/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/cstrncat_mixed_alloca.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:09:47,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:09:47,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:09:47,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:09:47,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:09:47,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:09:47,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:09:47,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:09:47,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:09:47,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:09:47,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:09:47,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:09:47,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:09:47,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:09:47,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:09:47,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:09:47,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:09:47,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:09:47,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:09:47,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:09:47,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:09:47,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:09:47,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:09:47,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:09:47,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 17:09:47,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:09:47,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:09:47,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:09:47,644 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 17:09:47,697 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:09:47,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:09:47,698 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:09:47,698 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:09:47,700 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:09:47,701 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:09:47,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:09:47,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:09:47,704 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:09:47,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:09:47,705 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:09:47,706 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:09:47,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:09:47,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:09:47,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:09:47,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:09:47,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:09:47,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:09:47,707 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:09:47,707 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:09:47,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:09:47,707 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:09:47,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:09:47,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:09:47,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:09:47,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:09:47,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:09:47,709 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:09:47,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:09:47,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:09:47,709 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:09:47,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:09:47,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:09:47,710 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:09:48,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:09:48,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:09:48,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:09:48,157 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:09:48,158 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:09:48,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/cstrncat_mixed_alloca.i [2022-10-16 17:09:48,249 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9979774bc/f6f80d21d9c040dcb5e94198dfbee494/FLAGbb4a79ced [2022-10-16 17:09:48,964 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:09:48,964 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/cstrncat_mixed_alloca.i [2022-10-16 17:09:48,980 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9979774bc/f6f80d21d9c040dcb5e94198dfbee494/FLAGbb4a79ced [2022-10-16 17:09:49,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9979774bc/f6f80d21d9c040dcb5e94198dfbee494 [2022-10-16 17:09:49,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:09:49,199 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:09:49,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:09:49,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:09:49,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:09:49,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:09:49" (1/1) ... [2022-10-16 17:09:49,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c3e6d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:49, skipping insertion in model container [2022-10-16 17:09:49,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:09:49" (1/1) ... [2022-10-16 17:09:49,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:09:49,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:09:49,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:09:49,564 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:09:49,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:09:49,653 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:09:49,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:49 WrapperNode [2022-10-16 17:09:49,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:09:49,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:09:49,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:09:49,656 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:09:49,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:49" (1/1) ... [2022-10-16 17:09:49,679 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:49" (1/1) ... [2022-10-16 17:09:49,706 INFO L138 Inliner]: procedures = 152, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 101 [2022-10-16 17:09:49,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:09:49,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:09:49,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:09:49,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:09:49,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:49" (1/1) ... [2022-10-16 17:09:49,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:49" (1/1) ... [2022-10-16 17:09:49,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:49" (1/1) ... [2022-10-16 17:09:49,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:49" (1/1) ... [2022-10-16 17:09:49,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:49" (1/1) ... [2022-10-16 17:09:49,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:49" (1/1) ... [2022-10-16 17:09:49,734 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:49" (1/1) ... [2022-10-16 17:09:49,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:49" (1/1) ... [2022-10-16 17:09:49,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:09:49,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:09:49,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:09:49,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:09:49,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:49" (1/1) ... [2022-10-16 17:09:49,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:09:49,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:49,779 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 17:09:49,781 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 17:09:49,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 17:09:49,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 17:09:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 17:09:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 17:09:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:09:49,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:09:49,920 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:09:49,923 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:09:50,356 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:09:50,370 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:09:50,370 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 17:09:50,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:09:50 BoogieIcfgContainer [2022-10-16 17:09:50,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:09:50,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:09:50,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:09:50,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:09:50,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:09:49" (1/3) ... [2022-10-16 17:09:50,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7dfdd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:09:50, skipping insertion in model container [2022-10-16 17:09:50,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:09:49" (2/3) ... [2022-10-16 17:09:50,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7dfdd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:09:50, skipping insertion in model container [2022-10-16 17:09:50,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:09:50" (3/3) ... [2022-10-16 17:09:50,385 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrncat_mixed_alloca.i [2022-10-16 17:09:50,410 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:09:50,410 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-16 17:09:50,475 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:09:50,484 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;@1e7520ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:09:50,484 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-16 17:09:50,490 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 29 states have (on average 1.7241379310344827) internal successors, (50), 39 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 17:09:50,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 17:09:50,498 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:50,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:50,499 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 17:09:50,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:50,506 INFO L85 PathProgramCache]: Analyzing trace with hash 121384846, now seen corresponding path program 1 times [2022-10-16 17:09:50,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:50,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140900088] [2022-10-16 17:09:50,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:50,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:50,768 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 17:09:50,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:50,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140900088] [2022-10-16 17:09:50,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140900088] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:50,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:50,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:09:50,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637482985] [2022-10-16 17:09:50,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:50,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:09:50,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:50,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:09:50,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:09:50,853 