/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/termination-15/count_up_and_down_alloca.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:09:04,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:09:04,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:09:04,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:09:04,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:09:04,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:09:04,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:09:04,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:09:04,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:09:04,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:09:04,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:09:04,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:09:04,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:09:04,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:09:04,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:09:04,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:09:04,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:09:04,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:09:04,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:09:04,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:09:04,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:09:04,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:09:04,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:09:04,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:09:04,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 17:09:04,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:09:04,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:09:04,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:09:04,217 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 17:09:04,266 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:09:04,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:09:04,267 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:09:04,267 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:09:04,269 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:09:04,269 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:09:04,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:09:04,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:09:04,272 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:09:04,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:09:04,273 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:09:04,274 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:09:04,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:09:04,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:09:04,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:09:04,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:09:04,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:09:04,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:09:04,275 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:09:04,275 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:09:04,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:09:04,275 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:09:04,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:09:04,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:09:04,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:09:04,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:09:04,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:09:04,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:09:04,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:09:04,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:09:04,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:09:04,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:09:04,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:09:04,278 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:09:04,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:09:04,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:09:04,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:09:04,727 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:09:04,728 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:09:04,729 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i [2022-10-16 17:09:04,809 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db96bb564/db7c6bb0da7446b4904d75359953e45e/FLAGb3e989172 [2022-10-16 17:09:05,407 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:09:05,407 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/count_up_and_down_alloca.i [2022-10-16 17:09:05,420 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db96bb564/db7c6bb0da7446b4904d75359953e45e/FLAGb3e989172 [2022-10-16 17:09:05,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db96bb564/db7c6bb0da7446b4904d75359953e45e [2022-10-16 17:09:05,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:09:05,697 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:09:05,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:09:05,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:09:05,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:09:05,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:09:05" (1/1) ... [2022-10-16 17:09:05,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34cd8078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:05, skipping insertion in model container [2022-10-16 17:09:05,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:09:05" (1/1) ... [2022-10-16 17:09:05,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:09:05,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:09:06,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:09:06,091 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:09:06,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:09:06,168 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:09:06,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:06 WrapperNode [2022-10-16 17:09:06,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:09:06,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:09:06,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:09:06,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:09:06,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:06" (1/1) ... [2022-10-16 17:09:06,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:06" (1/1) ... [2022-10-16 17:09:06,218 INFO L138 Inliner]: procedures = 151, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2022-10-16 17:09:06,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:09:06,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:09:06,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:09:06,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:09:06,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:06" (1/1) ... [2022-10-16 17:09:06,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:06" (1/1) ... [2022-10-16 17:09:06,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:06" (1/1) ... [2022-10-16 17:09:06,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:06" (1/1) ... [2022-10-16 17:09:06,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:06" (1/1) ... [2022-10-16 17:09:06,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:06" (1/1) ... [2022-10-16 17:09:06,243 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:06" (1/1) ... [2022-10-16 17:09:06,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:06" (1/1) ... [2022-10-16 17:09:06,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:09:06,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:09:06,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:09:06,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:09:06,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:06" (1/1) ... [2022-10-16 17:09:06,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:09:06,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:06,281 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 17:09:06,290 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 17:09:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 17:09:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 17:09:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 17:09:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 17:09:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:09:06,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:09:06,476 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:09:06,479 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:09:06,741 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:09:06,749 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:09:06,749 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 17:09:06,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:09:06 BoogieIcfgContainer [2022-10-16 17:09:06,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:09:06,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:09:06,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:09:06,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:09:06,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:09:05" (1/3) ... [2022-10-16 17:09:06,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae28c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:09:06, skipping insertion in model container [2022-10-16 17:09:06,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:06" (2/3) ... [2022-10-16 17:09:06,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae28c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:09:06, skipping insertion in model container [2022-10-16 17:09:06,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:09:06" (3/3) ... [2022-10-16 17:09:06,764 INFO L112 eAbstractionObserver]: Analyzing ICFG count_up_and_down_alloca.i [2022-10-16 17:09:06,790 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:09:06,790 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-16 17:09:06,860 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:09:06,880 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;@15bc7a1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:09:06,880 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-16 17:09:06,895 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 25 states have (on average 1.72) internal successors, (43), 35 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 17:09:06,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 17:09:06,903 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:06,904 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:06,904 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:06,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:06,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1804968520, now seen corresponding path program 1 times [2022-10-16 17:09:06,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:06,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926138928] [2022-10-16 17:09:06,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:06,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:07,168 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 17:09:07,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:07,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926138928] [2022-10-16 17:09:07,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926138928] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:07,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:07,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:09:07,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081445680] [2022-10-16 17:09:07,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:07,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:09:07,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:07,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:09:07,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:09:07,223 INFO L87 Difference]: Start difference. First operand has 36 states, 25 states have (on average 1.72) internal successors, (43), 35 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 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:07,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:07,311 INFO L93 Difference]: Finished difference Result 93 states and 109 transitions. [2022-10-16 17:09:07,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:09:07,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 17:09:07,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:07,324 INFO L225 Difference]: With dead ends: 93 [2022-10-16 17:09:07,324 INFO L226 Difference]: Without dead ends: 48 [2022-10-16 17:09:07,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:09:07,332 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 58 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:07,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 82 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:07,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-10-16 17:09:07,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 35. [2022-10-16 17:09:07,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.52) internal successors, (38), 34 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:07,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2022-10-16 17:09:07,401 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 7 [2022-10-16 17:09:07,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:07,402 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2022-10-16 17:09:07,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:07,403 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-10-16 17:09:07,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 17:09:07,404 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:07,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:07,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:09:07,405 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:07,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:07,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815562, now seen corresponding path program 1 times [2022-10-16 17:09:07,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:07,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549989633] [2022-10-16 17:09:07,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:07,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:07,530 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 17:09:07,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:07,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549989633] [2022-10-16 17:09:07,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549989633] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:07,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:07,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:09:07,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476355047] [2022-10-16 17:09:07,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:07,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:09:07,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:07,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:09:07,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:09:07,535 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:07,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:07,581 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2022-10-16 17:09:07,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:09:07,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 17:09:07,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:07,588 INFO L225 Difference]: With dead ends: 61 [2022-10-16 17:09:07,588 INFO L226 Difference]: Without dead ends: 60 [2022-10-16 17:09:07,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:09:07,593 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 26 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:07,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 52 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:07,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-10-16 17:09:07,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 37. [2022-10-16 17:09:07,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 36 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 17:09:07,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2022-10-16 17:09:07,609 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 7 [2022-10-16 17:09:07,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:07,611 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-10-16 17:09:07,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:07,612 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2022-10-16 17:09:07,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 17:09:07,614 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:07,614 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:07,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:09:07,615 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:07,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:07,623 INFO L85 PathProgramCache]: Analyzing trace with hash 176707630, now seen corresponding path program 1 times [2022-10-16 17:09:07,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:07,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361075146] [2022-10-16 17:09:07,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:07,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:07,688 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 17:09:07,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:07,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361075146] [2022-10-16 17:09:07,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361075146] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:07,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:07,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:09:07,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302900123] [2022-10-16 17:09:07,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:07,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:09:07,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:07,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:09:07,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:09:07,692 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:07,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:07,723 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2022-10-16 17:09:07,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:09:07,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 17:09:07,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:07,725 INFO L225 Difference]: With dead ends: 61 [2022-10-16 17:09:07,725 INFO L226 Difference]: Without dead ends: 60 [2022-10-16 17:09:07,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:09:07,727 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 24 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:07,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 53 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:07,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-10-16 17:09:07,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 38. [2022-10-16 17:09:07,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.5) internal successors, (42), 37 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 17:09:07,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-10-16 17:09:07,740 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 8 [2022-10-16 17:09:07,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:07,741 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-10-16 17:09:07,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:07,741 