/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-fpi/brs3f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:22:34,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:22:34,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:22:34,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 10:22:34,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 10:22:34,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 10:22:34,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 10:22:34,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 10:22:34,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 10:22:34,918 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 10:22:34,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 10:22:34,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 10:22:34,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 10:22:34,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 10:22:34,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 10:22:34,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 10:22:34,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 10:22:34,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 10:22:34,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 10:22:34,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 10:22:34,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 10:22:34,951 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 10:22:34,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 10:22:34,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 10:22:34,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 10:22:34,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:22:34,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:22:34,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:22:34,967 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 10:22:34,994 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:22:34,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:22:34,995 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:22:34,995 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:22:34,996 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:22:34,996 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:22:34,997 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:22:34,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:22:34,997 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:22:34,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:22:34,997 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:22:34,998 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:22:34,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:22:34,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:22:34,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:22:34,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:22:34,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:22:34,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:22:34,999 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:22:34,999 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:22:34,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:22:34,999 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:22:35,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:22:35,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:22:35,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:22:35,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:22:35,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:22:35,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:22:35,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:22:35,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:22:35,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:22:35,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:22:35,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:22:35,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:22:35,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:22:35,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:22:35,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:22:35,402 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:22:35,402 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:22:35,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/brs3f.c [2022-10-16 10:22:35,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d13b270f/ca97411fbc35436f9f2c1352f81415c2/FLAGacb420cb7 [2022-10-16 10:22:36,130 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:22:36,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/brs3f.c [2022-10-16 10:22:36,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d13b270f/ca97411fbc35436f9f2c1352f81415c2/FLAGacb420cb7 [2022-10-16 10:22:36,498 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d13b270f/ca97411fbc35436f9f2c1352f81415c2 [2022-10-16 10:22:36,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:22:36,506 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:22:36,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:22:36,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:22:36,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:22:36,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:22:36" (1/1) ... [2022-10-16 10:22:36,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bfebe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:22:36, skipping insertion in model container [2022-10-16 10:22:36,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:22:36" (1/1) ... [2022-10-16 10:22:36,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:22:36,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:22:36,787 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/brs3f.c[588,601] [2022-10-16 10:22:36,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:22:36,830 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:22:36,848 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/brs3f.c[588,601] [2022-10-16 10:22:36,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:22:36,897 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:22:36,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:22:36 WrapperNode [2022-10-16 10:22:36,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:22:36,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:22:36,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:22:36,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:22:36,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:22:36" (1/1) ... [2022-10-16 10:22:36,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:22:36" (1/1) ... [2022-10-16 10:22:36,968 INFO L138 Inliner]: procedures = 17, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2022-10-16 10:22:36,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:22:36,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:22:36,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:22:36,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:22:36,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:22:36" (1/1) ... [2022-10-16 10:22:36,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:22:36" (1/1) ... [2022-10-16 10:22:36,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:22:36" (1/1) ... [2022-10-16 10:22:36,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:22:36" (1/1) ... [2022-10-16 10:22:37,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:22:36" (1/1) ... [2022-10-16 10:22:37,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:22:36" (1/1) ... [2022-10-16 10:22:37,018 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:22:36" (1/1) ... [2022-10-16 10:22:37,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:22:36" (1/1) ... [2022-10-16 10:22:37,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:22:37,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:22:37,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:22:37,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:22:37,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:22:36" (1/1) ... [2022-10-16 10:22:37,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:22:37,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:22:37,080 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 10:22:37,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 10:22:37,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:22:37,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:22:37,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:22:37,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:22:37,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 10:22:37,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:22:37,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:22:37,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:22:37,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:22:37,259 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:22:37,263 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:22:37,532 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:22:37,550 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:22:37,550 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 10:22:37,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:22:37 BoogieIcfgContainer [2022-10-16 10:22:37,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:22:37,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:22:37,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:22:37,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:22:37,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:22:36" (1/3) ... [2022-10-16 10:22:37,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afd4605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:22:37, skipping insertion in model container [2022-10-16 10:22:37,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:22:36" (2/3) ... [2022-10-16 10:22:37,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afd4605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:22:37, skipping insertion in model container [2022-10-16 10:22:37,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:22:37" (3/3) ... [2022-10-16 10:22:37,574 INFO L112 eAbstractionObserver]: Analyzing ICFG brs3f.c [2022-10-16 10:22:37,598 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:22:37,599 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-10-16 10:22:37,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:22:37,682 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;@54fea996, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:22:37,683 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-10-16 10:22:37,689 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 34 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:37,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 10:22:37,696 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:22:37,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:22:37,698 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:22:37,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:22:37,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1211599500, now seen corresponding path program 1 times [2022-10-16 10:22:37,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:22:37,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457205444] [2022-10-16 10:22:37,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:37,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:22:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:37,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:37,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:22:37,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457205444] [2022-10-16 10:22:37,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457205444] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:22:37,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:22:37,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:22:37,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771013765] [2022-10-16 10:22:37,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:22:37,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 10:22:37,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:22:37,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 10:22:37,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 10:22:37,932 INFO L87 Difference]: Start difference. First operand has 35 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 34 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:37,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:22:37,952 INFO L93 Difference]: Finished difference Result 66 states and 80 transitions. [2022-10-16 10:22:37,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 10:22:37,955 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 10:22:37,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:22:37,963 INFO L225 Difference]: With dead ends: 66 [2022-10-16 10:22:37,964 INFO L226 Difference]: Without dead ends: 29 [2022-10-16 10:22:37,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 10:22:37,972 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:22:37,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:22:37,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-10-16 10:22:38,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-10-16 10:22:38,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 28 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:38,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2022-10-16 10:22:38,012 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 9 [2022-10-16 10:22:38,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:22:38,013 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-10-16 10:22:38,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:38,013 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2022-10-16 10:22:38,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 10:22:38,014 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:22:38,014 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:22:38,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:22:38,015 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:22:38,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:22:38,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1268857802, now seen corresponding path program 1 times [2022-10-16 10:22:38,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:22:38,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090123688] [2022-10-16 10:22:38,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:38,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:22:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:38,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:38,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:22:38,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090123688] [2022-10-16 