INFO L87 Difference]: Start difference. First operand has 40 states, 29 states have (on average 1.7241379310344827) internal successors, (50), 39 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) Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 17:09:50,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:50,997 INFO L93 Difference]: Finished difference Result 91 states and 113 transitions. [2022-10-16 17:09:51,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:09:51,002 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 17:09:51,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:51,014 INFO L225 Difference]: With dead ends: 91 [2022-10-16 17:09:51,014 INFO L226 Difference]: Without dead ends: 60 [2022-10-16 17:09:51,018 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 17:09:51,023 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 75 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:51,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 95 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:09:51,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-10-16 17:09:51,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 43. [2022-10-16 17:09:51,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 33 states have (on average 1.6363636363636365) internal successors, (54), 42 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:51,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2022-10-16 17:09:51,071 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 8 [2022-10-16 17:09:51,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:51,072 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2022-10-16 17:09:51,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 17:09:51,073 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2022-10-16 17:09:51,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 17:09:51,073 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:51,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:51,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:09:51,075 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 17:09:51,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:51,076 INFO L85 PathProgramCache]: Analyzing trace with hash 178643148, now seen corresponding path program 1 times [2022-10-16 17:09:51,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:51,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203235674] [2022-10-16 17:09:51,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:51,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:51,136 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 17:09:51,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:51,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203235674] [2022-10-16 17:09:51,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203235674] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:51,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:51,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:09:51,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629336276] [2022-10-16 17:09:51,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:51,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:09:51,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:51,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:09:51,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:09:51,142 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 17:09:51,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:51,185 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2022-10-16 17:09:51,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:09:51,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 17:09:51,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:51,187 INFO L225 Difference]: With dead ends: 43 [2022-10-16 17:09:51,187 INFO L226 Difference]: Without dead ends: 40 [2022-10-16 17:09:51,188 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 17:09:51,190 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 57 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:51,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 26 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:51,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-10-16 17:09:51,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 30. [2022-10-16 17:09:51,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.565217391304348) internal successors, (36), 29 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 17:09:51,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2022-10-16 17:09:51,198 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 8 [2022-10-16 17:09:51,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:51,199 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2022-10-16 17:09:51,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 17:09:51,200 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2022-10-16 17:09:51,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 17:09:51,200 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:51,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:51,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:09:51,201 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 17:09:51,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:51,202 INFO L85 PathProgramCache]: Analyzing trace with hash -532037010, now seen corresponding path program 1 times [2022-10-16 17:09:51,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:51,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076028162] [2022-10-16 17:09:51,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:51,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:51,292 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 17:09:51,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:51,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076028162] [2022-10-16 17:09:51,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076028162] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:51,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:51,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:09:51,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965727794] [2022-10-16 17:09:51,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:51,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:09:51,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:51,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:09:51,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:09:51,297 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:51,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:51,381 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2022-10-16 17:09:51,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:09:51,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 17:09:51,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:51,383 INFO L225 Difference]: With dead ends: 55 [2022-10-16 17:09:51,383 INFO L226 Difference]: Without dead ends: 52 [2022-10-16 17:09:51,384 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 17:09:51,385 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 78 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:51,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 44 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:09:51,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-10-16 17:09:51,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 39. [2022-10-16 17:09:51,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.4375) internal successors, (46), 38 states have internal predecessors, (46), 0 states have call successors, (0), 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 17:09:51,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2022-10-16 17:09:51,399 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 9 [2022-10-16 17:09:51,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:51,399 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2022-10-16 17:09:51,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:51,400 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2022-10-16 17:09:51,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 17:09:51,401 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:51,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:51,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 17:09:51,401 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:51,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:51,402 INFO L85 PathProgramCache]: Analyzing trace with hash -530189968, now seen corresponding path program 1 times [2022-10-16 17:09:51,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:51,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230110291] [2022-10-16 17:09:51,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:51,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:51,455 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 17:09:51,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:51,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230110291] [2022-10-16 17:09:51,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230110291] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:51,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:51,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:09:51,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897998637] [2022-10-16 17:09:51,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:51,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:09:51,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:51,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:09:51,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:09:51,460 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:51,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:51,529 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2022-10-16 17:09:51,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:09:51,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 17:09:51,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:51,531 INFO L225 Difference]: With dead ends: 52 [2022-10-16 17:09:51,531 INFO L226 Difference]: Without dead ends: 49 [2022-10-16 17:09:51,533 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 17:09:51,538 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 53 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:51,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 57 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:51,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-16 17:09:51,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 27. [2022-10-16 17:09:51,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.434782608695652) internal successors, (33), 26 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:51,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2022-10-16 17:09:51,555 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 9 [2022-10-16 17:09:51,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:51,559 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2022-10-16 17:09:51,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:51,560 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2022-10-16 17:09:51,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 17:09:51,560 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:51,562 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:51,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 17:09:51,562 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 17:09:51,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:51,563 INFO L85 PathProgramCache]: Analyzing trace with hash -334311568, now seen corresponding path program 1 times [2022-10-16 17:09:51,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:51,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360646927] [2022-10-16 