/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/systemc/pipeline.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 16:59:59,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 16:59:59,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 16:59:59,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 16:59:59,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 16:59:59,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 16:59:59,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 16:59:59,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 16:59:59,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 16:59:59,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 16:59:59,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 16:59:59,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 16:59:59,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 16:59:59,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 16:59:59,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 16:59:59,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 16:59:59,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 16:59:59,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 16:59:59,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 16:59:59,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 16:59:59,729 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 16:59:59,781 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 16:59:59,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 16:59:59,782 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 16:59:59,782 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 16:59:59,784 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 16:59:59,785 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 16:59:59,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 16:59:59,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 16:59:59,788 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 16:59:59,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 16:59:59,790 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 16:59:59,790 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 16:59:59,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 16:59:59,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 16:59:59,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 16:59:59,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 16:59:59,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 16:59:59,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 16:59:59,792 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 16:59:59,792 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 16:59:59,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 16:59:59,792 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 16:59:59,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 16:59:59,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 16:59:59,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 16:59:59,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 16:59:59,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 16:59:59,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 16:59:59,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 16:59:59,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 16:59:59,794 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 16:59:59,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 16:59:59,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 16:59:59,795 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:00:00,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:00:00,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:00:00,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:00:00,218 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:00:00,219 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:00:00,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/pipeline.cil-2.c [2022-10-16 17:00:00,296 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4edf1164d/837f2cf1d593484d9f17badc23779bf4/FLAG6e8600371 [2022-10-16 17:00:01,059 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:00:01,060 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/pipeline.cil-2.c [2022-10-16 17:00:01,073 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4edf1164d/837f2cf1d593484d9f17badc23779bf4/FLAG6e8600371 [2022-10-16 17:00:01,375 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4edf1164d/837f2cf1d593484d9f17badc23779bf4 [2022-10-16 17:00:01,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:00:01,389 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:00:01,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:00:01,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:00:01,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:00:01,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:00:01" (1/1) ... [2022-10-16 17:00:01,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@389521ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:01, skipping insertion in model container [2022-10-16 17:00:01,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:00:01" (1/1) ... [2022-10-16 17:00:01,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:00:01,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:00:01,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/pipeline.cil-2.c[640,653] [2022-10-16 17:00:01,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:00:01,784 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:00:01,808 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/pipeline.cil-2.c[640,653] [2022-10-16 17:00:01,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:00:01,963 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:00:01,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:01 WrapperNode [2022-10-16 17:00:01,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:00:01,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:00:01,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:00:01,967 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:00:01,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:01" (1/1) ... [2022-10-16 17:00:02,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:01" (1/1) ... [2022-10-16 17:00:02,091 INFO L138 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 438 [2022-10-16 17:00:02,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:00:02,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:00:02,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:00:02,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:00:02,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:01" (1/1) ... [2022-10-16 17:00:02,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:01" (1/1) ... [2022-10-16 17:00:02,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:01" (1/1) ... [2022-10-16 17:00:02,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:01" (1/1) ... [2022-10-16 17:00:02,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:01" (1/1) ... [2022-10-16 17:00:02,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:01" (1/1) ... [2022-10-16 17:00:02,182 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:01" (1/1) ... [2022-10-16 17:00:02,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:01" (1/1) ... [2022-10-16 17:00:02,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:00:02,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:00:02,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:00:02,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:00:02,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:01" (1/1) ... [2022-10-16 17:00:02,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:00:02,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:00:02,240 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 17:00:02,256 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 17:00:02,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 17:00:02,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 17:00:02,308 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2022-10-16 17:00:02,308 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2022-10-16 