/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/reducercommutativity/avg20-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:52:17,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:52:17,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:52:17,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 14:52:17,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 14:52:17,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 14:52:17,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 14:52:17,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 14:52:17,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 14:52:17,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 14:52:17,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 14:52:17,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 14:52:17,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:52:17,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:52:17,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:52:17,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:52:17,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:52:17,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:52:17,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:52:17,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:52:17,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:52:17,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:52:17,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:52:17,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:52:17,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 14:52:17,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 14:52:17,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 14:52:17,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 14:52:17,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 14:52:17,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 14:52:17,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 14:52:17,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 14:52:17,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 14:52:17,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:52:17,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:52:17,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:52:17,875 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 14:52:17,904 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:52:17,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:52:17,905 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:52:17,905 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:52:17,906 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:52:17,907 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:52:17,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:52:17,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:52:17,908 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:52:17,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:52:17,909 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:52:17,909 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:52:17,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:52:17,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:52:17,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:52:17,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:52:17,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:52:17,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:52:17,911 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:52:17,911 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:52:17,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:52:17,911 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:52:17,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:52:17,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:52:17,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:52:17,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:52:17,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:52:17,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:52:17,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:52:17,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:52:17,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:52:17,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:52:17,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:52:17,916 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:52:18,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:52:18,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:52:18,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:52:18,429 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:52:18,430 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:52:18,431 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/avg20-2.i [2022-10-16 14:52:18,521 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2088a80e4/27ed2b7154a1441e94be3160df613083/FLAG532f1a0ce [2022-10-16 14:52:19,137 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:52:19,139 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/avg20-2.i [2022-10-16 14:52:19,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2088a80e4/27ed2b7154a1441e94be3160df613083/FLAG532f1a0ce [2022-10-16 14:52:19,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2088a80e4/27ed2b7154a1441e94be3160df613083 [2022-10-16 14:52:19,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:52:19,479 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:52:19,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:52:19,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:52:19,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:52:19,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:52:19" (1/1) ... [2022-10-16 14:52:19,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a2616ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:19, skipping insertion in model container [2022-10-16 14:52:19,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:52:19" (1/1) ... [2022-10-16 14:52:19,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:52:19,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:52:19,788 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/avg20-2.i[1282,1295] [2022-10-16 14:52:19,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:52:19,798 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:52:19,821 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/avg20-2.i[1282,1295] [2022-10-16 14:52:19,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:52:19,839 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:52:19,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:19 WrapperNode [2022-10-16 14:52:19,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:52:19,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:52:19,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:52:19,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:52:19,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:19" (1/1) ... [2022-10-16 14:52:19,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:19" (1/1) ... [2022-10-16 14:52:19,883 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-10-16 14:52:19,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:52:19,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:52:19,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:52:19,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:52:19,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:19" (1/1) ... [2022-10-16 14:52:19,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:19" (1/1) ... [2022-10-16 14:52:19,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:19" (1/1) ... [2022-10-16 14:52:19,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:19" (1/1) ... [2022-10-16 14:52:19,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:19" (1/1) ... [2022-10-16 14:52:19,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:19" (1/1) ... [2022-10-16 14:52:19,923 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:19" (1/1) ... [2022-10-16 14:52:19,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:19" (1/1) ... [2022-10-16 14:52:19,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:52:19,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:52:19,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:52:19,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:52:19,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:19" (1/1) ... [2022-10-16 14:52:19,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:52:19,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:52:19,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 14:52:19,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 