10:22:38,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090123688] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:22:38,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:22:38,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:22:38,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941675538] [2022-10-16 10:22:38,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:22:38,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:22:38,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:22:38,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:22:38,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:22:38,239 INFO L87 Difference]: Start difference. First operand 29 states and 32 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 10:22:38,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:22:38,317 INFO L93 Difference]: Finished difference Result 71 states and 82 transitions. [2022-10-16 10:22:38,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:22:38,318 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 10:22:38,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:22:38,319 INFO L225 Difference]: With dead ends: 71 [2022-10-16 10:22:38,319 INFO L226 Difference]: Without dead ends: 47 [2022-10-16 10:22:38,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:22:38,322 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 15 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:22:38,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 58 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:22:38,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-10-16 10:22:38,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 36. [2022-10-16 10:22:38,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 35 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:38,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2022-10-16 10:22:38,331 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 9 [2022-10-16 10:22:38,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:22:38,331 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2022-10-16 10:22:38,332 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 10:22:38,332 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2022-10-16 10:22:38,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:22:38,332 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:22:38,333 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:22:38,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:22:38,333 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:22:38,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:22:38,334 INFO L85 PathProgramCache]: Analyzing trace with hash 678411221, now seen corresponding path program 1 times [2022-10-16 10:22:38,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:22:38,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253503271] [2022-10-16 10:22:38,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:38,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:22:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:38,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:38,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:22:38,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253503271] [2022-10-16 10:22:38,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253503271] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:22:38,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:22:38,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:22:38,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816728652] [2022-10-16 10:22:38,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:22:38,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:22:38,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:22:38,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:22:38,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:22:38,433 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:38,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:22:38,482 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2022-10-16 10:22:38,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:22:38,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 10:22:38,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:22:38,484 INFO L225 Difference]: With dead ends: 59 [2022-10-16 10:22:38,484 INFO L226 Difference]: Without dead ends: 39 [2022-10-16 10:22:38,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:22:38,486 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 49 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:22:38,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 32 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:22:38,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-16 10:22:38,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2022-10-16 10:22:38,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:38,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-10-16 10:22:38,494 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 10 [2022-10-16 10:22:38,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:22:38,495 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-10-16 10:22:38,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:38,495 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-10-16 10:22:38,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 10:22:38,496 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:22:38,496 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:22:38,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 10:22:38,497 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:22:38,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:22:38,498 INFO L85 PathProgramCache]: Analyzing trace with hash -617687974, now seen corresponding path program 1 times [2022-10-16 10:22:38,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:22:38,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789972643] [2022-10-16 10:22:38,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:38,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:22:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:38,751 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:38,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:22:38,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789972643] [2022-10-16 10:22:38,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789972643] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:22:38,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648294456] [2022-10-16 10:22:38,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:38,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:22:38,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:22:38,755 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:22:38,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 10:22:38,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:38,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:22:38,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:22:38,905 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:38,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:22:38,963 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:38,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648294456] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:22:38,963 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:22:38,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:22:38,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454858979] [2022-10-16 10:22:38,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:22:38,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:22:38,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:22:38,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:22:38,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:22:38,967 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:39,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:22:39,188 INFO L93 Difference]: Finished difference Result 65 states and 77 transitions. [2022-10-16 10:22:39,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 10:22:39,189 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 10:22:39,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:22:39,192 INFO L225 Difference]: With dead ends: 65 [2022-10-16 10:22:39,192 INFO L226 Difference]: Without dead ends: 64 [2022-10-16 10:22:39,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2022-10-16 10:22:39,196 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 82 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:22:39,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 67 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:22:39,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-16 10:22:39,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 51. [2022-10-16 10:22:39,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 50 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:39,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2022-10-16 10:22:39,207 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 14 [2022-10-16 10:22:39,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:22:39,208 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2022-10-16 10:22:39,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:39,208 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2022-10-16 10:22:39,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 10:22:39,209 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:22:39,209 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:22:39,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 10:22:39,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:22:39,425 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:22:39,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:22:39,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1968457947, now seen corresponding path program 1 times [2022-10-16 10:22:39,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:22:39,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470224213] [2022-10-16 10:22:39,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:39,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:22:39,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:39,570 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:39,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:22:39,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470224213] [2022-10-16 10:22:39,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470224213] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:22:39,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596249322] [2022-10-16 10:22:39,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:39,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:22:39,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:22:39,573 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:22:39,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 10:22:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:39,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:22:39,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:22:39,695 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:39,696 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:22:39,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596249322] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:22:39,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:22:39,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:22:39,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726113619] [2022-10-16 10:22:39,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:22:39,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:22:39,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:22:39,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:22:39,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:22:39,699 INFO L87 Difference]: Start difference. First operand 51 states and 63 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:39,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:22:39,769 INFO L93 Difference]: Finished difference Result 56 states and 68 transitions. [2022-10-16 10:22:39,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:22:39,770 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 10:22:39,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:22:39,771 INFO L225 Difference]: With dead ends: 56 [2022-10-16 10:22:39,772 INFO L226 Difference]: Without dead ends: 55 [2022-10-16 10:22:39,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:22:39,774 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 17 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:22:39,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 67 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:22:39,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-10-16 10:22:39,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 47. [2022-10-16 10:22:39,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 46 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:39,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2022-10-16 10:22:39,783 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 15 [2022-10-16 10:22:39,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:22:39,784 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2022-10-16 10:22:39,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:39,784 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2022-10-16 10:22:39,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 10:22:39,785 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:22:39,785 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:22:39,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 10:22:40,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:22:40,001 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:22:40,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:22:40,003 INFO L85 PathProgramCache]: Analyzing trace with hash -938336469, now seen corresponding path program 1 times [2022-10-16 10:22:40,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:22:40,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585631871] [2022-10-16 10:22:40,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:40,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:22:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:40,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:22:40,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:22:40,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585631871] [2022-10-16 10:22:40,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585631871] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:22:40,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:22:40,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:22:40,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441215838] [2022-10-16 