17:09:51,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:51,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:51,770 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 17:09:51,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:51,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360646927] [2022-10-16 17:09:51,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360646927] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:51,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:51,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 17:09:51,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402268866] [2022-10-16 17:09:51,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:51,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:09:51,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:51,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:09:51,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:09:51,775 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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 17:09:51,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:51,890 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2022-10-16 17:09:51,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:09:51,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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 17:09:51,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:51,894 INFO L225 Difference]: With dead ends: 67 [2022-10-16 17:09:51,895 INFO L226 Difference]: Without dead ends: 49 [2022-10-16 17:09:51,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:09:51,901 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 56 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:51,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 94 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:09:51,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-16 17:09:51,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 29. [2022-10-16 17:09:51,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 25 states have (on average 1.4) internal successors, (35), 28 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 17:09:51,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2022-10-16 17:09:51,914 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 13 [2022-10-16 17:09:51,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:51,917 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-10-16 17:09:51,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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 17:09:51,918 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-10-16 17:09:51,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 17:09:51,919 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:51,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:51,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 17:09:51,920 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:51,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:51,921 INFO L85 PathProgramCache]: Analyzing trace with hash 345746802, now seen corresponding path program 1 times [2022-10-16 17:09:51,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:51,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81023293] [2022-10-16 17:09:51,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:51,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:51,999 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 17:09:52,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:52,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81023293] [2022-10-16 17:09:52,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81023293] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:52,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:52,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:09:52,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97234671] [2022-10-16 17:09:52,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:52,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:09:52,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:52,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:09:52,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:09:52,003 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 17:09:52,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:52,014 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2022-10-16 17:09:52,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:09:52,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 17:09:52,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:52,015 INFO L225 Difference]: With dead ends: 47 [2022-10-16 17:09:52,015 INFO L226 Difference]: Without dead ends: 29 [2022-10-16 17:09:52,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 17:09:52,017 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:52,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:52,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-10-16 17:09:52,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-10-16 17:09:52,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.391304347826087) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:52,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2022-10-16 17:09:52,023 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 13 [2022-10-16 17:09:52,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:52,024 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2022-10-16 17:09:52,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 17:09:52,024 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-10-16 17:09:52,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 17:09:52,025 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:52,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:52,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 17:09:52,026 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:52,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:52,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1843181748, now seen corresponding path program 1 times [2022-10-16 17:09:52,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:52,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251996105] [2022-10-16 17:09:52,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:52,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:52,088 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 17:09:52,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:52,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251996105] [2022-10-16 17:09:52,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251996105] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:52,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:52,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:09:52,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929118661] [2022-10-16 17:09:52,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:52,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:09:52,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:52,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:09:52,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:09:52,091 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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 17:09:52,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:52,112 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-10-16 17:09:52,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:09:52,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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 17:09:52,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:52,114 INFO L225 Difference]: With dead ends: 49 [2022-10-16 17:09:52,114 INFO L226 Difference]: Without dead ends: 48 [2022-10-16 17:09:52,114 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 17:09:52,116 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 15 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:52,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 50 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:52,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-10-16 17:09:52,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 38. [2022-10-16 17:09:52,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 37 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 17:09:52,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2022-10-16 17:09:52,123 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 15 [2022-10-16 17:09:52,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:52,124 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2022-10-16 17:09:52,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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 17:09:52,124 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2022-10-16 17:09:52,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 17:09:52,125 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:52,125 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:52,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 17:09:52,126 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:52,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:52,127 INFO L85 PathProgramCache]: Analyzing trace with hash 2101347186, now seen corresponding path program 1 times [2022-10-16 17:09:52,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:52,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605316791] [2022-10-16 17:09:52,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:52,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:52,252 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 17:09:52,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:52,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605316791] [2022-10-16 17:09:52,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605316791] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:52,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:52,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:09:52,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694596885] [2022-10-16 17:09:52,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:52,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:09:52,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:52,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:09:52,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:09:52,262 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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 17:09:52,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:52,277 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2022-10-16 17:09:52,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:09:52,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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 17:09:52,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:52,279 INFO L225 Difference]: With dead ends: 38 [2022-10-16 17:09:52,279 INFO L226 Difference]: Without dead ends: 37 [2022-10-16 17:09:52,279 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 17:09:52,280 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:52,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 25 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:52,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-10-16 17:09:52,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2022-10-16 17:09:52,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:52,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-10-16 17:09:52,287 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 15 [2022-10-16 17:09:52,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:52,287 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-10-16 17:09:52,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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 