14:52:20,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:52:20,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:52:20,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 14:52:20,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:52:20,034 INFO L130 BoogieDeclarations]: Found specification of procedure avg [2022-10-16 14:52:20,034 INFO L138 BoogieDeclarations]: Found implementation of procedure avg [2022-10-16 14:52:20,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:52:20,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:52:20,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:52:20,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:52:20,116 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:52:20,119 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:52:20,469 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:52:20,478 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:52:20,479 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 14:52:20,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:52:20 BoogieIcfgContainer [2022-10-16 14:52:20,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:52:20,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:52:20,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:52:20,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:52:20,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:52:19" (1/3) ... [2022-10-16 14:52:20,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129a4d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:52:20, skipping insertion in model container [2022-10-16 14:52:20,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:19" (2/3) ... [2022-10-16 14:52:20,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129a4d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:52:20, skipping insertion in model container [2022-10-16 14:52:20,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:52:20" (3/3) ... [2022-10-16 14:52:20,532 INFO L112 eAbstractionObserver]: Analyzing ICFG avg20-2.i [2022-10-16 14:52:20,563 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:52:20,563 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-16 14:52:20,714 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:52:20,733 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2aed2650, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:52:20,734 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-16 14:52:20,740 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 42 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:52:20,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:52:20,749 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:20,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:52:20,752 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:52:20,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:20,763 INFO L85 PathProgramCache]: Analyzing trace with hash 54464963, now seen corresponding path program 1 times [2022-10-16 14:52:20,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:20,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304263273] [2022-10-16 14:52:20,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:20,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:21,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:21,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:21,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304263273] [2022-10-16 14:52:21,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304263273] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:52:21,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:52:21,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:52:21,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146276053] [2022-10-16 14:52:21,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:52:21,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:52:21,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:21,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:52:21,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:52:21,229 INFO L87 Difference]: Start difference. First operand has 47 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 42 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:21,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:21,321 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2022-10-16 14:52:21,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:52:21,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 14:52:21,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:21,334 INFO L225 Difference]: With dead ends: 92 [2022-10-16 14:52:21,335 INFO L226 Difference]: Without dead ends: 45 [2022-10-16 14:52:21,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:52:21,344 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 3 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:21,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 137 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:52:21,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-16 14:52:21,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-10-16 14:52:21,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 41 states have internal predecessors, (44), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:52:21,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-10-16 14:52:21,396 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 5 [2022-10-16 14:52:21,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:21,396 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-10-16 14:52:21,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:21,397 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-10-16 14:52:21,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:52:21,398 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:21,398 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:52:21,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:52:21,399 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:52:21,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:21,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1177332607, now seen corresponding path program 1 times [2022-10-16 14:52:21,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:21,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541882880] [2022-10-16 14:52:21,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:21,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:21,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:52:21,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:21,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541882880] [2022-10-16 14:52:21,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541882880] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:52:21,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:52:21,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:52:21,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221255676] [2022-10-16 14:52:21,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:52:21,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:52:21,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:21,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:52:21,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:52:21,535 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:21,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:21,574 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2022-10-16 14:52:21,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:52:21,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 14:52:21,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:21,576 INFO L225 Difference]: With dead ends: 45 [2022-10-16 14:52:21,577 INFO L226 Difference]: Without dead ends: 44 [2022-10-16 14:52:21,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:52:21,579 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 5 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:21,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 114 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:52:21,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-10-16 14:52:21,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-10-16 14:52:21,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 40 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:52:21,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2022-10-16 14:52:21,593 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 9 [2022-10-16 14:52:21,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:21,595 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2022-10-16 14:52:21,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:21,596 