10:22:40,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:22:40,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:22:40,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:22:40,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:22:40,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:22:40,154 INFO L87 Difference]: Start difference. First operand 47 states and 56 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:40,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:22:40,210 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2022-10-16 10:22:40,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:22:40,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 10:22:40,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:22:40,211 INFO L225 Difference]: With dead ends: 55 [2022-10-16 10:22:40,212 INFO L226 Difference]: Without dead ends: 53 [2022-10-16 10:22:40,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:22:40,219 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 7 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:22:40,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 53 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:22:40,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-10-16 10:22:40,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 50. [2022-10-16 10:22:40,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 49 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:40,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2022-10-16 10:22:40,240 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 16 [2022-10-16 10:22:40,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:22:40,241 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2022-10-16 10:22:40,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:40,241 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2022-10-16 10:22:40,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 10:22:40,244 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:22:40,245 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:22:40,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 10:22:40,246 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:22:40,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:22:40,246 INFO L85 PathProgramCache]: Analyzing trace with hash 645044444, now seen corresponding path program 1 times [2022-10-16 10:22:40,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:22:40,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735311163] [2022-10-16 10:22:40,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:40,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:22:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:40,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:22:40,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:22:40,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735311163] [2022-10-16 10:22:40,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735311163] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:22:40,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060010966] [2022-10-16 10:22:40,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:40,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:22:40,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:22:40,428 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:22:40,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 10:22:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:40,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:22:40,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:22:40,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:22:40,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:22:40,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:22:40,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060010966] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:22:40,610 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:22:40,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:22:40,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332606780] [2022-10-16 10:22:40,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:22:40,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:22:40,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:22:40,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:22:40,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:22:40,613 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:40,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:22:40,830 INFO L93 Difference]: Finished difference Result 103 states and 117 transitions. [2022-10-16 10:22:40,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-16 10:22:40,831 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 10:22:40,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:22:40,832 INFO L225 Difference]: With dead ends: 103 [2022-10-16 10:22:40,832 INFO L226 Difference]: Without dead ends: 98 [2022-10-16 10:22:40,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:22:40,834 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 104 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:22:40,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 121 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:22:40,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-10-16 10:22:40,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 68. [2022-10-16 10:22:40,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 62 states have (on average 1.3548387096774193) internal successors, (84), 67 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:40,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 84 transitions. [2022-10-16 10:22:40,842 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 84 transitions. Word has length 20 [2022-10-16 10:22:40,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:22:40,843 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 84 transitions. [2022-10-16 10:22:40,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:40,843 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 84 transitions. [2022-10-16 10:22:40,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 10:22:40,844 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:22:40,844 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:22:40,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 10:22:41,060 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 10:22:41,061 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:22:41,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:22:41,063 INFO L85 PathProgramCache]: Analyzing trace with hash 645045918, now seen corresponding path program 1 times [2022-10-16 10:22:41,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:22:41,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118349192] [2022-10-16 10:22:41,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:41,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:22:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:41,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:41,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:22:41,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118349192] [2022-10-16 10:22:41,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118349192] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:22:41,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526403814] [2022-10-16 10:22:41,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:41,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:22:41,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:22:41,190 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:22:41,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 10:22:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:41,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:22:41,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:22:41,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:41,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:22:41,441 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:41,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526403814] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:22:41,441 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:22:41,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 10:22:41,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174085004] [2022-10-16 10:22:41,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:22:41,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:22:41,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:22:41,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:22:41,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:22:41,446 INFO L87 Difference]: Start difference. First operand 68 states and 84 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:41,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:22:41,654 INFO L93 Difference]: Finished difference Result 92 states and 109 transitions. [2022-10-16 10:22:41,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 10:22:41,655 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 10:22:41,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:22:41,656 INFO L225 Difference]: With dead ends: 92 [2022-10-16 10:22:41,656 INFO L226 Difference]: Without dead ends: 71 [2022-10-16 10:22:41,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2022-10-16 10:22:41,657 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 34 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:22:41,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 120 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:22:41,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-10-16 10:22:41,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 68. [2022-10-16 10:22:41,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 67 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:41,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 83 transitions. [2022-10-16 10:22:41,665 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 83 transitions. Word has length 20 [2022-10-16 10:22:41,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:22:41,665 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 83 transitions. [2022-10-16 10:22:41,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:41,666 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 83 transitions. [2022-10-16 10:22:41,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 10:22:41,667 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:22:41,667 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:22:41,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 10:22:41,881 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 10:22:41,882 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:22:41,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:22:41,883 INFO L85 PathProgramCache]: Analyzing trace with hash -560029876, now seen corresponding path program 1 times [2022-10-16 10:22:41,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:22:41,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383319894] [2022-10-16 10:22:41,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:41,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:22:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:42,402 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:42,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:22:42,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383319894] [2022-10-16 10:22:42,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383319894] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:22:42,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331523052] [2022-10-16 10:22:42,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:42,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:22:42,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:22:42,404 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:22:42,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 10:22:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:42,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 10:22:42,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:22:42,585 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 10:22:42,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:22:42,691 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-16 10:22:42,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:22:42,837 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-10-16 10:22:42,860 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:42,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:22:49,248 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_125 Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (or (not (<= v_ArrVal_125 0)) (< (+ v_ArrVal_125 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_125)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) 9223372036854775808))) is different from false [2022-10-16 10:22:49,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 78 [2022-10-16 10:22:50,299 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2022-10-16 10:22:50,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331523052] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:22:50,299 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:22:50,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 29 [2022-10-16 10:22:50,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114061204] [2022-10-16 10:22:50,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:22:50,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-10-16 10:22:50,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:22:50,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-10-16 10:22:50,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=713, Unknown=3, NotChecked=54, Total=870 [2022-10-16 10:22:50,302 INFO L87 Difference]: Start difference. First operand 68 states and 83 transitions. Second operand has 30 states, 29 states have (on average 2.310344827586207) internal successors, (67), 30 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:50,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:22:50,908 INFO L93 Difference]: Finished difference Result 148 states and 186 transitions. [2022-10-16 10:22:50,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 10:22:50,909 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 2.310344827586207) internal successors, (67), 30 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 10:22:50,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:22:50,910 INFO L225 Difference]: With dead ends: 148 [2022-10-16 10:22:50,910 INFO L226 Difference]: Without dead ends: 87 [2022-10-16 10:22:50,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=216, Invalid=1267, Unknown=3, NotChecked=74, Total=1560 [2022-10-16 10:22:50,912 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 119 