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-10-16 17:09:07,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 17:09:07,742 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:07,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:07,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 17:09:07,743 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:07,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:07,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1182969292, now seen corresponding path program 1 times [2022-10-16 17:09:07,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:07,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228207690] [2022-10-16 17:09:07,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:07,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:07,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:08,085 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 17:09:08,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:08,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228207690] [2022-10-16 17:09:08,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228207690] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:08,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:08,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:09:08,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53636073] [2022-10-16 17:09:08,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:08,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:09:08,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:08,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:09:08,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:09:08,095 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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 17:09:08,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:08,196 INFO L93 Difference]: Finished difference Result 60 states and 65 transitions. [2022-10-16 17:09:08,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:09:08,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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 17:09:08,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:08,197 INFO L225 Difference]: With dead ends: 60 [2022-10-16 17:09:08,198 INFO L226 Difference]: Without dead ends: 58 [2022-10-16 17:09:08,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:09:08,200 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 74 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:08,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 65 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:09:08,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-10-16 17:09:08,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 40. [2022-10-16 17:09:08,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 39 states have internal predecessors, (44), 0 states have call successors, (0), 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 17:09:08,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2022-10-16 17:09:08,211 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 9 [2022-10-16 17:09:08,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:08,211 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2022-10-16 17:09:08,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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 17:09:08,212 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2022-10-16 17:09:08,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 17:09:08,213 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:08,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:08,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 17:09:08,213 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:08,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:08,214 INFO L85 PathProgramCache]: Analyzing trace with hash -2054701919, now seen corresponding path program 1 times [2022-10-16 17:09:08,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:08,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458667033] [2022-10-16 17:09:08,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:08,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:08,408 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 17:09:08,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:08,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458667033] [2022-10-16 17:09:08,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458667033] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:08,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:08,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 17:09:08,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465474166] [2022-10-16 17:09:08,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:08,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:09:08,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:08,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:09:08,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:09:08,412 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 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 17:09:08,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:08,535 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2022-10-16 17:09:08,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:09:08,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 17:09:08,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:08,542 INFO L225 Difference]: With dead ends: 65 [2022-10-16 17:09:08,542 INFO L226 Difference]: Without dead ends: 63 [2022-10-16 17:09:08,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:09:08,548 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 66 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:08,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 92 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:09:08,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-10-16 17:09:08,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 46. [2022-10-16 17:09:08,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 45 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:08,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2022-10-16 17:09:08,581 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 11 [2022-10-16 17:09:08,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:08,581 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2022-10-16 17:09:08,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 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 17:09:08,585 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2022-10-16 17:09:08,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 17:09:08,586 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:08,586 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:08,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 17:09:08,586 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:08,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:08,589 INFO L85 PathProgramCache]: Analyzing trace with hash 728748313, now seen corresponding path program 1 times [2022-10-16 17:09:08,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:08,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872245037] [2022-10-16 17:09:08,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:08,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:08,669 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 17:09:08,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:08,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872245037] [2022-10-16 17:09:08,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872245037] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:08,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:08,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:09:08,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241467610] [2022-10-16 17:09:08,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:08,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:09:08,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:08,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:09:08,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:09:08,677 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 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 17:09:08,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:08,728 INFO L93 Difference]: Finished difference Result 58 states and 64 transitions. [2022-10-16 17:09:08,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:09:08,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 17:09:08,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:08,730 INFO L225 Difference]: With dead ends: 58 [2022-10-16 17:09:08,730 INFO L226 Difference]: Without dead ends: 56 [2022-10-16 17:09:08,731 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 17:09:08,734 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 8 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:08,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 80 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:08,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-10-16 17:09:08,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2022-10-16 17:09:08,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 53 states have internal predecessors, (62), 0 states have call successors, (0), 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 17:09:08,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2022-10-16 17:09:08,746 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 12 [2022-10-16 17:09:08,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:08,746 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2022-10-16 17:09:08,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 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 17:09:08,747 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2022-10-16 17:09:08,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 17:09:08,748 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:08,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:08,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 17:09:08,748 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:08,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:08,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1631573938, now seen corresponding path program 1 times [2022-10-16 17:09:08,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:08,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763859256] [2022-10-16 17:09:08,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:08,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:08,788 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 17:09:08,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:08,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763859256] [2022-10-16 17:09:08,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763859256] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:08,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:08,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:09:08,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463441663] [2022-10-16 17:09:08,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:08,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:09:08,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:08,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:09:08,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:09:08,791 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 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 17:09:08,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:08,840 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2022-10-16 17:09:08,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:09:08,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 17:09:08,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:08,842 INFO L225 Difference]: With dead ends: 78 [2022-10-16 17:09:08,842 INFO L226 Difference]: Without dead ends: 77 [2022-10-16 17:09:08,843 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 17:09:08,844 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 20 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:08,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 74 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:08,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-10-16 17:09:08,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 56. [2022-10-16 17:09:08,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.391304347826087) internal successors, (64), 55 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:08,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2022-10-16 17:09:08,856 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 12 [2022-10-16 17:09:08,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:08,856 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2022-10-16 17:09:08,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 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 17:09:08,857 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2022-10-16 17:09:08,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 17:09:08,858 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:08,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:08,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 17:09:08,858 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:08,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:08,859 INFO L85 PathProgramCache]: Analyzing trace with hash -960815408, now seen corresponding path program 1 times [2022-10-16 17:09:08,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:08,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853432610] [2022-10-16 17:09:08,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:08,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:08,900 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 17:09:08,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:08,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853432610] [2022-10-16 17:09:08,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853432610] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:08,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:08,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:09:08,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731492051] [2022-10-16 17:09:08,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:08,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:09:08,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:08,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:09:08,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:09:08,903 INFO L87 Difference]: Start difference. First operand 56 states and 64 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:08,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:08,933 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2022-10-16 17:09:08,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:09:08,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 17:09:08,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:08,935 INFO L225 Difference]: With dead ends: 56 [2022-10-16 17:09:08,935 INFO L226 Difference]: Without dead ends: 54 [2022-10-16 17:09:08,936 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 17:09:08,937 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 22 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:08,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 49 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:08,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-10-16 17:09:08,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-10-16 17:09:08,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 53 states have internal predecessors, (62), 0 states have call successors, (0), 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 17:09:08,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2022-10-16 17:09:08,950 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 13 [2022-10-16 17:09:08,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:08,951 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2022-10-16 17:09:08,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 17:09:08,951 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2022-10-16 17:09:08,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 17:09:08,952 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:08,953 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:08,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 17:09:08,961 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:08,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:08,962 INFO L85 PathProgramCache]: Analyzing trace with hash -867067686, now seen corresponding path program 1 times [2022-10-16 17:09:08,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:08,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149794364] [2022-10-16 17:09:08,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:08,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:09,066 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:09,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:09,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149794364] [2022-10-16 17:09:09,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149794364] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:09,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:09,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:09:09,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789678177] [2022-10-16 17:09:09,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:09,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:09:09,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:09,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:09:09,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:09:09,069 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 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 17:09:09,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:09,121 INFO L93 Difference]: Finished difference Result 72 states and 84 transitions. [2022-10-16 17:09:09,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:09:09,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 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 17:09:09,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:09,123 INFO L225 Difference]: With dead ends: 72 [2022-10-16 17:09:09,123 INFO L226 Difference]: Without dead ends: 71 [2022-10-16 17:09:09,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:09:09,126 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 12 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:09,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 88 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:09,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-10-16 17:09:09,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 60. [2022-10-16 17:09:09,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 52 states have (on average 1.3461538461538463) internal successors, (70), 59 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:09,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 70 transitions. [2022-10-16 17:09:09,152 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 70 transitions. Word has length 15 [2022-10-16 17:09:09,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:09,153 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 70 transitions. [2022-10-16 17:09:09,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 