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-10-16 14:52:21,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 14:52:21,596 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:21,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:52:21,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:52:21,598 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting avgErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:52:21,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:21,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1839721591, now seen corresponding path program 1 times [2022-10-16 14:52:21,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:21,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661662880] [2022-10-16 14:52:21,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:21,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:21,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:21,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:21,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661662880] [2022-10-16 14:52:21,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661662880] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:52:21,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313928720] [2022-10-16 14:52:21,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:21,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:21,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:52:21,734 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:52:21,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:52:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:21,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 14:52:21,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:52:21,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:52:21,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:52:21,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313928720] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:52:21,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:52:21,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-16 14:52:21,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533187334] [2022-10-16 14:52:21,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:52:21,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:52:21,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:21,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:52:21,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:52:21,834 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:21,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:21,855 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2022-10-16 14:52:21,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:52:21,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 14:52:21,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:21,858 INFO L225 Difference]: With dead ends: 86 [2022-10-16 14:52:21,858 INFO L226 Difference]: Without dead ends: 54 [2022-10-16 14:52:21,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:52:21,861 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 9 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:21,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 81 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:52:21,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-10-16 14:52:21,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 45. [2022-10-16 14:52:21,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 41 states have internal predecessors, (44), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:52:21,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-10-16 14:52:21,871 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 11 [2022-10-16 14:52:21,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:21,871 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-10-16 14:52:21,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:21,872 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-10-16 14:52:21,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 14:52:21,873 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:21,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:52:21,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 14:52:22,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:22,088 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:52:22,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:22,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1839721640, now seen corresponding path program 1 times [2022-10-16 14:52:22,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:22,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253853341] [2022-10-16 14:52:22,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:22,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:22,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:22,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:22,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253853341] [2022-10-16 14:52:22,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253853341] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:52:22,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057558545] [2022-10-16 14:52:22,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:22,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:22,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:52:22,221 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:52:22,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:52:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:22,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:52:22,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:52:22,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:22,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:52:22,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:22,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057558545] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:52:22,376 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:52:22,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 14:52:22,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629336007] [2022-10-16 14:52:22,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:52:22,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:52:22,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:22,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:52:22,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:52:22,379 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:22,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:22,464 INFO L93 Difference]: Finished difference Result 85 states and 94 transitions. [2022-10-16 14:52:22,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 14:52:22,465 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 14:52:22,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:22,467 INFO L225 Difference]: With dead ends: 85 [2022-10-16 14:52:22,467 INFO L226 Difference]: Without dead ends: 51 [2022-10-16 14:52:22,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-10-16 14:52:22,470 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 13 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:22,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 230 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:52:22,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-10-16 14:52:22,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2022-10-16 14:52:22,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 46 states have internal predecessors, (50), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:52:22,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2022-10-16 14:52:22,488 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 11 [2022-10-16 14:52:22,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:22,489 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2022-10-16 14:52:22,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:22,493 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2022-10-16 14:52:22,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:52:22,494 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:22,494 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 14:52:22,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 14:52:22,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 14:52:22,696 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:52:22,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:22,697 INFO L85 PathProgramCache]: Analyzing trace with hash 2137572522, now seen corresponding path program 1 times [2022-10-16 14:52:22,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:22,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243264276] [2022-10-16 