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 71 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:22:50,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 133 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 286 Invalid, 0 Unknown, 71 Unchecked, 0.2s Time] [2022-10-16 10:22:50,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-10-16 10:22:50,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 76. [2022-10-16 10:22:50,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 70 states have (on average 1.3) internal successors, (91), 75 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:50,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 91 transitions. [2022-10-16 10:22:50,922 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 91 transitions. Word has length 25 [2022-10-16 10:22:50,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:22:50,922 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 91 transitions. [2022-10-16 10:22:50,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 2.310344827586207) internal successors, (67), 30 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:50,923 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 91 transitions. [2022-10-16 10:22:50,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 10:22:50,924 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:22:50,924 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:22:50,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 10:22:51,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:22:51,126 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:22:51,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:22:51,127 INFO L85 PathProgramCache]: Analyzing trace with hash 2097992522, now seen corresponding path program 1 times [2022-10-16 10:22:51,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:22:51,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990667069] [2022-10-16 10:22:51,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:51,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:22:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:51,258 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:22:51,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:22:51,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990667069] [2022-10-16 10:22:51,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990667069] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:22:51,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166498891] [2022-10-16 10:22:51,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:51,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:22:51,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:22:51,261 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:22:51,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 10:22:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:51,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:22:51,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:22:51,356 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:22:51,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:22:51,393 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:22:51,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166498891] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:22:51,394 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:22:51,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:22:51,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674470166] [2022-10-16 10:22:51,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:22:51,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:22:51,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:22:51,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:22:51,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:22:51,399 INFO L87 Difference]: Start difference. First operand 76 states and 91 transitions. Second operand has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:51,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:22:51,542 INFO L93 Difference]: Finished difference Result 127 states and 157 transitions. [2022-10-16 10:22:51,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:22:51,545 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-16 10:22:51,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:22:51,548 INFO L225 Difference]: With dead ends: 127 [2022-10-16 10:22:51,548 INFO L226 Difference]: Without dead ends: 126 [2022-10-16 10:22:51,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 10:22:51,550 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 51 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:22:51,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 141 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:22:51,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-10-16 10:22:51,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 108. [2022-10-16 10:22:51,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 102 states have (on average 1.3823529411764706) internal successors, (141), 107 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:51,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 141 transitions. [2022-10-16 10:22:51,575 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 141 transitions. Word has length 28 [2022-10-16 10:22:51,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:22:51,575 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 141 transitions. [2022-10-16 10:22:51,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:51,576 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 141 transitions. [2022-10-16 10:22:51,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 10:22:51,578 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:22:51,578 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:22:51,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 10:22:51,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:22:51,793 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:22:51,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:22:51,795 INFO L85 PathProgramCache]: Analyzing trace with hash 613258832, now seen corresponding path program 1 times [2022-10-16 10:22:51,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:22:51,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556867056] [2022-10-16 10:22:51,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:51,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:22:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:51,877 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:22:51,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:22:51,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556867056] [2022-10-16 10:22:51,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556867056] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:22:51,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798310963] [2022-10-16 10:22:51,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:51,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:22:51,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:22:51,887 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:22:51,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 10:22:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:51,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:22:51,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:22:52,000 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:22:52,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:22:52,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798310963] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:22:52,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:22:52,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:22:52,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362856989] [2022-10-16 10:22:52,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:22:52,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:22:52,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:22:52,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:22:52,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:22:52,003 INFO L87 Difference]: Start difference. First operand 108 states and 141 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:52,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:22:52,053 INFO L93 Difference]: Finished difference Result 174 states and 233 transitions. [2022-10-16 10:22:52,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:22:52,054 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-16 10:22:52,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:22:52,055 INFO L225 Difference]: With dead ends: 174 [2022-10-16 10:22:52,055 INFO L226 Difference]: Without dead ends: 107 [2022-10-16 10:22:52,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:22:52,057 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 25 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:22:52,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 39 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:22:52,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-10-16 10:22:52,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-10-16 10:22:52,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 102 states have (on average 1.2647058823529411) internal successors, (129), 106 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:52,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 129 transitions. [2022-10-16 10:22:52,066 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 129 transitions. Word has length 29 [2022-10-16 10:22:52,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:22:52,066 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 129 transitions. [2022-10-16 10:22:52,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:52,067 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 129 transitions. [2022-10-16 10:22:52,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 10:22:52,068 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:22:52,068 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:22:52,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 10:22:52,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:22:52,282 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:22:52,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:22:52,283 INFO L85 PathProgramCache]: Analyzing trace with hash -336710648, now seen corresponding path program 1 times [2022-10-16 10:22:52,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:22:52,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274866069] [2022-10-16 10:22:52,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:52,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:22:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:52,462 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:52,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:22:52,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274866069] [2022-10-16 10:22:52,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274866069] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:22:52,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964010118] [2022-10-16 10:22:52,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:52,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:22:52,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:22:52,476 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:22:52,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 10:22:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:52,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 10:22:52,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:22:52,652 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:52,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:22:52,805 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:52,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964010118] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:22:52,806 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:22:52,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-10-16 10:22:52,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427653726] [2022-10-16 10:22:52,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:22:52,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 10:22:52,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:22:52,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 10:22:52,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-10-16 10:22:52,809 INFO L87 Difference]: Start difference. First operand 107 states and 129 transitions. Second operand has 24 states, 23 states have (on average 2.608695652173913) internal successors, (60), 24 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:53,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:22:53,085 INFO L93 Difference]: Finished difference Result 178 states and 231 transitions. [2022-10-16 10:22:53,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 10:22:53,086 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.608695652173913) internal successors, (60), 24 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-16 10:22:53,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:22:53,089 INFO L225 Difference]: With dead ends: 178 [2022-10-16 10:22:53,090 INFO L226 Difference]: Without dead ends: 177 [2022-10-16 10:22:53,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=364, Invalid=826, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 10:22:53,091 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 146 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:22:53,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 83 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:22:53,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-10-16 10:22:53,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 147. [2022-10-16 10:22:53,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 142 states have (on average 1.3028169014084507) internal successors, (185), 146 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:53,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 185 transitions. [2022-10-16 10:22:53,104 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 185 transitions. Word has length 29 [2022-10-16 10:22:53,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:22:53,104 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 185 transitions. [2022-10-16 10:22:53,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.608695652173913) internal successors, (60), 24 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:53,105 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 185 transitions. [2022-10-16 10:22:53,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 10:22:53,106 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:22:53,106 