/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 01:19:01,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 01:19:01,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 01:19:01,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 01:19:01,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 01:19:01,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 01:19:01,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 01:19:02,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 01:19:02,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 01:19:02,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 01:19:02,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 01:19:02,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 01:19:02,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 01:19:02,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 01:19:02,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 01:19:02,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 01:19:02,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 01:19:02,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 01:19:02,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 01:19:02,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 01:19:02,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 01:19:02,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 01:19:02,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 01:19:02,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 01:19:02,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 01:19:02,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 01:19:02,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 01:19:02,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 01:19:02,080 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-16 01:19:02,138 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 01:19:02,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 01:19:02,139 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 01:19:02,139 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 01:19:02,142 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 01:19:02,142 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 01:19:02,145 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 01:19:02,146 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 01:19:02,146 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 01:19:02,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 01:19:02,147 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 01:19:02,148 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 01:19:02,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 01:19:02,148 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 01:19:02,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 01:19:02,149 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 01:19:02,149 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 01:19:02,149 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 01:19:02,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 01:19:02,149 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 01:19:02,150 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 01:19:02,150 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 01:19:02,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 01:19:02,150 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 01:19:02,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 01:19:02,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 01:19:02,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 01:19:02,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 01:19:02,151 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 01:19:02,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 01:19:02,152 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 01:19:02,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 01:19:02,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 01:19:02,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 01:19:02,594 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 01:19:02,595 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 01:19:02,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2022-10-16 01:19:02,682 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3743daba/a6ad17d256b744e3aa3563b347fbd4b5/FLAGb205ed588 [2022-10-16 01:19:03,412 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 01:19:03,413 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2022-10-16 01:19:03,421 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3743daba/a6ad17d256b744e3aa3563b347fbd4b5/FLAGb205ed588 [2022-10-16 01:19:03,757 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3743daba/a6ad17d256b744e3aa3563b347fbd4b5 [2022-10-16 01:19:03,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 01:19:03,767 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 01:19:03,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 01:19:03,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 01:19:03,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 01:19:03,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:19:03" (1/1) ... [2022-10-16 01:19:03,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@452c0728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:19:03, skipping insertion in model container [2022-10-16 01:19:03,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:19:03" (1/1) ... [2022-10-16 01:19:03,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 01:19:03,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 01:19:04,019 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c[1957,1970] [2022-10-16 01:19:04,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 01:19:04,033 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 01:19:04,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c[1957,1970] [2022-10-16 01:19:04,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 01:19:04,083 INFO L208 MainTranslator]: Completed translation [2022-10-16 01:19:04,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:19:04 WrapperNode [2022-10-16 01:19:04,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 01:19:04,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 01:19:04,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 01:19:04,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 01:19:04,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:19:04" (1/1) ... [2022-10-16 01:19:04,106 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:19:04" (1/1) ... [2022-10-16 01:19:04,132 INFO L138 Inliner]: procedures = 19, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2022-10-16 01:19:04,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 01:19:04,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 01:19:04,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 01:19:04,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 01:19:04,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:19:04" (1/1) ... [2022-10-16 01:19:04,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:19:04" (1/1) ... [2022-10-16 01:19:04,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:19:04" (1/1) ... [2022-10-16 01:19:04,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:19:04" (1/1) ... [2022-10-16 01:19:04,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:19:04" (1/1) ... [2022-10-16 01:19:04,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:19:04" (1/1) ... [2022-10-16 01:19:04,177 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:19:04" (1/1) ... [2022-10-16 01:19:04,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:19:04" (1/1) ... [2022-10-16 01:19:04,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 01:19:04,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 01:19:04,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 01:19:04,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 01:19:04,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:19:04" (1/1) ... [2022-10-16 01:19:04,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 01:19:04,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 01:19:04,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 01:19:04,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 01:19:04,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 01:19:04,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 01:19:04,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 01:19:04,328 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2022-10-16 01:19:04,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2022-10-16 01:19:04,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-10-16 01:19:04,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 01:19:04,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 01:19:04,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 01:19:04,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 01:19:04,486 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 01:19:04,490 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 01:19:04,912 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 01:19:04,925 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 01:19:04,926 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 01:19:04,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:19:04 BoogieIcfgContainer [2022-10-16 01:19:04,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 01:19:04,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 01:19:04,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 01:19:04,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 01:19:04,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:19:03" (1/3) ... [2022-10-16 01:19:04,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb3825b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:19:04, skipping insertion in model container [2022-10-16 01:19:04,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:19:04" (2/3) ... [2022-10-16 01:19:04,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb3825b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:19:04, skipping insertion in model container [2022-10-16 01:19:04,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:19:04" (3/3) ... [2022-10-16 01:19:04,940 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232a.c [2022-10-16 01:19:04,967 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 01:19:04,968 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-16 01:19:05,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 01:19:05,043 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@3654051e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 01:19:05,043 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-16 01:19:05,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 34 states have (on average 1.7352941176470589) internal successors, (59), 46 states have internal predecessors, (59), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 01:19:05,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 01:19:05,059 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 01:19:05,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 01:19:05,061 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [__fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-10-16 01:19:05,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 01:19:05,068 INFO L85 PathProgramCache]: Analyzing trace with hash 2104168251, now seen corresponding path program 1 times [2022-10-16 01:19:05,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 01:19:05,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626531678] [2022-10-16 01:19:05,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 01:19:05,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 01:19:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 01:19:05,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 01:19:05,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 01:19:05,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626531678] [2022-10-16 01:19:05,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626531678] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 01:19:05,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 01:19:05,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 01:19:05,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521742276] [2022-10-16 01:19:05,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 01:19:05,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 01:19:05,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 01:19:05,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 01:19:05,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 01:19:05,409 INFO L87 Difference]: Start difference. First operand has 50 states, 34 states have (on average 1.7352941176470589) internal successors, (59), 46 states have internal predecessors, (59), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 01:19:05,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 01:19:05,483 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2022-10-16 01:19:05,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 01:19:05,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 01:19:05,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 01:19:05,504 INFO L225 Difference]: With dead ends: 47 [2022-10-16 01:19:05,504 INFO L226 Difference]: Without dead ends: 45 [2022-10-16 01:19:05,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 01:19:05,513 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 7 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 01:19:05,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 84 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 01:19:05,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-16 01:19:05,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-10-16 01:19:05,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 41 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 01:19:05,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 53 transitions. [2022-10-16 01:19:05,580 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 53 transitions. Word has length 6 [2022-10-16 01:19:05,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 01:19:05,581 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 53 transitions. [2022-10-16 01:19:05,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 01:19:05,582 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 53 transitions. [2022-10-16 01:19:05,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 01:19:05,582 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 01:19:05,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 01:19:05,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 01:19:05,584 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [__fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-10-16 01:19:05,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 01:19:05,584 INFO L85 PathProgramCache]: Analyzing trace with hash 2104168252, now seen corresponding path program 1 times [2022-10-16 01:19:05,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 01:19:05,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532591008] [2022-10-16 01:19:05,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 01:19:05,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 01:19:05,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 01:19:05,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 01:19:05,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 01:19:05,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532591008] [2022-10-16 01:19:05,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532591008] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 01:19:05,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 01:19:05,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 01:19:05,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030015734] [2022-10-16 01:19:05,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 01:19:05,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 01:19:05,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 01:19:05,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 01:19:05,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 01:19:05,832 INFO L87 Difference]: Start difference. First operand 45 states and 53 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 01:19:05,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 01:19:05,863 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2022-10-16 01:19:05,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 01:19:05,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 01:19:05,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 01:19:05,865 INFO L225 Difference]: With dead ends: 42 [2022-10-16 01:19:05,866 INFO L226 Difference]: Without dead ends: 42 [2022-10-16 01:19:05,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 01:19:05,868 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 4 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 01:19:05,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 84 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 01:19:05,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-16 01:19:05,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-10-16 01:19:05,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 33 states have (on average 1.393939393939394) internal successors, (46), 38 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 01:19:05,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2022-10-16 01:19:05,877 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 6 [2022-10-16 01:19:05,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 01:19:05,878 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2022-10-16 01:19:05,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 01:19:05,879 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2022-10-16 01:19:05,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 01:19:05,880 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 01:19:05,880 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] [2022-10-16 01:19:05,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 01:19:05,881 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [__fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-10-16 01:19:05,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 01:19:05,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1732072654, now seen corresponding path program 1 times [2022-10-16 01:19:05,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 01:19:05,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158913481] [2022-10-16 