17:00:02,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:00:02,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:00:02,495 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:00:02,500 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:00:03,359 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:00:03,371 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:00:03,372 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 17:00:03,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:00:03 BoogieIcfgContainer [2022-10-16 17:00:03,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:00:03,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:00:03,378 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:00:03,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:00:03,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:00:01" (1/3) ... [2022-10-16 17:00:03,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb25fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:00:03, skipping insertion in model container [2022-10-16 17:00:03,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:00:01" (2/3) ... [2022-10-16 17:00:03,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb25fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:00:03, skipping insertion in model container [2022-10-16 17:00:03,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:00:03" (3/3) ... [2022-10-16 17:00:03,386 INFO L112 eAbstractionObserver]: Analyzing ICFG pipeline.cil-2.c [2022-10-16 17:00:03,410 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:00:03,410 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-10-16 17:00:03,485 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:00:03,500 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;@2ef9b2ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:00:03,501 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-10-16 17:00:03,508 INFO L276 IsEmpty]: Start isEmpty. Operand has 187 states, 166 states have (on average 1.8012048192771084) internal successors, (299), 183 states have internal predecessors, (299), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 17:00:03,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:03,547 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:03,548 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, 1, 1, 1, 1, 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 17:00:03,548 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:00:03,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:03,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1918522241, now seen corresponding path program 1 times [2022-10-16 17:00:03,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:03,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10548827] [2022-10-16 17:00:03,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:03,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:04,302 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 17:00:04,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:04,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10548827] [2022-10-16 17:00:04,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10548827] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:04,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:04,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:04,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574341563] [2022-10-16 17:00:04,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:04,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:04,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:04,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:04,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:04,363 INFO L87 Difference]: Start difference. First operand has 187 states, 166 states have (on average 1.8012048192771084) internal successors, (299), 183 states have internal predecessors, (299), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:04,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:04,669 INFO L93 Difference]: Finished difference Result 540 states and 900 transitions. [2022-10-16 17:00:04,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:00:04,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-16 17:00:04,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:04,688 INFO L225 Difference]: With dead ends: 540 [2022-10-16 17:00:04,688 INFO L226 Difference]: Without dead ends: 354 [2022-10-16 17:00:04,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 17:00:04,703 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 817 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:00:04,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 580 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:00:04,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-10-16 17:00:04,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 338. [2022-10-16 17:00:04,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 315 states have (on average 1.7809523809523808) internal successors, (561), 331 states have internal predecessors, (561), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2022-10-16 17:00:04,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 574 transitions. [2022-10-16 17:00:04,804 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 574 transitions. Word has length 50 [2022-10-16 17:00:04,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:04,804 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 574 transitions. [2022-10-16 17:00:04,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:04,805 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 574 transitions. [2022-10-16 17:00:04,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:04,808 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:04,808 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, 1, 1, 1, 1, 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 17:00:04,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:00:04,809 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:00:04,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:04,810 INFO L85 PathProgramCache]: Analyzing trace with hash 889162943, now seen corresponding path program 1 times [2022-10-16 17:00:04,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:04,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255396173] [2022-10-16 17:00:04,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:04,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:05,001 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 17:00:05,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:05,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255396173] [2022-10-16 17:00:05,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255396173] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:05,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:05,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:05,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029831048] [2022-10-16 17:00:05,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:05,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:05,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:05,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:05,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:05,006 INFO L87 Difference]: Start difference. First operand 338 states and 574 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:05,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:05,118 INFO L93 Difference]: Finished difference Result 689 states and 1151 transitions. [2022-10-16 17:00:05,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:00:05,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-16 17:00:05,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:05,122 INFO L225 Difference]: With dead ends: 689 [2022-10-16 17:00:05,122 INFO L226 Difference]: Without dead ends: 354 [2022-10-16 17:00:05,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 17:00:05,128 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 810 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:00:05,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 