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:22:53,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 10:22:53,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 10:22:53,321 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:22:53,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:22:53,322 INFO L85 PathProgramCache]: Analyzing trace with hash -954056098, now seen corresponding path program 1 times [2022-10-16 10:22:53,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:22:53,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577324609] [2022-10-16 10:22:53,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:53,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:22:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:53,403 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 10:22:53,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:22:53,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577324609] [2022-10-16 10:22:53,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577324609] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:22:53,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245106733] [2022-10-16 10:22:53,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:53,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:22:53,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:22:53,405 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:22:53,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 10:22:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:53,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 10:22:53,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:22:53,545 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:22:53,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:22:53,664 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:22:53,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245106733] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:22:53,664 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:22:53,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 20 [2022-10-16 10:22:53,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707359732] [2022-10-16 10:22:53,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:22:53,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 10:22:53,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:22:53,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 10:22:53,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-10-16 10:22:53,667 INFO L87 Difference]: Start difference. First operand 147 states and 185 transitions. Second operand has 21 states, 20 states have (on average 3.65) internal successors, (73), 21 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:54,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:22:54,105 INFO L93 Difference]: Finished difference Result 302 states and 373 transitions. [2022-10-16 10:22:54,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-10-16 10:22:54,105 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.65) internal successors, (73), 21 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-16 10:22:54,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:22:54,107 INFO L225 Difference]: With dead ends: 302 [2022-10-16 10:22:54,107 INFO L226 Difference]: Without dead ends: 293 [2022-10-16 10:22:54,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=473, Invalid=1507, Unknown=0, NotChecked=0, Total=1980 [2022-10-16 10:22:54,110 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 209 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:22:54,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 152 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:22:54,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-10-16 10:22:54,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 162. [2022-10-16 10:22:54,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.305732484076433) internal successors, (205), 161 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:54,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 205 transitions. [2022-10-16 10:22:54,123 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 205 transitions. Word has length 30 [2022-10-16 10:22:54,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:22:54,123 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 205 transitions. [2022-10-16 10:22:54,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.65) internal successors, (73), 21 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:54,123 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 205 transitions. [2022-10-16 10:22:54,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 10:22:54,124 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:22:54,124 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:22:54,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 10:22:54,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-16 10:22:54,340 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:22:54,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:22:54,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1196938435, now seen corresponding path program 1 times [2022-10-16 10:22:54,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:22:54,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493189655] [2022-10-16 10:22:54,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:54,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:22:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:54,541 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:54,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:22:54,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493189655] [2022-10-16 10:22:54,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493189655] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:22:54,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990506983] [2022-10-16 10:22:54,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:54,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:22:54,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:22:54,543 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:22:54,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 10:22:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:54,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:22:54,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:22:54,744 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:54,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:22:54,861 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:54,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990506983] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:22:54,862 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:22:54,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 22 [2022-10-16 10:22:54,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051790868] [2022-10-16 10:22:54,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:22:54,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 10:22:54,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:22:54,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 10:22:54,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:22:54,866 INFO L87 Difference]: Start difference. First operand 162 states and 205 transitions. Second operand has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:55,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:22:55,127 INFO L93 Difference]: Finished difference Result 215 states and 262 transitions. [2022-10-16 10:22:55,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 10:22:55,128 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-10-16 10:22:55,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:22:55,129 INFO L225 Difference]: With dead ends: 215 [2022-10-16 10:22:55,129 INFO L226 Difference]: Without dead ends: 165 [2022-10-16 10:22:55,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 46 SyntacticMatches, 9 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=199, Invalid=857, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 10:22:55,133 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 90 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:22:55,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 95 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:22:55,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-10-16 10:22:55,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 162. [2022-10-16 10:22:55,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.2929936305732483) internal successors, (203), 161 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:55,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 203 transitions. [2022-10-16 10:22:55,146 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 203 transitions. Word has length 32 [2022-10-16 10:22:55,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:22:55,146 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 203 transitions. [2022-10-16 10:22:55,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:22:55,146 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 203 transitions. [2022-10-16 10:22:55,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 10:22:55,150 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:22:55,150 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:22:55,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 10:22:55,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 10:22:55,365 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:22:55,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:22:55,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1411213589, now seen corresponding path program 2 times [2022-10-16 10:22:55,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:22:55,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27956089] [2022-10-16 10:22:55,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:22:55,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:22:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:22:56,581 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:56,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:22:56,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27956089] [2022-10-16 10:22:56,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27956089] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:22:56,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414973935] [2022-10-16 10:22:56,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:22:56,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:22:56,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:22:56,584 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:22:56,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 10:22:56,660 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:22:56,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:22:56,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 41 conjunts are in the unsatisfiable core [2022-10-16 10:22:56,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:22:56,682 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 10:22:56,779 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 10:22:56,911 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 10:22:57,027 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:22:57,027 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-10-16 10:22:57,282 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-10-16 10:22:57,282 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 51 [2022-10-16 10:22:57,467 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:22:57,467 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 16 [2022-10-16 10:22:57,497 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:22:57,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:23:27,429 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_298 Int) (v_ArrVal_296 Int) (v_ArrVal_294 Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset| 4) v_ArrVal_294)))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (< (+ v_ArrVal_296 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_296)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) v_ArrVal_298) (< (+ v_ArrVal_298 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_298)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) 9223372036854775808) (not (<= v_ArrVal_294 30)) (not (<= v_ArrVal_296 0)))))) is different from false [2022-10-16 10:23:27,460 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:23:27,461 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 691 treesize of output 667 [2022-10-16 10:23:28,613 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 25 refuted. 1 times theorem prover too weak. 0 trivial. 