01:19:05,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 01:19:05,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 01:19:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 01:19:06,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 01:19:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 01:19:06,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 01:19:06,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 01:19:06,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158913481] [2022-10-16 01:19:06,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158913481] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 01:19:06,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 01:19:06,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 01:19:06,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542185994] [2022-10-16 01:19:06,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 01:19:06,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 01:19:06,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 01:19:06,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 01:19:06,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 01:19:06,095 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 01:19:06,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 01:19:06,170 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2022-10-16 01:19:06,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 01:19:06,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-10-16 01:19:06,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 01:19:06,174 INFO L225 Difference]: With dead ends: 46 [2022-10-16 01:19:06,175 INFO L226 Difference]: Without dead ends: 46 [2022-10-16 01:19:06,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 01:19:06,177 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 1 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 01:19:06,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 161 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 01:19:06,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-10-16 01:19:06,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-10-16 01:19:06,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 41 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 01:19:06,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2022-10-16 01:19:06,190 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 20 [2022-10-16 01:19:06,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 01:19:06,190 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2022-10-16 01:19:06,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 01:19:06,191 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2022-10-16 01:19:06,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 01:19:06,192 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 01:19:06,193 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] [2022-10-16 01:19:06,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 01:19:06,193 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [__fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-10-16 01:19:06,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 01:19:06,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1122358401, now seen corresponding path program 1 times [2022-10-16 01:19:06,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 01:19:06,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57425496] [2022-10-16 01:19:06,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 01:19:06,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 01:19:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 01:19:06,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 01:19:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 01:19:06,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 01:19:06,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 01:19:06,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57425496] [2022-10-16 01:19:06,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57425496] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 01:19:06,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 01:19:06,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 01:19:06,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903439366] [2022-10-16 01:19:06,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 01:19:06,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 01:19:06,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 01:19:06,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 01:19:06,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 01:19:06,387 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 01:19:06,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 01:19:06,455 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2022-10-16 01:19:06,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 01:19:06,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-10-16 01:19:06,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 01:19:06,458 INFO L225 Difference]: With dead ends: 50 [2022-10-16 01:19:06,458 INFO L226 Difference]: Without dead ends: 50 [2022-10-16 01:19:06,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 01:19:06,461 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 1 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 01:19:06,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 177 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 01:19:06,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-16 01:19:06,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2022-10-16 01:19:06,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 41 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 01:19:06,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2022-10-16 01:19:06,471 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 21 [2022-10-16 01:19:06,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 01:19:06,471 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2022-10-16 01:19:06,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 01:19:06,472 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2022-10-16 01:19:06,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 01:19:06,473 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 01:19:06,474 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 01:19:06,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 01:19:06,474 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [__fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-10-16 01:19:06,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 01:19:06,475 INFO L85 PathProgramCache]: Analyzing trace with hash 775524630, now seen corresponding path program 1 times [2022-10-16 01:19:06,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 01:19:06,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466209472] [2022-10-16 01:19:06,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 01:19:06,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 01:19:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 01:19:06,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 01:19:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 01:19:06,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 01:19:06,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 01:19:06,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466209472] [2022-10-16 01:19:06,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466209472] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 01:19:06,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 01:19:06,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 01:19:06,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488274760] [2022-10-16 01:19:06,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 01:19:06,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 01:19:06,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 01:19:06,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 01:19:06,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 01:19:06,669 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 01:19:06,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 01:19:06,733 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2022-10-16 01:19:06,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 01:19:06,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-10-16 01:19:06,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 01:19:06,736 INFO L225 Difference]: With dead ends: 50 [2022-10-16 01:19:06,736 INFO L226 Difference]: Without dead ends: 50 [2022-10-16 01:19:06,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 01:19:06,738 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 1 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 01:19:06,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 177 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 01:19:06,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-16 01:19:06,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2022-10-16 01:19:06,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 41 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 01:19:06,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2022-10-16 01:19:06,749 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 22 [2022-10-16 01:19:06,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 