/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1032d.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 00:04:23,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 00:04:23,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 00:04:23,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-03-31 00:04:23,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 00:04:23,372 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 00:04:23,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 00:04:23,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 00:04:23,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 00:04:23,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 00:04:23,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 00:04:23,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 00:04:23,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 00:04:23,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 00:04:23,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 00:04:23,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 00:04:23,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-31 00:04:23,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 00:04:23,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 00:04:23,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 00:04:23,410 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-31 00:04:23,443 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 00:04:23,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 00:04:23,443 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 00:04:23,444 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 00:04:23,445 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 00:04:23,445 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 00:04:23,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 00:04:23,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 00:04:23,446 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 00:04:23,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 00:04:23,447 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 00:04:23,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 00:04:23,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 00:04:23,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 00:04:23,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 00:04:23,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 00:04:23,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 00:04:23,448 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 00:04:23,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 00:04:23,448 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 00:04:23,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 00:04:23,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 00:04:23,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 00:04:23,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 00:04:23,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:04:23,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 00:04:23,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 00:04:23,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 00:04:23,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 00:04:23,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 00:04:23,450 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 00:04:23,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 00:04:23,450 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 00:04:23,450 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 00:04:23,450 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 00:04:23,450 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 00:04:23,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 00:04:23,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 00:04:23,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 00:04:23,719 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 00:04:23,721 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 00:04:23,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1032d.c [2023-03-31 00:04:24,953 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 00:04:25,163 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 00:04:25,164 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1032d.c [2023-03-31 00:04:25,169 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/721788fea/f168594e4af741508836efb31de56e9f/FLAG91ef41113 [2023-03-31 00:04:25,191 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/721788fea/f168594e4af741508836efb31de56e9f [2023-03-31 00:04:25,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 00:04:25,195 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 00:04:25,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 00:04:25,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 00:04:25,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 00:04:25,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:04:25" (1/1) ... [2023-03-31 00:04:25,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64292f04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:25, skipping insertion in model container [2023-03-31 00:04:25,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:04:25" (1/1) ... [2023-03-31 00:04:25,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 00:04:25,231 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 00:04:25,366 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1032d.c[2356,2369] [2023-03-31 00:04:25,372 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:04:25,382 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 00:04:25,415 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1032d.c[2356,2369] [2023-03-31 00:04:25,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:04:25,431 INFO L208 MainTranslator]: Completed translation [2023-03-31 00:04:25,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:25 WrapperNode [2023-03-31 00:04:25,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 00:04:25,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 00:04:25,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 00:04:25,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 00:04:25,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:25" (1/1) ... [2023-03-31 00:04:25,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:25" (1/1) ... [2023-03-31 00:04:25,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:25" (1/1) ... [2023-03-31 00:04:25,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:25" (1/1) ... [2023-03-31 00:04:25,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:25" (1/1) ... [2023-03-31 00:04:25,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:25" (1/1) ... [2023-03-31 00:04:25,479 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:25" (1/1) ... [2023-03-31 00:04:25,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:25" (1/1) ... [2023-03-31 00:04:25,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 00:04:25,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 00:04:25,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 00:04:25,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 00:04:25,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:25" (1/1) ... [2023-03-31 