575 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:00:05,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-10-16 17:00:05,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 338. [2022-10-16 17:00:05,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 315 states have (on average 1.7746031746031745) internal successors, (559), 331 states have internal predecessors, (559), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2022-10-16 17:00:05,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 572 transitions. [2022-10-16 17:00:05,161 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 572 transitions. Word has length 50 [2022-10-16 17:00:05,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:05,162 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 572 transitions. [2022-10-16 17:00:05,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:05,163 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 572 transitions. [2022-10-16 17:00:05,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:05,165 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:05,165 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, 1, 1, 1, 1, 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 17:00:05,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:00:05,166 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:00:05,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:05,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1548694465, now seen corresponding path program 1 times [2022-10-16 17:00:05,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:05,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268814849] [2022-10-16 17:00:05,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:05,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:05,353 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 17:00:05,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:05,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268814849] [2022-10-16 17:00:05,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268814849] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:05,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:05,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:05,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280773150] [2022-10-16 17:00:05,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:05,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:05,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:05,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:05,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:05,358 INFO L87 Difference]: Start difference. First operand 338 states and 572 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:05,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:05,459 INFO L93 Difference]: Finished difference Result 689 states and 1147 transitions. [2022-10-16 17:00:05,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:00:05,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-16 17:00:05,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:05,462 INFO L225 Difference]: With dead ends: 689 [2022-10-16 17:00:05,463 INFO L226 Difference]: Without dead ends: 354 [2022-10-16 17:00:05,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 17:00:05,468 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 805 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:00:05,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 573 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:00:05,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-10-16 17:00:05,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 338. [2022-10-16 17:00:05,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 315 states have (on average 1.7682539682539682) internal successors, (557), 331 states have internal predecessors, (557), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2022-10-16 17:00:05,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 570 transitions. [2022-10-16 17:00:05,497 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 570 transitions. Word has length 50 [2022-10-16 17:00:05,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:05,498 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 570 transitions. [2022-10-16 17:00:05,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:05,499 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 570 transitions. [2022-10-16 17:00:05,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:05,501 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:05,501 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, 1, 1, 1, 1, 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 17:00:05,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 17:00:05,501 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:00:05,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:05,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1154327679, now seen corresponding path program 1 times [2022-10-16 17:00:05,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:05,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906393603] [2022-10-16 17:00:05,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:05,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:05,657 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 17:00:05,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:05,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906393603] [2022-10-16 17:00:05,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906393603] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:05,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:05,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:05,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760256234] [2022-10-16 17:00:05,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:05,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:05,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:05,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:05,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:05,662 INFO L87 Difference]: Start difference. First operand 338 states and 570 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:05,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:05,766 INFO L93 Difference]: Finished difference Result 689 states and 1143 transitions. [2022-10-16 17:00:05,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:00:05,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-16 17:00:05,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:05,770 INFO L225 Difference]: With dead ends: 689 [2022-10-16 17:00:05,771 INFO L226 Difference]: Without dead ends: 354 [2022-10-16 17:00:05,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 17:00:05,776 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 800 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:00:05,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 571 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:00:05,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-10-16 17:00:05,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 338. [2022-10-16 17:00:05,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 315 states have (on average 1.7619047619047619) internal successors, (555), 331 states have internal predecessors, (555), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2022-10-16 17:00:05,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 568 transitions. [2022-10-16 17:00:05,803 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 568 transitions. Word has length 50 [2022-10-16 17:00:05,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:05,804 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 568 transitions. [2022-10-16 17:00:05,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:05,805 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 568 transitions. [2022-10-16 17:00:05,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:05,807 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:05,807 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, 1, 1, 1, 1, 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 