/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1300.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 00:04:46,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 00:04:46,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 00:04:46,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 00:04:46,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 00:04:46,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 00:04:46,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 00:04:46,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 00:04:46,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 00:04:46,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 00:04:46,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 00:04:46,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 00:04:46,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 00:04:46,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 00:04:46,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 00:04:46,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 00:04:46,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 00:04:46,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 00:04:46,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 00:04:46,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 00:04:46,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 00:04:46,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 00:04:46,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 00:04:46,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 00:04:46,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-31 00:04:46,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 00:04:46,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 00:04:46,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 00:04:46,967 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-31 00:04:46,997 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 00:04:46,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 00:04:46,998 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 00:04:46,998 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 00:04:46,999 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 00:04:46,999 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 00:04:47,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 00:04:47,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 00:04:47,001 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 00:04:47,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 00:04:47,002 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 00:04:47,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 00:04:47,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 00:04:47,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 00:04:47,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 00:04:47,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 00:04:47,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 00:04:47,003 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 00:04:47,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 00:04:47,003 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 00:04:47,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 00:04:47,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 00:04:47,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 00:04:47,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 00:04:47,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:04:47,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 00:04:47,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 00:04:47,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 00:04:47,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 00:04:47,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 00:04:47,004 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 00:04:47,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 00:04:47,005 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 00:04:47,005 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 00:04:47,005 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 00:04:47,005 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 00:04:47,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 00:04:47,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 00:04:47,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 00:04:47,262 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 00:04:47,262 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 00:04:47,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1300.c [2023-03-31 00:04:48,423 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 00:04:48,618 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 00:04:48,619 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1300.c [2023-03-31 00:04:48,634 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e96b281df/71d32cf8101b447a9ac7320fc7e76ec1/FLAG43d133a21 [2023-03-31 00:04:48,647 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e96b281df/71d32cf8101b447a9ac7320fc7e76ec1 [2023-03-31 00:04:48,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 00:04:48,651 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 00:04:48,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 00:04:48,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 00:04:48,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 00:04:48,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:04:48" (1/1) ... [2023-03-31 00:04:48,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fb27dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:48, skipping insertion in model container [2023-03-31 00:04:48,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:04:48" (1/1) ... [2023-03-31 00:04:48,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 00:04:48,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 00:04:48,815 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1300.c[1563,1576] [2023-03-31 00:04:48,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:04:48,831 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 00:04:48,852 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1300.c[1563,1576] [2023-03-31 00:04:48,854 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:04:48,869 INFO L208 MainTranslator]: Completed translation [2023-03-31 00:04:48,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:48 WrapperNode [2023-03-31 00:04:48,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 00:04:48,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 00:04:48,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 00:04:48,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 00:04:48,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:48" (1/1) ... [2023-03-31 00:04:48,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:48" (1/1) ... [2023-03-31 00:04:48,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:48" (1/1) ... [2023-03-31 00:04:48,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:48" (1/1) ... [2023-03-31 00:04:48,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:48" (1/1) ... [2023-03-31 00:04:48,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:48" (1/1) ... [2023-03-31 00:04:48,927 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:48" (1/1) ... [2023-03-31 00:04:48,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:48" (1/1) ... [2023-03-31 00:04:48,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 00:04:48,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 00:04:48,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 00:04:48,931 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 00:04:48,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:48" (1/1) ... [2023-03-31 00:04:48,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:04:48,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:04:48,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 00:04:48,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 00:04:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 00:04:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 00:04:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 00:04:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2023-03-31 00:04:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2023-03-31 00:04:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2023-03-31 00:04:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 00:04:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 00:04:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 00:04:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 00:04:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 00:04:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2023-03-31 00:04:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2023-03-31 00:04:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-31 00:04:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-03-31 