00:04:25,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:04:25,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:04:25,513 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) [2023-03-31 00:04:25,521 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 [2023-03-31 00:04:25,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 00:04:25,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 00:04:25,544 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 00:04:25,545 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2023-03-31 00:04:25,545 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2023-03-31 00:04:25,545 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 00:04:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 00:04:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 00:04:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 00:04:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 00:04:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2023-03-31 00:04:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-31 00:04:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-03-31 00:04:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 00:04:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 00:04:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 00:04:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-03-31 00:04:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2023-03-31 00:04:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 00:04:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 00:04:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 00:04:25,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 00:04:25,615 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 00:04:25,617 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 00:04:26,009 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 00:04:26,015 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 00:04:26,016 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-03-31 00:04:26,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:04:26 BoogieIcfgContainer [2023-03-31 00:04:26,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 00:04:26,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 00:04:26,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 00:04:26,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 00:04:26,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 12:04:25" (1/3) ... [2023-03-31 00:04:26,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717e7788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:04:26, skipping insertion in model container [2023-03-31 00:04:26,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:25" (2/3) ... [2023-03-31 00:04:26,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717e7788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:04:26, skipping insertion in model container [2023-03-31 00:04:26,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:04:26" (3/3) ... [2023-03-31 00:04:26,033 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032d.c [2023-03-31 00:04:26,051 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 00:04:26,052 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 00:04:26,085 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 00:04:26,089 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=PETRI_NET, 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;@5545385f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 00:04:26,090 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 00:04:26,100 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 63 states have (on average 1.6031746031746033) internal successors, (101), 64 states have internal predecessors, (101), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-03-31 00:04:26,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-03-31 00:04:26,106 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:04:26,107 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] [2023-03-31 00:04:26,107 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:04:26,111 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:04:26,111 INFO L85 PathProgramCache]: Analyzing trace with hash 315502425, now seen corresponding path program 1 times [2023-03-31 00:04:26,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:04:26,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890173759] [2023-03-31 00:04:26,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:04:26,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:04:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:26,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:04:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:26,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:04:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:26,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-03-31 00:04:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:26,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:04:26,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:04:26,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890173759] [2023-03-31 00:04:26,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890173759] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:04:26,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:04:26,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-31 00:04:26,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947592950] [2023-03-31 00:04:26,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:04:26,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 00:04:26,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:04:26,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 00:04:26,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-03-31 00:04:26,398 INFO L87 Difference]: Start difference. First operand has 73 states, 63 states have (on average 1.6031746031746033) internal successors, (101), 64 states have internal predecessors, (101), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-03-31 00:04:26,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:04:26,658 INFO L93 Difference]: Finished difference Result 138 states and 211 transitions. [2023-03-31 00:04:26,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 00:04:26,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2023-03-31 00:04:26,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:04:26,670 INFO L225 Difference]: With dead ends: 138 [2023-03-31 00:04:26,670 INFO L226 Difference]: Without dead ends: 69 [2023-03-31 00:04:26,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-03-31 00:04:26,675 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 96 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 00:04:26,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 7 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 00:04:26,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-03-31 00:04:26,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-03-31 00:04:26,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 61 states have (on average 1.4754098360655739) internal successors, (90), 61 states have internal predecessors, (90), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-03-31 