17:00:05,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 17:00:05,808 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:00:05,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:05,809 INFO L85 PathProgramCache]: Analyzing trace with hash 310322177, now seen corresponding path program 1 times [2022-10-16 17:00:05,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:05,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351684456] [2022-10-16 17:00:05,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:05,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:05,919 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 17:00:05,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:05,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351684456] [2022-10-16 17:00:05,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351684456] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:05,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:05,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:05,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520656823] [2022-10-16 17:00:05,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:05,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:05,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:05,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:05,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:05,923 INFO L87 Difference]: Start difference. First operand 338 states and 568 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:06,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:06,023 INFO L93 Difference]: Finished difference Result 689 states and 1139 transitions. [2022-10-16 17:00:06,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:00:06,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-16 17:00:06,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:06,027 INFO L225 Difference]: With dead ends: 689 [2022-10-16 17:00:06,027 INFO L226 Difference]: Without dead ends: 354 [2022-10-16 17:00:06,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 17:00:06,032 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 795 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:00:06,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 569 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:00:06,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-10-16 17:00:06,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 338. [2022-10-16 17:00:06,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 315 states have (on average 1.7555555555555555) internal successors, (553), 331 states have internal predecessors, (553), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2022-10-16 17:00:06,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 566 transitions. [2022-10-16 17:00:06,058 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 566 transitions. Word has length 50 [2022-10-16 17:00:06,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:06,059 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 566 transitions. [2022-10-16 17:00:06,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:06,059 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 566 transitions. [2022-10-16 17:00:06,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:06,061 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:06,061 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, 1, 1, 1, 1, 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 17:00:06,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 17:00:06,061 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:00:06,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:06,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1933661121, now seen corresponding path program 1 times [2022-10-16 17:00:06,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:06,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308156058] [2022-10-16 17:00:06,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:06,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:06,176 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 17:00:06,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:06,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308156058] [2022-10-16 17:00:06,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308156058] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:06,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:06,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:06,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964289059] [2022-10-16 17:00:06,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:06,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:06,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:06,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:06,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:06,179 INFO L87 Difference]: Start difference. First operand 338 states and 566 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:06,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:06,332 INFO L93 Difference]: Finished difference Result 1108 states and 1870 transitions. [2022-10-16 17:00:06,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:00:06,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-16 17:00:06,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:06,338 INFO L225 Difference]: With dead ends: 1108 [2022-10-16 17:00:06,338 INFO L226 Difference]: Without dead ends: 773 [2022-10-16 17:00:06,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 17:00:06,344 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 605 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:00:06,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 858 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:00:06,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-10-16 17:00:06,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 757. [2022-10-16 17:00:06,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 728 states have (on average 1.7197802197802199) internal successors, (1252), 744 states have internal predecessors, (1252), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (22), 8 states have call predecessors, (22), 9 states have call successors, (22) [2022-10-16 17:00:06,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1283 transitions. [2022-10-16 17:00:06,397 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1283 transitions. Word has length 50 [2022-10-16 17:00:06,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:06,398 INFO L495 AbstractCegarLoop]: Abstraction has 757 states and 1283 transitions. [2022-10-16 17:00:06,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:06,399 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1283 transitions. [2022-10-16 17:00:06,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:06,400 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:06,400 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, 1, 1, 1, 1, 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 17:00:06,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 17:00:06,401 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:00:06,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:06,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1658901507, now seen corresponding path program 1 times [2022-10-16 17:00:06,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:06,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687381118] [2022-10-16 17:00:06,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:06,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:06,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:06,514 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 17:00:06,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:06,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687381118] [2022-10-16 17:00:06,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687381118] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:06,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:06,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:06,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374475345] [2022-10-16 