/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-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 16:59:57,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 16:59:57,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 16:59:57,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 16:59:57,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 16:59:57,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 16:59:57,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 16:59:57,482 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 16:59:57,513 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 16:59:57,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 16:59:57,513 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 16:59:57,514 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 16:59:57,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 16:59:57,515 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 16:59:57,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 16:59:57,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 16:59:57,516 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 16:59:57,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 16:59:57,517 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 16:59:57,517 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 16:59:57,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 16:59:57,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 16:59:57,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 16:59:57,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 16:59:57,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 16:59:57,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 16:59:57,519 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 16:59:57,519 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 16:59:57,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 16:59:57,520 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 16:59:57,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 16:59:57,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 16:59:57,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 16:59:57,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 16:59:57,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 16:59:57,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 16:59:57,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 16:59:57,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 16:59:57,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 16:59:57,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 16:59:57,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 16:59:57,523 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 16:59:57,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 16:59:57,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 16:59:57,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 16:59:57,952 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 16:59:57,953 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 16:59:57,954 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/pipeline.cil-1.c [2022-10-16 16:59:58,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f11dbe428/378c33225f6a4ac4936493222a45dc94/FLAGc6e88b3ca [2022-10-16 16:59:58,751 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 16:59:58,752 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/pipeline.cil-1.c [2022-10-16 16:59:58,767 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f11dbe428/378c33225f6a4ac4936493222a45dc94/FLAGc6e88b3ca [2022-10-16 16:59:59,074 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f11dbe428/378c33225f6a4ac4936493222a45dc94 [2022-10-16 16:59:59,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 16:59:59,087 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 16:59:59,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 16:59:59,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 16:59:59,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 16:59:59,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:59:59" (1/1) ... [2022-10-16 16:59:59,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4896162c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:59:59, skipping insertion in model container [2022-10-16 16:59:59,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:59:59" (1/1) ... [2022-10-16 16:59:59,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 16:59:59,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 16:59:59,290 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-1.c[640,653] [2022-10-16 16:59:59,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 16:59:59,400 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 16:59:59,419 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-1.c[640,653] [2022-10-16 16:59:59,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 16:59:59,532 INFO L208 MainTranslator]: Completed translation [2022-10-16 16:59:59,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:59:59 WrapperNode [2022-10-16 16:59:59,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 16:59:59,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 16:59:59,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 16:59:59,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 16:59:59,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:59:59" (1/1) ... [2022-10-16 16:59:59,569 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:59:59" (1/1) ... [2022-10-16 16:59:59,619 INFO L138 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 438 [2022-10-16 16:59:59,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 16:59:59,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 16:59:59,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 16:59:59,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 16:59:59,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:59:59" (1/1) ... [2022-10-16 16:59:59,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:59:59" (1/1) ... [2022-10-16 16:59:59,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:59:59" (1/1) ... [2022-10-16 16:59:59,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:59:59" (1/1) ... [2022-10-16 16:59:59,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:59:59" (1/1) ... [2022-10-16 16:59:59,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:59:59" (1/1) ... [2022-10-16 16:59:59,658 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:59:59" (1/1) ... [2022-10-16 16:59:59,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:59:59" (1/1) ... [2022-10-16 16:59:59,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 16:59:59,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 16:59:59,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 16:59:59,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 16:59:59,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:59:59" (1/1) ... [2022-10-16 16:59:59,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 16:59:59,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:59:59,708 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 16:59:59,725 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 16:59:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 16:59:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 16:59:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2022-10-16 16:59:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2022-10-16 16:59:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 16:59:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 16:59:59,943 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 16:59:59,946 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:00:00,685 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:00:00,699 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:00:00,699 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 17:00:00,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:00:00 BoogieIcfgContainer [2022-10-16 17:00:00,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:00:00,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:00:00,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:00:00,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:00:00,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 