17:09:52,288 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-10-16 17:09:52,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 17:09:52,288 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:52,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:52,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 17:09:52,289 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:52,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:52,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1304059418, now seen corresponding path program 1 times [2022-10-16 17:09:52,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:52,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86633277] [2022-10-16 17:09:52,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:52,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:52,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:52,384 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 17:09:52,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:52,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86633277] [2022-10-16 17:09:52,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86633277] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:52,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:52,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 17:09:52,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336211783] [2022-10-16 17:09:52,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:52,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:09:52,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:52,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:09:52,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:09:52,388 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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 17:09:52,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:52,463 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-10-16 17:09:52,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:09:52,464 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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 17:09:52,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:52,465 INFO L225 Difference]: With dead ends: 49 [2022-10-16 17:09:52,465 INFO L226 Difference]: Without dead ends: 26 [2022-10-16 17:09:52,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 17:09:52,467 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 15 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:52,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 101 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:52,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-10-16 17:09:52,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-10-16 17:09:52,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:52,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2022-10-16 17:09:52,473 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 16 [2022-10-16 17:09:52,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:52,473 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-10-16 17:09:52,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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 17:09:52,473 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2022-10-16 17:09:52,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 17:09:52,474 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:52,474 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:52,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 17:09:52,475 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:52,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:52,475 INFO L85 PathProgramCache]: Analyzing trace with hash 292942168, now seen corresponding path program 1 times [2022-10-16 17:09:52,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:52,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83165611] [2022-10-16 17:09:52,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:52,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:52,519 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 17:09:52,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:52,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83165611] [2022-10-16 17:09:52,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83165611] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:52,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:52,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:09:52,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168542051] [2022-10-16 17:09:52,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:52,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:09:52,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:52,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:09:52,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:09:52,522 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:52,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:52,533 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2022-10-16 17:09:52,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:09:52,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 17:09:52,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:52,534 INFO L225 Difference]: With dead ends: 26 [2022-10-16 17:09:52,534 INFO L226 Difference]: Without dead ends: 25 [2022-10-16 17:09:52,535 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 17:09:52,535 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 13 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:52,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 27 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:52,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-10-16 17:09:52,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-10-16 17:09:52,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 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 17:09:52,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2022-10-16 17:09:52,541 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 16 [2022-10-16 17:09:52,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:52,541 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2022-10-16 17:09:52,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:52,542 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2022-10-16 17:09:52,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 17:09:52,543 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:52,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:52,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 17:09:52,543 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:52,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:52,544 INFO L85 PathProgramCache]: Analyzing trace with hash -450077536, now seen corresponding path program 1 times [2022-10-16 17:09:52,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:52,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215069666] [2022-10-16 17:09:52,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:52,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:52,667 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 17:09:52,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:52,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215069666] [2022-10-16 17:09:52,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215069666] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:52,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:52,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:09:52,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862403226] [2022-10-16 17:09:52,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:52,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:09:52,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:52,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:09:52,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:09:52,670 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 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 17:09:52,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:52,726 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2022-10-16 17:09:52,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:09:52,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-10-16 17:09:52,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:52,728 INFO L225 Difference]: With dead ends: 45 [2022-10-16 17:09:52,728 INFO L226 Difference]: Without dead ends: 44 [2022-10-16 17:09:52,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:09:52,730 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 17 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:52,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 67 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:52,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-10-16 17:09:52,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2022-10-16 17:09:52,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 42 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 17:09:52,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2022-10-16 17:09:52,742 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 22 [2022-10-16 17:09:52,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:52,745 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2022-10-16 17:09:52,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 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 17:09:52,746 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2022-10-16 17:09:52,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 17:09:52,753 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:52,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:52,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 17:09:52,753 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:52,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:52,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1850745054, now seen corresponding path program 1 times [2022-10-16 17:09:52,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:52,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935107835] [2022-10-16 17:09:52,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:52,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:52,880 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 17:09:52,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:52,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935107835] [2022-10-16 17:09:52,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935107835] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:52,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:52,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:09:52,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146160912] [2022-10-16 17:09:52,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:52,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:09:52,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:52,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:09:52,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:09:52,882 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 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 17:09:52,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:52,923 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2022-10-16 17:09:52,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:09:52,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-10-16 17:09:52,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:52,924 INFO L225 Difference]: With dead ends: 43 [2022-10-16 17:09:52,924 INFO L226 Difference]: Without dead ends: 42 [2022-10-16 17:09:52,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:09:52,925 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 18 