2 not checked. [2022-10-16 10:23:28,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414973935] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:23:28,617 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:23:28,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 17] total 50 [2022-10-16 10:23:28,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220374824] [2022-10-16 10:23:28,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:23:28,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-10-16 10:23:28,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:23:28,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-10-16 10:23:28,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=2173, Unknown=13, NotChecked=96, Total=2550 [2022-10-16 10:23:28,621 INFO L87 Difference]: Start difference. First operand 162 states and 203 transitions. Second operand has 51 states, 50 states have (on average 2.06) internal successors, (103), 51 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:23:30,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:23:30,341 INFO L93 Difference]: Finished difference Result 314 states and 393 transitions. [2022-10-16 10:23:30,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 10:23:30,341 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 2.06) internal successors, (103), 51 states have internal predecessors, (103), 0 states have call successors, (0), 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 37 [2022-10-16 10:23:30,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:23:30,343 INFO L225 Difference]: With dead ends: 314 [2022-10-16 10:23:30,343 INFO L226 Difference]: Without dead ends: 164 [2022-10-16 10:23:30,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1127 ImplicationChecksByTransitivity, 31.3s TimeCoverageRelationStatistics Valid=425, Invalid=3106, Unknown=13, NotChecked=116, Total=3660 [2022-10-16 10:23:30,345 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 147 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 285 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 10:23:30,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 249 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 725 Invalid, 0 Unknown, 285 Unchecked, 0.9s Time] [2022-10-16 10:23:30,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-10-16 10:23:30,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 157. [2022-10-16 10:23:30,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.2763157894736843) internal successors, (194), 156 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:23:30,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 194 transitions. [2022-10-16 10:23:30,358 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 194 transitions. Word has length 37 [2022-10-16 10:23:30,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:23:30,358 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 194 transitions. [2022-10-16 10:23:30,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 2.06) internal successors, (103), 51 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:23:30,359 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 194 transitions. [2022-10-16 10:23:30,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 10:23:30,359 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:23:30,359 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:23:30,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 10:23:30,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 10:23:30,567 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:23:30,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:23:30,568 INFO L85 PathProgramCache]: Analyzing trace with hash -797948215, now seen corresponding path program 1 times [2022-10-16 10:23:30,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:23:30,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183278189] [2022-10-16 10:23:30,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:23:30,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:23:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:23:31,667 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:23:31,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:23:31,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183278189] [2022-10-16 10:23:31,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183278189] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:23:31,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166146296] [2022-10-16 10:23:31,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:23:31,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:23:31,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:23:31,673 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:23:31,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 10:23:31,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:23:31,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-16 10:23:31,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:23:31,750 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 10:23:31,998 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 10:23:32,126 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 10:23:32,280 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-16 10:23:32,503 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-10-16 10:23:32,558 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:23:32,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:23:38,748 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_335 Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (or (< (+ v_ArrVal_335 9223372036854775808) 0) (< 0 (+ v_ArrVal_335 9223372036854775809 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_335)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_#t~post7#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) is different from false [2022-10-16 10:23:40,301 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:23:40,302 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2022-10-16 10:23:40,314 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_1 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (select v_arrayElimArr_1 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< (+ 9223372036854775808 .cse0) 0) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775809 .cse0))))) is different from false [2022-10-16 10:23:40,340 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_1 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (select v_arrayElimArr_1 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< (+ 9223372036854775808 .cse0) 0) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775809 .cse0))))) is different from false [2022-10-16 10:23:40,396 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:23:40,396 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2022-10-16 10:23:40,409 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:23:40,410 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 44 [2022-10-16 10:23:40,424 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:23:40,424 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2022-10-16 10:23:40,542 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 15 not checked. [2022-10-16 10:23:40,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166146296] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:23:40,543 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:23:40,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 15] total 37 [2022-10-16 10:23:40,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038960996] [2022-10-16 10:23:40,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:23:40,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-16 10:23:40,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:23:40,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-16 10:23:40,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1071, Unknown=6, NotChecked=204, Total=1406 [2022-10-16 10:23:40,545 INFO L87 Difference]: Start difference. First operand 157 states and 194 transitions. Second operand has 38 states, 37 states have (on average 2.5405405405405403) internal successors, (94), 38 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:23:41,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:23:41,898 INFO L93 Difference]: Finished difference Result 164 states and 199 transitions. [2022-10-16 10:23:41,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 10:23:41,898 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.5405405405405403) internal successors, (94), 38 states have internal predecessors, (94), 0 states have call successors, (0), 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 38 [2022-10-16 10:23:41,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:23:41,900 INFO L225 Difference]: With dead ends: 164 [2022-10-16 10:23:41,900 INFO L226 Difference]: Without dead ends: 163 [2022-10-16 10:23:41,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 54 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=207, Invalid=1605, Unknown=6, NotChecked=252, Total=2070 [2022-10-16 10:23:41,902 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 98 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 258 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 10:23:41,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 252 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 669 Invalid, 0 Unknown, 258 Unchecked, 0.7s Time] [2022-10-16 10:23:41,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-10-16 10:23:41,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 157. [2022-10-16 10:23:41,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.263157894736842) internal successors, (192), 156 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:23:41,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 192 transitions. [2022-10-16 10:23:41,916 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 192 transitions. Word has length 38 [2022-10-16 10:23:41,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:23:41,916 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 192 transitions. [2022-10-16 10:23:41,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.5405405405405403) internal successors, (94), 38 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:23:41,917 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 192 transitions. [2022-10-16 10:23:41,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 10:23:41,919 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:23:41,919 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:23:41,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 10:23:42,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 10:23:42,135 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:23:42,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:23:42,136 INFO L85 PathProgramCache]: Analyzing trace with hash -785698114, now seen corresponding path program 3 times [2022-10-16 10:23:42,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:23:42,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539144575] [2022-10-16 10:23:42,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:23:42,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:23:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:23:42,571 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 14 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:23:42,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:23:42,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539144575] [2022-10-16 10:23:42,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539144575] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:23:42,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892340522] [2022-10-16 10:23:42,572 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:23:42,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:23:42,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:23:42,574 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:23:42,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 10:23:42,664 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-16 10:23:42,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:23:42,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:23:42,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:23:43,096 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 25 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:23:43,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:23:43,448 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 25 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:23:43,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892340522] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:23:43,449 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:23:43,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 28 [2022-10-16 10:23:43,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234268541] [2022-10-16 10:23:43,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:23:43,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-16 10:23:43,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:23:43,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-16 10:23:43,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2022-10-16 10:23:43,451 INFO L87 Difference]: Start difference. First operand 157 states and 192 transitions. Second operand has 28 states, 28 states have (on average 2.75) internal successors, (77), 28 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:23:43,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:23:43,987 INFO L93 Difference]: Finished difference Result 196 states and 233 transitions. [2022-10-16 10:23:43,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 10:23:43,988 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.75) internal successors, (77), 28 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-10-16 10:23:43,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:23:43,989 INFO L225 Difference]: With dead ends: 196 [2022-10-16 10:23:43,990 INFO L226 Difference]: Without dead ends: 160 [2022-10-16 10:23:43,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 64 SyntacticMatches, 13 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=223, Invalid=1109, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 10:23:43,992 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 71 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:23:43,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 151 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:23:43,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-10-16 10:23:44,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 157. [2022-10-16 10:23:44,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.256578947368421) internal successors, (191), 156 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:23:44,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 191 transitions. [2022-10-16 10:23:44,005 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 191 transitions. Word has length 44 [2022-10-16 10:23:44,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:23:44,005 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 191 transitions. [2022-10-16 10:23:44,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.75) internal successors, (77), 28 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:23:44,005 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 191 transitions. [2022-10-16 10:23:44,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 10:23:44,006 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:23:44,006 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:23:44,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 10:23:44,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 10:23:44,222 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:23:44,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:23:44,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1131840850, now seen corresponding path program 4 times [2022-10-16 10:23:44,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:23:44,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463211649] [2022-10-16 10:23:44,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:23:44,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:23:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:23:47,185 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:23:47,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:23:47,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463211649] [2022-10-16 10:23:47,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463211649] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:23:47,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511303792] [2022-10-16 10:23:47,186 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:23:47,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:23:47,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:23:47,188 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:23:47,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 