04:59:59" (1/3) ... [2022-10-16 17:00:00,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53491cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:00:00, skipping insertion in model container [2022-10-16 17:00:00,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:59:59" (2/3) ... [2022-10-16 17:00:00,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53491cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:00:00, skipping insertion in model container [2022-10-16 17:00:00,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:00:00" (3/3) ... [2022-10-16 17:00:00,720 INFO L112 eAbstractionObserver]: Analyzing ICFG pipeline.cil-1.c [2022-10-16 17:00:00,745 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:00:00,746 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-10-16 17:00:00,826 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:00:00,834 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;@29ab630e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:00:00,835 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-10-16 17:00:00,841 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 17:00:00,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:00,855 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:00,856 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 17:00:00,857 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 17:00:00,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:00,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1918522241, now seen corresponding path program 1 times [2022-10-16 17:00:00,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:00,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108383536] [2022-10-16 17:00:00,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:00,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:01,487 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 17:00:01,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:01,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108383536] [2022-10-16 17:00:01,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108383536] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:01,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:01,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:01,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977737851] [2022-10-16 17:00:01,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:01,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:01,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:01,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:01,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:01,538 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 17:00:01,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:01,796 INFO L93 Difference]: Finished difference Result 540 states and 900 transitions. [2022-10-16 17:00:01,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:00:01,800 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 17:00:01,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:01,818 INFO L225 Difference]: With dead ends: 540 [2022-10-16 17:00:01,818 INFO L226 Difference]: Without dead ends: 354 [2022-10-16 17:00:01,827 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 17:00:01,832 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 17:00:01,834 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 17:00:01,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-10-16 17:00:01,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 338. [2022-10-16 17:00:01,930 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 17:00:01,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 574 transitions. [2022-10-16 17:00:01,940 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 574 transitions. Word has length 50 [2022-10-16 17:00:01,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:01,941 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 574 transitions. [2022-10-16 17:00:01,942 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 17:00:01,942 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 574 transitions. [2022-10-16 17:00:01,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:01,945 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:01,945 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 17:00:01,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:00:01,946 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 17:00:01,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:01,947 INFO L85 PathProgramCache]: Analyzing trace with hash 889162943, now seen corresponding path program 1 times [2022-10-16 17:00:01,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:01,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215801881] [2022-10-16 17:00:01,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:01,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:02,218 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 17:00:02,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:02,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215801881] [2022-10-16 17:00:02,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215801881] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:02,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:02,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:02,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507775197] [2022-10-16 17:00:02,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:02,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:02,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:02,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:02,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:02,230 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 17:00:02,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:02,377 INFO L93 Difference]: Finished difference Result 689 states and 1151 transitions. [2022-10-16 17:00:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:00:02,378 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 17:00:02,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:02,382 INFO L225 Difference]: With dead ends: 689 [2022-10-16 17:00:02,383 INFO L226 Difference]: Without dead ends: 354 [2022-10-16 17:00:02,392 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 17:00:02,395 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 17:00:02,396 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 17:00:02,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-10-16 17:00:02,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 338. [2022-10-16 17:00:02,454 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 17:00:02,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 572 transitions. [2022-10-16 17:00:02,459 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 572 transitions. Word has length 50 [2022-10-16 17:00:02,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:02,461 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 572 transitions. [2022-10-16 17:00:02,461 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 17:00:02,462 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 572 transitions. [2022-10-16 17:00:02,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:02,474 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:02,475 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 17:00:02,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:00:02,475 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 17:00:02,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:02,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1548694465, now seen corresponding path program 1 times [2022-10-16 17:00:02,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:02,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451941758] [2022-10-16 17:00:02,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:02,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:02,685 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 17:00:02,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:02,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451941758] [2022-10-16 