01:19:06,749 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2022-10-16 01:19:06,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 01:19:06,750 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2022-10-16 01:19:06,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 01:19:06,751 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 01:19:06,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 01:19:06,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 01:19:06,752 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [__fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-10-16 01:19:06,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 01:19:06,753 INFO L85 PathProgramCache]: Analyzing trace with hash -26270939, now seen corresponding path program 1 times [2022-10-16 01:19:06,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 01:19:06,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025796047] [2022-10-16 01:19:06,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 01:19:06,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 01:19:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 01:19:06,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 01:19:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 01:19:06,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 01:19:06,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 01:19:06,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025796047] [2022-10-16 01:19:06,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025796047] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 01:19:06,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 01:19:06,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 01:19:06,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905690663] [2022-10-16 01:19:06,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 01:19:06,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 01:19:06,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 01:19:06,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 01:19:06,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 01:19:06,906 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 01:19:06,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 01:19:06,967 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2022-10-16 01:19:06,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 01:19:06,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-10-16 01:19:06,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 01:19:06,969 INFO L225 Difference]: With dead ends: 50 [2022-10-16 01:19:06,970 INFO L226 Difference]: Without dead ends: 50 [2022-10-16 01:19:06,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 01:19:06,972 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 1 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 01:19:06,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 177 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 01:19:06,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-16 01:19:06,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2022-10-16 01:19:06,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 41 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 01:19:06,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2022-10-16 01:19:06,981 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 23 [2022-10-16 01:19:06,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 01:19:06,982 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2022-10-16 01:19:06,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 01:19:06,982 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2022-10-16 01:19:06,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 01:19:06,983 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 01:19:06,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 01:19:06,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 01:19:06,984 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [__fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-10-16 01:19:06,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 01:19:06,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1833725402, now seen corresponding path program 1 times [2022-10-16 01:19:06,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 01:19:06,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908952501] [2022-10-16 01:19:06,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 01:19:06,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 01:19:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 01:19:07,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 01:19:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 01:19:07,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 01:19:07,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 01:19:07,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908952501] [2022-10-16 01:19:07,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908952501] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 01:19:07,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 01:19:07,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 01:19:07,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564549324] [2022-10-16 01:19:07,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 01:19:07,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 01:19:07,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 01:19:07,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 01:19:07,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 01:19:07,084 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 01:19:07,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 01:19:07,120 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2022-10-16 01:19:07,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 01:19:07,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-10-16 01:19:07,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 01:19:07,123 INFO L225 Difference]: With dead ends: 44 [2022-10-16 01:19:07,123 INFO L226 Difference]: Without dead ends: 44 [2022-10-16 01:19:07,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 01:19:07,125 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 5 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 01:19:07,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 106 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 01:19:07,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-10-16 01:19:07,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-10-16 01:19:07,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 39 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 01:19:07,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2022-10-16 01:19:07,132 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 23 [2022-10-16 01:19:07,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 01:19:07,133 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2022-10-16 01:19:07,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 01:19:07,134 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2022-10-16 01:19:07,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 01:19:07,135 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 01:19:07,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 01:19:07,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 01:19:07,136 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [__fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-10-16 01:19:07,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 01:19:07,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1833725401, now seen corresponding path program 1 times [2022-10-16 01:19:07,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 01:19:07,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838991708] [2022-10-16 01:19:07,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 01:19:07,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 01:19:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 01:19:07,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 01:19:07,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 01:19:07,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 01:19:07,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 01:19:07,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838991708] [2022-10-16 01:19:07,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838991708] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 01:19:07,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 01:19:07,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 01:19:07,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912789298] [2022-10-16 01:19:07,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 01:19:07,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 01:19:07,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 01:19:07,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 01:19:07,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 01:19:07,264 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 01:19:07,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 01:19:07,296 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2022-10-16 01:19:07,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 01:19:07,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-10-16 