00:04:26,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 97 transitions. [2023-03-31 00:04:26,703 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 97 transitions. Word has length 31 [2023-03-31 00:04:26,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:04:26,703 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 97 transitions. [2023-03-31 00:04:26,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-03-31 00:04:26,703 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 97 transitions. [2023-03-31 00:04:26,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-03-31 00:04:26,704 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:04:26,704 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] [2023-03-31 00:04:26,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 00:04:26,705 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:04:26,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:04:26,705 INFO L85 PathProgramCache]: Analyzing trace with hash -249586885, now seen corresponding path program 1 times [2023-03-31 00:04:26,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:04:26,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785569154] [2023-03-31 00:04:26,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:04:26,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:04:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:26,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:04:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:26,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:04:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:26,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:04:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:26,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:04:26,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:04:26,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785569154] [2023-03-31 00:04:26,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785569154] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:04:26,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:04:26,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-31 00:04:26,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869191256] [2023-03-31 00:04:26,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:04:26,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 00:04:26,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:04:26,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 00:04:26,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 00:04:26,996 INFO L87 Difference]: Start difference. First operand 69 states and 97 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-03-31 00:04:27,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:04:27,337 INFO L93 Difference]: Finished difference Result 132 states and 186 transitions. [2023-03-31 00:04:27,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 00:04:27,339 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2023-03-31 00:04:27,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:04:27,353 INFO L225 Difference]: With dead ends: 132 [2023-03-31 00:04:27,354 INFO L226 Difference]: Without dead ends: 79 [2023-03-31 00:04:27,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-03-31 00:04:27,356 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 110 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 00:04:27,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 7 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 00:04:27,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-03-31 00:04:27,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 73. [2023-03-31 00:04:27,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 65 states have (on average 1.4461538461538461) internal successors, (94), 65 states have internal predecessors, (94), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-03-31 00:04:27,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2023-03-31 00:04:27,368 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 33 [2023-03-31 00:04:27,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:04:27,369 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2023-03-31 00:04:27,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-03-31 00:04:27,369 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2023-03-31 00:04:27,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-03-31 00:04:27,370 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:04:27,370 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] [2023-03-31 00:04:27,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 00:04:27,370 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:04:27,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:04:27,371 INFO L85 PathProgramCache]: Analyzing trace with hash 790495723, now seen corresponding path program 1 times [2023-03-31 00:04:27,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:04:27,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998874326] [2023-03-31 00:04:27,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:04:27,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:04:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:27,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:04:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:27,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:04:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:27,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 00:04:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:27,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:04:27,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:04:27,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998874326] [2023-03-31 00:04:27,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998874326] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:04:27,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:04:27,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 00:04:27,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651961454] [2023-03-31 00:04:27,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:04:27,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 00:04:27,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:04:27,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 00:04:27,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-03-31 00:04:27,870 INFO L87 Difference]: Start difference. First operand 73 states and 101 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-03-31 00:04:28,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:04:28,219 INFO L93 Difference]: Finished difference Result 92 states and 125 transitions. [2023-03-31 00:04:28,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 00:04:28,220 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2023-03-31 00:04:28,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:04:28,225 INFO L225 Difference]: With dead ends: 92 [2023-03-31 00:04:28,225 INFO L226 Difference]: Without dead ends: 82 [2023-03-31 00:04:28,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-03-31 00:04:28,232 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 110 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 