17:00:02,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451941758] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:02,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:02,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:02,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822484500] [2022-10-16 17:00:02,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:02,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:02,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:02,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:02,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:02,691 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 17:00:02,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:02,818 INFO L93 Difference]: Finished difference Result 689 states and 1147 transitions. [2022-10-16 17:00:02,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:00:02,818 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 17:00:02,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:02,822 INFO L225 Difference]: With dead ends: 689 [2022-10-16 17:00:02,822 INFO L226 Difference]: Without dead ends: 354 [2022-10-16 17:00:02,828 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 17:00:02,836 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 17:00:02,838 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 17:00:02,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-10-16 17:00:02,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 338. [2022-10-16 17:00:02,861 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 17:00:02,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 570 transitions. [2022-10-16 17:00:02,866 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 570 transitions. Word has length 50 [2022-10-16 17:00:02,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:02,867 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 570 transitions. [2022-10-16 17:00:02,867 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 17:00:02,868 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 570 transitions. [2022-10-16 17:00:02,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:02,870 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:02,870 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 17:00:02,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 17:00:02,871 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 17:00:02,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:02,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1154327679, now seen corresponding path program 1 times [2022-10-16 17:00:02,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:02,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441299841] [2022-10-16 17:00:02,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:02,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:03,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:00:03,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:03,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441299841] [2022-10-16 17:00:03,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441299841] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:03,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:03,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:03,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213987334] [2022-10-16 17:00:03,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:03,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:03,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:03,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:03,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:03,089 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 17:00:03,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:03,191 INFO L93 Difference]: Finished difference Result 689 states and 1143 transitions. [2022-10-16 17:00:03,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:00:03,192 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 17:00:03,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:03,195 INFO L225 Difference]: With dead ends: 689 [2022-10-16 17:00:03,195 INFO L226 Difference]: Without dead ends: 354 [2022-10-16 17:00:03,198 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 17:00:03,200 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 800 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 17:00:03,201 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 17:00:03,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-10-16 17:00:03,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 338. [2022-10-16 17:00:03,221 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 17:00:03,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 568 transitions. [2022-10-16 17:00:03,225 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 568 transitions. Word has length 50 [2022-10-16 17:00:03,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:03,226 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 568 transitions. [2022-10-16 17:00:03,226 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 17:00:03,227 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 568 transitions. [2022-10-16 17:00:03,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:03,227 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:03,228 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 17:00:03,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 17:00:03,228 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 17:00:03,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:03,229 INFO L85 PathProgramCache]: Analyzing trace with hash 310322177, now seen corresponding path program 1 times [2022-10-16 17:00:03,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:03,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881375355] [2022-10-16 17:00:03,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:03,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:03,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:03,335 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 17:00:03,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:03,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881375355] [2022-10-16 17:00:03,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881375355] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:03,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:03,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:03,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601198376] [2022-10-16 17:00:03,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:03,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:03,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:03,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:03,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:03,338 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 17:00:03,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:03,438 INFO L93 Difference]: Finished difference Result 689 states and 1139 transitions. [2022-10-16 17:00:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:00:03,439 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 17:00:03,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:03,442 INFO L225 Difference]: With dead ends: 689 [2022-10-16 17:00:03,442 INFO L226 Difference]: Without dead ends: 354 [2022-10-16 17:00:03,445 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 17:00:03,446 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 795 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 17:00:03,447 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 17:00:03,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-10-16 17:00:03,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 338. [2022-10-16 17:00:03,466 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 17:00:03,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 566 transitions. [2022-10-16 17:00:03,471 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 566 transitions. Word has length 50 [2022-10-16 17:00:03,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:03,471 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 566 transitions. [2022-10-16 