/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-crafted/bAnd2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 09:55:03,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 09:55:03,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 09:55:03,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 09:55:03,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 09:55:03,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 09:55:03,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 09:55:03,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 09:55:03,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 09:55:03,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 09:55:03,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 09:55:03,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 09:55:03,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 09:55:03,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 09:55:03,892 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 09:55:03,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 09:55:03,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 09:55:03,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 09:55:03,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 09:55:03,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 09:55:03,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 09:55:03,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 09:55:03,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 09:55:03,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 09:55:03,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 09:55:03,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 09:55:03,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 09:55:03,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 09:55:03,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 09:55:03,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 09:55:03,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 09:55:03,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 09:55:03,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 09:55:03,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 09:55:03,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 09:55:03,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 09:55:03,920 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 09:55:03,947 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 09:55:03,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 09:55:03,948 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 09:55:03,948 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 09:55:03,949 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 09:55:03,949 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 09:55:03,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 09:55:03,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 09:55:03,951 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 09:55:03,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 09:55:03,951 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 09:55:03,951 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 09:55:03,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 09:55:03,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 09:55:03,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 09:55:03,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 09:55:03,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 09:55:03,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 09:55:03,953 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 09:55:03,953 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 09:55:03,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 09:55:03,953 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 09:55:03,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 09:55:03,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 09:55:03,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 09:55:03,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 09:55:03,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 09:55:03,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 09:55:03,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 09:55:03,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 09:55:03,955 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 09:55:03,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 09:55:03,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 09:55:03,956 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 09:55:04,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 09:55:04,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 09:55:04,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 09:55:04,435 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 09:55:04,436 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 09:55:04,437 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-crafted/bAnd2.i [2022-10-16 09:55:04,509 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bce4dfd6/7566bd42d52f4f14b6481c3176622f85/FLAGd73b6611b [2022-10-16 09:55:05,087 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 09:55:05,088 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-crafted/bAnd2.i [2022-10-16 09:55:05,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bce4dfd6/7566bd42d52f4f14b6481c3176622f85/FLAGd73b6611b [2022-10-16 09:55:05,446 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bce4dfd6/7566bd42d52f4f14b6481c3176622f85 [2022-10-16 09:55:05,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 09:55:05,458 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 09:55:05,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 09:55:05,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 09:55:05,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 09:55:05,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 09:55:05" (1/1) ... [2022-10-16 09:55:05,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52b24dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:05, skipping insertion in model container [2022-10-16 09:55:05,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 09:55:05" (1/1) ... [2022-10-16 09:55:05,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 09:55:05,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 09:55:05,692 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-crafted/bAnd2.i[1296,1309] [2022-10-16 09:55:05,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 09:55:05,702 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 09:55:05,732 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-crafted/bAnd2.i[1296,1309] [2022-10-16 09:55:05,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 09:55:05,759 INFO L208 MainTranslator]: Completed translation [2022-10-16 09:55:05,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:05 WrapperNode [2022-10-16 09:55:05,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 09:55:05,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 09:55:05,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 09:55:05,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 09:55:05,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:05" (1/1) ... [2022-10-16 09:55:05,796 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:05" (1/1) ... [2022-10-16 09:55:05,833 INFO L138 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-10-16 09:55:05,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 09:55:05,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 09:55:05,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 09:55:05,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 09:55:05,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:05" (1/1) ... [2022-10-16 09:55:05,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:05" (1/1) ... [2022-10-16 09:55:05,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:05" (1/1) ... [2022-10-16 09:55:05,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:05" (1/1) ... [2022-10-16 09:55:05,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:05" (1/1) ... [2022-10-16 09:55:05,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:05" (1/1) ... [2022-10-16 09:55:05,880 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:05" (1/1) ... [2022-10-16 09:55:05,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:05" (1/1) ... [2022-10-16 09:55:05,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 09:55:05,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 09:55:05,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 09:55:05,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 09:55:05,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:05" (1/1) ... [2022-10-16 09:55:05,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 09:55:05,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:05,934 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 09:55:05,956 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 09:55:05,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 09:55:05,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 09:55:05,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 09:55:05,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 09:55:05,999 INFO L130 BoogieDeclarations]: Found specification of procedure bAnd [2022-10-16 09:55:05,999 INFO L138 BoogieDeclarations]: Found implementation of procedure bAnd [2022-10-16 09:55:05,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 09:55:06,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 09:55:06,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 09:55:06,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 09:55:06,082 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 09:55:06,085 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 09:55:06,373 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 09:55:06,387 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 09:55:06,388 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 09:55:06,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 09:55:06 BoogieIcfgContainer [2022-10-16 09:55:06,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 09:55:06,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 09:55:06,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 09:55:06,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 09:55:06,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 09:55:05" (1/3) ... [2022-10-16 09:55:06,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4005403d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 09:55:06, skipping insertion in model container [2022-10-16 09:55:06,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:55:05" (2/3) ... [2022-10-16 09:55:06,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4005403d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 09:55:06, skipping insertion in model container [2022-10-16 09:55:06,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 09:55:06" (3/3) ... [2022-10-16 09:55:06,421 INFO L112 eAbstractionObserver]: Analyzing ICFG bAnd2.i [2022-10-16 09:55:06,474 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 09:55:06,474 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-10-16 09:55:06,554 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 09:55:06,570 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;@20e25cfc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 09:55:06,571 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-10-16 09:55:06,578 