00:04:28,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 9 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 00:04:28,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-03-31 00:04:28,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2023-03-31 00:04:28,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 70 states have (on average 1.4285714285714286) internal successors, (100), 70 states have internal predecessors, (100), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-03-31 00:04:28,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 107 transitions. [2023-03-31 00:04:28,246 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 107 transitions. Word has length 34 [2023-03-31 00:04:28,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:04:28,246 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 107 transitions. [2023-03-31 00:04:28,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-03-31 00:04:28,247 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 107 transitions. [2023-03-31 00:04:28,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-03-31 00:04:28,248 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:04:28,248 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] [2023-03-31 00:04:28,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 00:04:28,248 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:04:28,250 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:04:28,250 INFO L85 PathProgramCache]: Analyzing trace with hash 250268475, now seen corresponding path program 1 times [2023-03-31 00:04:28,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:04:28,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67862704] [2023-03-31 00:04:28,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:04:28,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:04:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:28,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:04:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:28,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:04:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:28,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 00:04:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:28,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:04:28,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:04:28,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67862704] [2023-03-31 00:04:28,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67862704] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:04:28,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:04:28,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 00:04:28,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952316542] [2023-03-31 00:04:28,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:04:28,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 00:04:28,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:04:28,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 00:04:28,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-03-31 00:04:28,902 INFO L87 Difference]: Start difference. First operand 78 states and 107 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-03-31 00:04:29,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:04:29,436 INFO L93 Difference]: Finished difference Result 86 states and 114 transitions. [2023-03-31 00:04:29,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-03-31 00:04:29,436 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2023-03-31 00:04:29,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:04:29,437 INFO L225 Difference]: With dead ends: 86 [2023-03-31 00:04:29,437 INFO L226 Difference]: Without dead ends: 76 [2023-03-31 00:04:29,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2023-03-31 00:04:29,439 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 110 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-03-31 00:04:29,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 15 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-03-31 00:04:29,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-03-31 00:04:29,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 75. [2023-03-31 00:04:29,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 67 states have (on average 1.4328358208955223) internal successors, (96), 67 states have internal predecessors, (96), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-03-31 00:04:29,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 103 transitions. [2023-03-31 00:04:29,453 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 103 transitions. Word has length 35 [2023-03-31 00:04:29,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:04:29,453 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 103 transitions. [2023-03-31 00:04:29,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-03-31 00:04:29,454 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 103 transitions. [2023-03-31 00:04:29,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-03-31 00:04:29,455 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:04:29,455 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] [2023-03-31 00:04:29,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 00:04:29,456 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:04:29,456 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:04:29,456 INFO L85 PathProgramCache]: Analyzing trace with hash 750416467, now seen corresponding path program 1 times [2023-03-31 00:04:29,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:04:29,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866360191] [2023-03-31 00:04:29,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:04:29,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:04:29,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:29,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:04:29,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:29,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:04:29,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:29,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 00:04:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:29,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:04:29,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:04:29,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866360191] [2023-03-31 00:04:29,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866360191] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:04:29,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:04:29,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 00:04:29,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127334010] [2023-03-31 00:04:29,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:04:29,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 00:04:29,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:04:29,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 00:04:29,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-03-31 00:04:29,791 INFO L87 Difference]: Start difference. First operand 75 states and 103 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-03-31 00:04:30,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:04:30,128 INFO L93 Difference]: Finished difference Result 82 states and 109 transitions. [2023-03-31 00:04:30,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 00:04:30,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2023-03-31 00:04:30,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:04:30,131 INFO L225 Difference]: With dead ends: 82 [2023-03-31 00:04:30,131 INFO L226 Difference]: Without dead ends: 75 [2023-03-31 00:04:30,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-03-31 00:04:30,136 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 97 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 00:04:30,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 9 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 00:04:30,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-03-31 00:04:30,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-03-31 00:04:30,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 67 states have (on average 1.4029850746268657) internal successors, (94), 67 states have internal predecessors, (94), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-03-31 00:04:30,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 101 transitions. [2023-03-31 00:04:30,149 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 101 transitions. Word has length 35 [2023-03-31 00:04:30,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:04:30,149 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 101 transitions. [2023-03-31 00:04:30,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-03-31 00:04:30,150 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 101 transitions. [2023-03-31 00:04:30,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-03-31 00:04:30,150 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:04:30,151 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] [2023-03-31 00:04:30,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 00:04:30,151 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:04:30,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:04:30,151 INFO L85 PathProgramCache]: Analyzing trace with hash -992188461, now seen corresponding path program 1 times [2023-03-31 00:04:30,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:04:30,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973938658] [2023-03-31 00:04:30,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:04:30,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:04:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:30,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:04:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:30,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:04:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:30,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 00:04:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:30,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:04:30,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:04:30,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973938658] [2023-03-31 00:04:30,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973938658] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:04:30,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:04:30,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 00:04:30,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030655159] [2023-03-31 00:04:30,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:04:30,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 00:04:30,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:04:30,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 00:04:30,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-03-31 00:04:30,649 INFO L87 Difference]: Start difference. First operand 75 states and 101 transitions. Second operand has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-03-31 00:04:31,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:04:31,148 INFO L93 Difference]: Finished difference Result 85 states and 110 transitions. [2023-03-31 00:04:31,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-03-31 00:04:31,149 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2023-03-31 00:04:31,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:04:31,149 INFO L225 Difference]: With dead ends: 85 [2023-03-31 00:04:31,149 INFO L226 Difference]: Without dead ends: 73 [2023-03-31 00:04:31,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2023-03-31 00:04:31,151 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 110 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-03-31 00:04:31,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 15 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-03-31 00:04:31,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-03-31 00:04:31,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2023-03-31 00:04:31,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 65 states have internal predecessors, (89), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-03-31 00:04:31,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 96 transitions. [2023-03-31 00:04:31,157 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 96 transitions. Word has length 36 [2023-03-31 00:04:31,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:04:31,157 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 96 transitions. [2023-03-31 00:04:31,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-03-31 00:04:31,157 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 96 transitions. [2023-03-31 00:04:31,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-03-31 00:04:31,158 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:04:31,158 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] [2023-03-31 00:04:31,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 00:04:31,158 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:04:31,159 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:04:31,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1854649232, now seen corresponding path program 1 times [2023-03-31 00:04:31,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:04:31,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497361901] [2023-03-31 00:04:31,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:04:31,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:04:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:31,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:04:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:31,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:04:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:31,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 00:04:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:31,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:04:31,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:04:31,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497361901] [2023-03-31 00:04:31,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497361901] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:04:31,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:04:31,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 00:04:31,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957992145] [2023-03-31 