17:00:03,471 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 17:00:03,471 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 566 transitions. [2022-10-16 17:00:03,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:03,472 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:03,473 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 17:00:03,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 17:00:03,473 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 17:00:03,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:03,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1933661121, now seen corresponding path program 1 times [2022-10-16 17:00:03,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:03,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605792981] [2022-10-16 17:00:03,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:03,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:03,617 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 17:00:03,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:03,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605792981] [2022-10-16 17:00:03,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605792981] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:03,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:03,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:03,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096640777] [2022-10-16 17:00:03,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:03,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:03,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:03,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:03,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:03,620 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 17:00:03,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:03,765 INFO L93 Difference]: Finished difference Result 1108 states and 1870 transitions. [2022-10-16 17:00:03,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:00:03,766 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 17:00:03,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:03,771 INFO L225 Difference]: With dead ends: 1108 [2022-10-16 17:00:03,772 INFO L226 Difference]: Without dead ends: 773 [2022-10-16 17:00:03,776 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 17:00:03,777 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 17:00:03,777 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 17:00:03,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-10-16 17:00:03,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 757. [2022-10-16 17:00:03,819 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 17:00:03,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1283 transitions. [2022-10-16 17:00:03,829 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1283 transitions. Word has length 50 [2022-10-16 17:00:03,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:03,830 INFO L495 AbstractCegarLoop]: Abstraction has 757 states and 1283 transitions. [2022-10-16 17:00:03,830 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 17:00:03,830 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1283 transitions. [2022-10-16 17:00:03,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:03,831 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:03,831 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 17:00:03,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 17:00:03,832 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 17:00:03,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:03,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1658901507, now seen corresponding path program 1 times [2022-10-16 17:00:03,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:03,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456574895] [2022-10-16 17:00:03,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:03,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:03,946 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 17:00:03,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:03,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456574895] [2022-10-16 17:00:03,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456574895] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:03,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:03,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:03,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418262393] [2022-10-16 17:00:03,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:03,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:03,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:03,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:03,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:03,949 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 17:00:04,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:04,161 INFO L93 Difference]: Finished difference Result 2537 states and 4321 transitions. [2022-10-16 17:00:04,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:00:04,162 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 17:00:04,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:04,176 INFO L225 Difference]: With dead ends: 2537 [2022-10-16 17:00:04,176 INFO L226 Difference]: Without dead ends: 1783 [2022-10-16 17:00:04,189 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 17:00:04,190 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 17:00:04,190 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 17:00:04,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2022-10-16 17:00:04,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1767. [2022-10-16 17:00:04,304 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 17:00:04,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2981 transitions. [2022-10-16 17:00:04,334 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2981 transitions. Word has length 50 [2022-10-16 17:00:04,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:04,335 INFO L495 AbstractCegarLoop]: Abstraction has 1767 states and 2981 transitions. [2022-10-16 17:00:04,335 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 17:00:04,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2981 transitions. [2022-10-16 17:00:04,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:04,337 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:04,337 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 17:00:04,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 17:00:04,337 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 17:00:04,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:04,338 INFO L85 PathProgramCache]: Analyzing trace with hash -957301633, now seen corresponding path program 1 times [2022-10-16 17:00:04,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:04,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030732464] [2022-10-16 17:00:04,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:04,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:04,469 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 17:00:04,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:04,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030732464] [2022-10-16 17:00:04,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030732464] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:04,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:04,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:04,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897833207] [2022-10-16 17:00:04,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:04,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:04,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:04,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:04,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:04,477 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 17:00:04,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:04,827 INFO L93 Difference]: Finished difference Result 6019 states and 10199 transitions. [2022-10-16 17:00:04,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:00:04,828 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 