01:19:07,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 01:19:07,299 INFO L225 Difference]: With dead ends: 42 [2022-10-16 01:19:07,299 INFO L226 Difference]: Without dead ends: 42 [2022-10-16 01:19:07,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 01:19:07,301 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 3 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 01:19:07,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 109 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 01:19:07,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-16 01:19:07,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-10-16 01:19:07,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 36 states have (on average 1.25) internal successors, (45), 37 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 01:19:07,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2022-10-16 01:19:07,307 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 23 [2022-10-16 01:19:07,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 01:19:07,308 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2022-10-16 01:19:07,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 01:19:07,308 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2022-10-16 01:19:07,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 01:19:07,309 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 01:19:07,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 01:19:07,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 01:19:07,310 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [__fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-10-16 01:19:07,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 01:19:07,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1833701571, now seen corresponding path program 1 times [2022-10-16 01:19:07,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 01:19:07,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798921436] [2022-10-16 01:19:07,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 01:19:07,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 01:19:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 01:19:07,330 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 01:19:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 01:19:07,371 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 01:19:07,372 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 01:19:07,373 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (11 of 12 remaining) [2022-10-16 01:19:07,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __fpclassify_doubleErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 12 remaining) [2022-10-16 01:19:07,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __fpclassify_doubleErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2022-10-16 01:19:07,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __fpclassify_doubleErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 12 remaining) [2022-10-16 01:19:07,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __fpclassify_doubleErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 12 remaining) [2022-10-16 01:19:07,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __fpclassify_doubleErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2022-10-16 01:19:07,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __fpclassify_doubleErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 12 remaining) [2022-10-16 01:19:07,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 12 remaining) [2022-10-16 01:19:07,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 12 remaining) [2022-10-16 01:19:07,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 12 remaining) [2022-10-16 01:19:07,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 12 remaining) [2022-10-16 01:19:07,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 12 remaining) [2022-10-16 01:19:07,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 01:19:07,383 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 01:19:07,388 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 01:19:07,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:19:07 BoogieIcfgContainer [2022-10-16 01:19:07,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 01:19:07,421 INFO L158 Benchmark]: Toolchain (without parser) took 3658.67ms. Allocated memory is still 151.0MB. Free memory was 125.6MB in the beginning and 53.6MB in the end (delta: 72.0MB). Peak memory consumption was 73.5MB. Max. memory is 8.0GB. [2022-10-16 01:19:07,421 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 151.0MB. Free memory was 120.6MB in the beginning and 120.5MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 01:19:07,422 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.14ms. Allocated memory is still 151.0MB. Free memory was 125.5MB in the beginning and 114.8MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-16 01:19:07,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.44ms. Allocated memory is still 151.0MB. Free memory was 114.8MB in the beginning and 113.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 01:19:07,423 INFO L158 Benchmark]: Boogie Preprocessor took 54.47ms. Allocated memory is still 151.0MB. Free memory was 113.2MB in the beginning and 111.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 01:19:07,423 INFO L158 Benchmark]: RCFGBuilder took 739.68ms. Allocated memory is still 151.0MB. Free memory was 111.7MB in the beginning and 132.3MB in the end (delta: -20.6MB). Peak memory consumption was 15.8MB. Max. memory is 8.0GB. [2022-10-16 01:19:07,424 INFO L158 Benchmark]: TraceAbstraction took 2488.47ms. Allocated memory is still 151.0MB. Free memory was 131.8MB in the beginning and 53.6MB in the end (delta: 78.2MB). Peak memory consumption was 78.7MB. Max. memory is 8.0GB. [2022-10-16 01:19:07,426 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 151.0MB. Free memory was 120.6MB in the beginning and 120.5MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 315.14ms. Allocated memory is still 151.0MB. Free memory was 125.5MB in the beginning and 114.8MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.44ms. Allocated memory is still 151.0MB. Free memory was 114.8MB in the beginning and 113.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 54.47ms. Allocated memory is still 151.0MB. Free memory was 113.2MB in the beginning and 111.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 739.68ms. Allocated memory is still 151.0MB. Free memory was 111.7MB in the beginning and 132.3MB in the end (delta: -20.6MB). Peak memory consumption was 15.8MB. Max. memory is 8.0GB. * TraceAbstraction took 2488.47ms. Allocated memory is still 151.0MB. Free memory was 131.8MB in the beginning and 53.6MB in the end (delta: 78.2MB). Peak memory consumption was 78.7MB. 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 - UnprovableResult [Line: 82]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 81, overapproximation of someUnaryDOUBLEoperation at line 77, overapproximation of memtrack at line 82. Possible FailurePath: [L76] double x = 0.0; [L77] double y = -0.0; [L78] CALL, EXPR fmin_double(x, y) [L48] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=0] [L21] __uint32_t msw, lsw; VAL [\old(x)=0, x=0] [L24] ieee_double_shape_type ew_u; VAL [\old(x)=0, ew_u={5:0}, x=0] [L25] ew_u.value = (x) VAL [\old(x)=0, ew_u={5:0}, x=0] [L26] EXPR ew_u.parts.msw VAL [\old(x)=0, ew_u={5:0}, ew_u.parts.msw=2146435073, x=0] [L26] (msw) = ew_u.parts.msw [L27] EXPR ew_u.parts.lsw VAL [\old(x)=0, ew_u={5:0}, ew_u.parts.lsw=4294967297, msw=2146435073, x=0] [L27] (lsw) = ew_u.parts.lsw [L30-L31] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=0, lsw=4294967297, msw=2146435073, x=0] [L33-L34] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=0, lsw=4294967297, msw=2146435073, x=0] [L36-L37] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=0, lsw=4294967297, msw=2146435073, x=0] [L40-L41] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L44] return 0; VAL [\old(x)=0, \result=0, lsw=4294967297, msw=2146435073, x=0] [L48] RET, EXPR __fpclassify_double(x) VAL [\old(x)=0, \old(y)=4294967304, __fpclassify_double(x)=0, x=0, y=4294967304] [L48] COND TRUE __fpclassify_double(x) == 0 [L49] return y; VAL [\old(x)=0, \old(y)=4294967304, \result=4294967304, x=0, y=4294967304] [L78] RET, EXPR fmin_double(x, y) [L78] double res = fmin_double(x, y); [L81] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [res=4294967304, res == -0.0 && __signbit_double(res) == 1=0, x=0, y=4294967304] [L81] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L82] reach_error() VAL [res=4294967304, x=0, y=4294967304] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 50 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 1075 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 694 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 225 IncrementalHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 381 mSDtfsCounter, 225 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, InterpolantAutomatonStates: 34, 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, 8 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 280 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-10-16 01:19:07,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...