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 32 states have (on average 1.59375) internal successors, (51), 40 states have internal predecessors, (51), 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 09:55:06,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 09:55:06,587 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:06,588 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 09:55:06,612 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:55:06,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:06,627 INFO L85 PathProgramCache]: Analyzing trace with hash 68779538, now seen corresponding path program 1 times [2022-10-16 09:55:06,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:06,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925696500] [2022-10-16 09:55:06,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:06,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:07,010 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 09:55:07,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:07,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925696500] [2022-10-16 09:55:07,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925696500] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:07,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:55:07,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:55:07,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308156779] [2022-10-16 09:55:07,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:07,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:55:07,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:07,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:55:07,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:55:07,058 INFO L87 Difference]: Start difference. First operand has 45 states, 32 states have (on average 1.59375) internal successors, (51), 40 states have internal predecessors, (51), 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 09:55:07,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:07,131 INFO L93 Difference]: Finished difference Result 88 states and 115 transitions. [2022-10-16 09:55:07,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 09:55:07,134 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 09:55:07,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:07,144 INFO L225 Difference]: With dead ends: 88 [2022-10-16 09:55:07,144 INFO L226 Difference]: Without dead ends: 43 [2022-10-16 09:55:07,148 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 09:55:07,152 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 3 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 140 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 09:55:07,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 140 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:55:07,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-10-16 09:55:07,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-10-16 09:55:07,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 39 states have internal predecessors, (45), 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 09:55:07,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2022-10-16 09:55:07,201 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 5 [2022-10-16 09:55:07,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:07,202 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2022-10-16 09:55:07,202 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 09:55:07,203 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2022-10-16 09:55:07,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 09:55:07,203 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:07,204 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 09:55:07,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 09:55:07,204 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:55:07,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:07,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1079075854, now seen corresponding path program 1 times [2022-10-16 09:55:07,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:07,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260732301] [2022-10-16 09:55:07,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:07,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:07,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:07,295 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 09:55:07,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:07,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260732301] [2022-10-16 09:55:07,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260732301] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:07,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:55:07,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:55:07,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437831871] [2022-10-16 09:55:07,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:07,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:55:07,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:07,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:55:07,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:55:07,304 INFO L87 Difference]: Start difference. First operand 43 states and 50 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 09:55:07,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:07,354 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2022-10-16 09:55:07,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 09:55:07,355 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 09:55:07,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:07,357 INFO L225 Difference]: With dead ends: 43 [2022-10-16 09:55:07,358 INFO L226 Difference]: Without dead ends: 42 [2022-10-16 09:55:07,358 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 09:55:07,361 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 5 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 117 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 09:55:07,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 117 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:55:07,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-16 09:55:07,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-10-16 09:55:07,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 38 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 09:55:07,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2022-10-16 09:55:07,383 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 9 [2022-10-16 09:55:07,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:07,385 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2022-10-16 09:55:07,386 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 09:55:07,386 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2022-10-16 09:55:07,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 09:55:07,387 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:07,388 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 09:55:07,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 09:55:07,389 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:55:07,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:07,393 INFO L85 PathProgramCache]: Analyzing trace with hash -908386806, now seen corresponding path program 1 times [2022-10-16 09:55:07,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:07,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847552084] [2022-10-16 09:55:07,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:07,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:07,555 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 09:55:07,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:07,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847552084] [2022-10-16 09:55:07,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847552084] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:55:07,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836754093] [2022-10-16 09:55:07,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:07,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:07,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:07,576 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 09:55:07,579 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 09:55:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:07,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 09:55:07,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:07,710 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 09:55:07,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 09:55:07,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836754093] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:07,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 09:55:07,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 09:55:07,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040869668] [2022-10-16 09:55:07,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:07,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 09:55:07,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:07,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 09:55:07,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 09:55:07,714 INFO L87 Difference]: Start difference. First operand 42 states and 49 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 09:55:07,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:07,764 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2022-10-16 09:55:07,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 09:55:07,765 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 09:55:07,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:07,766 INFO L225 Difference]: With dead ends: 42 [2022-10-16 09:55:07,766 INFO L226 Difference]: Without dead ends: 41 [2022-10-16 09:55:07,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 09:55:07,768 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 34 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:07,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 99 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:55:07,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-16 09:55:07,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2022-10-16 09:55:07,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 34 states have internal predecessors, (40), 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 09:55:07,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2022-10-16 09:55:07,777 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 10 [2022-10-16 09:55:07,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:07,777 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2022-10-16 09:55:07,777 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 09:55:07,778 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2022-10-16 09:55:07,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 09:55:07,778 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:07,779 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:07,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 09:55:07,995 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 09:55:07,995 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:55:07,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:07,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1527310133, now seen corresponding path program 1 times [2022-10-16 09:55:07,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:07,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150624271] [2022-10-16 