17:00:04,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:04,855 INFO L225 Difference]: With dead ends: 6019 [2022-10-16 17:00:04,855 INFO L226 Difference]: Without dead ends: 4255 [2022-10-16 17:00:04,893 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 17:00:04,894 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 17:00:04,895 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 17:00:04,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4255 states. [2022-10-16 17:00:05,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4255 to 4239. [2022-10-16 17:00:05,102 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 17:00:05,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4239 states to 4239 states and 7065 transitions. [2022-10-16 17:00:05,213 INFO L78 Accepts]: Start accepts. Automaton has 4239 states and 7065 transitions. Word has length 50 [2022-10-16 17:00:05,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:05,213 INFO L495 AbstractCegarLoop]: Abstraction has 4239 states and 7065 transitions. [2022-10-16 17:00:05,213 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 17:00:05,214 INFO L276 IsEmpty]: Start isEmpty. Operand 4239 states and 7065 transitions. [2022-10-16 17:00:05,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:05,216 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:05,216 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 17:00:05,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 17:00:05,217 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 17:00:05,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:05,217 INFO L85 PathProgramCache]: Analyzing trace with hash -934669379, now seen corresponding path program 1 times [2022-10-16 17:00:05,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:05,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110474438] [2022-10-16 17:00:05,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:05,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:05,335 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 17:00:05,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:05,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110474438] [2022-10-16 17:00:05,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110474438] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:05,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:05,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:05,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167611207] [2022-10-16 17:00:05,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:05,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:05,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:05,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:05,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:05,338 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 17:00:05,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:05,924 INFO L93 Difference]: Finished difference Result 14591 states and 24451 transitions. [2022-10-16 17:00:05,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:00:05,925 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 17:00:05,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:05,981 INFO L225 Difference]: With dead ends: 14591 [2022-10-16 17:00:05,982 INFO L226 Difference]: Without dead ends: 10355 [2022-10-16 17:00:06,110 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 17:00:06,113 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 17:00:06,114 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 17:00:06,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10355 states. [2022-10-16 17:00:06,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10355 to 10339. [2022-10-16 17:00:06,674 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 17:00:06,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10339 states to 10339 states and 16969 transitions. [2022-10-16 17:00:06,823 INFO L78 Accepts]: Start accepts. Automaton has 10339 states and 16969 transitions. Word has length 50 [2022-10-16 17:00:06,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:06,824 INFO L495 AbstractCegarLoop]: Abstraction has 10339 states and 16969 transitions. [2022-10-16 17:00:06,824 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 17:00:06,824 INFO L276 IsEmpty]: Start isEmpty. Operand 10339 states and 16969 transitions. [2022-10-16 17:00:06,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:06,827 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:06,828 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 17:00:06,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 17:00:06,828 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 17:00:06,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:06,834 INFO L85 PathProgramCache]: Analyzing trace with hash 451534015, now seen corresponding path program 1 times [2022-10-16 17:00:06,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:06,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381822377] [2022-10-16 17:00:06,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:06,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:07,042 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 17:00:07,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:07,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381822377] [2022-10-16 17:00:07,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381822377] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:07,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:07,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:07,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029848854] [2022-10-16 17:00:07,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:07,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:07,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:07,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:07,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:07,046 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 17:00:08,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:08,555 INFO L93 Difference]: Finished difference Result 35743 states and 59099 transitions. [2022-10-16 17:00:08,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:00:08,558 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 17:00:08,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:08,655 INFO L225 Difference]: With dead ends: 35743 [2022-10-16 17:00:08,655 INFO L226 Difference]: Without dead ends: 25407 [2022-10-16 17:00:08,791 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 17:00:08,792 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 17:00:08,792 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 17:00:08,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25407 states. [2022-10-16 17:00:09,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25407 to 25391. [2022-10-16 17:00:10,133 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 17:00:10,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25391 states to 25391 states and 40969 transitions. [2022-10-16 17:00:10,663 INFO L78 Accepts]: Start accepts. Automaton has 25391 states and 40969 transitions. Word has length 50 [2022-10-16 17:00:10,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:10,663 INFO L495 AbstractCegarLoop]: Abstraction has 25391 states and 40969 transitions. [2022-10-16 17:00:10,664 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 17:00:10,665 INFO L276 IsEmpty]: Start isEmpty. Operand 25391 states and 40969 transitions. [2022-10-16 17:00:10,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:10,670 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:10,670 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 17:00:10,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 17:00:10,670 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 17:00:10,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:10,671 INFO L85 PathProgramCache]: Analyzing trace with hash -57939075, now seen corresponding path program 1 times [2022-10-16 17:00:10,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:10,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064351173] [2022-10-16 