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:52,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 35 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:52,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-16 17:09:52,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 24. [2022-10-16 17:09:52,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:52,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-10-16 17:09:52,930 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 22 [2022-10-16 17:09:52,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:52,931 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-10-16 17:09:52,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 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 17:09:52,931 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-10-16 17:09:52,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 17:09:52,932 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:52,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:52,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 17:09:52,932 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:52,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:52,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1067501618, now seen corresponding path program 1 times [2022-10-16 17:09:52,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:52,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317502245] [2022-10-16 17:09:52,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:52,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:53,032 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 17:09:53,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:53,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317502245] [2022-10-16 17:09:53,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317502245] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:53,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:09:53,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:09:53,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988332849] [2022-10-16 17:09:53,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:53,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:09:53,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:53,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:09:53,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:09:53,035 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 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 17:09:53,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:53,081 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2022-10-16 17:09:53,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:09:53,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2022-10-16 17:09:53,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:53,083 INFO L225 Difference]: With dead ends: 30 [2022-10-16 17:09:53,083 INFO L226 Difference]: Without dead ends: 29 [2022-10-16 17:09:53,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:09:53,086 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 20 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:53,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 49 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:53,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-10-16 17:09:53,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-10-16 17:09:53,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:53,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-10-16 17:09:53,103 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 23 [2022-10-16 17:09:53,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:53,103 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-10-16 17:09:53,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 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 17:09:53,104 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2022-10-16 17:09:53,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 17:09:53,107 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:53,107 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, 1, 1] [2022-10-16 17:09:53,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 17:09:53,108 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:53,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:53,109 INFO L85 PathProgramCache]: Analyzing trace with hash -495298149, now seen corresponding path program 1 times [2022-10-16 17:09:53,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:53,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592994907] [2022-10-16 17:09:53,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:53,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:53,296 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 17:09:53,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:53,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592994907] [2022-10-16 17:09:53,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592994907] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:53,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405252795] [2022-10-16 17:09:53,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:53,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:53,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:53,303 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 17:09:53,318 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 17:09:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:53,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 17:09:53,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:53,559 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 17:09:53,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:53,676 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 17:09:53,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405252795] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:53,676 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:53,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-10-16 17:09:53,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672890170] [2022-10-16 17:09:53,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:53,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:09:53,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:53,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:09:53,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:09:53,679 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 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 17:09:53,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:53,842 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2022-10-16 17:09:53,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 17:09:53,843 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 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 28 [2022-10-16 17:09:53,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:53,843 INFO L225 Difference]: With dead ends: 45 [2022-10-16 17:09:53,843 INFO L226 Difference]: Without dead ends: 44 [2022-10-16 17:09:53,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-10-16 17:09:53,845 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 88 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:53,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 96 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:09:53,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-10-16 17:09:53,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-10-16 17:09:53,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 43 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 17:09:53,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2022-10-16 17:09:53,852 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 28 [2022-10-16 17:09:53,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:53,852 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2022-10-16 17:09:53,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 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 17:09:53,852 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2022-10-16 17:09:53,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 17:09:53,853 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:53,854 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:53,893 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 17:09:54,067 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,SelfDestructingSolverStorable13 [2022-10-16 17:09:54,068 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:54,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:54,069 INFO L85 PathProgramCache]: Analyzing trace with hash 762560526, now seen corresponding path program 2 times [2022-10-16 17:09:54,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:54,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546434560] [2022-10-16 17:09:54,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:54,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:54,374 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:54,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:54,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546434560] [2022-10-16 17:09:54,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546434560] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:54,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768525695] [2022-10-16 17:09:54,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:09:54,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:54,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:54,376 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 17:09:54,380 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 17:09:54,467 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:09:54,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:09:54,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 17:09:54,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:54,546 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:54,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:54,754 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:54,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768525695] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:54,755 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:54,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-10-16 17:09:54,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017005909] [2022-10-16 17:09:54,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:54,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 17:09:54,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:54,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 17:09:54,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-10-16 17:09:54,757 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 24 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 24 states have internal predecessors, (82), 0 states have call successors, (0), 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 17:09:55,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:55,149 INFO L93 Difference]: Finished difference Result 75 states and 94 transitions. [2022-10-16 17:09:55,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 17:09:55,149 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 24 states have internal predecessors, (82), 0 states have call successors, (0), 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 43 [2022-10-16 17:09:55,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:55,151 INFO L225 Difference]: With dead ends: 75 [2022-10-16 17:09:55,152 INFO L226 Difference]: Without dead ends: 74 [2022-10-16 17:09:55,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=526, Invalid=1366, Unknown=0, NotChecked=0, Total=1892 [2022-10-16 17:09:55,155 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 173 