09:55:07,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:07,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:08,077 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 09:55:08,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:08,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150624271] [2022-10-16 09:55:08,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150624271] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:55:08,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609066132] [2022-10-16 09:55:08,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:08,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:08,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:08,081 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 09:55:08,099 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 09:55:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:08,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 09:55:08,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:08,170 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 09:55:08,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:55:08,210 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 09:55:08,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609066132] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:55:08,211 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 09:55:08,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 09:55:08,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935844348] [2022-10-16 09:55:08,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 09:55:08,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 09:55:08,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:08,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 09:55:08,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 09:55:08,214 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:08,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:08,275 INFO L93 Difference]: Finished difference Result 77 states and 92 transitions. [2022-10-16 09:55:08,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 09:55:08,276 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 09:55:08,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:08,277 INFO L225 Difference]: With dead ends: 77 [2022-10-16 09:55:08,278 INFO L226 Difference]: Without dead ends: 46 [2022-10-16 09:55:08,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-16 09:55:08,280 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 13 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:08,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 234 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:55:08,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-10-16 09:55:08,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-10-16 09:55:08,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 42 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 09:55:08,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2022-10-16 09:55:08,290 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 14 [2022-10-16 09:55:08,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:08,290 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2022-10-16 09:55:08,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:08,291 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2022-10-16 09:55:08,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 09:55:08,292 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:08,292 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:08,327 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 09:55:08,506 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 09:55:08,507 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:55:08,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:08,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1745137725, now seen corresponding path program 2 times [2022-10-16 09:55:08,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:08,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488032737] [2022-10-16 09:55:08,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:08,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:08,594 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 09:55:08,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:08,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488032737] [2022-10-16 09:55:08,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488032737] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:08,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:55:08,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:55:08,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335740281] [2022-10-16 09:55:08,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:08,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:55:08,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:08,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:55:08,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:55:08,598 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:08,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:08,626 INFO L93 Difference]: Finished difference Result 85 states and 105 transitions. [2022-10-16 09:55:08,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 09:55:08,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-10-16 09:55:08,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:08,628 INFO L225 Difference]: With dead ends: 85 [2022-10-16 09:55:08,628 INFO L226 Difference]: Without dead ends: 55 [2022-10-16 09:55:08,629 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 09:55:08,631 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 9 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:08,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 117 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:55:08,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-10-16 09:55:08,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2022-10-16 09:55:08,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 51 states have internal predecessors, (60), 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 09:55:08,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 65 transitions. [2022-10-16 09:55:08,647 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 65 transitions. Word has length 22 [2022-10-16 09:55:08,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:08,647 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 65 transitions. [2022-10-16 09:55:08,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:08,654 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2022-10-16 09:55:08,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 09:55:08,655 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:08,655 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:08,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 09:55:08,656 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:55:08,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:08,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1419267882, now seen corresponding path program 1 times [2022-10-16 09:55:08,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:08,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304398492] [2022-10-16 09:55:08,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:08,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:08,751 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 09:55:08,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:08,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304398492] [2022-10-16 09:55:08,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304398492] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:08,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:55:08,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:55:08,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796141426] [2022-10-16 09:55:08,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:08,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:55:08,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:08,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:55:08,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:55:08,755 INFO L87 Difference]: Start difference. First operand 55 states and 65 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 09:55:08,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:08,781 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2022-10-16 09:55:08,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 09:55:08,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-16 09:55:08,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:08,784 INFO L225 Difference]: With dead ends: 55 [2022-10-16 09:55:08,784 INFO L226 Difference]: Without dead ends: 54 [2022-10-16 09:55:08,786 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 09:55:08,788 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 11 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:08,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 104 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:55:08,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-10-16 09:55:08,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-10-16 09:55:08,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 50 states have internal predecessors, (59), 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 09:55:08,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2022-10-16 09:55:08,806 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 28 [2022-10-16 09:55:08,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:08,806 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2022-10-16 09:55:08,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 09:55:08,807 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2022-10-16 09:55:08,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 09:55:08,808 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:08,809 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:08,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 09:55:08,809 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:55:08,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:08,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1047631316, now seen corresponding path program 1 times [2022-10-16 09:55:08,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:08,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117636120] [2022-10-16 09:55:08,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:08,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:09,076 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 09:55:09,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:09,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117636120] [2022-10-16 09:55:09,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117636120] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:55:09,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110567745] [2022-10-16 09:55:09,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:09,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:09,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:09,079 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 09:55:09,100 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 09:55:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:09,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 09:55:09,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:09,191 