17:00:10,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:10,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:10,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:00:10,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:10,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064351173] [2022-10-16 17:00:10,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064351173] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:10,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:10,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:10,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45317355] [2022-10-16 17:00:10,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:10,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:10,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:10,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:10,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:10,771 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 17:00:14,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:14,876 INFO L93 Difference]: Finished difference Result 87575 states and 142699 transitions. [2022-10-16 17:00:14,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:00:14,877 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 17:00:14,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:15,359 INFO L225 Difference]: With dead ends: 87575 [2022-10-16 17:00:15,359 INFO L226 Difference]: Without dead ends: 62187 [2022-10-16 17:00:16,118 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 17:00:16,119 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 17:00:16,120 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 17:00:16,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62187 states. [2022-10-16 17:00:18,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62187 to 62171. [2022-10-16 17:00:18,706 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 17:00:21,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62171 states to 62171 states and 98433 transitions. [2022-10-16 17:00:21,365 INFO L78 Accepts]: Start accepts. Automaton has 62171 states and 98433 transitions. Word has length 50 [2022-10-16 17:00:21,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:21,366 INFO L495 AbstractCegarLoop]: Abstraction has 62171 states and 98433 transitions. [2022-10-16 17:00:21,369 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 17:00:21,369 INFO L276 IsEmpty]: Start isEmpty. Operand 62171 states and 98433 transitions. [2022-10-16 17:00:21,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:21,379 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:21,379 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 17:00:21,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 17:00:21,380 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 17:00:21,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:21,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1865288959, now seen corresponding path program 1 times [2022-10-16 17:00:21,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:21,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189233403] [2022-10-16 17:00:21,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:21,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:21,490 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 17:00:21,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:21,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189233403] [2022-10-16 17:00:21,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189233403] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:21,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:21,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:21,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481981993] [2022-10-16 17:00:21,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:21,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:21,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:21,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:21,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:21,494 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 17:00:32,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:00:32,043 INFO L93 Difference]: Finished difference Result 206407 states and 328571 transitions. [2022-10-16 17:00:32,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:00:32,046 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 17:00:32,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:00:33,091 INFO L225 Difference]: With dead ends: 206407 [2022-10-16 17:00:33,091 INFO L226 Difference]: Without dead ends: 144239 [2022-10-16 17:00:34,711 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 17:00:34,712 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 17:00:34,712 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 17:00:34,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144239 states. [2022-10-16 17:00:40,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144239 to 144223. [2022-10-16 17:00:40,875 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 17:00:46,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144223 states to 144223 states and 220625 transitions. [2022-10-16 17:00:46,743 INFO L78 Accepts]: Start accepts. Automaton has 144223 states and 220625 transitions. Word has length 50 [2022-10-16 17:00:46,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:00:46,743 INFO L495 AbstractCegarLoop]: Abstraction has 144223 states and 220625 transitions. [2022-10-16 17:00:46,744 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 17:00:46,745 INFO L276 IsEmpty]: Start isEmpty. Operand 144223 states and 220625 transitions. [2022-10-16 17:00:46,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:00:46,766 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:00:46,766 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 17:00:46,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 17:00:46,767 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 17:00:46,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:00:46,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1927328573, now seen corresponding path program 1 times [2022-10-16 17:00:46,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:00:46,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469971481] [2022-10-16 17:00:46,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:00:46,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:00:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:00:46,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:00:46,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:00:46,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469971481] [2022-10-16 17:00:46,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469971481] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:00:46,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:00:46,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:00:46,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27624463] [2022-10-16 17:00:46,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:00:46,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:00:46,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:00:46,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:00:46,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:00:46,903 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 17:01:29,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:01:29,199 INFO L93 Difference]: Finished difference Result 433175 states and 702259 transitions. [2022-10-16 17:01:29,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:01:29,202 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 17:01:29,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:01:30,455 INFO L225 Difference]: With dead ends: 433175 [2022-10-16 17:01:30,455 INFO L226 Difference]: Without dead ends: 288955 [2022-10-16 17:01:37,025 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 17:01:37,026 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 17:01:37,026 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 17:01:37,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288955 states.