00:04:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 00:04:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 00:04:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2023-03-31 00:04:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2023-03-31 00:04:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 00:04:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 00:04:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 00:04:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 00:04:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 00:04:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-03-31 00:04:49,096 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 00:04:49,097 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 00:04:49,284 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 00:04:49,288 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 00:04:49,289 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-03-31 00:04:49,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:04:49 BoogieIcfgContainer [2023-03-31 00:04:49,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 00:04:49,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 00:04:49,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 00:04:49,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 00:04:49,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 12:04:48" (1/3) ... [2023-03-31 00:04:49,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b54ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:04:49, skipping insertion in model container [2023-03-31 00:04:49,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:04:48" (2/3) ... [2023-03-31 00:04:49,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b54ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:04:49, skipping insertion in model container [2023-03-31 00:04:49,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:04:49" (3/3) ... [2023-03-31 00:04:49,297 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1300.c [2023-03-31 00:04:49,310 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 00:04:49,311 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 00:04:49,355 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 00:04:49,361 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@692495c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 00:04:49,361 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 00:04:49,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 34 states have internal predecessors, (47), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-03-31 00:04:49,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-03-31 00:04:49,373 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:04:49,374 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:04:49,375 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:04:49,380 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:04:49,380 INFO L85 PathProgramCache]: Analyzing trace with hash -908905053, now seen corresponding path program 1 times [2023-03-31 00:04:49,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:04:49,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902186417] [2023-03-31 00:04:49,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:04:49,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:04:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:49,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:04:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:49,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:04:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:49,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-03-31 00:04:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:49,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:04:49,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:04:49,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902186417] [2023-03-31 00:04:49,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902186417] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:04:49,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:04:49,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-31 00:04:49,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079642609] [2023-03-31 00:04:49,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:04:49,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 00:04:49,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:04:49,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 00:04:49,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-03-31 00:04:49,717 INFO L87 Difference]: Start difference. First operand has 45 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 34 states have internal predecessors, (47), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-03-31 00:04:49,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:04:49,884 INFO L93 Difference]: Finished difference Result 82 states and 107 transitions. [2023-03-31 00:04:49,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 00:04:49,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2023-03-31 00:04:49,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:04:49,901 INFO L225 Difference]: With dead ends: 82 [2023-03-31 00:04:49,901 INFO L226 Difference]: Without dead ends: 40 [2023-03-31 00:04:49,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-03-31 00:04:49,908 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 48 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:04:49,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 7 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 00:04:49,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-03-31 00:04:49,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-03-31 00:04:49,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-03-31 00:04:49,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2023-03-31 00:04:49,956 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 29 [2023-03-31 00:04:49,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:04:49,957 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2023-03-31 00:04:49,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-03-31 00:04:49,958 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2023-03-31 00:04:49,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-03-31 00:04:49,960 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:04:49,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:04:49,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 00:04:49,962 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:04:49,968 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:04:49,968 INFO L85 PathProgramCache]: Analyzing trace with hash -2013836588, now seen corresponding path program 1 times [2023-03-31 00:04:49,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:04:49,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894832887] [2023-03-31 00:04:49,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:04:49,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:04:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:50,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:04:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:50,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:04:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:50,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-03-31 00:04:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:50,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:04:50,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:04:50,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894832887] [2023-03-31 00:04:50,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894832887] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:04:50,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:04:50,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 00:04:50,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465379271] [2023-03-31 00:04:50,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:04:50,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 00:04:50,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:04:50,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 00:04:50,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-03-31 00:04:50,223 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-03-31 00:04:50,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:04:50,441 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2023-03-31 00:04:50,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-31 00:04:50,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2023-03-31 00:04:50,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:04:50,446 INFO L225 Difference]: With dead ends: 52 [2023-03-31 00:04:50,446 INFO L226 Difference]: Without dead ends: 40 [2023-03-31 00:04:50,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-03-31 00:04:50,448 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 44 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 00:04:50,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 5 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 00:04:50,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-03-31 00:04:50,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-03-31 00:04:50,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 30 states have (on average 1.2) internal successors, (36), 30 states have internal predecessors, (36), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-03-31 00:04:50,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2023-03-31 00:04:50,459 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 31 [2023-03-31 00:04:50,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:04:50,460 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2023-03-31 00:04:50,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-03-31 00:04:50,460 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2023-03-31 00:04:50,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-03-31 00:04:50,462 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:04:50,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:04:50,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 00:04:50,463 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:04:50,464 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:04:50,464 INFO L85 PathProgramCache]: Analyzing trace with hash 251479990, now seen corresponding path program 1 times [2023-03-31 00:04:50,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:04:50,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401196029] [2023-03-31 00:04:50,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:04:50,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:04:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:50,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:04:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:50,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:04:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:51,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-03-31 00:04:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:51,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:04:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:51,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:04:51,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:04:51,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401196029] [2023-03-31 00:04:51,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401196029] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:04:51,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:04:51,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 00:04:51,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537073039] [2023-03-31 00:04:51,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:04:51,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 00:04:51,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:04:51,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 00:04:51,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-03-31 00:04:51,048 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-03-31 00:04:51,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:04:51,288 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2023-03-31 00:04:51,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-03-31 00:04:51,289 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2023-03-31 00:04:51,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:04:51,291 INFO L225 Difference]: With dead ends: 62 [2023-03-31 00:04:51,291 INFO L226 Difference]: Without dead ends: 40 [2023-03-31 00:04:51,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:04:51,297 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 47 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 00:04:51,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 11 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 00:04:51,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-03-31 00:04:51,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-03-31 00:04:51,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 30 states have internal predecessors, (34), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-03-31 00:04:51,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2023-03-31 00:04:51,312 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 36 [2023-03-31 00:04:51,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:04:51,312 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2023-03-31 00:04:51,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-03-31 00:04:51,312 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2023-03-31 00:04:51,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-03-31 00:04:51,313 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:04:51,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:04:51,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 00:04:51,314 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:04:51,314 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:04:51,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1875538749, now seen corresponding path program 1 times [2023-03-31 00:04:51,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:04:51,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186125894] [2023-03-31 00:04:51,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:04:51,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:04:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:51,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:04:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:51,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:04:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:51,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-03-31 00:04:51,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:51,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-03-31 00:04:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:04:51,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:04:51,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:04:51,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186125894] [2023-03-31 00:04:51,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186125894] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:04:51,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:04:51,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 00:04:51,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524656935] [2023-03-31 00:04:51,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:04:51,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 00:04:51,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:04:51,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 00:04:51,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-03-31 00:04:51,877 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 7 states have internal predecessors, (28), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-03-31 00:04:52,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:04:52,121 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2023-03-31 00:04:52,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-03-31 00:04:52,121 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 7 states have internal predecessors, (28), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2023-03-31 00:04:52,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:04:52,121 INFO L225 Difference]: With dead ends: 41 [2023-03-31 00:04:52,121 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 00:04:52,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2023-03-31 00:04:52,124 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 40 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:04:52,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 13 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 00:04:52,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 00:04:52,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 00:04:52,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-03-31 00:04:52,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 00:04:52,126 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2023-03-31 00:04:52,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:04:52,126 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 00:04:52,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 7 states have internal predecessors, (28), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-03-31 00:04:52,126 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 00:04:52,127 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 00:04:52,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 00:04:52,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 00:04:52,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-03-31 00:04:52,181 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2023-03-31 00:04:52,181 INFO L899 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2023-03-31 00:04:52,181 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 3) no Hoare annotation was computed. [2023-03-31 00:04:52,182 INFO L899 garLoopResultBuilder]: For program point isnan_doubleEXIT(line 33) no Hoare annotation was computed. [2023-03-31 00:04:52,182 INFO L899 garLoopResultBuilder]: For program point isnan_doubleFINAL(line 33) no Hoare annotation was computed. [2023-03-31 00:04:52,182 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 33) the Hoare annotation is: true [2023-03-31 00:04:52,182 INFO L899 garLoopResultBuilder]: For program point isfinite_doubleFINAL(lines 35 43) no Hoare annotation was computed. [2023-03-31 00:04:52,182 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 35 43) the Hoare annotation is: true [2023-03-31 00:04:52,182 INFO L899 garLoopResultBuilder]: For program point isfinite_doubleEXIT(lines 35 43) no Hoare annotation was computed. [2023-03-31 00:04:52,182 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 37 41) no Hoare annotation was computed. [2023-03-31 00:04:52,183 INFO L902 garLoopResultBuilder]: At program point L37-2(lines 37 41) the Hoare annotation is: true [2023-03-31 00:04:52,183 INFO L899 garLoopResultBuilder]: For program point L37-3(lines 37 41) no Hoare annotation was computed. [2023-03-31 00:04:52,183 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2023-03-31 00:04:52,183 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2023-03-31 00:04:52,183 INFO L899 garLoopResultBuilder]: For program point L29-2(line 29) no Hoare annotation was computed. [2023-03-31 00:04:52,183 INFO L899 garLoopResultBuilder]: For program point L27-2(line 27) no Hoare annotation was computed. [2023-03-31 00:04:52,183 INFO L899 garLoopResultBuilder]: For program point L29-4(line 29) no Hoare annotation was computed. [2023-03-31 00:04:52,183 INFO L899 garLoopResultBuilder]: For program point L27-4(line 27) no Hoare annotation was computed. [2023-03-31 00:04:52,183 INFO L899 garLoopResultBuilder]: For program point L27-6(line 27) no Hoare annotation was computed. [2023-03-31 00:04:52,183 INFO L899 garLoopResultBuilder]: For program point L27-8(line 27) no Hoare annotation was computed. [2023-03-31 00:04:52,184 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 18 30) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2023-03-31 00:04:52,184 INFO L899 garLoopResultBuilder]: For program point L20-1(lines 20 25) no Hoare annotation was computed. [2023-03-31 00:04:52,184 INFO L895 garLoopResultBuilder]: At program point L20-2(lines 20 25) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2023-03-31 00:04:52,184 INFO L899 garLoopResultBuilder]: For program point L20-3(lines 20 25) no Hoare annotation was computed. [2023-03-31 00:04:52,184 INFO L899 garLoopResultBuilder]: For program point isinf_doubleFINAL(lines 18 30) no Hoare annotation was computed. [2023-03-31 00:04:52,184 INFO L899 garLoopResultBuilder]: For program point isinf_doubleEXIT(lines 18 30) no Hoare annotation was computed. [2023-03-31 00:04:52,185 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 63) no Hoare annotation was computed. [2023-03-31 00:04:52,185 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 45 67) no Hoare annotation was computed. [2023-03-31 00:04:52,185 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 45 67) no Hoare annotation was computed. [2023-03-31 00:04:52,185 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 45 67) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2023-03-31 00:04:52,185 INFO L899 garLoopResultBuilder]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 61) no Hoare annotation was computed. [2023-03-31 00:04:52,185 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2023-03-31 00:04:52,185 INFO L895 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: false [2023-03-31 00:04:52,185 INFO L899 garLoopResultBuilder]: For program point L57-1(line 57) no Hoare annotation was computed. [2023-03-31 00:04:52,186 INFO L895 garLoopResultBuilder]: At program point L55(line 55) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2023-03-31 00:04:52,186 INFO L899 garLoopResultBuilder]: For program point L55-1(line 55) no Hoare annotation was computed. [2023-03-31 00:04:52,186 INFO L899 garLoopResultBuilder]: For program point L55-2(line 55) no Hoare annotation was computed. [2023-03-31 00:04:52,186 INFO L895 garLoopResultBuilder]: At program point L55-3(line 55) the Hoare annotation is: false [2023-03-31 00:04:52,186 INFO L899 garLoopResultBuilder]: For program point L55-4(line 55) no Hoare annotation was computed. [2023-03-31 00:04:52,186 INFO L899 garLoopResultBuilder]: For program point L55-6(lines 55 64) no Hoare annotation was computed. [2023-03-31 00:04:52,186 INFO L899 garLoopResultBuilder]: For program point L55-8(lines 55 64) no Hoare annotation was computed. [2023-03-31 00:04:52,186 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2023-03-31 00:04:52,186 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2023-03-31 00:04:52,187 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-03-31 00:04:52,187 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-03-31 00:04:52,187 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2023-03-31 00:04:52,187 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-03-31 00:04:52,187 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 00:04:52,191 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-03-31 00:04:52,193 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 00:04:52,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 12:04:52 BoogieIcfgContainer [2023-03-31 00:04:52,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 00:04:52,244 INFO L158 Benchmark]: Toolchain (without parser) took 3590.81ms. Allocated memory is still 318.8MB. Free memory was 270.3MB in the beginning and 205.1MB in the end (delta: 65.3MB). Peak memory consumption was 66.8MB. Max. memory is 8.0GB. [2023-03-31 00:04:52,247 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 202.4MB. Free memory was 151.6MB in the beginning and 151.5MB in the end (delta: 172.1kB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 00:04:52,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.34ms. Allocated memory is still 318.8MB. Free memory was 270.3MB in the beginning and 259.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 00:04:52,248 INFO L158 Benchmark]: Boogie Preprocessor took 59.27ms. Allocated memory is still 318.8MB. Free memory was 259.8MB in the beginning and 257.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-31 00:04:52,249 INFO L158 Benchmark]: RCFGBuilder took 359.55ms. Allocated memory is still 318.8MB. Free memory was 257.7MB in the beginning and 242.5MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-03-31 00:04:52,249 INFO L158 Benchmark]: TraceAbstraction took 2949.14ms. Allocated memory is still 318.8MB. Free memory was 241.5MB in the beginning and 205.1MB in the end (delta: 36.4MB). Peak memory consumption was 37.5MB. Max. memory is 8.0GB. [2023-03-31 00:04:52,251 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 202.4MB. Free memory was 151.6MB in the beginning and 151.5MB in the end (delta: 172.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 218.34ms. Allocated memory is still 318.8MB. Free memory was 270.3MB in the beginning and 259.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 59.27ms. Allocated memory is still 318.8MB. Free memory was 259.8MB in the beginning and 257.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 359.55ms. Allocated memory is still 318.8MB. Free memory was 257.7MB in the beginning and 242.5MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 2949.14ms. Allocated memory is still 318.8MB. Free memory was 241.5MB in the beginning and 205.1MB in the end (delta: 36.4MB). Peak memory consumption was 37.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 61]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 185 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 179 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 620 IncrementalHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 14 mSDtfsCounter, 620 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 31, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 20 PreInvPairs, 21 NumberOfFragments, 66 HoareAnnotationTreeSize, 20 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 356 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((\old(unknown-#length-unknown) == unknown-#length-unknown && \old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown) && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && \old(\valid) == \valid RESULT: Ultimate proved your program to be correct! [2023-03-31 00:04:52,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...