00:04:31,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:04:31,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 00:04:31,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:04:31,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 00:04:31,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-03-31 00:04:31,622 INFO L87 Difference]: Start difference. First operand 73 states and 96 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-03-31 00:04:32,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:04:32,018 INFO L93 Difference]: Finished difference Result 74 states and 97 transitions. [2023-03-31 00:04:32,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 00:04:32,019 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2023-03-31 00:04:32,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:04:32,019 INFO L225 Difference]: With dead ends: 74 [2023-03-31 00:04:32,019 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 00:04:32,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2023-03-31 00:04:32,020 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 94 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 00:04:32,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 13 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 00:04:32,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 00:04:32,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 00:04:32,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-03-31 00:04:32,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 00:04:32,022 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2023-03-31 00:04:32,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:04:32,022 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 00:04:32,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-03-31 00:04:32,022 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 00:04:32,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 00:04:32,025 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 00:04:32,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 00:04:32,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-03-31 00:04:32,081 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2023-03-31 00:04:32,081 INFO L899 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2023-03-31 00:04:32,082 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 3) no Hoare annotation was computed. [2023-03-31 00:04:32,082 INFO L899 garLoopResultBuilder]: For program point L68-3(lines 68 73) no Hoare annotation was computed. [2023-03-31 00:04:32,082 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2023-03-31 00:04:32,082 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-03-31 00:04:32,082 INFO L899 garLoopResultBuilder]: For program point L77-2(line 77) no Hoare annotation was computed. [2023-03-31 00:04:32,082 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 66 78) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2023-03-31 00:04:32,082 INFO L899 garLoopResultBuilder]: For program point L75-2(line 75) no Hoare annotation was computed. [2023-03-31 00:04:32,083 INFO L899 garLoopResultBuilder]: For program point L77-4(line 77) no Hoare annotation was computed. [2023-03-31 00:04:32,083 INFO L899 garLoopResultBuilder]: For program point L75-4(line 75) no Hoare annotation was computed. [2023-03-31 00:04:32,083 INFO L899 garLoopResultBuilder]: For program point L75-6(line 75) no Hoare annotation was computed. [2023-03-31 00:04:32,083 INFO L899 garLoopResultBuilder]: For program point L75-8(line 75) no Hoare annotation was computed. [2023-03-31 00:04:32,083 INFO L899 garLoopResultBuilder]: For program point isinf_doubleFINAL(lines 66 78) no Hoare annotation was computed. [2023-03-31 00:04:32,083 INFO L899 garLoopResultBuilder]: For program point isinf_doubleEXIT(lines 66 78) no Hoare annotation was computed. [2023-03-31 00:04:32,083 INFO L899 garLoopResultBuilder]: For program point L68-1(lines 68 73) no Hoare annotation was computed. [2023-03-31 00:04:32,083 INFO L895 garLoopResultBuilder]: At program point L68-2(lines 68 73) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2023-03-31 00:04:32,083 INFO L899 garLoopResultBuilder]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 93) no Hoare annotation was computed. [2023-03-31 00:04:32,084 INFO L899 garLoopResultBuilder]: For program point L93(line 93) no Hoare annotation was computed. [2023-03-31 00:04:32,084 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 80 98) no Hoare annotation was computed. [2023-03-31 00:04:32,084 INFO L902 garLoopResultBuilder]: At program point L92(line 92) the Hoare annotation is: true [2023-03-31 00:04:32,084 INFO L899 garLoopResultBuilder]: For program point L92-1(line 92) no Hoare annotation was computed. [2023-03-31 00:04:32,084 INFO L899 garLoopResultBuilder]: For program point L92-2(lines 92 95) no Hoare annotation was computed. [2023-03-31 00:04:32,084 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 80 98) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2023-03-31 00:04:32,086 INFO L895 garLoopResultBuilder]: At program point L89(line 89) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2023-03-31 00:04:32,086 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 80 98) no Hoare annotation was computed. [2023-03-31 00:04:32,086 INFO L899 garLoopResultBuilder]: For program point L89-1(line 89) no Hoare annotation was computed. [2023-03-31 00:04:32,087 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2023-03-31 00:04:32,087 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2023-03-31 00:04:32,087 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-03-31 00:04:32,087 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 39) no Hoare annotation was computed. [2023-03-31 00:04:32,087 INFO L899 garLoopResultBuilder]: For program point round_doubleFINAL(lines 16 63) no Hoare annotation was computed. [2023-03-31 00:04:32,087 INFO L899 garLoopResultBuilder]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2023-03-31 00:04:32,088 INFO L895 garLoopResultBuilder]: At program point L19-2(lines 19 24) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2023-03-31 00:04:32,088 INFO L899 garLoopResultBuilder]: For program point L19-3(lines 16 63) no Hoare annotation was computed. [2023-03-31 00:04:32,088 INFO L899 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2023-03-31 00:04:32,088 INFO L899 garLoopResultBuilder]: For program point L36-2(line 36) no Hoare annotation was computed. [2023-03-31 00:04:32,088 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2023-03-31 00:04:32,088 INFO L899 garLoopResultBuilder]: For program point L37-2(line 37) no Hoare annotation was computed. [2023-03-31 00:04:32,088 INFO L899 garLoopResultBuilder]: For program point L37-4(line 37) no Hoare annotation was computed. [2023-03-31 00:04:32,088 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 30) no Hoare annotation was computed. [2023-03-31 00:04:32,088 INFO L899 garLoopResultBuilder]: For program point L29-2(lines 29 30) no Hoare annotation was computed. [2023-03-31 00:04:32,088 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-03-31 00:04:32,089 INFO L899 garLoopResultBuilder]: For program point L54-2(line 54) no Hoare annotation was computed. [2023-03-31 00:04:32,089 