17:00:06,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:06,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:06,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:06,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:06,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:06,518 INFO L87 Difference]: Start difference. First operand 757 states and 1283 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:06,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:06,715 INFO L93 Difference]: Finished difference Result 2537 states and 4321 transitions. [2022-10-16 17:00:06,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:00:06,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-16 17:00:06,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:06,730 INFO L225 Difference]: With dead ends: 2537 [2022-10-16 17:00:06,730 INFO L226 Difference]: Without dead ends: 1783 [2022-10-16 17:00:06,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 17:00:06,751 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 603 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:00:06,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 849 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:00:06,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2022-10-16 17:00:06,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1767. [2022-10-16 17:00:06,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1767 states, 1726 states have (on average 1.6813441483198146) internal successors, (2902), 1742 states have internal predecessors, (2902), 17 states have call successors, (17), 8 states have call predecessors, (17), 8 states have return successors, (62), 16 states have call predecessors, (62), 17 states have call successors, (62) [2022-10-16 17:00:06,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2981 transitions. [2022-10-16 17:00:06,916 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2981 transitions. Word has length 50 [2022-10-16 17:00:06,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:06,916 INFO L495 AbstractCegarLoop]: Abstraction has 1767 states and 2981 transitions. [2022-10-16 17:00:06,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:06,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2981 transitions. [2022-10-16 17:00:06,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:06,919 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:06,919 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, 1, 1, 1, 1, 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 17:00:06,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 17:00:06,924 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:00:06,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:06,926 INFO L85 PathProgramCache]: Analyzing trace with hash -957301633, now seen corresponding path program 1 times [2022-10-16 17:00:06,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:06,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956581156] [2022-10-16 17:00:06,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:06,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:07,103 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 17:00:07,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:07,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956581156] [2022-10-16 17:00:07,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956581156] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:07,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:07,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:07,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686291404] [2022-10-16 17:00:07,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:07,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:07,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:07,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:07,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:07,108 INFO L87 Difference]: Start difference. First operand 1767 states and 2981 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:07,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:07,475 INFO L93 Difference]: Finished difference Result 6019 states and 10199 transitions. [2022-10-16 17:00:07,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:00:07,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-16 17:00:07,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:07,502 INFO L225 Difference]: With dead ends: 6019 [2022-10-16 17:00:07,503 INFO L226 Difference]: Without dead ends: 4255 [2022-10-16 17:00:07,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 17:00:07,540 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 601 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:00:07,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 840 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:00:07,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4255 states. [2022-10-16 17:00:07,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4255 to 4239. [2022-10-16 17:00:07,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4239 states, 4174 states have (on average 1.6420699568758985) internal successors, (6854), 4190 states have internal predecessors, (6854), 33 states have call successors, (33), 16 states have call predecessors, (33), 16 states have return successors, (178), 32 states have call predecessors, (178), 33 states have call successors, (178) [2022-10-16 17:00:07,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4239 states to 4239 states and 7065 transitions. [2022-10-16 17:00:07,819 INFO L78 Accepts]: Start accepts. Automaton has 4239 states and 7065 transitions. Word has length 50 [2022-10-16 17:00:07,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:07,819 INFO L495 AbstractCegarLoop]: Abstraction has 4239 states and 7065 transitions. [2022-10-16 17:00:07,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:07,820 INFO L276 IsEmpty]: Start isEmpty. Operand 4239 states and 7065 transitions. [2022-10-16 17:00:07,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:07,822 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:07,822 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, 1, 1, 1, 1, 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 17:00:07,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 17:00:07,823 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:00:07,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:07,823 INFO L85 PathProgramCache]: Analyzing trace with hash -934669379, now seen corresponding path program 1 times [2022-10-16 17:00:07,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:07,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070311146] [2022-10-16 17:00:07,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:07,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:07,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:07,994 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 17:00:07,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:07,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070311146] [2022-10-16 17:00:07,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070311146] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:07,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:07,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:07,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376244682] [2022-10-16 17:00:07,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:07,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:07,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:07,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:07,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:07,999 INFO L87 Difference]: Start difference. First operand 4239 states and 7065 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:08,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:08,627 INFO L93 Difference]: Finished difference Result 14591 states and 24451 transitions. [2022-10-16 17:00:08,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:00:08,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-16 