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 09:55:09,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:55:09,282 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 09:55:09,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110567745] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:55:09,283 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 09:55:09,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-10-16 09:55:09,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816815308] [2022-10-16 09:55:09,284 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 09:55:09,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 09:55:09,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:09,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 09:55:09,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-10-16 09:55:09,286 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:09,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:09,386 INFO L93 Difference]: Finished difference Result 109 states and 132 transitions. [2022-10-16 09:55:09,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 09:55:09,387 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-16 09:55:09,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:09,388 INFO L225 Difference]: With dead ends: 109 [2022-10-16 09:55:09,388 INFO L226 Difference]: Without dead ends: 70 [2022-10-16 09:55:09,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 49 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 09:55:09,390 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 55 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:09,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 153 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:55:09,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-10-16 09:55:09,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-10-16 09:55:09,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 61 states have (on average 1.2295081967213115) internal successors, (75), 66 states have internal predecessors, (75), 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 09:55:09,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 80 transitions. [2022-10-16 09:55:09,399 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 80 transitions. Word has length 29 [2022-10-16 09:55:09,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:09,399 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 80 transitions. [2022-10-16 09:55:09,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:09,400 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 80 transitions. [2022-10-16 09:55:09,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 09:55:09,401 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:09,401 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:09,426 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 09:55:09,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:09,608 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:55:09,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:09,609 INFO L85 PathProgramCache]: Analyzing trace with hash -187367908, now seen corresponding path program 2 times [2022-10-16 09:55:09,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:09,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309224610] [2022-10-16 09:55:09,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:09,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:10,022 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 09:55:10,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:10,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309224610] [2022-10-16 09:55:10,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309224610] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:55:10,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306971889] [2022-10-16 09:55:10,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 09:55:10,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:10,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:10,025 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 09:55:10,056 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 09:55:10,124 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 09:55:10,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 09:55:10,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 09:55:10,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:10,227 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 09:55:10,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:55:10,514 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 09:55:10,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306971889] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:55:10,515 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 09:55:10,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-10-16 09:55:10,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714646385] [2022-10-16 09:55:10,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 09:55:10,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 09:55:10,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:10,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 09:55:10,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 09:55:10,518 INFO L87 Difference]: Start difference. First operand 70 states and 80 transitions. Second operand has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 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 09:55:10,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:10,848 INFO L93 Difference]: Finished difference Result 141 states and 168 transitions. [2022-10-16 09:55:10,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 09:55:10,849 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 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 45 [2022-10-16 09:55:10,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:10,850 INFO L225 Difference]: With dead ends: 141 [2022-10-16 09:55:10,850 INFO L226 Difference]: Without dead ends: 102 [2022-10-16 09:55:10,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 73 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 09:55:10,853 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 75 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:10,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 415 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:55:10,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-10-16 09:55:10,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-10-16 09:55:10,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 93 states have (on average 1.1505376344086022) internal successors, (107), 98 states have internal predecessors, (107), 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 09:55:10,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 112 transitions. [2022-10-16 09:55:10,864 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 112 transitions. Word has length 45 [2022-10-16 09:55:10,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:10,864 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 112 transitions. [2022-10-16 09:55:10,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 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 09:55:10,865 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 112 transitions. [2022-10-16 09:55:10,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-16 09:55:10,867 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:10,868 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:10,908 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 09:55:11,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:11,082 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:55:11,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:11,083 INFO L85 PathProgramCache]: Analyzing trace with hash 2085651964, now seen corresponding path program 3 times [2022-10-16 09:55:11,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:11,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979143669] [2022-10-16 09:55:11,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:11,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:12,036 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 09:55:12,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:12,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979143669] [2022-10-16 09:55:12,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979143669] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:55:12,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423237871] [2022-10-16 09:55:12,041 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 09:55:12,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:12,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:12,042 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 09:55:12,062 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 09:55:12,125 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 09:55:12,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 09:55:12,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 09:55:12,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:12,222 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 09:55:12,223 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 09:55:12,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423237871] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:12,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 09:55:12,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2022-10-16 09:55:12,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530902391] [2022-10-16 09:55:12,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:12,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 09:55:12,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:12,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 09:55:12,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1034, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 09:55:12,228 INFO L87 Difference]: Start difference. First operand 102 states and 112 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 09:55:12,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:12,303 INFO L93 Difference]: Finished difference Result 102 states and 112 transitions. [2022-10-16 09:55:12,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 09:55:12,304 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 77 [2022-10-16 09:55:12,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:12,307 INFO L225 Difference]: With dead ends: 102 [2022-10-16 09:55:12,307 INFO L226 Difference]: Without dead ends: 99 [2022-10-16 09:55:12,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=309, Invalid=1173, Unknown=0, NotChecked=0, Total=1482 [2022-10-16 09:55:12,312 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 22 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:12,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 124 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:55:12,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-10-16 09:55:12,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 91. [2022-10-16 09:55:12,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 84 states have (on average 1.1071428571428572) internal successors, (93), 87 states have internal predecessors, (93), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:55:12,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 97 transitions. [2022-10-16 09:55:12,337 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 