10:23:47,261 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:23:47,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:23:47,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 55 conjunts are in the unsatisfiable core [2022-10-16 10:23:47,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:23:47,489 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 10:23:47,750 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:23:47,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:23:48,093 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:23:48,094 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-10-16 10:23:48,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:23:48,373 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:23:48,374 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-10-16 10:23:48,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:23:48,970 INFO L356 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-10-16 10:23:48,970 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 63 [2022-10-16 10:23:49,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:23:49,616 INFO L356 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-10-16 10:23:49,616 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 63 [2022-10-16 10:23:50,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:23:50,065 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:23:50,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 21 [2022-10-16 10:23:50,164 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:23:50,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:25:12,389 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_412 Int) (v_ArrVal_410 Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_419 Int) (v_ArrVal_417 Int) (v_ArrVal_415 Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse2 (* |c_ULTIMATE.start_main_#t~post6#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4 .cse2) v_ArrVal_410) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset| .cse2) v_ArrVal_412))))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (< (+ v_ArrVal_415 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_415)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) v_ArrVal_417) (< (+ v_ArrVal_417 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_417)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) v_ArrVal_419) (< (+ v_ArrVal_419 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_419)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|))) 9223372036854775808) (not (<= v_ArrVal_415 0)) (not (<= v_ArrVal_410 30)) (not (<= v_ArrVal_412 3)))))) is different from false [2022-10-16 10:25:37,514 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:25:37,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2828 treesize of output 2780 [2022-10-16 10:25:43,282 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 45 refuted. 8 times theorem prover too weak. 0 trivial. 6 not checked. [2022-10-16 10:25:43,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511303792] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:25:43,283 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:25:43,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24, 24] total 71 [2022-10-16 10:25:43,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546447295] [2022-10-16 10:25:43,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:25:43,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-10-16 10:25:43,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:25:43,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-10-16 10:25:43,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=414, Invalid=4519, Unknown=41, NotChecked=138, Total=5112 [2022-10-16 10:25:43,286 INFO L87 Difference]: Start difference. First operand 157 states and 191 transitions. Second operand has 72 states, 71 states have (on average 1.9577464788732395) internal successors, (139), 72 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:25:48,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:25:48,032 INFO L93 Difference]: Finished difference Result 309 states and 374 transitions. [2022-10-16 10:25:48,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 10:25:48,032 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 71 states have (on average 1.9577464788732395) internal successors, (139), 72 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-10-16 10:25:48,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:25:48,033 INFO L225 Difference]: With dead ends: 309 [2022-10-16 10:25:48,033 INFO L226 Difference]: Without dead ends: 169 [2022-10-16 10:25:48,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 96 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2144 ImplicationChecksByTransitivity, 112.9s TimeCoverageRelationStatistics Valid=882, Invalid=8393, Unknown=41, NotChecked=190, Total=9506 [2022-10-16 10:25:48,038 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 233 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 2132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 671 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:25:48,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 384 Invalid, 2132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1406 Invalid, 0 Unknown, 671 Unchecked, 1.4s Time] [2022-10-16 10:25:48,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-10-16 10:25:48,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 157. [2022-10-16 10:25:48,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.236842105263158) internal successors, (188), 156 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:25:48,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 188 transitions. [2022-10-16 10:25:48,051 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 188 transitions. Word has length 49 [2022-10-16 10:25:48,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:25:48,051 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 188 transitions. [2022-10-16 10:25:48,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 71 states have (on average 1.9577464788732395) internal successors, (139), 72 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:25:48,051 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 188 transitions. [2022-10-16 10:25:48,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 10:25:48,052 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:25:48,052 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:25:48,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 10:25:48,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:25:48,267 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:25:48,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:25:48,268 INFO L85 PathProgramCache]: Analyzing trace with hash -727327898, now seen corresponding path program 2 times [2022-10-16 10:25:48,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:25:48,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88998357] [2022-10-16 10:25:48,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:25:48,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:25:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:25:49,682 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:25:49,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:25:49,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88998357] [2022-10-16 10:25:49,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88998357] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:25:49,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322887916] [2022-10-16 10:25:49,684 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:25:49,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:25:49,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:25:49,685 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:25:49,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 10:25:49,757 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:25:49,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:25:49,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 44 conjunts are in the unsatisfiable core [2022-10-16 10:25:49,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:25:49,768 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 10:25:50,130 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 10:25:50,255 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 10:25:50,408 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 10:25:50,564 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-16 10:25:50,789 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-10-16 10:25:50,847 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:25:50,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:25:51,560 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:25:51,561 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2022-10-16 10:25:51,573 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_3 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (select v_arrayElimArr_3 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< 0 (+ 9223372036854775809 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) .cse0)) (< (+ 9223372036854775808 .cse0) 0)))) is different from false [2022-10-16 10:25:51,618 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_3 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (select v_arrayElimArr_3 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< 0 (+ 9223372036854775809 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_#t~post7#1| 4) 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) .cse0)) (< (+ 9223372036854775808 .cse0) 0)))) is different from false [2022-10-16 10:25:51,643 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_3 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (select v_arrayElimArr_3 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< 0 (+ 9223372036854775809 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) .cse0)) (< (+ 9223372036854775808 .cse0) 0)))) is different from false [2022-10-16 10:25:51,673 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_3 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (select v_arrayElimArr_3 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< 0 (+ 9223372036854775809 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) .cse0)) (< (+ 9223372036854775808 .cse0) 0)))) is different from false [2022-10-16 10:25:51,716 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:25:51,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2022-10-16 10:25:51,729 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:25:51,729 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 44 [2022-10-16 10:25:51,740 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:25:51,740 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2022-10-16 10:25:51,893 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 33 not checked. [2022-10-16 10:25:51,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322887916] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:25:51,893 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:25:51,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 19] total 47 [2022-10-16 10:25:51,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808835964] [2022-10-16 10:25:51,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:25:51,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-10-16 10:25:51,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:25:51,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-10-16 10:25:51,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1731, Unknown=4, NotChecked=348, Total=2256 [2022-10-16 10:25:51,897 INFO L87 Difference]: Start difference. First operand 157 states and 188 transitions. Second operand has 48 states, 47 states have (on average 2.6595744680851063) internal successors, (125), 48 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:25:53,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:25:53,345 INFO L93 Difference]: Finished difference Result 169 states and 197 transitions. [2022-10-16 10:25:53,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 10:25:53,346 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.6595744680851063) internal successors, (125), 48 states have internal predecessors, (125), 0 states have call successors, (0), 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 50 [2022-10-16 10:25:53,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:25:53,347 INFO L225 Difference]: With dead ends: 169 [2022-10-16 10:25:53,347 INFO L226 Difference]: Without dead ends: 168 [2022-10-16 10:25:53,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 72 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 856 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=247, Invalid=2417, Unknown=4, NotChecked=412, Total=3080 [2022-10-16 10:25:53,349 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 135 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 1491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 411 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 10:25:53,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 343 Invalid, 1491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1048 Invalid, 0 Unknown, 411 Unchecked, 0.9s Time] [2022-10-16 10:25:53,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-10-16 10:25:53,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 157. [2022-10-16 10:25:53,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.2236842105263157) internal successors, (186), 156 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:25:53,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 186 transitions. [2022-10-16 10:25:53,364 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 186 transitions. Word has length 50 [2022-10-16 10:25:53,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:25:53,364 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 186 transitions. [2022-10-16 10:25:53,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.6595744680851063) internal successors, (125), 48 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:25:53,364 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 186 transitions. [2022-10-16 10:25:53,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 10:25:53,365 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:25:53,365 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:25:53,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 10:25:53,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:25:53,579 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:25:53,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:25:53,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1525408357, now seen corresponding path program 5 times [2022-10-16 10:25:53,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:25:53,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276301472] [2022-10-16 