17:00:08,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:08,688 INFO L225 Difference]: With dead ends: 14591 [2022-10-16 17:00:08,689 INFO L226 Difference]: Without dead ends: 10355 [2022-10-16 17:00:08,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 17:00:08,783 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 599 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:00:08,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 831 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:00:08,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10355 states. [2022-10-16 17:00:09,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10355 to 10339. [2022-10-16 17:00:09,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10339 states, 10226 states have (on average 1.6023860747115197) internal successors, (16386), 10242 states have internal predecessors, (16386), 65 states have call successors, (65), 32 states have call predecessors, (65), 32 states have return successors, (518), 64 states have call predecessors, (518), 65 states have call successors, (518) [2022-10-16 17:00:09,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10339 states to 10339 states and 16969 transitions. [2022-10-16 17:00:09,560 INFO L78 Accepts]: Start accepts. Automaton has 10339 states and 16969 transitions. Word has length 50 [2022-10-16 17:00:09,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:09,561 INFO L495 AbstractCegarLoop]: Abstraction has 10339 states and 16969 transitions. [2022-10-16 17:00:09,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:09,561 INFO L276 IsEmpty]: Start isEmpty. Operand 10339 states and 16969 transitions. [2022-10-16 17:00:09,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:09,565 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:09,565 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, 1, 1, 1, 1, 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 17:00:09,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 17:00:09,565 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:00:09,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:09,566 INFO L85 PathProgramCache]: Analyzing trace with hash 451534015, now seen corresponding path program 1 times [2022-10-16 17:00:09,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:09,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149673097] [2022-10-16 17:00:09,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:09,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:09,668 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 17:00:09,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:09,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149673097] [2022-10-16 17:00:09,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149673097] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:09,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:09,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:09,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387736569] [2022-10-16 17:00:09,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:09,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:09,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:09,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:09,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:09,671 INFO L87 Difference]: Start difference. First operand 10339 states and 16969 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:11,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:11,406 INFO L93 Difference]: Finished difference Result 35743 states and 59099 transitions. [2022-10-16 17:00:11,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:00:11,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-16 17:00:11,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:11,556 INFO L225 Difference]: With dead ends: 35743 [2022-10-16 17:00:11,556 INFO L226 Difference]: Without dead ends: 25407 [2022-10-16 17:00:11,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 17:00:11,824 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 597 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:00:11,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 820 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:00:11,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25407 states. [2022-10-16 17:00:13,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25407 to 25391. [2022-10-16 17:00:13,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25391 states, 25182 states have (on average 1.561353347629259) internal successors, (39318), 25198 states have internal predecessors, (39318), 129 states have call successors, (129), 64 states have call predecessors, (129), 64 states have return successors, (1522), 128 states have call predecessors, (1522), 129 states have call successors, (1522) [2022-10-16 17:00:13,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25391 states to 25391 states and 40969 transitions. [2022-10-16 17:00:13,999 INFO L78 Accepts]: Start accepts. Automaton has 25391 states and 40969 transitions. Word has length 50 [2022-10-16 17:00:13,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:14,000 INFO L495 AbstractCegarLoop]: Abstraction has 25391 states and 40969 transitions. [2022-10-16 17:00:14,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:14,001 INFO L276 IsEmpty]: Start isEmpty. Operand 25391 states and 40969 transitions. [2022-10-16 17:00:14,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:14,007 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:14,007 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, 1, 1, 1, 1, 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 17:00:14,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 17:00:14,008 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:00:14,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:14,008 INFO L85 PathProgramCache]: Analyzing trace with hash -57939075, now seen corresponding path program 1 times [2022-10-16 17:00:14,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:14,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20857648] [2022-10-16 17:00:14,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:14,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:14,217 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 17:00:14,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:14,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20857648] [2022-10-16 17:00:14,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20857648] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:14,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:14,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:14,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718304731] [2022-10-16 17:00:14,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:14,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:14,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:14,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:14,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:14,222 INFO L87 Difference]: Start difference. First operand 25391 states and 40969 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:18,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:18,104 INFO L93 Difference]: Finished difference Result 87575 states and 142699 transitions. [2022-10-16 17:00:18,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:00:18,105 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-16 17:00:18,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:18,343 INFO L225 Difference]: With dead ends: 87575 [2022-10-16 17:00:18,343 INFO L226 Difference]: Without dead ends: 62187 [2022-10-16 17:00:19,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 17:00:19,382 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 595 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:00:19,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 813 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:00:19,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62187 states. [2022-10-16 17:00:21,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62187 to 62171. [2022-10-16 