97 transitions. Word has length 77 [2022-10-16 09:55:12,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:12,339 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 97 transitions. [2022-10-16 09:55:12,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 09:55:12,340 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 97 transitions. [2022-10-16 09:55:12,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-16 09:55:12,346 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:12,350 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:12,393 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 09:55:12,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:12,567 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:55:12,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:12,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1998161014, now seen corresponding path program 1 times [2022-10-16 09:55:12,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:12,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111569722] [2022-10-16 09:55:12,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:12,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:12,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:12,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 09:55:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:12,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 09:55:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:12,820 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2022-10-16 09:55:12,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:12,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111569722] [2022-10-16 09:55:12,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111569722] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:55:12,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375357916] [2022-10-16 09:55:12,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:12,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:12,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:12,826 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 09:55:12,834 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 09:55:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:12,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 09:55:12,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:12,952 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2022-10-16 09:55:12,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 09:55:12,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375357916] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:12,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 09:55:12,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2022-10-16 09:55:12,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341095239] [2022-10-16 09:55:12,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:12,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 09:55:12,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:12,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 09:55:12,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 09:55:12,955 INFO L87 Difference]: Start difference. First operand 91 states and 97 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:55:12,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:12,971 INFO L93 Difference]: Finished difference Result 100 states and 107 transitions. [2022-10-16 09:55:12,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 09:55:12,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 91 [2022-10-16 09:55:12,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:12,973 INFO L225 Difference]: With dead ends: 100 [2022-10-16 09:55:12,973 INFO L226 Difference]: Without dead ends: 99 [2022-10-16 09:55:12,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 09:55:12,974 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 7 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:12,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 64 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:55:12,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-10-16 09:55:12,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 93. [2022-10-16 09:55:12,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 86 states have (on average 1.1046511627906976) internal successors, (95), 89 states have internal predecessors, (95), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:55:12,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 99 transitions. [2022-10-16 09:55:12,981 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 99 transitions. Word has length 91 [2022-10-16 09:55:12,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:12,983 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 99 transitions. [2022-10-16 09:55:12,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:55:12,983 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 99 transitions. [2022-10-16 09:55:12,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-10-16 09:55:12,984 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:12,985 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:13,034 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 09:55:13,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:13,200 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:55:13,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:13,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1813449397, now seen corresponding path program 1 times [2022-10-16 09:55:13,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:13,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055254556] [2022-10-16 09:55:13,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:13,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:13,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 09:55:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:13,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 09:55:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:13,370 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2022-10-16 09:55:13,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:13,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055254556] [2022-10-16 09:55:13,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055254556] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:55:13,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605095107] [2022-10-16 09:55:13,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:13,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:13,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:13,372 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 09:55:13,391 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 09:55:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:13,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 09:55:13,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:13,500 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2022-10-16 09:55:13,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 09:55:13,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605095107] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:13,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 09:55:13,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2022-10-16 09:55:13,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476591371] [2022-10-16 09:55:13,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:13,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 09:55:13,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:13,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 09:55:13,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 09:55:13,503 INFO L87 Difference]: Start difference. First operand 93 states and 99 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:55:13,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:13,516 INFO L93 Difference]: Finished difference Result 100 states and 106 transitions. [2022-10-16 09:55:13,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 09:55:13,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 92 [2022-10-16 09:55:13,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:13,518 INFO L225 Difference]: With dead ends: 100 [2022-10-16 09:55:13,518 INFO L226 Difference]: Without dead ends: 99 [2022-10-16 09:55:13,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 09:55:13,519 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 5 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:13,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 65 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:55:13,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-10-16 09:55:13,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 94. [2022-10-16 09:55:13,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 87 states have (on average 1.103448275862069) internal successors, (96), 90 states have internal predecessors, (96), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:55:13,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 100 transitions. [2022-10-16 09:55:13,526 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 100 transitions. Word has length 92 [2022-10-16 09:55:13,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:13,527 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 100 transitions. [2022-10-16 09:55:13,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:55:13,527 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 100 transitions. [2022-10-16 09:55:13,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-10-16 09:55:13,528 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:13,529 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:13,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 09:55:13,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:13,743 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:55:13,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:13,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1031848169, now seen corresponding path program 1 times [2022-10-16 09:55:13,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:13,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796141705] [2022-10-16 09:55:13,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:13,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:13,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 09:55:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:13,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 09:55:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:13,961 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2022-10-16 09:55:13,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:13,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796141705] [2022-10-16 09:55:13,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796141705] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:55:13,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727398567] [2022-10-16 09:55:13,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:13,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:13,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:13,964 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 09:55:13,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 09:55:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:14,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 09:55:14,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:14,617 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 09:55:14,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:55:15,685 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 09:55:15,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727398567] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:55:15,686 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 09:55:15,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 33, 33] total 68 [2022-10-16 09:55:15,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93069359] [2022-10-16 09:55:15,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 09:55:15,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-10-16 09:55:15,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:15,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-10-16 09:55:15,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1065, Invalid=3491, Unknown=0, NotChecked=0, Total=4556 [2022-10-16 09:55:15,691 INFO L87 Difference]: Start difference. First operand 94 states and 100 transitions. Second operand has 68 states, 68 states have (on average 2.4558823529411766) internal successors, (167), 67 states have internal predecessors, (167), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 09:55:16,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:16,727 INFO L93 Difference]: Finished difference Result 206 states and 242 transitions. [2022-10-16 09:55:16,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-10-16 09:55:16,728 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 2.4558823529411766) internal successors, (167), 67 states have internal predecessors, (167), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 94 [2022-10-16 09:55:16,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:16,730 INFO L225 Difference]: With dead ends: 206 [2022-10-16 09:55:16,730 INFO L226 Difference]: Without dead ends: 175 [2022-10-16 09:55:16,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1968 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2554, Invalid=7546, Unknown=0, NotChecked=0, Total=10100 [2022-10-16 09:55:16,739 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 296 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:16,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 353 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 09:55:16,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-10-16 09:55:16,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 167. [2022-10-16 09:55:16,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 160 states have (on average 1.075) internal successors, (172), 163 states have internal predecessors, (172), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:55:16,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 176 transitions. [2022-10-16 09:55:16,749 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 176 transitions. Word has length 94 [2022-10-16 09:55:16,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:16,750 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 176 transitions. [2022-10-16 09:55:16,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 2.4558823529411766) internal successors, (167), 67 states have internal predecessors, (167), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 09:55:16,751 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 176 transitions. [2022-10-16 09:55:16,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-10-16 09:55:16,754 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:16,754 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:16,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-10-16 09:55:16,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 09:55:16,968 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:55:16,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:16,969 INFO L85 PathProgramCache]: Analyzing trace with hash -712795273, now seen corresponding path program 2 times [2022-10-16 09:55:16,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:16,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784048769] [2022-10-16 09:55:16,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:16,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:17,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-10-16 09:55:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:17,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-16 09:55:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:17,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1940 trivial. 0 not checked. [2022-10-16 09:55:17,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:17,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784048769] [2022-10-16 09:55:17,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784048769] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:17,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:55:17,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 09:55:17,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657840967] [2022-10-16 09:55:17,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:17,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 09:55:17,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:17,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 09:55:17,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 09:55:17,221 INFO L87 Difference]: Start difference. First operand 167 states and 176 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:55:17,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:17,251 INFO L93 Difference]: Finished difference Result 172 states and 181 transitions. [2022-10-16 09:55:17,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 09:55:17,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 170 [2022-10-16 09:55:17,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:17,253 INFO L225 Difference]: With dead ends: 172 [2022-10-16 09:55:17,254 INFO L226 Difference]: Without dead ends: 170 [2022-10-16 09:55:17,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 09:55:17,255 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 19 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:17,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 106 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:55:17,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-10-16 09:55:17,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2022-10-16 09:55:17,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 163 states have (on average 1.0736196319018405) internal successors, (175), 166 states have internal predecessors, (175), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:55:17,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 179 transitions. [2022-10-16 09:55:17,263 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 179 transitions. Word has length 170 [2022-10-16 09:55:17,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:17,264 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 179 transitions. [2022-10-16 09:55:17,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:55:17,264 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 179 transitions. [2022-10-16 09:55:17,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-10-16 09:55:17,265 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:17,265 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:17,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 09:55:17,266 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:55:17,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:17,266 INFO L85 PathProgramCache]: Analyzing trace with hash -565554628, now seen corresponding path program 1 times [2022-10-16 09:55:17,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:17,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617575831] [2022-10-16 09:55:17,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:17,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:17,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:17,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-10-16 09:55:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:17,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-16 09:55:17,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:17,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1942 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1941 trivial. 0 not checked. [2022-10-16 09:55:17,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:17,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617575831] [2022-10-16 09:55:17,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617575831] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:17,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:55:17,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:55:17,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899605616] [2022-10-16 09:55:17,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:17,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:55:17,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:17,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:55:17,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:55:17,421 INFO L87 Difference]: Start difference. First operand 170 states and 179 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:55:17,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:17,440 INFO L93 Difference]: Finished difference Result 170 states and 179 transitions. [2022-10-16 09:55:17,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 09:55:17,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 173 [2022-10-16 09:55:17,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:17,442 INFO L225 Difference]: With dead ends: 170 [2022-10-16 09:55:17,442 INFO L226 Difference]: Without dead ends: 169 [2022-10-16 09:55:17,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:55:17,444 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 23 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:17,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 73 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:55:17,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-10-16 09:55:17,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2022-10-16 09:55:17,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 163 states have (on average 1.0674846625766872) internal successors, (174), 165 states have internal predecessors, (174), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:55:17,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 178 transitions. [2022-10-16 09:55:17,453 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 178 transitions. Word has length 173 [2022-10-16 09:55:17,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:17,453 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 178 transitions. [2022-10-16 09:55:17,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:55:17,454 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 178 transitions. [2022-10-16 09:55:17,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-10-16 09:55:17,456 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:17,456 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:17,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 09:55:17,456 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:55:17,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:17,457 INFO L85 PathProgramCache]: Analyzing trace with hash -352324177, now seen corresponding path program 1 times [2022-10-16 09:55:17,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:17,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969436214] [2022-10-16 09:55:17,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:17,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:17,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-10-16 09:55:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:17,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-16 09:55:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:17,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1943 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1940 trivial. 0 not checked. [2022-10-16 09:55:17,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:17,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969436214] [2022-10-16 09:55:17,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969436214] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:55:17,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916084373] [2022-10-16 09:55:17,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:17,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:55:17,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:55:17,742 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 09:55:17,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 09:55:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:17,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-16 09:55:17,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:55:19,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1943 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-10-16 09:55:19,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:55:23,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1943 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-10-16 09:55:23,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916084373] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:55:23,302 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 09:55:23,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 65, 65] total 132 [2022-10-16 09:55:23,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254985992] [2022-10-16 09:55:23,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 09:55:23,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 132 states [2022-10-16 09:55:23,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:23,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2022-10-16 09:55:23,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4168, Invalid=13124, Unknown=0, NotChecked=0, Total=17292 [2022-10-16 09:55:23,315 INFO L87 Difference]: Start difference. First operand 169 states and 178 transitions. Second operand has 132 states, 132 states have (on average 2.272727272727273) internal successors, (300), 131 states have internal predecessors, (300), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-16 09:55:26,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:26,615 INFO L93 Difference]: Finished difference Result 347 states and 397 transitions. [2022-10-16 09:55:26,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-10-16 09:55:26,616 INFO L78 Accepts]: Start accepts. Automaton has has 132 states, 132 states have (on average 2.272727272727273) internal successors, (300), 131 states have internal predecessors, (300), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 174 [2022-10-16 09:55:26,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:26,619 INFO L225 Difference]: With dead ends: 347 [2022-10-16 09:55:26,619 INFO L226 Difference]: Without dead ends: 305 [2022-10-16 09:55:26,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7657 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=10187, Invalid=27643, Unknown=0, NotChecked=0, Total=37830 [2022-10-16 09:55:26,630 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 496 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:26,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 430 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 09:55:26,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-10-16 09:55:26,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 300. [2022-10-16 09:55:26,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 294 states have (on average 1.0374149659863945) internal successors, (305), 296 states have internal predecessors, (305), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:55:26,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 309 transitions. [2022-10-16 09:55:26,643 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 309 transitions. Word has length 174 [2022-10-16 09:55:26,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:26,644 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 309 transitions. [2022-10-16 09:55:26,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 132 states, 132 states have (on average 2.272727272727273) internal successors, (300), 131 states have internal predecessors, (300), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-16 09:55:26,644 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 309 transitions. [2022-10-16 09:55:26,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-10-16 09:55:26,648 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:26,649 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:26,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 09:55:26,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 09:55:26,861 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:55:26,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:26,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1117914129, now seen corresponding path program 1 times [2022-10-16 09:55:26,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:26,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759844816] [2022-10-16 09:55:26,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:26,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:27,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-10-16 09:55:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:27,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-10-16 09:55:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:27,203 INFO L134 CoverageAnalysis]: Checked inductivity of 7929 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7925 trivial. 0 not checked. [2022-10-16 09:55:27,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:27,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759844816] [2022-10-16 09:55:27,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759844816] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:27,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:55:27,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 09:55:27,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127317510] [2022-10-16 09:55:27,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:27,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 09:55:27,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:27,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 09:55:27,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 09:55:27,206 INFO L87 Difference]: Start difference. First operand 300 states and 309 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:55:27,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:27,237 INFO L93 Difference]: Finished difference Result 300 states and 309 transitions. [2022-10-16 09:55:27,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 09:55:27,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 304 [2022-10-16 09:55:27,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:27,241 INFO L225 Difference]: With dead ends: 300 [2022-10-16 09:55:27,241 INFO L226 Difference]: Without dead ends: 299 [2022-10-16 09:55:27,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 09:55:27,243 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 22 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:27,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 93 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:55:27,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2022-10-16 09:55:27,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2022-10-16 09:55:27,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.034013605442177) internal successors, (304), 295 states have internal predecessors, (304), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:55:27,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 308 transitions. [2022-10-16 09:55:27,256 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 308 transitions. Word has length 304 [2022-10-16 09:55:27,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:27,257 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 308 transitions. [2022-10-16 09:55:27,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:55:27,258 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 308 transitions. [2022-10-16 09:55:27,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-10-16 09:55:27,295 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:55:27,295 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:27,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 09:55:27,296 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:55:27,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:55:27,297 INFO L85 PathProgramCache]: Analyzing trace with hash 295599744, now seen corresponding path program 1 times [2022-10-16 09:55:27,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:55:27,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814140080] [2022-10-16 09:55:27,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:55:27,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:55:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:27,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-10-16 09:55:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:27,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-10-16 09:55:27,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:55:27,724 INFO L134 CoverageAnalysis]: Checked inductivity of 7930 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7927 trivial. 0 not checked. [2022-10-16 09:55:27,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:55:27,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814140080] [2022-10-16 09:55:27,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814140080] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:55:27,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:55:27,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 09:55:27,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945188334] [2022-10-16 09:55:27,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:55:27,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 09:55:27,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:55:27,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 09:55:27,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 09:55:27,728 INFO L87 Difference]: Start difference. First operand 299 states and 308 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:55:27,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:55:27,761 INFO L93 Difference]: Finished difference Result 299 states and 308 transitions. [2022-10-16 09:55:27,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 09:55:27,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 305 [2022-10-16 09:55:27,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:55:27,763 INFO L225 Difference]: With dead ends: 299 [2022-10-16 09:55:27,763 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 09:55:27,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 09:55:27,766 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 20 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:55:27,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 93 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:55:27,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 09:55:27,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 09:55:27,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:55:27,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 09:55:27,768 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 305 [2022-10-16 09:55:27,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:55:27,769 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 09:55:27,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:55:27,769 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 09:55:27,769 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 09:55:27,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-10-16 09:55:27,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-10-16 09:55:27,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-10-16 09:55:27,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-10-16 09:55:27,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-10-16 09:55:27,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-10-16 09:55:27,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-10-16 09:55:27,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-10-16 09:55:27,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 09:55:27,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 09:55:27,897 INFO L899 garLoopResultBuilder]: For program point bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-10-16 09:55:27,897 INFO L899 garLoopResultBuilder]: For program point L23-2(lines 23 25) no Hoare annotation was computed. [2022-10-16 09:55:27,897 INFO L899 garLoopResultBuilder]: For program point L23-3(line 23) no Hoare annotation was computed. [2022-10-16 09:55:27,897 INFO L899 garLoopResultBuilder]: For program point L23-4(line 23) no Hoare annotation was computed. [2022-10-16 09:55:27,897 INFO L899 garLoopResultBuilder]: For program point bAndEXIT(lines 18 27) no Hoare annotation was computed. [2022-10-16 09:55:27,899 INFO L895 garLoopResultBuilder]: At program point L23-5(lines 23 25) the Hoare annotation is: (let ((.cse0 (= abs_24 |old(abs_24)|))) (or (and .cse0 (<= 2 bAnd_~i~0)) (and .cse0 (= bAnd_~i~0 1)))) [2022-10-16 09:55:27,899 INFO L899 garLoopResultBuilder]: For program point L23-6(lines 23 25) no Hoare annotation was computed. [2022-10-16 09:55:27,899 INFO L899 garLoopResultBuilder]: For program point bAndFINAL(lines 18 27) no Hoare annotation was computed. [2022-10-16 09:55:27,899 INFO L899 garLoopResultBuilder]: For program point bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-10-16 09:55:27,900 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2022-10-16 09:55:27,900 INFO L895 garLoopResultBuilder]: At program point bAndENTRY(lines 18 27) the Hoare annotation is: (= abs_24 |old(abs_24)|) [2022-10-16 09:55:27,900 INFO L899 garLoopResultBuilder]: For program point L24-2(line 24) no Hoare annotation was computed. [2022-10-16 09:55:27,900 INFO L899 garLoopResultBuilder]: For program point L24-4(line 24) no Hoare annotation was computed. [2022-10-16 09:55:27,900 INFO L899 garLoopResultBuilder]: For program point L24-6(line 24) no Hoare annotation was computed. [2022-10-16 09:55:27,900 INFO L899 garLoopResultBuilder]: For program point L24-8(line 24) no Hoare annotation was computed. [2022-10-16 09:55:27,900 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2022-10-16 09:55:27,900 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 54) no Hoare annotation was computed. [2022-10-16 09:55:27,901 INFO L899 garLoopResultBuilder]: For program point L52-2(lines 52 54) no Hoare annotation was computed. [2022-10-16 09:55:27,902 INFO L895 garLoopResultBuilder]: At program point L44(line 44) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~i~1#1|) [2022-10-16 09:55:27,902 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2022-10-16 09:55:27,902 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 09:55:27,902 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-10-16 09:55:27,902 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 09:55:27,902 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2022-10-16 09:55:27,902 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 09:55:27,903 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-10-16 09:55:27,903 INFO L899 garLoopResultBuilder]: For program point L37-2(lines 37 39) no Hoare annotation was computed. [2022-10-16 09:55:27,904 INFO L899 garLoopResultBuilder]: For program point L37-3(line 37) no Hoare annotation was computed. [2022-10-16 09:55:27,906 INFO L899 garLoopResultBuilder]: For program point L37-4(line 37) no Hoare annotation was computed. [2022-10-16 09:55:27,907 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-10-16 09:55:27,907 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 09:55:27,907 INFO L895 garLoopResultBuilder]: At program point L37-5(lines 37 39) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~1#1| 0) (<= 1 |ULTIMATE.start_main_~i~1#1|)) [2022-10-16 09:55:27,907 INFO L895 garLoopResultBuilder]: At program point L37-6(lines 37 39) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~i~1#1|) [2022-10-16 09:55:27,907 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2022-10-16 09:55:27,908 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~i~1#1|) [2022-10-16 09:55:27,908 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2022-10-16 09:55:27,908 INFO L899 garLoopResultBuilder]: For program point L46-2(lines 46 48) no Hoare annotation was computed. [2022-10-16 09:55:27,908 INFO L899 garLoopResultBuilder]: For program point L46-3(line 46) no Hoare annotation was computed. [2022-10-16 09:55:27,908 INFO L899 garLoopResultBuilder]: For program point L46-4(line 46) no Hoare annotation was computed. [2022-10-16 09:55:27,908 INFO L895 garLoopResultBuilder]: At program point L46-5(lines 46 48) the Hoare annotation is: (and (<= 0 (+ 2147483649 |ULTIMATE.start_main_~i~2#1|)) (<= 1 |ULTIMATE.start_main_~i~1#1|)) [2022-10-16 09:55:27,908 INFO L899 garLoopResultBuilder]: For program point L46-6(lines 46 48) no Hoare annotation was computed. [2022-10-16 09:55:27,909 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2022-10-16 09:55:27,909 INFO L902 garLoopResultBuilder]: At program point L55(lines 29 56) the Hoare annotation is: true [2022-10-16 09:55:27,909 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-10-16 09:55:27,909 INFO L899 garLoopResultBuilder]: For program point L47-1(line 47) no Hoare annotation was computed. [2022-10-16 09:55:27,913 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:55:27,917 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 09:55:27,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 09:55:27 BoogieIcfgContainer [2022-10-16 09:55:27,937 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 09:55:27,939 INFO L158 Benchmark]: Toolchain (without parser) took 22485.55ms. Allocated memory was 155.2MB in the beginning and 335.5MB in the end (delta: 180.4MB). Free memory was 129.9MB in the beginning and 204.7MB in the end (delta: -74.8MB). Peak memory consumption was 106.5MB. Max. memory is 8.0GB. [2022-10-16 09:55:27,940 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 155.2MB. Free memory was 125.4MB in the beginning and 125.3MB in the end (delta: 142.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 09:55:27,941 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.30ms. Allocated memory is still 155.2MB. Free memory was 129.7MB in the beginning and 119.5MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-16 09:55:27,941 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.46ms. Allocated memory is still 155.2MB. Free memory was 119.5MB in the beginning and 117.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 09:55:27,942 INFO L158 Benchmark]: Boogie Preprocessor took 56.28ms. Allocated memory is still 155.2MB. Free memory was 117.8MB in the beginning and 116.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 09:55:27,942 INFO L158 Benchmark]: RCFGBuilder took 504.65ms. Allocated memory is still 155.2MB. Free memory was 116.3MB in the beginning and 103.3MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-10-16 09:55:27,942 INFO L158 Benchmark]: TraceAbstraction took 21536.24ms. Allocated memory was 155.2MB in the beginning and 335.5MB in the end (delta: 180.4MB). Free memory was 102.6MB in the beginning and 204.7MB in the end (delta: -102.1MB). Peak memory consumption was 79.2MB. Max. memory is 8.0GB. [2022-10-16 09:55:27,947 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 155.2MB. Free memory was 125.4MB in the beginning and 125.3MB in the end (delta: 142.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 302.30ms. Allocated memory is still 155.2MB. Free memory was 129.7MB in the beginning and 119.5MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 69.46ms. Allocated memory is still 155.2MB. Free memory was 119.5MB in the beginning and 117.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 56.28ms. Allocated memory is still 155.2MB. Free memory was 117.8MB in the beginning and 116.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 504.65ms. Allocated memory is still 155.2MB. Free memory was 116.3MB in the beginning and 103.3MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 21536.24ms. Allocated memory was 155.2MB in the beginning and 335.5MB in the end (delta: 180.4MB). Free memory was 102.6MB in the beginning and 204.7MB in the end (delta: -102.1MB). Peak memory consumption was 79.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 21.4s, OverallIterations: 17, TraceHistogramMax: 63, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1117 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1115 mSDsluCounter, 2780 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2158 mSDsCounter, 96 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1242 IncrementalHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 96 mSolverCounterUnsat, 622 mSDtfsCounter, 1242 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1245 GetRequests, 794 SyntacticMatches, 0 SemanticMatches, 451 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10556 ImplicationChecksByTransitivity, 10.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=300occurred in iteration=15, InterpolantAutomatonStates: 304, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 35 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 48 PreInvPairs, 126 NumberOfFragments, 44 HoareAnnotationTreeSize, 48 FomulaSimplifications, 566 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 33 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 11.4s InterpolantComputationTime, 2268 NumberOfCodeBlocks, 2212 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2593 ConstructedInterpolants, 0 QuantifiedInterpolants, 3959 SizeOfPredicates, 61 NumberOfNonLiveVariables, 2088 ConjunctsInSsa, 138 ConjunctsInUnsatCore, 31 InterpolantComputations, 12 PerfectInterpolantSequences, 24551/30005 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (unknown-abs_24-unknown == \old(unknown-abs_24-unknown) && 2 <= i) || (unknown-abs_24-unknown == \old(unknown-abs_24-unknown) && i == 1) - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 0 <= 2147483649 + i && 1 <= i - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-10-16 09:55:28,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...