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 17:09:09,153 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 70 transitions. [2022-10-16 17:09:09,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 17:09:09,155 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:09,155 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:09,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 17:09:09,156 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:09,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:09,162 INFO L85 PathProgramCache]: Analyzing trace with hash 74363218, now seen corresponding path program 1 times [2022-10-16 17:09:09,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:09,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511357824] [2022-10-16 17:09:09,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:09,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:09,245 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:09,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:09,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511357824] [2022-10-16 17:09:09,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511357824] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:09,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452529396] [2022-10-16 17:09:09,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:09,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:09,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:09,254 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 17:09:09,258 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 17:09:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:09,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:09:09,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:09,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:09,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:09,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:09,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452529396] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:09,432 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:09,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-10-16 17:09:09,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542714280] [2022-10-16 17:09:09,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:09,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 17:09:09,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:09,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 17:09:09,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:09:09,434 INFO L87 Difference]: Start difference. First operand 60 states and 70 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 10 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:09,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:09,521 INFO L93 Difference]: Finished difference Result 121 states and 143 transitions. [2022-10-16 17:09:09,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 17:09:09,521 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 10 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 17:09:09,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:09,522 INFO L225 Difference]: With dead ends: 121 [2022-10-16 17:09:09,523 INFO L226 Difference]: Without dead ends: 120 [2022-10-16 17:09:09,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-10-16 17:09:09,524 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 104 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:09,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 156 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:09,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-10-16 17:09:09,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 59. [2022-10-16 17:09:09,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 58 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:09,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 69 transitions. [2022-10-16 17:09:09,534 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 69 transitions. Word has length 15 [2022-10-16 17:09:09,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:09,534 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 69 transitions. [2022-10-16 17:09:09,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 10 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:09,534 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 69 transitions. [2022-10-16 17:09:09,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 17:09:09,535 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:09,535 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:09,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 17:09:09,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 17:09:09,751 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:09,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:09,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1109294398, now seen corresponding path program 1 times [2022-10-16 17:09:09,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:09,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596805241] [2022-10-16 17:09:09,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:09,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:09,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:09,800 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:09:09,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:09,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596805241] [2022-10-16 17:09:09,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596805241] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:09,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:09,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:09:09,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338300545] [2022-10-16 17:09:09,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:09,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:09:09,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:09,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:09:09,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:09:09,803 INFO L87 Difference]: Start difference. First operand 59 states and 69 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 17:09:09,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:09,847 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2022-10-16 17:09:09,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:09:09,848 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 17:09:09,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:09,848 INFO L225 Difference]: With dead ends: 59 [2022-10-16 17:09:09,848 INFO L226 Difference]: Without dead ends: 58 [2022-10-16 17:09:09,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:09:09,850 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 1 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:09,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 67 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:09,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-10-16 17:09:09,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2022-10-16 17:09:09,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 48 states have (on average 1.2916666666666667) internal successors, (62), 53 states have internal predecessors, (62), 0 states have call successors, (0), 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 17:09:09,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2022-10-16 17:09:09,859 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 16 [2022-10-16 17:09:09,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:09,859 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2022-10-16 17:09:09,860 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 17:09:09,860 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2022-10-16 17:09:09,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 17:09:09,860 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:09,860 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:09,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 17:09:09,861 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:09,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:09,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1998183538, now seen corresponding path program 1 times [2022-10-16 17:09:09,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:09,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790409374] [2022-10-16 17:09:09,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:09,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:09,924 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 17:09:09,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:09,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790409374] [2022-10-16 17:09:09,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790409374] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:09,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924298868] [2022-10-16 17:09:09,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:09,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:09,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:09,926 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 17:09:09,950 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 17:09:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:09,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:09:09,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:10,057 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:10,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:09:10,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924298868] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:10,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:09:10,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-10-16 17:09:10,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993029412] [2022-10-16 17:09:10,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:10,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:09:10,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:10,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:09:10,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 17:09:10,060 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:10,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:10,119 INFO L93 Difference]: Finished difference Result 78 states and 89 transitions. [2022-10-16 17:09:10,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:09:10,120 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 17:09:10,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:10,121 INFO L225 Difference]: With dead ends: 78 [2022-10-16 17:09:10,121 INFO L226 Difference]: Without dead ends: 51 [2022-10-16 17:09:10,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:09:10,122 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 9 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:10,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 85 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:10,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-10-16 17:09:10,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-10-16 17:09:10,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 45 states have (on average 1.288888888888889) internal successors, (58), 50 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 17:09:10,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2022-10-16 17:09:10,130 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 17 [2022-10-16 17:09:10,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:10,131 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2022-10-16 17:09:10,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:10,131 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2022-10-16 17:09:10,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 17:09:10,132 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:10,132 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:10,165 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 17:09:10,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 17:09:10,348 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:10,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:10,349 INFO L85 PathProgramCache]: Analyzing trace with hash 718319860, now seen corresponding path program 1 times [2022-10-16 17:09:10,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:10,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397787160] [2022-10-16 17:09:10,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:10,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:10,445 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 17:09:10,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:10,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397787160] [2022-10-16 17:09:10,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397787160] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:10,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017868345] [2022-10-16 17:09:10,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:10,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:10,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:10,447 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 17:09:10,476 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 17:09:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:10,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:09:10,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:10,604 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:10,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:09:10,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017868345] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:10,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:09:10,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2022-10-16 17:09:10,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928557812] [2022-10-16 17:09:10,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:10,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:09:10,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:10,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:09:10,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:09:10,609 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:10,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:10,690 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2022-10-16 17:09:10,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 17:09:10,691 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 17:09:10,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:10,692 INFO L225 Difference]: With dead ends: 74 [2022-10-16 17:09:10,692 INFO L226 Difference]: Without dead ends: 50 [2022-10-16 17:09:10,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2022-10-16 17:09:10,694 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 31 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:10,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 74 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:10,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-16 17:09:10,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2022-10-16 17:09:10,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 48 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:10,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2022-10-16 17:09:10,703 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 17 [2022-10-16 17:09:10,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:10,703 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2022-10-16 17:09:10,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:10,704 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2022-10-16 17:09:10,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 17:09:10,704 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:10,704 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:10,745 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 17:09:10,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:10,920 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:10,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:10,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1551389740, now seen corresponding path program 1 times [2022-10-16 17:09:10,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:10,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894060970] [2022-10-16 17:09:10,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:10,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:11,260 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 17:09:11,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:11,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894060970] [2022-10-16 17:09:11,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894060970] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:11,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348423034] [2022-10-16 17:09:11,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:11,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:11,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:11,265 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 17:09:11,284 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 17:09:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:11,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 17:09:11,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:11,387 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 17:09:11,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:09:11,484 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 17:09:11,486 INFO L356 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2022-10-16 17:09:11,487 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 37 treesize of output 39 [2022-10-16 17:09:11,613 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 17:09:11,614 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 1 case distinctions, treesize of input 28 treesize of output 12 [2022-10-16 17:09:11,619 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 17:09:11,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:11,719 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 17:09:11,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348423034] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:11,719 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:11,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 19 [2022-10-16 17:09:11,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982197637] [2022-10-16 17:09:11,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:11,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-16 17:09:11,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:11,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-16 17:09:11,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2022-10-16 17:09:11,721 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 20 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 17:09:12,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:12,084 INFO L93 Difference]: Finished difference Result 111 states and 126 transitions. [2022-10-16 17:09:12,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 17:09:12,085 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 20 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 17:09:12,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:12,086 INFO L225 Difference]: With dead ends: 111 [2022-10-16 17:09:12,086 INFO L226 Difference]: Without dead ends: 110 [2022-10-16 17:09:12,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=202, Invalid=728, Unknown=0, NotChecked=0, Total=930 [2022-10-16 17:09:12,088 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 161 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:12,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 132 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:09:12,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-10-16 17:09:12,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 62. [2022-10-16 17:09:12,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 56 states have (on average 1.2857142857142858) internal successors, (72), 61 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:12,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2022-10-16 17:09:12,096 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 17 [2022-10-16 17:09:12,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:12,097 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2022-10-16 17:09:12,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 20 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 17:09:12,097 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2022-10-16 17:09:12,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 17:09:12,097 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:12,098 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:12,133 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 17:09:12,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:12,312 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:12,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:12,313 INFO L85 PathProgramCache]: Analyzing trace with hash -848441624, now seen corresponding path program 1 times [2022-10-16 17:09:12,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:12,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017704856] [2022-10-16 17:09:12,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:12,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:12,571 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 17:09:12,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:12,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017704856] [2022-10-16 17:09:12,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017704856] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:12,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633275726] [2022-10-16 17:09:12,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:12,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:12,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:12,574 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 17:09:12,597 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 17:09:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:12,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 17:09:12,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:12,674 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 17:09:12,764 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 17 treesize of output 9 [2022-10-16 17:09:12,778 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 17:09:12,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:12,847 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 17:09:12,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633275726] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:12,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:09:12,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 7] total 17 [2022-10-16 17:09:12,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473659407] [2022-10-16 17:09:12,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:12,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:09:12,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:12,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:09:12,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2022-10-16 17:09:12,849 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:12,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:12,938 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2022-10-16 17:09:12,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:09:12,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 17:09:12,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:12,939 INFO L225 Difference]: With dead ends: 62 [2022-10-16 17:09:12,939 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 17:09:12,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2022-10-16 17:09:12,940 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 24 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:12,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 55 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:12,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 17:09:12,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-10-16 17:09:12,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 56 states have (on average 1.25) internal successors, (70), 60 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:12,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions. [2022-10-16 17:09:12,950 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 70 transitions. Word has length 18 [2022-10-16 17:09:12,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:12,951 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 70 transitions. [2022-10-16 17:09:12,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:12,951 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 70 transitions. [2022-10-16 17:09:12,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 17:09:12,951 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:12,952 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:12,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-16 17:09:13,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 17:09:13,168 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:13,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:13,169 INFO L85 PathProgramCache]: Analyzing trace with hash -573688149, now seen corresponding path program 1 times [2022-10-16 17:09:13,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:13,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621809663] [2022-10-16 17:09:13,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:13,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:13,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:13,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:13,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621809663] [2022-10-16 17:09:13,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621809663] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:13,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792130514] [2022-10-16 17:09:13,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:13,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:13,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:13,362 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 17:09:13,385 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 17:09:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:13,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 17:09:13,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:13,427 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 17:09:13,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:09:13,474 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 17:09:13,531 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 17:09:13,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:13,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:13,660 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 17 treesize of output 15 [2022-10-16 17:09:13,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:13,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792130514] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:13,669 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:13,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 5] total 14 [2022-10-16 17:09:13,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683175496] [2022-10-16 17:09:13,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:13,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 17:09:13,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:13,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 17:09:13,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-10-16 17:09:13,671 INFO L87 Difference]: Start difference. First operand 61 states and 70 transitions. Second operand has 15 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 15 states have internal predecessors, (50), 0 states have call successors, (0), 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 17:09:13,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:13,993 INFO L93 Difference]: Finished difference Result 130 states and 145 transitions. [2022-10-16 17:09:13,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 17:09:13,993 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 15 states have internal predecessors, (50), 0 states have call successors, (0), 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 19 [2022-10-16 17:09:13,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:13,994 INFO L225 Difference]: With dead ends: 130 [2022-10-16 17:09:13,995 INFO L226 Difference]: Without dead ends: 129 [2022-10-16 17:09:13,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-10-16 17:09:13,997 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 156 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:13,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 161 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 117 Invalid, 0 Unknown, 19 Unchecked, 0.1s Time] [2022-10-16 17:09:13,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-10-16 17:09:14,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 63. [2022-10-16 17:09:14,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 58 states have (on average 1.2413793103448276) internal successors, (72), 62 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:14,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 72 transitions. [2022-10-16 17:09:14,008 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 72 transitions. Word has length 19 [2022-10-16 17:09:14,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:14,010 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 72 transitions. [2022-10-16 17:09:14,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 15 states have internal predecessors, (50), 0 states have call successors, (0), 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 17:09:14,010 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 72 transitions. [2022-10-16 17:09:14,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 17:09:14,011 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:14,011 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:14,053 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 17:09:14,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 17:09:14,226 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:14,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:14,227 INFO L85 PathProgramCache]: Analyzing trace with hash 691387562, now seen corresponding path program 1 times [2022-10-16 17:09:14,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:14,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096226061] [2022-10-16 17:09:14,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:14,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:14,273 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:14,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:14,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096226061] [2022-10-16 17:09:14,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096226061] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:14,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001715524] [2022-10-16 17:09:14,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:14,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:14,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:14,275 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 17:09:14,281 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 17:09:14,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:14,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:09:14,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:14,345 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:14,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:14,383 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:14,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001715524] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:14,383 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:14,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-10-16 17:09:14,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500168979] [2022-10-16 17:09:14,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:14,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 17:09:14,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:14,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 17:09:14,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:09:14,385 INFO L87 Difference]: Start difference. First operand 63 states and 72 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:14,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:14,480 INFO L93 Difference]: Finished difference Result 150 states and 174 transitions. [2022-10-16 17:09:14,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 17:09:14,481 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 17:09:14,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:14,482 INFO L225 Difference]: With dead ends: 150 [2022-10-16 17:09:14,482 INFO L226 Difference]: Without dead ends: 149 [2022-10-16 17:09:14,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-10-16 17:09:14,483 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 73 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:14,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 146 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:14,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-10-16 17:09:14,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 74. [2022-10-16 17:09:14,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 69 states have (on average 1.2173913043478262) internal successors, (84), 73 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 17:09:14,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 84 transitions. [2022-10-16 17:09:14,494 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 84 transitions. Word has length 20 [2022-10-16 17:09:14,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:14,494 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 84 transitions. [2022-10-16 17:09:14,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:14,495 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 84 transitions. [2022-10-16 17:09:14,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 17:09:14,495 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:14,496 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:14,538 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 17:09:14,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:14,710 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:14,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:14,711 INFO L85 PathProgramCache]: Analyzing trace with hash -870635780, now seen corresponding path program 1 times [2022-10-16 17:09:14,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:14,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185772510] [2022-10-16 17:09:14,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:14,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:15,120 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 17:09:15,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:15,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185772510] [2022-10-16 17:09:15,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185772510] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:15,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350111550] [2022-10-16 17:09:15,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:15,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:15,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:15,123 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 17:09:15,150 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 17:09:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:15,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 17:09:15,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:15,253 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 17:09:15,384 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 17:09:15,396 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 17:09:15,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:15,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-10-16 17:09:15,526 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 24 treesize of output 20 [2022-10-16 17:09:15,579 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 17:09:15,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350111550] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:15,579 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:15,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 8] total 24 [2022-10-16 17:09:15,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508259290] [2022-10-16 17:09:15,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:15,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 17:09:15,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:15,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 17:09:15,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=513, Unknown=0, NotChecked=0, Total=600 [2022-10-16 17:09:15,582 INFO L87 Difference]: Start difference. First operand 74 states and 84 transitions. Second operand has 25 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 25 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:16,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:16,282 INFO L93 Difference]: Finished difference Result 143 states and 160 transitions. [2022-10-16 17:09:16,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 17:09:16,282 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 25 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 17:09:16,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:16,284 INFO L225 Difference]: With dead ends: 143 [2022-10-16 17:09:16,284 INFO L226 Difference]: Without dead ends: 142 [2022-10-16 17:09:16,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=293, Invalid=1513, Unknown=0, NotChecked=0, Total=1806 [2022-10-16 17:09:16,286 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 205 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:16,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 226 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:09:16,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-10-16 17:09:16,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 82. [2022-10-16 17:09:16,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 77 states have (on average 1.2077922077922079) internal successors, (93), 81 states have internal predecessors, (93), 0 states have call successors, (0), 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 17:09:16,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions. [2022-10-16 17:09:16,300 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 93 transitions. Word has length 25 [2022-10-16 