14:52:22,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:22,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:22,789 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:22,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:22,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243264276] [2022-10-16 14:52:22,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243264276] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:52:22,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160531271] [2022-10-16 14:52:22,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:22,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:22,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:52:22,793 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:52:22,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:52:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:22,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:52:22,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:52:22,888 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:22,888 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:52:22,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160531271] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:52:22,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:52:22,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:52:22,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791849701] [2022-10-16 14:52:22,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:52:22,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:52:22,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:22,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:52:22,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:52:22,892 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:22,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:22,943 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2022-10-16 14:52:22,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:52:22,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 14:52:22,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:22,945 INFO L225 Difference]: With dead ends: 50 [2022-10-16 14:52:22,945 INFO L226 Difference]: Without dead ends: 49 [2022-10-16 14:52:22,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:52:22,965 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 34 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:22,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 133 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:52:22,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-16 14:52:22,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-10-16 14:52:22,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 45 states have internal predecessors, (48), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:52:22,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2022-10-16 14:52:22,975 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 10 [2022-10-16 14:52:22,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:22,976 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2022-10-16 14:52:22,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:22,976 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2022-10-16 14:52:22,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 14:52:22,977 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:22,977 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:52:23,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:52:23,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:23,193 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:52:23,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:23,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1027086304, now seen corresponding path program 2 times [2022-10-16 14:52:23,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:23,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877160582] [2022-10-16 14:52:23,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:23,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:23,439 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:23,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:23,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877160582] [2022-10-16 14:52:23,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877160582] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:52:23,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683964412] [2022-10-16 14:52:23,441 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:52:23,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:23,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:52:23,443 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:52:23,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:52:23,507 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:52:23,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:52:23,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:52:23,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:52:23,565 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:23,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:52:23,659 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:23,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683964412] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:52:23,659 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:52:23,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-10-16 14:52:23,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526658477] [2022-10-16 14:52:23,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:52:23,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 14:52:23,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:23,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 14:52:23,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:52:23,662 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:23,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:23,792 INFO L93 Difference]: Finished difference Result 99 states and 110 transitions. [2022-10-16 14:52:23,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:52:23,793 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 14:52:23,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:23,798 INFO L225 Difference]: With dead ends: 99 [2022-10-16 14:52:23,798 INFO L226 Difference]: Without dead ends: 65 [2022-10-16 14:52:23,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:52:23,806 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 29 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:23,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 264 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:52:23,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-10-16 14:52:23,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-10-16 14:52:23,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 61 states have internal predecessors, (64), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:52:23,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2022-10-16 14:52:23,829 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 19 [2022-10-16 14:52:23,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:23,832 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2022-10-16 14:52:23,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:23,834 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2022-10-16 14:52:23,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 14:52:23,835 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:23,835 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:52:23,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:52:24,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:24,050 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:52:24,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:24,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1254426864, now seen corresponding path program 3 times [2022-10-16 14:52:24,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:24,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362464058] [2022-10-16 14:52:24,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:24,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:24,389 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:24,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:24,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362464058] [2022-10-16 14:52:24,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362464058] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:52:24,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551512611] [2022-10-16 