17:00:22,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62171 states, 61770 states have (on average 1.5164966812368463) internal successors, (93674), 61786 states have internal predecessors, (93674), 257 states have call successors, (257), 128 states have call predecessors, (257), 128 states have return successors, (4502), 256 states have call predecessors, (4502), 257 states have call successors, (4502) [2022-10-16 17:00:24,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62171 states to 62171 states and 98433 transitions. [2022-10-16 17:00:24,532 INFO L78 Accepts]: Start accepts. Automaton has 62171 states and 98433 transitions. Word has length 50 [2022-10-16 17:00:24,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:24,533 INFO L495 AbstractCegarLoop]: Abstraction has 62171 states and 98433 transitions. [2022-10-16 17:00:24,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:24,533 INFO L276 IsEmpty]: Start isEmpty. Operand 62171 states and 98433 transitions. [2022-10-16 17:00:24,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:24,543 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:24,543 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, 1, 1, 1, 1, 1, 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 17:00:24,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 17:00:24,544 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:00:24,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:24,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1865288959, now seen corresponding path program 1 times [2022-10-16 17:00:24,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:24,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154965388] [2022-10-16 17:00:24,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:24,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:24,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:24,639 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 17:00:24,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:24,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154965388] [2022-10-16 17:00:24,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154965388] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:24,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:24,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:24,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070709331] [2022-10-16 17:00:24,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:24,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:24,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:24,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:24,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:24,642 INFO L87 Difference]: Start difference. First operand 62171 states and 98433 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:35,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:35,776 INFO L93 Difference]: Finished difference Result 206407 states and 328571 transitions. [2022-10-16 17:00:35,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:00:35,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-16 17:00:35,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:36,746 INFO L225 Difference]: With dead ends: 206407 [2022-10-16 17:00:36,747 INFO L226 Difference]: Without dead ends: 144239 [2022-10-16 17:00:38,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 17:00:38,978 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 583 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:00:38,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 797 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:00:39,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144239 states. [2022-10-16 17:00:44,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144239 to 144223. [2022-10-16 17:00:44,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144223 states, 143438 states have (on average 1.4412777646090995) internal successors, (206734), 143454 states have internal predecessors, (206734), 513 states have call successors, (513), 256 states have call predecessors, (513), 256 states have return successors, (13378), 512 states have call predecessors, (13378), 513 states have call successors, (13378) [2022-10-16 17:00:50,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144223 states to 144223 states and 220625 transitions. [2022-10-16 17:00:50,697 INFO L78 Accepts]: Start accepts. Automaton has 144223 states and 220625 transitions. Word has length 50 [2022-10-16 17:00:50,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:50,698 INFO L495 AbstractCegarLoop]: Abstraction has 144223 states and 220625 transitions. [2022-10-16 17:00:50,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:00:50,699 INFO L276 IsEmpty]: Start isEmpty. Operand 144223 states and 220625 transitions. [2022-10-16 17:00:50,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:50,733 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:50,734 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, 1, 1, 1, 1, 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 17:00:50,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 17:00:50,734 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [start_simulationErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, start_simulationErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:00:50,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:50,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1927328573, now seen corresponding path program 1 times [2022-10-16 17:00:50,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:50,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268036513] [2022-10-16 17:00:50,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:50,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:50,825 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 17:00:50,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:50,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268036513] [2022-10-16 17:00:50,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268036513] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:50,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:50,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:50,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364833300] [2022-10-16 17:00:50,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:50,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:50,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:50,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:50,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:50,829 INFO L87 Difference]: Start difference. First operand 144223 states and 220625 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:01:34,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:01:34,181 INFO L93 Difference]: Finished difference Result 433175 states and 702259 transitions. [2022-10-16 17:01:34,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:01:34,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-16 17:01:34,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:01:35,144 INFO L225 Difference]: With dead ends: 433175 [2022-10-16 17:01:35,144 INFO L226 Difference]: Without dead ends: 288955 [2022-10-16 17:01:42,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 17:01:42,159 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 582 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:01:42,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 781 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:01:42,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288955 states. [2022-10-16 17:02:00,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288955 to 286023. [2022-10-16 17:02:01,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286023 states, 284470 states have (on average 1.4320596196435476) internal successors, (407378), 284486 states have internal predecessors, (407378), 1025 states have call successors, (1025), 512 states have call predecessors, (1025), 512 states have return successors, (39878), 1024 states have call predecessors, (39878), 1025 states have call successors, (39878)