10:25:53,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:25:53,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:25:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:25:54,132 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 31 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:25:54,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:25:54,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276301472] [2022-10-16 10:25:54,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276301472] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:25:54,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106181611] [2022-10-16 10:25:54,133 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 10:25:54,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:25:54,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:25:54,134 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:25:54,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 10:25:54,261 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-10-16 10:25:54,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:25:54,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-16 10:25:54,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:25:54,823 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 47 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:25:54,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:25:55,239 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 40 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:25:55,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106181611] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:25:55,239 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:25:55,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 34 [2022-10-16 10:25:55,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16127355] [2022-10-16 10:25:55,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:25:55,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 10:25:55,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:25:55,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 10:25:55,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=954, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 10:25:55,242 INFO L87 Difference]: Start difference. First operand 157 states and 186 transitions. Second operand has 34 states, 34 states have (on average 2.764705882352941) internal successors, (94), 34 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:25:55,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:25:55,796 INFO L93 Difference]: Finished difference Result 195 states and 224 transitions. [2022-10-16 10:25:55,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 10:25:55,797 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.764705882352941) internal successors, (94), 34 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-10-16 10:25:55,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:25:55,798 INFO L225 Difference]: With dead ends: 195 [2022-10-16 10:25:55,798 INFO L226 Difference]: Without dead ends: 157 [2022-10-16 10:25:55,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 82 SyntacticMatches, 17 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 943 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=326, Invalid=1744, Unknown=0, NotChecked=0, Total=2070 [2022-10-16 10:25:55,800 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 128 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:25:55,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 155 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:25:55,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-10-16 10:25:55,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2022-10-16 10:25:55,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.2171052631578947) internal successors, (185), 156 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:25:55,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 185 transitions. [2022-10-16 10:25:55,813 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 185 transitions. Word has length 56 [2022-10-16 10:25:55,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:25:55,813 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 185 transitions. [2022-10-16 10:25:55,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.764705882352941) internal successors, (94), 34 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:25:55,814 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 185 transitions. [2022-10-16 10:25:55,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 10:25:55,814 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:25:55,815 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:25:55,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 10:25:56,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:25:56,029 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:25:56,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:25:56,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1295721495, now seen corresponding path program 1 times [2022-10-16 10:25:56,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:25:56,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783063841] [2022-10-16 10:25:56,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:25:56,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:25:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:25:56,451 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:25:56,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:25:56,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783063841] [2022-10-16 10:25:56,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783063841] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:25:56,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831499892] [2022-10-16 10:25:56,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:25:56,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:25:56,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:25:56,454 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:25:56,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 10:25:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:25:56,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 10:25:56,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:25:56,699 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:25:56,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:25:57,292 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:25:57,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831499892] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:25:57,293 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:25:57,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 35 [2022-10-16 10:25:57,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720083831] [2022-10-16 10:25:57,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:25:57,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 10:25:57,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:25:57,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 10:25:57,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 10:25:57,296 INFO L87 Difference]: Start difference. First operand 157 states and 185 transitions. Second operand has 36 states, 35 states have (on average 3.085714285714286) internal successors, (108), 36 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:25:58,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:25:58,349 INFO L93 Difference]: Finished difference Result 309 states and 372 transitions. [2022-10-16 10:25:58,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-16 10:25:58,349 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 3.085714285714286) internal successors, (108), 36 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-10-16 10:25:58,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:25:58,351 INFO L225 Difference]: With dead ends: 309 [2022-10-16 10:25:58,351 INFO L226 Difference]: Without dead ends: 303 [2022-10-16 10:25:58,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 961 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=917, Invalid=3115, Unknown=0, NotChecked=0, Total=4032 [2022-10-16 10:25:58,355 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 241 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:25:58,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 160 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 10:25:58,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-10-16 10:25:58,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 160. [2022-10-16 10:25:58,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 155 states have (on average 1.2258064516129032) internal successors, (190), 159 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:25:58,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 190 transitions. [2022-10-16 10:25:58,375 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 190 transitions. Word has length 57 [2022-10-16 10:25:58,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:25:58,375 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 190 transitions. [2022-10-16 10:25:58,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 3.085714285714286) internal successors, (108), 36 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:25:58,375 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 190 transitions. [2022-10-16 10:25:58,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-16 10:25:58,376 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:25:58,376 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:25:58,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 10:25:58,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:25:58,590 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:25:58,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:25:58,591 INFO L85 PathProgramCache]: Analyzing trace with hash 851934477, now seen corresponding path program 6 times [2022-10-16 10:25:58,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:25:58,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175411829] [2022-10-16 10:25:58,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:25:58,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:25:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:26:02,735 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:26:02,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:26:02,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175411829] [2022-10-16 10:26:02,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175411829] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:26:02,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001817260] [2022-10-16 10:26:02,736 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 10:26:02,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:26:02,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:26:02,737 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:26:02,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 10:26:02,900 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2022-10-16 10:26:02,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:26:02,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 75 conjunts are in the unsatisfiable core [2022-10-16 10:26:02,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:26:02,916 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 10:26:03,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 10:26:03,380 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:26:03,381 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:26:03,689 INFO L356 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-10-16 10:26:03,690 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 36 [2022-10-16 10:26:04,015 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:26:04,016 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-10-16 10:26:04,372 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:26:04,373 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 56 [2022-10-16 10:26:04,976 INFO L356 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-10-16 10:26:04,976 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 72 treesize of output 75 [2022-10-16 10:26:05,593 INFO L356 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-10-16 10:26:05,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 78 treesize of output 75 [2022-10-16 10:26:06,305 INFO L356 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-10-16 10:26:06,306 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 86 treesize of output 77 [2022-10-16 10:26:06,783 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:26:06,784 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 25 [2022-10-16 10:26:06,877 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:26:06,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:26:29,575 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_609 Int) (v_ArrVal_608 Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_615 Int) (v_ArrVal_613 Int) (v_ArrVal_611 Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_608)))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (not (<= v_ArrVal_609 0)) (not (<= v_ArrVal_608 30)) (< (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_611)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) v_ArrVal_611) v_ArrVal_613) (< (+ v_ArrVal_609 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_609)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) v_ArrVal_611) (< (+ v_ArrVal_615 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_615)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|))) 9223372036854775808) (< (+ v_ArrVal_613 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_613)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|))) v_ArrVal_615))))) is different from false [2022-10-16 10:26:31,719 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_609 Int) (v_ArrVal_608 Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_615 Int) (v_ArrVal_613 Int) (v_ArrVal_611 Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4 (* |c_ULTIMATE.start_main_#t~post6#1| 4)) v_ArrVal_608)))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (not (<= v_ArrVal_609 0)) (< (+ v_ArrVal_613 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_613)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|))) v_ArrVal_615) (not (<= v_ArrVal_608 30)) (< (+ v_ArrVal_615 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_615)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|))) 9223372036854775808) (< (+ v_ArrVal_609 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_609)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) v_ArrVal_611) (< (+ v_ArrVal_611 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_611)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) v_ArrVal_613))))) is different from false