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:55,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 141 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:09:55,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-10-16 17:09:55,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-10-16 17:09:55,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.2054794520547945) internal successors, (88), 73 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:09:55,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 88 transitions. [2022-10-16 17:09:55,178 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 88 transitions. Word has length 43 [2022-10-16 17:09:55,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:55,179 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 88 transitions. [2022-10-16 17:09:55,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 24 states have internal predecessors, (82), 0 states have call successors, (0), 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 17:09:55,179 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 88 transitions. [2022-10-16 17:09:55,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-16 17:09:55,185 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:55,185 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:55,215 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 17:09:55,398 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,SelfDestructingSolverStorable14 [2022-10-16 17:09:55,399 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:55,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:55,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1713561490, now seen corresponding path program 3 times [2022-10-16 17:09:55,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:55,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104960311] [2022-10-16 17:09:55,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:55,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:56,159 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:56,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:56,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104960311] [2022-10-16 17:09:56,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104960311] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:56,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001695916] [2022-10-16 17:09:56,160 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:09:56,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:56,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:56,166 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 17:09:56,198 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 17:09:56,298 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-16 17:09:56,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:09:56,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 30 conjunts are in the unsatisfiable core [2022-10-16 17:09:56,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:56,445 INFO L356 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-10-16 17:09:56,446 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2022-10-16 17:09:56,461 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-10-16 17:09:56,482 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-10-16 17:09:56,533 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 16 treesize of output 5 [2022-10-16 17:09:56,536 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 5 treesize of output 3 [2022-10-16 17:09:56,640 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-10-16 17:09:56,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:09:56,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001695916] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:09:56,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:09:56,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [24] total 30 [2022-10-16 17:09:56,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604923539] [2022-10-16 17:09:56,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:09:56,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:09:56,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:56,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:09:56,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=700, Unknown=0, NotChecked=0, Total=870 [2022-10-16 17:09:56,643 INFO L87 Difference]: Start difference. First operand 74 states and 88 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 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 17:09:56,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:56,762 INFO L93 Difference]: Finished difference Result 156 states and 183 transitions. [2022-10-16 17:09:56,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 17:09:56,763 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 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 73 [2022-10-16 17:09:56,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:56,764 INFO L225 Difference]: With dead ends: 156 [2022-10-16 17:09:56,764 INFO L226 Difference]: Without dead ends: 74 [2022-10-16 17:09:56,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=191, Invalid=865, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 17:09:56,766 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 19 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:56,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 104 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:09:56,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-10-16 17:09:56,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-10-16 17:09:56,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.0410958904109588) internal successors, (76), 73 states have internal predecessors, (76), 0 states have call successors, (0), 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 17:09:56,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 76 transitions. [2022-10-16 17:09:56,777 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 76 transitions. Word has length 73 [2022-10-16 17:09:56,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:56,778 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 76 transitions. [2022-10-16 17:09:56,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 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 17:09:56,778 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2022-10-16 17:09:56,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-16 17:09:56,779 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:56,779 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:56,806 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 17:09:56,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:56,994 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:56,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:56,995 INFO L85 PathProgramCache]: Analyzing trace with hash 194896300, now seen corresponding path program 1 times [2022-10-16 17:09:56,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:56,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928238010] [2022-10-16 17:09:56,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:56,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:09:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:57,782 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:57,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:09:57,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928238010] [2022-10-16 17:09:57,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928238010] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:09:57,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076047082] [2022-10-16 17:09:57,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:57,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:09:57,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:09:57,785 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 17:09:57,810 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 17:09:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:09:57,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 17:09:57,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:09:58,050 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:58,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:58,649 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:09:58,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076047082] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:58,650 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:58,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-10-16 17:09:58,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547648331] [2022-10-16 17:09:58,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:58,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-10-16 17:09:58,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:58,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-10-16 17:09:58,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 17:09:58,654 INFO L87 Difference]: Start difference. First operand 74 states and 76 transitions. Second operand has 48 states, 47 states have (on average 3.021276595744681) internal successors, (142), 48 states have internal predecessors, (142), 0 states have call successors, (0), 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 17:09:59,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:09:59,739 INFO L93 Difference]: Finished difference Result 135 states and 148 transitions. [2022-10-16 17:09:59,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-10-16 17:09:59,740 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 3.021276595744681) internal successors, (142), 48 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-10-16 17:09:59,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:09:59,741 INFO L225 Difference]: With dead ends: 135 [2022-10-16 17:09:59,741 INFO L226 Difference]: Without dead ends: 134 [2022-10-16 17:09:59,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2113 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2206, Invalid=6166, Unknown=0, NotChecked=0, Total=8372 [2022-10-16 17:09:59,746 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 327 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:09:59,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 142 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:09:59,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-10-16 17:09:59,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-10-16 17:09:59,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.0225563909774436) internal successors, (136), 133 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 17:09:59,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 136 transitions. [2022-10-16 17:09:59,764 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 136 transitions. Word has length 73 [2022-10-16 17:09:59,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:09:59,764 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 136 transitions. [2022-10-16 17:09:59,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 3.021276595744681) internal successors, (142), 48 states have internal predecessors, (142), 0 states have call successors, (0), 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 17:09:59,765 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 136 transitions. [2022-10-16 17:09:59,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-16 17:09:59,766 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:09:59,767 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:09:59,799 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-10-16 17:09:59,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 17:09:59,982 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:09:59,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:09:59,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1134737044, now seen corresponding