INFO L899 garLoopResultBuilder]: For program point L54-4(line 54) no Hoare annotation was computed. [2023-03-31 00:04:32,089 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-03-31 00:04:32,089 INFO L899 garLoopResultBuilder]: For program point L46-2(line 46) no Hoare annotation was computed. [2023-03-31 00:04:32,089 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 16 63) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2023-03-31 00:04:32,089 INFO L899 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2023-03-31 00:04:32,089 INFO L899 garLoopResultBuilder]: For program point L30-2(line 30) no Hoare annotation was computed. [2023-03-31 00:04:32,089 INFO L899 garLoopResultBuilder]: For program point L30-4(line 30) no Hoare annotation was computed. [2023-03-31 00:04:32,089 INFO L899 garLoopResultBuilder]: For program point L56(lines 56 61) no Hoare annotation was computed. [2023-03-31 00:04:32,089 INFO L902 garLoopResultBuilder]: At program point L56-1(lines 56 61) the Hoare annotation is: true [2023-03-31 00:04:32,089 INFO L899 garLoopResultBuilder]: For program point L56-2(lines 56 61) no Hoare annotation was computed. [2023-03-31 00:04:32,089 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2023-03-31 00:04:32,091 INFO L899 garLoopResultBuilder]: For program point L48-2(line 48) no Hoare annotation was computed. [2023-03-31 00:04:32,091 INFO L899 garLoopResultBuilder]: For program point L48-4(lines 48 49) no Hoare annotation was computed. [2023-03-31 00:04:32,091 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 55) no Hoare annotation was computed. [2023-03-31 00:04:32,091 INFO L899 garLoopResultBuilder]: For program point round_doubleEXIT(lines 16 63) no Hoare annotation was computed. [2023-03-31 00:04:32,091 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 44) no Hoare annotation was computed. [2023-03-31 00:04:32,091 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2023-03-31 00:04:32,092 INFO L899 garLoopResultBuilder]: For program point L33-2(line 33) no Hoare annotation was computed. [2023-03-31 00:04:32,092 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2023-03-31 00:04:32,092 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2023-03-31 00:04:32,092 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-03-31 00:04:32,092 INFO L899 garLoopResultBuilder]: For program point L50-2(line 50) no Hoare annotation was computed. [2023-03-31 00:04:32,092 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2023-03-31 00:04:32,092 INFO L899 garLoopResultBuilder]: For program point L34-2(line 34) no Hoare annotation was computed. [2023-03-31 00:04:32,092 INFO L899 garLoopResultBuilder]: For program point L34-4(lines 34 35) no Hoare annotation was computed. [2023-03-31 00:04:32,092 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 55) no Hoare annotation was computed. [2023-03-31 00:04:32,092 INFO L899 garLoopResultBuilder]: For program point L51(lines 51 52) no Hoare annotation was computed. [2023-03-31 00:04:32,092 INFO L899 garLoopResultBuilder]: For program point L51-2(lines 51 52) no Hoare annotation was computed. [2023-03-31 00:04:32,092 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-03-31 00:04:32,092 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2023-03-31 00:04:32,092 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-03-31 00:04:32,093 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 00:04:32,095 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:04:32,097 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 00:04:32,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 12:04:32 BoogieIcfgContainer [2023-03-31 00:04:32,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 00:04:32,116 INFO L158 Benchmark]: Toolchain (without parser) took 6920.79ms. Allocated memory was 218.1MB in the beginning and 278.9MB in the end (delta: 60.8MB). Free memory was 172.1MB in the beginning and 225.6MB in the end (delta: -53.5MB). Peak memory consumption was 7.9MB. Max. memory is 8.0GB. [2023-03-31 00:04:32,116 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 181.4MB. Free memory is still 132.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 00:04:32,116 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.47ms. Allocated memory is still 218.1MB. Free memory was 171.8MB in the beginning and 160.5MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-03-31 00:04:32,116 INFO L158 Benchmark]: Boogie Preprocessor took 50.84ms. Allocated memory is still 218.1MB. Free memory was 160.5MB in the beginning and 158.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-31 00:04:32,117 INFO L158 Benchmark]: RCFGBuilder took 534.85ms. Allocated memory is still 218.1MB. Free memory was 158.2MB in the beginning and 137.5MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-03-31 00:04:32,117 INFO L158 Benchmark]: TraceAbstraction took 6089.63ms. Allocated memory was 218.1MB in the beginning and 278.9MB in the end (delta: 60.8MB). Free memory was 136.8MB in the beginning and 225.6MB in the end (delta: -88.8MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 00:04:32,118 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 181.4MB. Free memory is still 132.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 233.47ms. Allocated memory is still 218.1MB. Free memory was 171.8MB in the beginning and 160.5MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 50.84ms. Allocated memory is still 218.1MB. Free memory was 160.5MB in the beginning and 158.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 534.85ms. Allocated memory is still 218.1MB. Free memory was 158.2MB in the beginning and 137.5MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 6089.63ms. Allocated memory was 218.1MB in the beginning and 278.9MB in the end (delta: 60.8MB). Free memory was 136.8MB in the beginning and 225.6MB in the end (delta: -88.8MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 93]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 738 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 727 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3586 IncrementalHoareTripleChecker+Invalid, 3633 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 23 mSDtfsCounter, 3586 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=3, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 15 PreInvPairs, 19 NumberOfFragments, 89 HoareAnnotationTreeSize, 15 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 240 NumberOfCodeBlocks, 240 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 233 ConstructedInterpolants, 0 QuantifiedInterpolants, 716 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: ((\old(unknown-#length-unknown) == unknown-#length-unknown && \old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown) && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && \old(\valid) == \valid - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((\old(unknown-#length-unknown) == unknown-#length-unknown && \old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown) && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && \old(\valid) == \valid RESULT: Ultimate proved your program to be correct! [2023-03-31 00:04:32,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...