17:09:16,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:16,300 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 93 transitions. [2022-10-16 17:09:16,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 25 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:16,301 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 93 transitions. [2022-10-16 17:09:16,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 17:09:16,302 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:16,302 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:16,351 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 17:09:16,515 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,SelfDestructingSolverStorable17 [2022-10-16 17:09:16,516 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:16,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:16,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1219907042, now seen corresponding path program 1 times [2022-10-16 17:09:16,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:16,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414860573] [2022-10-16 17:09:16,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:16,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:16,571 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:09:16,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:16,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414860573] [2022-10-16 17:09:16,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414860573] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:16,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134392115] [2022-10-16 17:09:16,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:16,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:16,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:16,573 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 17:09:16,575 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 17:09:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:16,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:09:16,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:16,642 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:09:16,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:16,694 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:09:16,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134392115] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:16,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:16,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 17:09:16,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632179822] [2022-10-16 17:09:16,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:16,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:09:16,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:16,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:09:16,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:09:16,699 INFO L87 Difference]: Start difference. First operand 82 states and 93 transitions. Second operand has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:16,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:16,824 INFO L93 Difference]: Finished difference Result 123 states and 141 transitions. [2022-10-16 17:09:16,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:09:16,825 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-10-16 17:09:16,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:16,826 INFO L225 Difference]: With dead ends: 123 [2022-10-16 17:09:16,826 INFO L226 Difference]: Without dead ends: 122 [2022-10-16 17:09:16,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 45 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 17:09:16,827 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 56 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:16,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 162 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:09:16,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-10-16 17:09:16,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 114. [2022-10-16 17:09:16,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 109 states have (on average 1.2477064220183487) internal successors, (136), 113 states have internal predecessors, (136), 0 states have call successors, (0), 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 17:09:16,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 136 transitions. [2022-10-16 17:09:16,848 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 136 transitions. Word has length 26 [2022-10-16 17:09:16,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:16,849 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 136 transitions. [2022-10-16 17:09:16,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:16,850 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 136 transitions. [2022-10-16 17:09:16,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 17:09:16,850 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:16,850 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:16,888 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 17:09:17,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:17,066 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:17,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:17,067 INFO L85 PathProgramCache]: Analyzing trace with hash 837587462, now seen corresponding path program 1 times [2022-10-16 17:09:17,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:17,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800346398] [2022-10-16 17:09:17,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:17,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:17,120 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:09:17,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:17,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800346398] [2022-10-16 17:09:17,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800346398] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:17,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859920401] [2022-10-16 17:09:17,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:17,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:17,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:17,122 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 17:09:17,147 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 17:09:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:17,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:09:17,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:17,205 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:09:17,205 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:09:17,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859920401] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:17,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:09:17,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 17:09:17,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588519591] [2022-10-16 17:09:17,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:17,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:09:17,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:17,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:09:17,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:09:17,208 INFO L87 Difference]: Start difference. First operand 114 states and 136 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:17,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:17,260 INFO L93 Difference]: Finished difference Result 115 states and 136 transitions. [2022-10-16 17:09:17,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:09:17,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 17:09:17,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:17,262 INFO L225 Difference]: With dead ends: 115 [2022-10-16 17:09:17,262 INFO L226 Difference]: Without dead ends: 114 [2022-10-16 17:09:17,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 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 17:09:17,264 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 15 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:17,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 78 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:17,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-10-16 17:09:17,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 113. [2022-10-16 17:09:17,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 109 states have (on average 1.2201834862385321) internal successors, (133), 112 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:17,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 133 transitions. [2022-10-16 17:09:17,290 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 133 transitions. Word has length 27 [2022-10-16 17:09:17,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:17,290 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 133 transitions. [2022-10-16 17:09:17,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:17,291 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 133 transitions. [2022-10-16 17:09:17,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 17:09:17,291 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:17,291 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:17,335 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 17:09:17,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:17,507 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:17,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:17,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1448299187, now seen corresponding path program 2 times [2022-10-16 17:09:17,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:17,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101357225] [2022-10-16 17:09:17,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:17,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:17,775 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:17,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:17,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101357225] [2022-10-16 17:09:17,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101357225] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:17,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635620115] [2022-10-16 17:09:17,776 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:09:17,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:17,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:17,777 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 17:09:17,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 17:09:17,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:09:17,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:09:17,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 17:09:17,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:17,857 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 17:09:17,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:09:17,899 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 17:09:18,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:09:18,003 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 17:09:18,062 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 17:09:18,069 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:18,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:20,179 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_25| Int)) (or (forall ((v_ArrVal_198 Int)) (< (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_25| 4)) v_ArrVal_198) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)) (not (<= (+ |c_ULTIMATE.start_main_#t~post207#1| 1) |v_ULTIMATE.start_main_~i~0#1_25|)))) is different from false [2022-10-16 17:09:23,088 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 24 treesize of output 22 [2022-10-16 17:09:23,102 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-10-16 17:09:23,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635620115] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:23,102 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:23,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2022-10-16 17:09:23,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732500253] [2022-10-16 17:09:23,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:23,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 17:09:23,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:23,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 17:09:23,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=324, Unknown=6, NotChecked=38, Total=462 [2022-10-16 17:09:23,105 INFO L87 Difference]: Start difference. First operand 113 states and 133 transitions. Second operand has 22 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 22 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:25,133 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_25| Int)) (or (forall ((v_ArrVal_198 Int)) (< (select (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_25| 4)) v_ArrVal_198) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)) (not (<= (+ |c_ULTIMATE.start_main_#t~post207#1| 1) |v_ULTIMATE.start_main_~i~0#1_25|)))) (<= 1 |c_ULTIMATE.start_main_#t~post207#1|) (= (select .cse0 |c_ULTIMATE.start_main_~arr~0#1.offset|) 0) (<= 1 |c_ULTIMATE.start_main_~i~0#1|) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0))) is different from false [2022-10-16 17:09:27,138 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_25| Int)) (or (forall ((v_ArrVal_198 Int)) (< (select (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_25| 4)) v_ArrVal_198) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)) (not (<= (+ |c_ULTIMATE.start_main_#t~post207#1| 1) |v_ULTIMATE.start_main_~i~0#1_25|)))) (<= 1 |c_ULTIMATE.start_main_#t~post207#1|) (= (select .cse0 |c_ULTIMATE.start_main_~arr~0#1.offset|) 0) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0))) is different from false [2022-10-16 17:09:27,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:27,396 INFO L93 Difference]: Finished difference Result 206 states and 240 transitions. [2022-10-16 17:09:27,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 17:09:27,397 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 22 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 17:09:27,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:27,398 INFO L225 Difference]: With dead ends: 206 [2022-10-16 17:09:27,398 INFO L226 Difference]: Without dead ends: 205 [2022-10-16 17:09:27,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=209, Invalid=665, Unknown=8, NotChecked=174, Total=1056 [2022-10-16 17:09:27,400 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 187 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 91 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:27,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 115 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 120 Invalid, 0 Unknown, 91 Unchecked, 0.1s Time] [2022-10-16 17:09:27,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-10-16 17:09:27,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 110. [2022-10-16 17:09:27,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 106 states have (on average 1.2075471698113207) internal successors, (128), 109 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:27,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 128 transitions. [2022-10-16 17:09:27,420 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 128 transitions. Word has length 27 [2022-10-16 17:09:27,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:27,420 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 128 transitions. [2022-10-16 17:09:27,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 22 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:27,421 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 128 transitions. [2022-10-16 17:09:27,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 17:09:27,421 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:27,421 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:27,459 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 17:09:27,635 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,SelfDestructingSolverStorable20 [2022-10-16 17:09:27,635 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:27,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:27,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1707923085, now seen corresponding path program 2 times [2022-10-16 17:09:27,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:27,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825848756] [2022-10-16 17:09:27,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:27,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:27,760 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:27,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:27,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825848756] [2022-10-16 17:09:27,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825848756] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:27,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144017979] [2022-10-16 17:09:27,761 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:09:27,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:27,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:27,762 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 17:09:27,765 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 17:09:27,816 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:09:27,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:09:27,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 17:09:27,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:27,953 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:27,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:28,081 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:28,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144017979] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:28,081 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:28,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 18 [2022-10-16 17:09:28,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006153520] [2022-10-16 17:09:28,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:28,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 17:09:28,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:28,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 17:09:28,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-10-16 17:09:28,083 INFO L87 Difference]: Start difference. First operand 110 states and 128 transitions. Second operand has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:28,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:28,310 INFO L93 Difference]: Finished difference Result 151 states and 178 transitions. [2022-10-16 17:09:28,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 17:09:28,310 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-10-16 17:09:28,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:28,311 INFO L225 Difference]: With dead ends: 151 [2022-10-16 17:09:28,311 INFO L226 Difference]: Without dead ends: 100 [2022-10-16 17:09:28,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 48 SyntacticMatches, 7 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=474, Unknown=0, NotChecked=0, Total=600 [2022-10-16 17:09:28,314 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 59 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:28,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 136 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:09:28,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-10-16 17:09:28,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2022-10-16 17:09:28,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 96 states have (on average 1.2083333333333333) internal successors, (116), 99 states have internal predecessors, (116), 0 states have call successors, (0), 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 17:09:28,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 116 transitions. [2022-10-16 17:09:28,335 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 116 transitions. Word has length 31 [2022-10-16 17:09:28,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:28,336 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 116 transitions. [2022-10-16 17:09:28,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:28,336 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 116 transitions. [2022-10-16 17:09:28,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 17:09:28,338 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:28,338 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:28,377 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 17:09:28,551 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,SelfDestructingSolverStorable21 [2022-10-16 17:09:28,552 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:28,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:28,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1330440956, now seen corresponding path program 3 times [2022-10-16 17:09:28,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:28,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563977406] [2022-10-16 17:09:28,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:28,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:29,023 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:29,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:29,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563977406] [2022-10-16 17:09:29,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563977406] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:29,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493490661] [2022-10-16 17:09:29,024 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:09:29,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:29,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:29,026 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 17:09:29,043 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 17:09:29,084 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 17:09:29,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:09:29,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 28 conjunts are in the unsatisfiable core [2022-10-16 17:09:29,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:29,100 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 17:09:29,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:09:29,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 17:09:29,182 INFO L356 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2022-10-16 17:09:29,183 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 37 treesize of output 39 [2022-10-16 17:09:29,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:09:29,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:09:29,330 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 17:09:29,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 34 [2022-10-16 17:09:29,579 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 17:09:29,579 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 1 case distinctions, treesize of input 28 treesize of output 12 [2022-10-16 17:09:29,582 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:29,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:29,969 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:29,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493490661] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:29,970 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:29,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 11] total 31 [2022-10-16 17:09:29,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256417473] [2022-10-16 17:09:29,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:29,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 17:09:29,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:29,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 17:09:29,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=854, Unknown=0, NotChecked=0, Total=992 [2022-10-16 17:09:29,972 INFO L87 Difference]: Start difference. First operand 100 states and 116 transitions. Second operand has 32 states, 31 states have (on average 2.935483870967742) internal successors, (91), 32 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 17:09:31,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:31,331 INFO L93 Difference]: Finished difference Result 338 states and 392 transitions. [2022-10-16 17:09:31,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-10-16 17:09:31,332 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.935483870967742) internal successors, (91), 32 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-10-16 17:09:31,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:31,334 INFO L225 Difference]: With dead ends: 338 [2022-10-16 17:09:31,334 INFO L226 Difference]: Without dead ends: 337 [2022-10-16 17:09:31,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1153 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=637, Invalid=3653, Unknown=0, NotChecked=0, Total=4290 [2022-10-16 17:09:31,337 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 333 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 396 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:31,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 287 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 434 Invalid, 0 Unknown, 396 Unchecked, 0.4s Time] [2022-10-16 17:09:31,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-10-16 17:09:31,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 110. [2022-10-16 17:09:31,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 106 states have (on average 1.1981132075471699) internal successors, (127), 109 states have internal predecessors, (127), 0 states have call successors, (0), 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 17:09:31,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 127 transitions. [2022-10-16 17:09:31,361 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 127 transitions. Word has length 33 [2022-10-16 17:09:31,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:31,361 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 127 transitions. [2022-10-16 17:09:31,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.935483870967742) internal successors, (91), 32 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 17:09:31,361 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 127 transitions. [2022-10-16 17:09:31,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 17:09:31,362 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:31,362 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:31,406 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 17:09:31,577 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,SelfDestructingSolverStorable22 [2022-10-16 17:09:31,578 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:31,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:31,579 INFO L85 PathProgramCache]: Analyzing trace with hash 694816740, now seen corresponding path program 2 times [2022-10-16 17:09:31,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:31,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414508893] [2022-10-16 17:09:31,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:31,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:32,076 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:32,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:32,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414508893] [2022-10-16 17:09:32,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414508893] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:32,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499463442] [2022-10-16 17:09:32,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:09:32,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:32,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:32,078 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 17:09:32,081 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 17:09:32,165 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:09:32,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:09:32,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-16 17:09:32,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:32,180 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 17:09:32,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:09:32,248 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 17:09:32,250 INFO L356 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2022-10-16 17:09:32,250 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 37 treesize of output 39 [2022-10-16 17:09:32,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:09:32,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:09:32,419 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 17:09:32,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:09:32,422 INFO L356 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2022-10-16 17:09:32,423 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 53 [2022-10-16 17:09:32,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:09:32,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:09:32,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:09:32,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:09:32,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:09:32,676 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 17:09:32,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:09:32,680 INFO L356 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2022-10-16 17:09:32,680 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 67 [2022-10-16 17:09:32,908 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 17:09:32,908 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 22 [2022-10-16 17:09:32,916 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:32,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:33,273 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:33,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499463442] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:33,273 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:33,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 15] total 43 [2022-10-16 17:09:33,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293473491] [2022-10-16 17:09:33,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:33,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-10-16 17:09:33,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:33,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-10-16 17:09:33,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=1585, Unknown=0, NotChecked=0, Total=1892 [2022-10-16 17:09:33,276 INFO L87 Difference]: Start difference. First operand 110 states and 127 transitions. Second operand has 44 states, 43 states have (on average 2.116279069767442) internal successors, (91), 44 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 17:09:34,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:34,381 INFO L93 Difference]: Finished difference Result 347 states and 407 transitions. [2022-10-16 17:09:34,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-10-16 17:09:34,382 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 2.116279069767442) internal successors, (91), 44 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-10-16 17:09:34,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:34,384 INFO L225 Difference]: With dead ends: 347 [2022-10-16 17:09:34,384 INFO L226 Difference]: Without dead ends: 346 [2022-10-16 17:09:34,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1319 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=663, Invalid=3243, Unknown=0, NotChecked=0, Total=3906 [2022-10-16 17:09:34,387 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 249 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:34,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 328 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 17:09:34,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-10-16 17:09:34,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 131. [2022-10-16 17:09:34,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 127 states have (on average 1.1968503937007875) internal successors, (152), 130 states have internal predecessors, (152), 0 states have call successors, (0), 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 17:09:34,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 152 transitions. [2022-10-16 17:09:34,417 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 152 transitions. Word has length 33 [2022-10-16 17:09:34,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:34,417 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 152 transitions. [2022-10-16 17:09:34,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 2.116279069767442) internal successors, (91), 44 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 17:09:34,418 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 152 transitions. [2022-10-16 17:09:34,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 17:09:34,419 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:34,419 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:34,448 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 17:09:34,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:34,631 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:34,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:34,632 INFO L85 PathProgramCache]: Analyzing trace with hash -278126955, now seen corresponding path program 4 times [2022-10-16 17:09:34,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:34,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475619124] [2022-10-16 17:09:34,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:34,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:35,276 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:35,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:35,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475619124] [2022-10-16 17:09:35,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475619124] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:35,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4677733] [2022-10-16 17:09:35,277 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 17:09:35,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:35,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:35,279 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 17:09:35,306 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 17:09:35,345 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 17:09:35,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:09:35,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-16 17:09:35,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:35,399 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 17:09:35,530 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 27 [2022-10-16 17:09:35,819 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 17:09:35,820 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 36 treesize of output 12 [2022-10-16 17:09:35,843 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:35,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:36,336 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 24 treesize of output 22 [2022-10-16 17:09:36,359 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 130 treesize of output 122 [2022-10-16 17:09:36,588 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:36,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4677733] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:36,589 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:36,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 41 [2022-10-16 17:09:36,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240613271] [2022-10-16 17:09:36,589 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:36,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-10-16 17:09:36,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:36,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-10-16 17:09:36,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1554, Unknown=0, NotChecked=0, Total=1722 [2022-10-16 17:09:36,592 INFO L87 Difference]: Start difference. First operand 131 states and 152 transitions. Second operand has 42 states, 41 states have (on average 2.658536585365854) internal successors, (109), 42 states have internal predecessors, (109), 0 states have call successors, (0), 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 17:09:39,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:39,148 INFO L93 Difference]: Finished difference Result 315 states and 365 transitions. [2022-10-16 17:09:39,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-10-16 17:09:39,149 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 2.658536585365854) internal successors, (109), 42 states have internal predecessors, (109), 0 states have call successors, (0), 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 39 [2022-10-16 17:09:39,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:39,153 INFO L225 Difference]: With dead ends: 315 [2022-10-16 17:09:39,153 INFO L226 Difference]: Without dead ends: 314 [2022-10-16 17:09:39,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2086 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=837, Invalid=7535, Unknown=0, NotChecked=0, Total=8372 [2022-10-16 17:09:39,158 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 348 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 317 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:39,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 504 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1090 Invalid, 0 Unknown, 317 Unchecked, 0.7s Time] [2022-10-16 17:09:39,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-10-16 17:09:39,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 139. [2022-10-16 17:09:39,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 138 states have internal predecessors, (161), 0 states have call successors, (0), 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 17:09:39,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 161 transitions. [2022-10-16 17:09:39,187 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 161 transitions. Word has length 39 [2022-10-16 17:09:39,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:39,187 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 161 transitions. [2022-10-16 17:09:39,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 2.658536585365854) internal successors, (109), 42 states have internal predecessors, (109), 0 states have call successors, (0), 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 17:09:39,193 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 161 transitions. [2022-10-16 17:09:39,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 17:09:39,194 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:39,194 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:39,232 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 17:09:39,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:39,408 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:39,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:39,409 INFO L85 PathProgramCache]: Analyzing trace with hash -102458478, now seen corresponding path program 2 times [2022-10-16 17:09:39,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:39,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985716602] [2022-10-16 17:09:39,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:39,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:39,571 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:39,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:39,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985716602] [2022-10-16 17:09:39,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985716602] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:39,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125098706] [2022-10-16 17:09:39,572 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:09:39,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:39,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:39,574 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 17:09:39,582 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 17:09:39,629 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 17:09:39,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:09:39,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:09:39,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:39,699 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-10-16 17:09:39,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:39,754 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-10-16 17:09:39,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125098706] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:39,755 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:39,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-16 17:09:39,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698269889] [2022-10-16 17:09:39,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:39,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 17:09:39,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:39,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 17:09:39,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 17:09:39,757 INFO L87 Difference]: Start difference. First operand 139 states and 161 transitions. Second operand has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 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 17:09:40,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:40,009 INFO L93 Difference]: Finished difference Result 325 states and 385 transitions. [2022-10-16 17:09:40,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:09:40,009 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-10-16 17:09:40,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:40,011 INFO L225 Difference]: With dead ends: 325 [2022-10-16 17:09:40,011 INFO L226 Difference]: Without dead ends: 324 [2022-10-16 17:09:40,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 82 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2022-10-16 17:09:40,013 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 214 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:40,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 110 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:09:40,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2022-10-16 17:09:40,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 138. [2022-10-16 17:09:40,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 135 states have (on average 1.1703703703703703) internal successors, (158), 137 states have internal predecessors, (158), 0 states have call successors, (0), 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 17:09:40,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 158 transitions. [2022-10-16 17:09:40,041 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 158 transitions. Word has length 44 [2022-10-16 17:09:40,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:40,042 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 158 transitions. [2022-10-16 17:09:40,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 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 17:09:40,042 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 158 transitions. [2022-10-16 17:09:40,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 17:09:40,043 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:40,043 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:40,079 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 17:09:40,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 17:09:40,248 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:40,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:40,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1914570906, now seen corresponding path program 5 times [2022-10-16 17:09:40,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:40,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737400440] [2022-10-16 17:09:40,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:40,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:40,420 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 14 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:40,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:40,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737400440] [2022-10-16 17:09:40,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737400440] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:40,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299560234] [2022-10-16 17:09:40,421 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 17:09:40,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:40,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:40,422 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 17:09:40,433 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 17:09:40,497 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-10-16 17:09:40,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:09:40,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-16 17:09:40,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:40,690 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:40,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:40,827 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:40,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299560234] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:40,828 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:40,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 24 [2022-10-16 17:09:40,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422838181] [2022-10-16 17:09:40,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:40,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 17:09:40,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:40,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 17:09:40,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2022-10-16 17:09:40,830 INFO L87 Difference]: Start difference. First operand 138 states and 158 transitions. Second operand has 24 states, 24 states have (on average 3.0) internal successors, (72), 24 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:41,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:41,135 INFO L93 Difference]: Finished difference Result 186 states and 214 transitions. [2022-10-16 17:09:41,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:09:41,136 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.0) internal successors, (72), 24 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-10-16 17:09:41,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:41,137 INFO L225 Difference]: With dead ends: 186 [2022-10-16 17:09:41,137 INFO L226 Difference]: Without dead ends: 138 [2022-10-16 17:09:41,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 70 SyntacticMatches, 11 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=203, Invalid=919, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 17:09:41,138 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 86 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:41,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 162 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:09:41,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-10-16 17:09:41,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2022-10-16 17:09:41,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 135 states have (on average 1.162962962962963) internal successors, (157), 137 states have internal predecessors, (157), 0 states have call successors, (0), 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 17:09:41,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 157 transitions. [2022-10-16 17:09:41,164 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 157 transitions. Word has length 45 [2022-10-16 17:09:41,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:41,164 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 157 transitions. [2022-10-16 17:09:41,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.0) internal successors, (72), 24 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:41,165 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 157 transitions. [2022-10-16 17:09:41,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 17:09:41,165 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:41,165 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:41,190 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 17:09:41,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 17:09:41,368 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:41,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:41,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1746183916, now seen corresponding path program 6 times [2022-10-16 17:09:41,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:41,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943306490] [2022-10-16 17:09:41,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:41,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:41,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:42,105 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 12 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:42,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:42,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943306490] [2022-10-16 17:09:42,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943306490] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:42,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581128540] [2022-10-16 17:09:42,106 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 17:09:42,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:42,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:42,107 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 17:09:42,116 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 17:09:42,183 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-10-16 17:09:42,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:09:42,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-16 17:09:42,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:42,236 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 17:09:42,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:09:42,385 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 25 treesize of output 24 [2022-10-16 17:09:42,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 17:09:42,519 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 17:09:42,613 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-10-16 17:09:42,614 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 30 [2022-10-16 17:09:42,923 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 17:09:42,944 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:42,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:10:00,820 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_51| Int)) (or (forall ((v_ArrVal_356 Int) (v_ArrVal_353 Int) (|v_ULTIMATE.start_main_~i~0#1_50| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_50| 1) |c_ULTIMATE.start_main_~length~0#1|) (< (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_51| 4)) v_ArrVal_353) (+ (* |v_ULTIMATE.start_main_~i~0#1_50| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_356) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 4)) 2147483649))) (not (<= (+ |c_ULTIMATE.start_main_#t~post207#1| 1) |v_ULTIMATE.start_main_~i~0#1_51|)))) is different from false [2022-10-16 17:10:01,584 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_356 Int) (v_ArrVal_353 Int) (|v_ULTIMATE.start_main_~i~0#1_51| Int) (|v_ULTIMATE.start_main_~i~0#1_50| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_51| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< (+ |v_ULTIMATE.start_main_~i~0#1_50| 1) |c_ULTIMATE.start_main_~length~0#1|) (< (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_51| 4)) v_ArrVal_353) (+ (* |v_ULTIMATE.start_main_~i~0#1_50| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_356) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 4)) 2147483649))) is different from false [2022-10-16 17:10:50,853 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 38 treesize of output 36 [2022-10-16 17:10:50,859 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 1090 treesize of output 1074 [2022-10-16 17:10:52,538 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 9 not checked. [2022-10-16 17:10:52,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581128540] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:10:52,539 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:10:52,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19, 19] total 51 [2022-10-16 17:10:52,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019423296] [2022-10-16 17:10:52,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:10:52,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-10-16 17:10:52,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:10:52,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-10-16 17:10:52,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=324, Invalid=2062, Unknown=72, NotChecked=194, Total=2652 [2022-10-16 17:10:52,541 INFO L87 Difference]: Start difference. First operand 138 states and 157 transitions. Second operand has 52 states, 51 states have (on average 2.7450980392156863) internal successors, (140), 52 states have internal predecessors, (140), 0 states have call successors, (0), 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 17:10:55,955 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 4))) (let ((.cse0 (select .cse1 .cse2))) (and (<= .cse0 1) (< |c_ULTIMATE.start_main_~i~0#1| |c_ULTIMATE.start_main_~length~0#1|) (forall ((v_ArrVal_356 Int) (v_ArrVal_353 Int) (|v_ULTIMATE.start_main_~i~0#1_51| Int) (|v_ULTIMATE.start_main_~i~0#1_50| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_51| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< (+ |v_ULTIMATE.start_main_~i~0#1_50| 1) |c_ULTIMATE.start_main_~length~0#1|) (< (select (store (store .cse1 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_51| 4)) v_ArrVal_353) (+ (* |v_ULTIMATE.start_main_~i~0#1_50| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_356) .cse2) 2147483649))) (<= 2 |c_ULTIMATE.start_main_~i~0#1|) (= 2 |c_ULTIMATE.start_main_~i~0#1|) (<= .cse0 2147483647) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0)))) is different from false [2022-10-16 17:10:57,960 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 4))) (let ((.cse0 (select .cse1 .cse2))) (and (<= .cse0 1) (< 2 |c_ULTIMATE.start_main_~length~0#1|) (forall ((|v_ULTIMATE.start_main_~i~0#1_51| Int)) (or (forall ((v_ArrVal_356 Int) (v_ArrVal_353 Int) (|v_ULTIMATE.start_main_~i~0#1_50| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_50| 1) |c_ULTIMATE.start_main_~length~0#1|) (< (select (store (store .cse1 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_51| 4)) v_ArrVal_353) (+ (* |v_ULTIMATE.start_main_~i~0#1_50| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_356) .cse2) 2147483649))) (not (<= (+ |c_ULTIMATE.start_main_#t~post207#1| 1) |v_ULTIMATE.start_main_~i~0#1_51|)))) (<= .cse0 2147483647) (<= 2 |c_ULTIMATE.start_main_#t~post207#1|) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0)))) is different from false [2022-10-16 17:10:59,579 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 4))) (let ((.cse0 (select .cse1 .cse2))) (and (<= .cse0 1) (<= 3 |c_ULTIMATE.start_main_~i~0#1|) (< 2 |c_ULTIMATE.start_main_~length~0#1|) (forall ((v_ArrVal_356 Int) (v_ArrVal_353 Int) (|v_ULTIMATE.start_main_~i~0#1_51| Int) (|v_ULTIMATE.start_main_~i~0#1_50| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_51| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< (+ |v_ULTIMATE.start_main_~i~0#1_50| 1) |c_ULTIMATE.start_main_~length~0#1|) (< (select (store (store .cse1 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_51| 4)) v_ArrVal_353) (+ (* |v_ULTIMATE.start_main_~i~0#1_50| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_356) .cse2) 2147483649))) (<= .cse0 2147483647) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0)))) is different from false [2022-10-16 17:11:01,583 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 4))) (let ((.cse0 (select .cse1 .cse2))) (and (<= .cse0 1) (< 2 |c_ULTIMATE.start_main_~length~0#1|) (forall ((|v_ULTIMATE.start_main_~i~0#1_51| Int)) (or (forall ((v_ArrVal_356 Int) (v_ArrVal_353 Int) (|v_ULTIMATE.start_main_~i~0#1_50| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_50| 1) |c_ULTIMATE.start_main_~length~0#1|) (< (select (store (store .cse1 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_51| 4)) v_ArrVal_353) (+ (* |v_ULTIMATE.start_main_~i~0#1_50| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_356) .cse2) 2147483649))) (not (<= (+ |c_ULTIMATE.start_main_#t~post207#1| 1) |v_ULTIMATE.start_main_~i~0#1_51|)))) (<= .cse0 2147483647) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0) (<= 3 |c_ULTIMATE.start_main_#t~post207#1|)))) is different from false [2022-10-16 17:11:11,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:11:11,313 INFO L93 Difference]: Finished difference Result 185 states and 209 transitions. [2022-10-16 17:11:11,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 17:11:11,313 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 2.7450980392156863) internal successors, (140), 52 states have internal predecessors, (140), 0 states have call successors, (0), 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 17:11:11,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:11:11,314 INFO L225 Difference]: With dead ends: 185 [2022-10-16 17:11:11,314 INFO L226 Difference]: Without dead ends: 184 [2022-10-16 17:11:11,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 1141 ImplicationChecksByTransitivity, 86.5s TimeCoverageRelationStatistics Valid=775, Invalid=3852, Unknown=89, NotChecked=834, Total=5550 [2022-10-16 17:11:11,319 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 632 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 206 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:11:11,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 214 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 599 Invalid, 0 Unknown, 206 Unchecked, 0.4s Time] [2022-10-16 17:11:11,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-10-16 17:11:11,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 135. [2022-10-16 17:11:11,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 