path program 2 times [2022-10-16 17:09:59,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:09:59,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669717757] [2022-10-16 17:09:59,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:09:59,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:10:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:10:02,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:10:02,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:10:02,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669717757] [2022-10-16 17:10:02,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669717757] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:10:02,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916567557] [2022-10-16 17:10:02,523 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:10:02,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:10:02,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:10:02,524 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 17:10:02,528 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 17:10:02,701 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:10:02,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:10:02,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 49 conjunts are in the unsatisfiable core [2022-10-16 17:10:02,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:10:02,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:10:02,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:10:05,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:10:05,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916567557] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:10:05,134 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:10:05,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-10-16 17:10:05,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854323011] [2022-10-16 17:10:05,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:10:05,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-10-16 17:10:05,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:10:05,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-10-16 17:10:05,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2022-10-16 17:10:05,142 INFO L87 Difference]: Start difference. First operand 134 states and 136 transitions. Second operand has 96 states, 95 states have (on average 2.7578947368421054) internal successors, (262), 96 states have internal predecessors, (262), 0 states have call successors, (0), 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 17:10:09,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:10:09,165 INFO L93 Difference]: Finished difference Result 255 states and 280 transitions. [2022-10-16 17:10:09,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-10-16 17:10:09,166 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 2.7578947368421054) internal successors, (262), 96 states have internal predecessors, (262), 0 states have call successors, (0), 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 133 [2022-10-16 17:10:09,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:10:09,169 INFO L225 Difference]: With dead ends: 255 [2022-10-16 17:10:09,169 INFO L226 Difference]: Without dead ends: 254 [2022-10-16 17:10:09,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9523 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=9022, Invalid=26134, Unknown=0, NotChecked=0, Total=35156 [2022-10-16 17:10:09,179 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 489 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:10:09,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 130 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 17:10:09,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-10-16 17:10:09,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2022-10-16 17:10:09,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 253 states have (on average 1.0118577075098814) internal successors, (256), 253 states have internal predecessors, (256), 0 states have call successors, (0), 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 17:10:09,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 256 transitions. [2022-10-16 17:10:09,214 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 256 transitions. Word has length 133 [2022-10-16 17:10:09,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:10:09,215 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 256 transitions. [2022-10-16 17:10:09,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 2.7578947368421054) internal successors, (262), 96 states have internal predecessors, (262), 0 states have call successors, (0), 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 17:10:09,217 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 256 transitions. [2022-10-16 17:10:09,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-10-16 17:10:09,220 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:10:09,221 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:10:09,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 17:10:09,435 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,SelfDestructingSolverStorable17 [2022-10-16 17:10:09,436 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:10:09,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:10:09,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1370470636, now seen corresponding path program 3 times [2022-10-16 17:10:09,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:10:09,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364012789] [2022-10-16 17:10:09,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:10:09,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:10:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:10:18,205 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:10:18,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:10:18,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364012789] [2022-10-16 17:10:18,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364012789] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:10:18,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184456463] [2022-10-16 17:10:18,207 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:10:18,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:10:18,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:10:18,212 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 17:10:18,217 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 17:10:18,466 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-10-16 17:10:18,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:10:18,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 17:10:18,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:10:18,697 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 318 proven. 2 refuted. 0 times theorem prover too weak. 5085 trivial. 0 not checked. [2022-10-16 17:10:18,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:10:18,748 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 318 proven. 2 refuted. 0 times theorem prover too weak. 5085 trivial. 0 not checked. [2022-10-16 17:10:18,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184456463] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:10:18,749 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:10:18,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 7, 7] total 102 [2022-10-16 17:10:18,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479908078] [2022-10-16 17:10:18,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:10:18,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-10-16 17:10:18,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:10:18,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-10-16 17:10:18,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2504, Invalid=7798, Unknown=0, NotChecked=0, Total=10302 [2022-10-16 17:10:18,756 INFO L87 Difference]: Start difference. First operand 254 states and 256 transitions. Second operand has 102 states, 102 states have (on average 2.7450980392156863) internal successors, (280), 102 states have internal predecessors, (280), 0 states have call successors, (0), 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 17:10:24,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:10:24,117 INFO L93 Difference]: Finished difference Result 508 states and 512 transitions. [2022-10-16 17:10:24,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-10-16 17:10:24,118 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 2.7450980392156863) internal successors, (280), 102 states have internal predecessors, (280), 0 states have call successors, (0), 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 253 [2022-10-16 17:10:24,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:10:24,119 INFO L225 Difference]: With dead ends: 508 [2022-10-16 17:10:24,119 INFO L226 Difference]: Without dead ends: 259 [2022-10-16 17:10:24,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 500 SyntacticMatches, 0 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8879 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=9950, Invalid=29850, Unknown=0, NotChecked=0, Total=39800 [2022-10-16 17:10:24,127 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 567 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:10:24,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 176 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 17:10:24,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-10-16 17:10:24,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2022-10-16 17:10:24,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 258 states have (on average 1.0077519379844961) internal successors, (260), 258 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:10:24,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 260 transitions. [2022-10-16 17:10:24,157 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 260 transitions. Word has length 253 [2022-10-16 17:10:24,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:10:24,158 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 260 transitions. [2022-10-16 17:10:24,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 2.7450980392156863) internal successors, (280), 102 states have internal predecessors, (280), 0 states have call successors, (0), 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 17:10:24,159 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 260 transitions. [2022-10-16 17:10:24,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-10-16 17:10:24,162 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:10:24,163 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 48, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:10:24,202 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 17:10:24,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:10:24,377 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 17:10:24,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:10:24,378 INFO L85 PathProgramCache]: Analyzing trace with hash 406186619, now seen corresponding path program 1 times [2022-10-16 17:10:24,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:10:24,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33410230] [2022-10-16 17:10:24,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:10:24,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:10:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:10:32,262 INFO L134 CoverageAnalysis]: Checked inductivity of 5640 backedges. 0 proven. 