14:52:24,391 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:52:24,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:24,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:52:24,392 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:52:24,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:52:24,472 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-10-16 14:52:24,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:52:24,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 14:52:24,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:52:24,608 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:24,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:52:24,930 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:24,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551512611] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:52:24,931 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:52:24,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-10-16 14:52:24,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409658876] [2022-10-16 14:52:24,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:52:24,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 14:52:24,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:24,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 14:52:24,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 14:52:24,935 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand has 34 states, 34 states have (on average 2.0294117647058822) internal successors, (69), 34 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:25,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:25,266 INFO L93 Difference]: Finished difference Result 131 states and 146 transitions. [2022-10-16 14:52:25,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 14:52:25,267 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.0294117647058822) internal successors, (69), 34 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-10-16 14:52:25,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:25,268 INFO L225 Difference]: With dead ends: 131 [2022-10-16 14:52:25,268 INFO L226 Difference]: Without dead ends: 97 [2022-10-16 14:52:25,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 14:52:25,271 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 83 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:25,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 340 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:52:25,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-10-16 14:52:25,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-10-16 14:52:25,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 83 states have (on average 1.1566265060240963) internal successors, (96), 93 states have internal predecessors, (96), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:52:25,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 101 transitions. [2022-10-16 14:52:25,282 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 101 transitions. Word has length 35 [2022-10-16 14:52:25,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:25,283 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 101 transitions. [2022-10-16 14:52:25,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.0294117647058822) internal successors, (69), 34 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:25,283 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 101 transitions. [2022-10-16 14:52:25,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-16 14:52:25,285 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:25,286 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:52:25,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:52:25,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:25,500 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:52:25,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:25,501 INFO L85 PathProgramCache]: Analyzing trace with hash 2014147824, now seen corresponding path program 4 times [2022-10-16 14:52:25,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:25,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479445552] [2022-10-16 14:52:25,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:25,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:26,506 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:26,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:26,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479445552] [2022-10-16 14:52:26,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479445552] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:52:26,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085998513] [2022-10-16 14:52:26,507 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:52:26,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:26,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:52:26,510 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:52:26,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:52:26,609 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:52:26,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:52:26,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 14:52:26,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:52:26,770 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:26,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:52:27,384 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:27,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085998513] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:52:27,384 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:52:27,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 43 [2022-10-16 14:52:27,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563582962] [2022-10-16 14:52:27,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:52:27,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-10-16 14:52:27,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:52:27,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-10-16 14:52:27,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=483, Invalid=1323, Unknown=0, NotChecked=0, Total=1806 [2022-10-16 14:52:27,388 INFO L87 Difference]: Start difference. First operand 97 states and 101 transitions. Second operand has 43 states, 43 states have (on average 2.0697674418604652) internal successors, (89), 43 states have internal predecessors, (89), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:27,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:52:27,833 INFO L93 Difference]: Finished difference Result 151 states and 163 transitions. [2022-10-16 14:52:27,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-10-16 14:52:27,834 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.0697674418604652) internal successors, (89), 43 states have internal predecessors, (89), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-10-16 14:52:27,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:52:27,835 INFO L225 Difference]: With dead ends: 151 [2022-10-16 14:52:27,836 INFO L226 Difference]: Without dead ends: 117 [2022-10-16 14:52:27,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 101 SyntacticMatches, 23 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1407 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1093, Invalid=2689, Unknown=0, NotChecked=0, Total=3782 [2022-10-16 14:52:27,839 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 102 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:52:27,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 414 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:52:27,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-10-16 14:52:27,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2022-10-16 14:52:27,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 103 states have (on average 1.1262135922330097) internal successors, (116), 113 states have internal predecessors, (116), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:52:27,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 121 transitions. [2022-10-16 14:52:27,851 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 121 transitions. Word has length 67 [2022-10-16 14:52:27,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:52:27,851 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 121 transitions. [2022-10-16 14:52:27,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.0697674418604652) internal successors, (89), 43 states have internal predecessors, (89), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:52:27,852 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 121 transitions. [2022-10-16 14:52:27,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-10-16 14:52:27,853 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:52:27,853 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:52:27,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:52:28,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:28,068 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [avgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, avgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:52:28,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:52:28,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1722227556, now seen corresponding path program 5 times [2022-10-16 14:52:28,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:52:28,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665766959] [2022-10-16 14:52:28,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:52:28,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:52:28,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:52:35,163 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 612 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:35,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:52:35,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665766959] [2022-10-16 14:52:35,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665766959] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:52:35,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838250403] [2022-10-16 14:52:35,164 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:52:35,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:52:35,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:52:35,167 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:52:35,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:52:35,731 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2022-10-16 14:52:35,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:52:35,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 97 conjunts are in the unsatisfiable core [2022-10-16 14:52:35,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:52:35,806 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 14:52:35,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:52:35,889 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:52:35,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:52:35,938 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:52:35,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:52:35,980 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:52:36,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:52:36,023 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:52:36,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:52:36,065 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:52:36,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:52:36,113 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:52:36,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:52:36,155 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:52:36,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:52:36,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:52:36,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:52:36,243 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:52:36,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:52:36,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:52:36,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:52:36,334 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:52:36,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:52:36,381 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:52:36,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:52:36,425 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:52:36,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:52:36,478 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:52:36,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:52:36,512 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:52:36,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:52:36,548 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:52:36,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:52:36,594 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:52:36,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:52:36,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:52:36,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:52:36,729 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:52:36,802 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 14:52:36,841 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 666 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:52:36,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:52:59,266 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~1#1_39| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~1#1_38| Int) (v_ArrVal_273 Int) (v_ArrVal_271 Int)) (or (< (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~1#1_39| 4)) v_ArrVal_271) (+ (* |v_ULTIMATE.start_main_~i~1#1_38| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_273) |c_ULTIMATE.start_main_~#x~0#1.offset|) 9223372036854775808) (< |v_ULTIMATE.start_main_~i~1#1_38| (+ |v_ULTIMATE.start_main_~i~1#1_39| 1)))) (not (<= (+ |c_ULTIMATE.start_main_#t~post3#1| 1) |v_ULTIMATE.start_main_~i~1#1_39|)))) is different from false [2022-10-16 14:53:48,405 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~1#1_40| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~1#1_38| Int) (|v_ULTIMATE.start_main_~i~1#1_39| Int) (v_ArrVal_273 Int) (v_ArrVal_271 Int) (v_ArrVal_270 Int)) (or (< |v_ULTIMATE.start_main_~i~1#1_39| (+ |v_ULTIMATE.start_main_~i~1#1_40| 1)) (< |v_ULTIMATE.start_main_~i~1#1_38| (+ |v_ULTIMATE.start_main_~i~1#1_39| 1)) (< (select (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~1#1_40| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_270) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~1#1_39| 4)) v_ArrVal_271) (+ (* |v_ULTIMATE.start_main_~i~1#1_38| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_273) |c_ULTIMATE.start_main_~#x~0#1.offset|) 9223372036854775808))) (not (<= (+ |c_ULTIMATE.start_main_#t~post3#1| 1) |v_ULTIMATE.start_main_~i~1#1_40|)))) is different from false [2022-10-16 14:54:51,723 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~1#1_41| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~1#1_38| Int) (v_ArrVal_268 Int) (|v_ULTIMATE.start_main_~i~1#1_39| Int) (v_ArrVal_273 Int) (|v_ULTIMATE.start_main_~i~1#1_40| Int) (v_ArrVal_271 Int) (v_ArrVal_270 Int)) (or (< |v_ULTIMATE.start_main_~i~1#1_40| (+ |v_ULTIMATE.start_main_~i~1#1_41| 1)) (< (select (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~1#1_41| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_268) (+ (* |v_ULTIMATE.start_main_~i~1#1_40| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_270) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~1#1_39| 4)) v_ArrVal_271) (+ (* |v_ULTIMATE.start_main_~i~1#1_38| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_273) |c_ULTIMATE.start_main_~#x~0#1.offset|) 9223372036854775808) (< |v_ULTIMATE.start_main_~i~1#1_39| (+ |v_ULTIMATE.start_main_~i~1#1_40| 1)) (< |v_ULTIMATE.start_main_~i~1#1_38| (+ |v_ULTIMATE.start_main_~i~1#1_39| 1)))) (not (<= (+ |c_ULTIMATE.start_main_#t~post3#1| 1) |v_ULTIMATE.start_main_~i~1#1_41|)))) is different from false [2022-10-16 14:56:06,761 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~1#1_42| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post3#1| 1) |v_ULTIMATE.start_main_~i~1#1_42|)) (forall ((|v_ULTIMATE.start_main_~i~1#1_38| Int) (v_ArrVal_268 Int) (v_ArrVal_265 Int) (|v_ULTIMATE.start_main_~i~1#1_39| Int) (v_ArrVal_273 Int) (|v_ULTIMATE.start_main_~i~1#1_41| Int) (|v_ULTIMATE.start_main_~i~1#1_40| Int) (v_ArrVal_271 Int) (v_ArrVal_270 Int)) (or (< |v_ULTIMATE.start_main_~i~1#1_40| (+ |v_ULTIMATE.start_main_~i~1#1_41| 1)) (< |v_ULTIMATE.start_main_~i~1#1_39| (+ |v_ULTIMATE.start_main_~i~1#1_40| 1)) (< |v_ULTIMATE.start_main_~i~1#1_38| (+ |v_ULTIMATE.start_main_~i~1#1_39| 1)) (< (select (store (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~1#1_42| 4)) v_ArrVal_265) (+ (* |v_ULTIMATE.start_main_~i~1#1_41| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_268) (+ (* |v_ULTIMATE.start_main_~i~1#1_40| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_270) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| (* |v_ULTIMATE.start_main_~i~1#1_39| 4)) v_ArrVal_271) (+ (* |v_ULTIMATE.start_main_~i~1#1_38| 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) v_ArrVal_273) |c_ULTIMATE.start_main_~#x~0#1.offset|) 9223372036854775808) (< |v_ULTIMATE.start_main_~i~1#1_41| (+ |v_ULTIMATE.start_main_~i~1#1_42| 1)))))) is different from false