132 states have (on average 1.1515151515151516) internal successors, (152), 134 states have internal predecessors, (152), 0 states have call successors, (0), 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 17:11:11,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 152 transitions. [2022-10-16 17:11:11,346 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 152 transitions. Word has length 49 [2022-10-16 17:11:11,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:11:11,347 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 152 transitions. [2022-10-16 17:11:11,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 2.7450980392156863) internal successors, (140), 52 states have internal predecessors, (140), 0 states have call successors, (0), 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 17:11:11,347 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 152 transitions. [2022-10-16 17:11:11,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 17:11:11,347 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:11:11,347 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:11:11,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 17:11:11,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 17:11:11,549 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:11:11,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:11:11,550 INFO L85 PathProgramCache]: Analyzing trace with hash -637628050, now seen corresponding path program 7 times [2022-10-16 17:11:11,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:11:11,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127450226] [2022-10-16 17:11:11,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:11:11,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:11:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:11:11,979 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:11:11,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:11:11,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127450226] [2022-10-16 17:11:11,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127450226] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:11:11,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340755955] [2022-10-16 17:11:11,980 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 17:11:11,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:11:11,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:11:11,981 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:11:11,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 17:11:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:11:12,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 39 conjunts are in the unsatisfiable core [2022-10-16 17:11:12,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:11:12,206 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 17:11:12,370 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 34 treesize of output 27 [2022-10-16 17:11:12,894 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 17:11:12,895 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 1 case distinctions, treesize of input 28 treesize of output 12 [2022-10-16 17:11:12,924 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:11:12,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:11:13,574 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 24 treesize of output 22 [2022-10-16 17:11:13,577 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 58 treesize of output 54 [2022-10-16 17:11:13,823 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:11:13,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340755955] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:11:13,824 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:11:13,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 18] total 51 [2022-10-16 17:11:13,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817135226] [2022-10-16 17:11:13,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:11:13,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-10-16 17:11:13,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:11:13,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-10-16 17:11:13,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=2421, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 17:11:13,828 INFO L87 Difference]: Start difference. First operand 135 states and 152 transitions. Second operand has 52 states, 51 states have (on average 2.9607843137254903) internal successors, (151), 52 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:11:17,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:11:17,131 INFO L93 Difference]: Finished difference Result 315 states and 356 transitions. [2022-10-16 17:11:17,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-10-16 17:11:17,132 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 2.9607843137254903) internal successors, (151), 52 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-10-16 17:11:17,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:11:17,134 INFO L225 Difference]: With dead ends: 315 [2022-10-16 17:11:17,134 INFO L226 Difference]: Without dead ends: 314 [2022-10-16 17:11:17,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3213 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1112, Invalid=10230, Unknown=0, NotChecked=0, Total=11342 [2022-10-16 17:11:17,139 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 363 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 1805 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 2296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 420 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:11:17,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 723 Invalid, 2296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1805 Invalid, 0 Unknown, 420 Unchecked, 1.1s Time] [2022-10-16 17:11:17,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-10-16 17:11:17,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 164. [2022-10-16 17:11:17,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 161 states have (on average 1.15527950310559) internal successors, (186), 163 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 17:11:17,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 186 transitions. [2022-10-16 17:11:17,169 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 186 transitions. Word has length 53 [2022-10-16 17:11:17,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:11:17,169 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 186 transitions. [2022-10-16 17:11:17,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 2.9607843137254903) internal successors, (151), 52 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:11:17,169 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 186 transitions. [2022-10-16 17:11:17,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-16 17:11:17,170 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:11:17,170 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:11:17,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 17:11:17,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 17:11:17,383 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:11:17,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:11:17,384 INFO L85 PathProgramCache]: Analyzing trace with hash 46470821, now seen corresponding path program 8 times [2022-10-16 17:11:17,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:11:17,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901760434] [2022-10-16 17:11:17,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:11:17,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:11:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:11:18,255 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 12 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:11:18,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:11:18,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901760434] [2022-10-16 17:11:18,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901760434] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:11:18,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089236811] [2022-10-16 17:11:18,256 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:11:18,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:11:18,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:11:18,257 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:11:18,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 17:11:18,323 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:11:18,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:11:18,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 37 conjunts are in the unsatisfiable core [2022-10-16 17:11:18,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:11:18,372 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 17:11:18,501 INFO L356 Elim1Store]: treesize reduction 33, result has 21.4 percent of original size [2022-10-16 17:11:18,501 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 2 case distinctions, treesize of input 39 treesize of output 41 [2022-10-16 17:11:18,660 INFO L356 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-10-16 17:11:18,660 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 3 case distinctions, treesize of input 42 treesize of output 38 [2022-10-16 17:11:18,810 INFO L356 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-10-16 17:11:18,810 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 3 case distinctions, treesize of input 42 treesize of output 38 [2022-10-16 17:11:19,176 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 17:11:19,177 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 36 treesize of output 12 [2022-10-16 17:11:19,211 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:11:19,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:13:05,384 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 31 treesize of output 29 [2022-10-16 17:13:05,388 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 126 treesize of output 122 [2022-10-16 17:13:05,599 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 7 proven. 50 refuted. 4 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 17:13:05,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089236811] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:13:05,599 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:13:05,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 18] total 53 [2022-10-16 17:13:05,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035149472] [2022-10-16 17:13:05,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:13:05,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-10-16 17:13:05,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:13:05,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-10-16 17:13:05,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=2475, Unknown=76, NotChecked=0, Total=2756 [2022-10-16 17:13:05,602 INFO L87 Difference]: Start difference. First operand 164 states and 186 transitions. Second operand has 53 states, 53 states have (on average 2.9245283018867925) internal successors, (155), 53 states have internal predecessors, (155), 0 states have call successors, (0), 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 17:13:07,095 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (let ((.cse1 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8)) (.cse2 (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 4)))) (and (forall ((v_ArrVal_412 Int) (|v_ULTIMATE.start_main_~i~0#1_59| Int)) (or (< (select (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_59| 4)) v_ArrVal_412) .cse1) 2147483649) (< |v_ULTIMATE.start_main_~i~0#1_59| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (<= 1 .cse2) (<= 3 |c_ULTIMATE.start_main_~i~0#1|) (<= (select .cse0 .cse1) (+ .cse2 1)) (<= .cse2 2147483647) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0)))) is different from false [2022-10-16 17:13:09,220 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (let ((.cse2 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8)) (.cse0 (select .cse1 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 4)))) (and (<= 1 .cse0) (<= (select .cse1 .cse2) (+ .cse0 1)) (forall ((|v_ULTIMATE.start_main_~i~0#1_59| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post207#1| 1) |v_ULTIMATE.start_main_~i~0#1_59|)) (forall ((v_ArrVal_412 Int)) (< (select (store .cse1 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_59| 4)) v_ArrVal_412) .cse2) 2147483649)))) (<= .cse0 2147483647) (<= 3 |c_ULTIMATE.start_main_#t~post207#1|)))) is different from false [2022-10-16 17:13:10,529 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (let ((.cse4 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4))) (.cse1 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8)) (.cse2 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse3 (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 4)))) (and (forall ((v_ArrVal_412 Int) (|v_ULTIMATE.start_main_~i~0#1_59| Int)) (or (< (select (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_59| 4)) v_ArrVal_412) .cse1) 2147483649) (< |v_ULTIMATE.start_main_~i~0#1_59| .cse2))) (<= 1 .cse3) (<= 3 |c_ULTIMATE.start_main_~i~0#1|) (<= (select .cse0 .cse1) (+ .cse3 1)) (forall ((v_ArrVal_412 Int) (|v_ULTIMATE.start_main_~i~0#1_59| Int) (v_ArrVal_409 Int)) (or (< (select (store (store .cse0 .cse4 v_ArrVal_409) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_59| 4)) v_ArrVal_412) .cse1) 2147483649) (< |v_ULTIMATE.start_main_~i~0#1_59| .cse2))) (< (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~j~0#1| 4))) 2147483649) (= |c_ULTIMATE.start_main_~j~0#1| 0) (forall ((v_ArrVal_412 Int) (|v_ULTIMATE.start_main_~i~0#1_59| Int) (v_ArrVal_407 Int)) (or (< (select (store (store .cse0 .cse4 v_ArrVal_407) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_59| 4)) v_ArrVal_412) .cse1) 2147483649) (not (<= v_ArrVal_407 (+ |c_ULTIMATE.start_main_#t~mem208#1| 1))) (< |v_ULTIMATE.start_main_~i~0#1_59| .cse2))) (<= .cse3 2147483647) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0)))) is different from false [2022-10-16 17:13:12,683 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (let ((.cse4 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4))) (.cse1 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8)) (.cse2 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse3 (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 4)))) (and (forall ((v_ArrVal_412 Int) (|v_ULTIMATE.start_main_~i~0#1_59| Int)) (or (< (select (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_59| 4)) v_ArrVal_412) .cse1) 2147483649) (< |v_ULTIMATE.start_main_~i~0#1_59| .cse2))) (<= 1 (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~j~0#1| 4)))) (<= 1 .cse3) (<= 3 |c_ULTIMATE.start_main_~i~0#1|) (<= (select .cse0 .cse1) (+ .cse3 1)) (= |c_ULTIMATE.start_main_~j~0#1| 1) (forall ((v_ArrVal_412 Int) (|v_ULTIMATE.start_main_~i~0#1_59| Int) (v_ArrVal_409 Int)) (or (< (select (store (store .cse0 .cse4 v_ArrVal_409) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_59| 4)) v_ArrVal_412) .cse1) 2147483649) (< |v_ULTIMATE.start_main_~i~0#1_59| .cse2))) (forall ((v_ArrVal_412 Int) (|v_ULTIMATE.start_main_~i~0#1_59| Int) (v_ArrVal_407 Int)) (or (< (select (store (store .cse0 .cse4 v_ArrVal_407) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_59| 4)) v_ArrVal_412) .cse1) 2147483649) (not (<= v_ArrVal_407 (+ |c_ULTIMATE.start_main_#t~mem208#1| 1))) (< |v_ULTIMATE.start_main_~i~0#1_59| .cse2))) (<= .cse3 2147483647) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0)))) is different from false [2022-10-16 17:13:13,881 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (let ((.cse4 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4))) (.cse1 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8)) (.cse2 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse3 (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 4)))) (and (forall ((v_ArrVal_412 Int) (|v_ULTIMATE.start_main_~i~0#1_59| Int)) (or (< (select (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_59| 4)) v_ArrVal_412) .cse1) 2147483649) (< |v_ULTIMATE.start_main_~i~0#1_59| .cse2))) (<= 1 .cse3) (<= 3 |c_ULTIMATE.start_main_~i~0#1|) (<= (select .cse0 .cse1) (+ .cse3 1)) (forall ((v_ArrVal_412 Int) (|v_ULTIMATE.start_main_~i~0#1_59| Int) (v_ArrVal_409 Int)) (or (< (select (store (store .cse0 .cse4 v_ArrVal_409) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_59| 4)) v_ArrVal_412) .cse1) 2147483649) (< |v_ULTIMATE.start_main_~i~0#1_59| .cse2))) (forall ((v_ArrVal_412 Int) (|v_ULTIMATE.start_main_~i~0#1_59| Int) (v_ArrVal_407 Int)) (or (< (select (store (store .cse0 .cse4 v_ArrVal_407) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_59| 4)) v_ArrVal_412) .cse1) 2147483649) (not (<= v_ArrVal_407 (+ |c_ULTIMATE.start_main_#t~mem208#1| 1))) (< |v_ULTIMATE.start_main_~i~0#1_59| .cse2))) (<= .cse3 2147483647)))) is different from false [2022-10-16 17:13:14,581 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (and (<= 1 (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 4))) (<= 3 |c_ULTIMATE.start_main_~i~0#1|) (forall ((v_ArrVal_412 Int) (|v_ULTIMATE.start_main_~i~0#1_59| Int) (v_ArrVal_409 Int)) (or (< (select (store (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_409) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_59| 4)) v_ArrVal_412) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8)) 2147483649) (< |v_ULTIMATE.start_main_~i~0#1_59| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))))) is different from false [2022-10-16 17:13:15,714 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4))) (.cse2 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8)) (.cse3 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (and (<= 1 (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 4))) (<= 3 |c_ULTIMATE.start_main_~i~0#1|) (forall ((v_ArrVal_412 Int) (|v_ULTIMATE.start_main_~i~0#1_59| Int) (v_ArrVal_409 Int)) (or (< (select (store (store .cse0 .cse1 v_ArrVal_409) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_59| 4)) v_ArrVal_412) .cse2) 2147483649) (< |v_ULTIMATE.start_main_~i~0#1_59| .cse3))) (forall ((v_ArrVal_412 Int) (|v_ULTIMATE.start_main_~i~0#1_59| Int) (v_ArrVal_407 Int)) (or (< (select (store (store .cse0 .cse1 v_ArrVal_407) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_59| 4)) v_ArrVal_412) .cse2) 2147483649) (not (<= v_ArrVal_407 (+ |c_ULTIMATE.start_main_#t~mem208#1| 1))) (< |v_ULTIMATE.start_main_~i~0#1_59| .cse3))))) is different from false [2022-10-16 17:13:22,535 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (and (forall ((v_ArrVal_412 Int) (|v_ULTIMATE.start_main_~i~0#1_59| Int)) (or (< (select (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_59| 4)) v_ArrVal_412) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8)) 2147483649) (< |v_ULTIMATE.start_main_~i~0#1_59| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (<= 1 (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 4))) (<= 3 |c_ULTIMATE.start_main_~i~0#1|))) is different from false [2022-10-16 17:13:24,668 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (and (<= 1 (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 4))) (forall ((|v_ULTIMATE.start_main_~i~0#1_59| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post207#1| 1) |v_ULTIMATE.start_main_~i~0#1_59|)) (forall ((v_ArrVal_412 Int)) (< (select (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_59| 4)) v_ArrVal_412) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8)) 2147483649)))) (<= 3 |c_ULTIMATE.start_main_#t~post207#1|))) is different from false