5640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:10:32,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:10:32,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33410230] [2022-10-16 17:10:32,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33410230] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:10:32,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132195298] [2022-10-16 17:10:32,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:10:32,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:10:32,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:10:32,264 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 17:10:32,265 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 17:10:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:10:32,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 99 conjunts are in the unsatisfiable core [2022-10-16 17:10:32,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:10:33,015 INFO L134 CoverageAnalysis]: Checked inductivity of 5640 backedges. 0 proven. 5640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:10:33,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:10:42,411 INFO L134 CoverageAnalysis]: Checked inductivity of 5640 backedges. 0 proven. 5640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:10:42,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132195298] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:10:42,412 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:10:42,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98, 98] total 195 [2022-10-16 17:10:42,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403971668] [2022-10-16 17:10:42,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:10:42,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 196 states [2022-10-16 17:10:42,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:10:42,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2022-10-16 17:10:42,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9510, Invalid=28710, Unknown=0, NotChecked=0, Total=38220 [2022-10-16 17:10:42,422 INFO L87 Difference]: Start difference. First operand 259 states and 260 transitions. Second operand has 196 states, 195 states have (on average 2.6256410256410256) internal successors, (512), 196 states have internal predecessors, (512), 0 states have call successors, (0), 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 17:10:58,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:10:58,981 INFO L93 Difference]: Finished difference Result 505 states and 554 transitions. [2022-10-16 17:10:58,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2022-10-16 17:10:58,982 INFO L78 Accepts]: Start accepts. Automaton has has 196 states, 195 states have (on average 2.6256410256410256) internal successors, (512), 196 states have internal predecessors, (512), 0 states have call successors, (0), 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 258 [2022-10-16 17:10:58,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:10:58,985 INFO L225 Difference]: With dead ends: 505 [2022-10-16 17:10:58,985 INFO L226 Difference]: Without dead ends: 504 [2022-10-16 17:10:58,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 417 SyntacticMatches, 1 SemanticMatches, 386 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42073 ImplicationChecksByTransitivity, 26.6s TimeCoverageRelationStatistics Valid=38022, Invalid=112134, Unknown=0, NotChecked=0, Total=150156 [2022-10-16 17:10:58,996 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1498 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 17:10:58,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 242 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 17:10:58,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2022-10-16 17:10:59,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2022-10-16 17:10:59,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 503 states have (on average 1.0039761431411531) internal successors, (505), 503 states have internal predecessors, (505), 0 states have call successors, (0), 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 17:10:59,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 505 transitions. [2022-10-16 17:10:59,040 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 505 transitions. Word has length 258 [2022-10-16 17:10:59,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:10:59,041 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 505 transitions. [2022-10-16 17:10:59,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 196 states, 195 states have (on average 2.6256410256410256) internal successors, (512), 196 states have internal predecessors, (512), 0 states have call successors, (0), 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 17:10:59,042 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 505 transitions. [2022-10-16 17:10:59,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2022-10-16 17:10:59,046 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:10:59,046 INFO L195 NwaCegarLoop]: trace histogram [97, 97, 97, 97, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:10:59,075 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 17:10:59,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:10:59,260 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:10:59,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:10:59,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1824583182, now seen corresponding path program 2 times [2022-10-16 17:10:59,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:10:59,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533351462] [2022-10-16 17:10:59,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:10:59,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:11:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:11:28,724 INFO L134 CoverageAnalysis]: Checked inductivity of 23280 backedges. 0 proven. 23280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:11:28,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:11:28,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533351462] [2022-10-16 17:11:28,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533351462] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:11:28,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848208910] [2022-10-16 17:11:28,725 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:11:28,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:11:28,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:11:28,726 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 17:11:28,727 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 17:11:29,304 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:11:29,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:11:29,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 2814 conjuncts, 197 conjunts are in the unsatisfiable core [2022-10-16 17:11:29,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:11:30,126 INFO L134 CoverageAnalysis]: Checked inductivity of 23280 backedges. 0 proven. 23280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:11:30,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:12:07,621 INFO L134 CoverageAnalysis]: Checked inductivity of 23280 backedges. 0 proven. 23280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:12:07,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848208910] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:12:07,622 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:12:07,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [196, 196, 196] total 391 [2022-10-16 17:12:07,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991793192] [2022-10-16 17:12:07,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:12:07,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 392 states [2022-10-16 17:12:07,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:12:07,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 392 interpolants. [2022-10-16 17:12:07,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38224, Invalid=115048, Unknown=0, NotChecked=0, Total=153272 [2022-10-16 17:12:07,646 INFO L87 Difference]: Start difference. First operand 504 states and 505 transitions. Second operand has 392 states, 391 states have (on average 2.5626598465473145) internal successors, (1002), 392 states have internal predecessors, (1002), 0 states have call successors, (0), 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 17:13:21,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:13:21,702 INFO L93 Difference]: Finished difference Result 995 states and 1093 transitions. [2022-10-16 17:13:21,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 391 states. [2022-10-16 17:13:21,704 INFO L78 Accepts]: Start accepts. Automaton has has 392 states, 391 states have (on average 2.5626598465473145) internal successors, (1002), 392 states have internal predecessors, (1002), 0 states have call successors, (0), 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 503 [2022-10-16 17:13:21,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:13:21,710 INFO L225 Difference]: With dead ends: 995 [2022-10-16 17:13:21,711 INFO L226 Difference]: Without dead ends: 994 [2022-10-16 17:13:21,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1588 GetRequests, 809 SyntacticMatches, 1 SemanticMatches, 778 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172952 ImplicationChecksByTransitivity, 109.3s TimeCoverageRelationStatistics Valid=152878, Invalid=454742, Unknown=0, NotChecked=0, Total=607620 [2022-10-16 17:13:21,745 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 3342 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3342 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 491 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:13:21,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3342 Valid, 349 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [491 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-16 17:13:21,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2022-10-16 17:13:21,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 994. [2022-10-16 17:13:21,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 993 states have (on average 1.002014098690836) internal successors, (995), 993 states have internal predecessors, (995), 0 states have call successors, (0), 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 17:13:21,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 995 transitions. [2022-10-16 17:13:21,840 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 995 transitions. Word has length 503 [2022-10-16 17:13:21,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:13:21,841 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 995 transitions. [2022-10-16 17:13:21,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 392 states, 391 states have (on average 2.5626598465473145) internal successors, (1002), 392 states have internal predecessors, (1002), 0 states have call successors, (0), 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 17:13:21,843 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 995 transitions. [2022-10-16 17:13:21,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 994 [2022-10-16 17:13:21,852 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:13:21,852 INFO L195 NwaCegarLoop]: trace histogram [195, 195, 195, 195, 194, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:13:21,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-10-16 17:13:22,067 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,SelfDestructingSolverStorable20 [2022-10-16 17:13:22,068 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 17:13:22,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:13:22,069 INFO L85 PathProgramCache]: Analyzing trace with hash -2132673490, now seen corresponding path program 3 times [2022-10-16 17:13:22,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:13:22,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145120303] [2022-10-16 17:13:22,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:13:22,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:13:24,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat