 <= x)) || (((((4 <= i && y <= 2) && x <= 2) && 0 <= y) && N <= 10) && 0 <= x)) || (((((x <= 0 && 0 <= y) && N <= 10) && 7 <= i) && y <= 7) && 0 <= x)) || (((((0 <= y && N <= 10) && 7 <= i) && x <= 6) && 0 <= x) && y <= 1)) || (((((x <= 0 && 0 <= y) && 9 <= i) && N <= 10) && y <= 7) && 0 <= x + 2)) || (((((6 <= i && y <= 2) && x <= 4) && 0 <= y) && N <= 10) && 0 <= x)) || ((0 <= y + 9 && 0 <= x + 1) && ((((((0 <= y + 2147483648 && x <= 0) && y <= 0) && 9 <= i) && N <= 10) && 0 <= x + 2) || (((((0 <= y + 2147483648 && y <= 0) && x <= 2) && 9 <= i) && N <= 10) && 0 <= x)))) || (((((10 <= i && x <= 0) && y <= 0) && N <= 10) && 0 <= x + 4) && 0 <= y + 6)) || (((((y <= 6 && 0 <= x + 3) && x <= 0) && 0 <= y) && 9 <= i) && N <= 10)) || ((y <= 0 && ((((x <= 1 && N <= 10) && 7 <= i) && 0 <= x) || (((x <= 0 && 0 <= x + 1) && N <= 10) && 7 <= i))) && 0 <= y + 6)) || (((((4 <= i && 0 <= y + 4) && x <= 0) && y <= 0) && N <= 10) && 0 <= x)) || (((((6 <= i && x <= 0) && 0 <= y) && N <= 10) && 0 <= x + 5) && y <= 1)) || ((0 <= y + 4 && ((((5 <= i && x <= 0) && 0 <= x + 1) && N <= 10) || (((5 <= i && x <= 1) && N <= 10) && 0 <= x))) && y <= 0)) || (((((x <= 9 && 10 <= i) && y <= 0) && 0 <= y + 1) && N <= 10) && 0 <= x + 2147483648)) || ((((((4 <= i && x <= 0) && y <= 0) && N <= 10) && 0 <= x + 2) || ((((4 <= i && y <= 0) && x <= 2) && N <= 10) && 0 <= x)) && 0 <= y + 2)) || (((((10 <= i && 0 <= x + 8) && y <= 2) && x <= 0) && 0 <= y) && N <= 10)) || (((((2 <= i && x <= 0) && y <= 0) && N <= 10) && 0 <= y + 2) && 0 <= x)) || (((((x <= 9 && y <= 0) && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x)) || (((((0 <= x + 3 && 4 <= i) && x <= 0) && 0 <= y) && N <= 10) && y <= 1)) || (((((x <= 5 && y <= 4) && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x)) || (((((x <= 7 && 8 <= i) && 0 <= y) && N <= 10) && 0 <= x) && y <= 1)) || (((((x <= 3 && y <= 0) && 9 <= i) && N <= 10) && 0 <= x) && 0 <= y + 6)) || (((((y <= 6 && 8 <= i) && x <= 2) && 0 <= y) && N <= 10) && 0 <= x)) || (((((6 <= i && x <= 1) && y <= 5) && 0 <= y) && N <= 10) && 0 <= x)) || (((((10 <= i && x <= 7) && y <= 3) && 0 <= y) && N <= 10) && 0 <= x)) || (((((x <= 3 && 5 <= i) && y <= 0) && N <= 10) && 0 <= y + 2) && 0 <= x)) || (((((y <= 6 && 10 <= i) && x <= 4) && 0 <= y) && N <= 10) && 0 <= x)) || (((((6 <= i && x <= 5) && 0 <= y) && N <= 10) && 0 <= x) && y <= 1)) || (((((x <= 0 && y <= 0) && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x + 9)) || (((((x <= 5 && 5 <= i) && y <= 0) && 0 <= y) && N <= 10) && 0 <= x)) || (((((0 <= x + 6 && x <= 0) && y <= 3) && 0 <= y) && 9 <= i) && N <= 10)) || (((((5 <= i && y <= 3) && x <= 2) && 0 <= y) && N <= 10) && 0 <= x)) || ((((10 <= i && x <= 0) && 0 <= y) && N <= 10) && 0 <= x + 2)) || (((((y <= 5 && x <= 2) && 0 <= y) && N <= 10) && 7 <= i) && 0 <= x)) || (((((x <= 3 && 10 <= i) && 0 <= y + 2147483648) && y <= 0) && N <= 10) && 0 <= x)) || (((((8 <= i && x <= 0) && y <= 0) && 0 <= y + 1) && 0 <= x + 7) && N <= 10)) || (((((y <= 6 && x <= 0) && 0 <= y) && 0 <= x + 1) && N <= 10) && 7 <= i)) || (0 <= y && ((((((2 <= i && x <= 1) && N <= 10) && 0 <= x) || (((2 <= i && x <= 0) && 0 <= x + 1) && N <= 10)) && y <= 1) || ((((2 <= i && y <= 0) && x <= 2) && N <= 10) && 0 <= x)))) || (((((x <= 2 && 0 <= y) && 9 <= i) && N <= 10) && y <= 7) && 0 <= x)) || (((((10 <= i && y <= 4) && 0 <= y) && N <= 10) && x <= 6) && 0 <= x)) || (((((x <= 1 && 8 <= i) && 0 <= y) && N <= 10) && y <= 7) && 0 <= x)) || (((((y <= 6 && 6 <= i) && x <= 0) && 0 <= y) && N <= 10) && 0 <= x)) || (((((8 <= i && x <= 0) && y <= 3) && 0 <= y) && N <= 10) && 0 <= x + 5)) || (((((y <= 2 && 8 <= i) && 0 <= y) && N <= 10) && x <= 6) && 0 <= x)) || (((((0 <= x + 3 && 8 <= i) && x <= 0) && y <= 5) && 0 <= y) && N <= 10)) || (0 <= y + 7 && ((((((x <= 1 && 0 <= y + 2147483648) && 8 <= i) && y <= 0) && N <= 10) && 0 <= x) || (((((0 <= y + 2147483648 && 8 <= i) && x <= 0) && y <= 0) && 0 <= x + 1) && N <= 10)))) || (((((5 <= i && x <= 0) && y <= 5) && 0 <= y) && N <= 10) && 0 <= x)) || (((((x <= 0 && y <= 0) && 0 <= y) && 0 <= i) && N <= 10) && 0 <= x)) || (((((5 <= i && x <= 0) && y <= 0) && N <= 10) && 0 <= y + 5) && 0 <= x)) || ((((((x <= 1 && 1 <= i) && 0 <= y) && N <= 10) && 0 <= x) || ((((x <= 0 && 1 <= i) && 0 <= y) && 0 <= x + 1) && N <= 10)) && y <= 0)) || (((((x <= 3 && 8 <= i) && y <= 0) && N <= 10) && 0 <= y + 5) && 0 <= x)) || (((((y <= 6 && x <= 3) && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x)) || (((((x <= 5 && y <= 2) && 0 <= y) && N <= 10) && 7 <= i) && 0 <= x)) || (((((8 <= i && x <= 0) && 0 <= y) && N <= 10) && 0 <= x) && y <= 8)) || (((((x <= 0 && y <= 0) && N <= 10) && 7 <= i) && 0 <= y + 3) && 0 <= x + 4)) || (((((x <= 7 && 8 <= i) && y <= 0) && 0 <= y + 1) && N <= 10) && 0 <= x)) || ((((((x <= 1 && 3 <= i) && N <= 10) && 0 <= x) || (((x <= 0 && 3 <= i) && 0 <= x + 1) && N <= 10)) && y <= 0) && 0 <= y + 2)) || (((((5 <= i && x <= 4) && y <= 0) && 0 <= y + 1) && N <= 10) && 0 <= x)) || (((((4 <= i && y <= 2) && x <= 0) && 0 <= y) && N <= 10) && 0 <= x + 2)) || (((((10 <= i && x <= 4) && y <= 0) && N <= 10) && 0 <= x) && 0 <= y + 6)) || (((((6 <= i && 0 <= x + 6) && x <= 0) && y <= 0) && 0 <= y) && N <= 10)) || (((((x <= 5 && y <= 0) && N <= 10) && 7 <= i) && 0 <= y + 2) && 0 <= x)) || (((((x <= 3 && y <= 4) && 0 <= y) && N <= 10) && 7 <= i) && 0 <= x)) || (((((y <= 2 && x <= 0) && 0 <= y) && 3 <= i) && 0 <= x + 1) && N <= 10)) || (((((6 <= i && x <= 0) && y <= 5) && 0 <= y) && 0 <= x + 1) && N <= 10)) || (((((8 <= i && x <= 0) && 0 <= y) && 0 <= x + 7) && N <= 10) && y <= 1)) || (((((2 <= i && x <= 0) && y <= 0) && 0 <= y) && N <= 10) && 0 <= x + 2)) || (((((x <= 4 && y <= 5) && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x)) || (((((x <= 5 && 8 <= i) && y <= 0) && N <= 10) && 0 <= y + 3) && 0 <= x)) || (((((0 <= x + 3 && 4 <= i) && x <= 0) && y <= 0) && 0 <= y + 1) && N <= 10)) || (((((6 <= i && x <= 0) && y <= 0) && N <= 10) && 0 <= y + 2) && 0 <= x + 4)) || (((((0 <= x + 3 && 10 <= i) && 0 <= y + 2147483648) && x <= 0) && y <= 0) && N <= 10)) || (((((10 <= i && x <= 0) && y <= 5) && 0 <= y) && N <= 10) && 0 <= x + 5)) || (((((6 <= i && y <= 0) && 0 <= y) && N <= 10) && x <= 6) && 0 <= x)) || (((((0 <= x + 3 && 6 <= i) && x <= 0) && y <= 0) && N <= 10) && 0 <= y + 3)) || (0 <= y + 7 && ((((((0 <= y + 2147483648 && x <= 0) && y <= 0) && 9 <= i) && N <= 10) && 0 <= x + 2) || (((((0 <= y + 2147483648 && y <= 0) && x <= 2) && 9 <= i) && N <= 10) && 0 <= x)))) || (0 <= y + 1 && (((((2 <= i && x <= 0) && y <= 0) && 0 <= x + 1) && N <= 10) || ((((2 <= i && x <= 1) && y <= 0) && N <= 10) && 0 <= x)))) || (((((10 <= i && 0 <= x + 6) && 0 <= y + 4) && x <= 0) && y <= 0) && N <= 10)) || (((((0 <= x + 3 && 10 <= i) && x <= 0) && 0 <= y) && N <= 10) && y <= 7)) || (((((x <= 0 && y <= 5) && 0 <= y) && N <= 10) && 7 <= i) && 0 <= x + 2)) || (((((8 <= i && y <= 0) && N <= 10) && 0 <= y + 2) && x <= 6) && 0 <= x)) || (((((8 <= i && x <= 0) && y <= 0) && N <= 10) && 0 <= y + 3) && 0 <= x + 5)) || (((((x <= 8 && 10 <= i) && y <= 0) && N <= 10) && 0 <= y + 2) && 0 <= x)) || ((((((x <= 0 && y <= 0) && 3 <= i) && N <= 10) && 0 <= x + 2) || ((((y <= 0 && x <= 2) && 3 <= i) && N <= 10) && 0 <= x)) && 0 <= y + 1)) || (((((4 <= i && x <= 0) && y <= 0) && 0 <= y) && N <= 10) && 0 <= x + 4)) || (((((x <= 0 && y <= 5) && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x + 4)) || (((((2 <= i && y <= 2) && x <= 0) && 0 <= y) && N <= 10) && 0 <= x)) || (((((x <= 0 && y <= 4) && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x + 5)) || (((((6 <= i && x <= 0) && y <= 4) && 0 <= y) && N <= 10) && 0 <= x + 2)) || (((((x <= 4 && y <= 0) && 9 <= i) && N <= 10) && 0 <= y + 5) && 0 <= x)) || (((((x <= 0 && y <= 0) && 0 <= y) && 0 <= x + 7) && N <= 10) && 7 <= i)) || (((((x <= 3 && 0 <= y + 4) && y <= 0) && N <= 10) && 7 <= i) && 0 <= x)) || (((((x <= 7 && y <= 0) && 0 <= y) && N <= 10) && 7 <= i) && 0 <= x)) || (((((x <= 3 && 10 <= i) && 0 <= y) && N <= 10) && y <= 7) && 0 <= x)) || (((((y <= 0 && 0 <= y + 1) && N <= 10) && 7 <= i) && x <= 6) && 0 <= x)) || (((((y <= 2 && x <= 7) && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x)) || (((((x <= 3 && 6 <= i) && y <= 3) && 0 <= y) && N <= 10) && 0 <= x)) || (((((x <= 3 && 6 <= i) && y <= 0) && N <= 10) && 0 <= y + 3) && 0 <= x)) || (((((x <= 0 && y <= 0) && 0 <= x + 7) && 9 <= i) && N <= 10) && 0 <= y + 2)) || (((((x <= 5 && 0 <= y + 4) && y <= 0) && 9 <= i) && N <= 10) && 0 <= x)) || ((0 <= y + 8 && ((((((x <= 1 && 0 <= y + 2147483648) && 8 <= i) && y <= 0) && N <= 10) && 0 <= x) || (((((0 <= y + 2147483648 && 8 <= i) && x <= 0) && y <= 0) && 0 <= x + 1) && N <= 10))) && 0 <= x)) || (((((8 <= i && x <= 0) && 0 <= y) && 0 <= x + 1) && N <= 10) && y <= 7)) || (((((0 <= x + 3 && 5 <= i) && x <= 0) && y <= 0) && N <= 10) && 0 <= y + 2)) || (((((0 <= y + 7 && x <= 0) && y <= 0) && N <= 10) && 7 <= i) && 0 <= x)) || (((((x <= 7 && y <= 0) && 9 <= i) && N <= 10) && 0 <= y + 2) && 0 <= x)) || (((((y <= 6 && 10 <= i) && x <= 0) && 0 <= y) && N <= 10) && 0 <= x + 4)) || ((((10 <= i && y <= 0) && 0 <= y) && N <= 10) && 0 <= x + 2147483648)) || (((((0 <= x + 8 && x <= 0) && 0 <= y) && 9 <= i) && N <= 10) && y <= 1)) || (((((x <= 3 && 4 <= i) && 0 <= y) && N <= 10) && 0 <= x) && y <= 1)) || (((((6 <= i && x <= 0) && y <= 0) && 0 <= y + 1) && N <= 10) && 0 <= x + 5)) || (((((0 <= x + 3 && x <= 0) && y <= 0) && 9 <= i) && N <= 10) && 0 <= y + 6)) || (((((y <= 2 && x <= 0) && 0 <= y) && 0 <= x + 7) && 9 <= i) && N <= 10)) || (((((5 <= i && x <= 4) && 0 <= y) && N <= 10) && 0 <= x) && y <= 1)) || (((((0 <= x + 6 && 8 <= i) && x <= 0) && y <= 0) && N <= 10) && 0 <= y + 2)) || ((((10 <= i && x <= 2) && 0 <= y) && N <= 10) && 0 <= x)) || (((((x <= 8 && y <= 0) && 0 <= y + 1) && 9 <= i) && N <= 10) && 0 <= x)) || (((((0 <= y + 4 && 8 <= i) && x <= 0) && y <= 0) && N <= 10) && 0 <= x + 4)) || (((((5 <= i && x <= 0) && y <= 0) && 0 <= y) && N <= 10) && 0 <= x + 5)) || (((((10 <= i && x <= 0) && y <= 0) && N <= 10) && 0 <= x + 5) && 0 <= y + 5)) || (((((6 <= i && 0 <= y + 4) && y <= 0) && x <= 2) && N <= 10) && 0 <= x)) || (((((6 <= i && 0 <= y + 4) && x <= 0) && y <= 0) && N <= 10) && 0 <= x + 2)) || (((((6 <= i && y <= 4) && x <= 2) && 0 <= y) && N <= 10) && 0 <= x)) || (((((y <= 6 && 8 <= i) && x <= 0) && 0 <= y) && N <= 10) && 0 <= x + 2)) || (((((x <= 4 && 8 <= i) && y <= 4) && 0 <= y) && N <= 10) && 0 <= x)) || (((((x <= 8 && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x) && y <= 1)) || (((((0 <= x + 6 && x <= 0) && y <= 0) && 9 <= i) && N <= 10) && 0 <= y + 3)) || (((((y <= 3 && 0 <= y) && 9 <= i) && N <= 10) && x <= 6) && 0 <= x)) || ((y <= 0 && ((((6 <= i && x <= 1) && N <= 10) && 0 <= x) || (((6 <= i && x <= 0) && 0 <= x + 1) && N <= 10))) && 0 <= y + 5)) || (((((x <= 0 && y <= 0) && N <= 10) && 7 <= i) && 0 <= y + 2) && 0 <= x + 5)) || (((((10 <= i && x <= 0) && y <= 3) && 0 <= y) && 0 <= x + 7) && N <= 10)) || (((((x <= 3 && 4 <= i) && y <= 0) && 0 <= y + 1) && N <= 10) && 0 <= x)) || (((((x <= 4 && y <= 3) && 0 <= y) && N <= 10) && 7 <= i) && 0 <= x)) || (((((0 <= x + 6 && x <= 0) && 0 <= y) && N <= 10) && 7 <= i) && y <= 1)) || (((((6 <= i && x <= 5) && y <= 0) && 0 <= y + 1) && N <= 10) && 0 <= x)) || (((((0 <= x + 8 && 8 <= i) && x <= 0) && y <= 0) && 0 <= y) && N <= 10)) || (((((5 <= i && x <= 0) && y <= 3) && 0 <= y) && N <= 10) && 0 <= x + 2)) || (((((10 <= i && x <= 0) && y <= 0) && 0 <= x + 7) && N <= 10) && 0 <= y + 3)) || (((((5 <= i && x <= 0) && y <= 0) && 0 <= y + 1) && N <= 10) && 0 <= x + 4)) || (((((6 <= i && y <= 2) && x <= 0) && 0 <= y) && N <= 10) && 0 <= x + 4)) || (((((x <= 0 && y <= 3) && 0 <= y) && N <= 10) && 7 <= i) && 0 <= x + 4)) || (((((x <= 4 && y <= 0) && N <= 10) && 7 <= i) && 0 <= y + 3) && 0 <= x)) || (((((x <= 0 && y <= 0) && 3 <= i) && N <= 10) && 0 <= y + 3) && 0 <= x)) || ((((((y <= 0 && x <= 2) && N <= 10) && 7 <= i) && 0 <= x) || ((((x <= 0 && y <= 0) && N <= 10) && 7 <= i) && 0 <= x + 2)) && 0 <= y + 5)) || (((((0 <= x + 6 && x <= 0) && y <= 0) && 0 <= y + 1) && N <= 10) && 7 <= i)) || (((((0 <= x + 3 && x <= 0) && y <= 0) && 0 <= y) && 3 <= i) && N <= 10)) || (((((0 <= x + 8 && x <= 0) && y <= 0) && 0 <= y + 1) && 9 <= i) && N <= 10)) || (((((10 <= i && x <= 7) && y <= 0) && N <= 10) && 0 <= y + 3) && 0 <= x)) || (((((y <= 0 && 9 <= i) && N <= 10) && 0 <= y + 3) && x <= 6) && 0 <= x)) || (((((x <= 3 && 8 <= i) && y <= 5) && 0 <= y) && N <= 10) && 0 <= x)) || (((((10 <= i && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 6) && 0 <= x)) || (((((6 <= i && x <= 4) && y <= 0) && N <= 10) && 0 <= y + 2) && 0 <= x) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-08-27 10:56:19,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...