/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-benchs/interpolation.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 00:42:05,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 00:42:05,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 00:42:05,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 00:42:05,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 00:42:05,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 00:42:05,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 00:42:05,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 00:42:05,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 00:42:05,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 00:42:05,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 00:42:05,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 00:42:05,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 00:42:05,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 00:42:05,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 00:42:05,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 00:42:05,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 00:42:05,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 00:42:05,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 00:42:05,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 00:42:05,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 00:42:06,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 00:42:06,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 00:42:06,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 00:42:06,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-02 00:42:06,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 00:42:06,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 00:42:06,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 00:42:06,010 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 [2023-04-02 00:42:06,024 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 00:42:06,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 00:42:06,024 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 00:42:06,024 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 00:42:06,025 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 00:42:06,025 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 00:42:06,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 00:42:06,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 00:42:06,026 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 00:42:06,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 00:42:06,026 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 00:42:06,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 00:42:06,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 00:42:06,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 00:42:06,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 00:42:06,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 00:42:06,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 00:42:06,027 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 00:42:06,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 00:42:06,027 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 00:42:06,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 00:42:06,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 00:42:06,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 00:42:06,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 00:42:06,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 00:42:06,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 00:42:06,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 00:42:06,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 00:42:06,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 00:42:06,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 00:42:06,028 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 00:42:06,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 00:42:06,028 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 00:42:06,029 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 00:42:06,029 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 00:42:06,029 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 00:42:06,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 00:42:06,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 00:42:06,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 00:42:06,233 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 00:42:06,234 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 00:42:06,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c [2023-04-02 00:42:07,338 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 00:42:07,492 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 00:42:07,493 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c [2023-04-02 00:42:07,498 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48b94bf2b/df37eabead65442ca7ad2e067d15eec3/FLAG5a8f54026 [2023-04-02 00:42:07,511 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48b94bf2b/df37eabead65442ca7ad2e067d15eec3 [2023-04-02 00:42:07,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 00:42:07,515 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 00:42:07,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 00:42:07,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 00:42:07,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 00:42:07,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 12:42:07" (1/1) ... [2023-04-02 00:42:07,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eb5da1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:42:07, skipping insertion in model container [2023-04-02 00:42:07,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 12:42:07" (1/1) ... [2023-04-02 00:42:07,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 00:42:07,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 00:42:07,642 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-benchs/interpolation.c.v+cfa-reducer.c[1314,1327] [2023-04-02 00:42:07,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 00:42:07,662 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 00:42:07,681 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-benchs/interpolation.c.v+cfa-reducer.c[1314,1327] [2023-04-02 00:42:07,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 00:42:07,693 INFO L208 MainTranslator]: Completed translation [2023-04-02 00:42:07,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:42:07 WrapperNode [2023-04-02 00:42:07,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 00:42:07,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 00:42:07,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 00:42:07,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 00:42:07,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:42:07" (1/1) ... [2023-04-02 00:42:07,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:42:07" (1/1) ... [2023-04-02 00:42:07,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:42:07" (1/1) ... [2023-04-02 00:42:07,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:42:07" (1/1) ... [2023-04-02 00:42:07,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:42:07" (1/1) ... [2023-04-02 00:42:07,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:42:07" (1/1) ... [2023-04-02 00:42:07,723 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:42:07" (1/1) ... [2023-04-02 00:42:07,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:42:07" (1/1) ... [2023-04-02 00:42:07,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 00:42:07,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 00:42:07,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 00:42:07,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 00:42:07,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:42:07" (1/1) ... [2023-04-02 00:42:07,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 00:42:07,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 00:42:07,769 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) [2023-04-02 00:42:07,774 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 [2023-04-02 00:42:07,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 00:42:07,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 00:42:07,793 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 00:42:07,793 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 00:42:07,793 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 00:42:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 00:42:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 00:42:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 00:42:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 00:42:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2023-04-02 00:42:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 00:42:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-04-02 00:42:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 00:42:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 00:42:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-04-02 00:42:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-02 00:42:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 00:42:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 00:42:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 00:42:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 00:42:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 00:42:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 00:42:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-02 00:42:07,857 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 00:42:07,859 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 00:42:08,050 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 00:42:08,054 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 00:42:08,054 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-02 00:42:08,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 12:42:08 BoogieIcfgContainer [2023-04-02 00:42:08,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 00:42:08,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 00:42:08,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 00:42:08,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 00:42:08,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 12:42:07" (1/3) ... [2023-04-02 00:42:08,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e314dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 12:42:08, skipping insertion in model container [2023-04-02 00:42:08,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:42:07" (2/3) ... [2023-04-02 00:42:08,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e314dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 12:42:08, skipping insertion in model container [2023-04-02 00:42:08,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 12:42:08" (3/3) ... [2023-04-02 00:42:08,064 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation.c.v+cfa-reducer.c [2023-04-02 00:42:08,076 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 00:42:08,076 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 00:42:08,109 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 00:42:08,113 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;@2f680244, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 00:42:08,114 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 00:42:08,117 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-02 00:42:08,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-04-02 00:42:08,123 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 00:42:08,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 00:42:08,124 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 00:42:08,130 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 00:42:08,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1395574444, now seen corresponding path program 1 times [2023-04-02 00:42:08,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 00:42:08,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651942277] [2023-04-02 00:42:08,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 00:42:08,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 00:42:08,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:42:08,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 00:42:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:42:08,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 00:42:08,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 00:42:08,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651942277] [2023-04-02 00:42:08,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651942277] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 00:42:08,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 00:42:08,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 00:42:08,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711859856] [2023-04-02 00:42:08,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 00:42:08,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 00:42:08,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 00:42:08,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 00:42:08,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 00:42:08,511 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 00:42:08,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 00:42:08,680 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2023-04-02 00:42:08,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 00:42:08,682 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-04-02 00:42:08,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 00:42:08,687 INFO L225 Difference]: With dead ends: 35 [2023-04-02 00:42:08,687 INFO L226 Difference]: Without dead ends: 19 [2023-04-02 00:42:08,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-04-02 00:42:08,693 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 46 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 00:42:08,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 35 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 00:42:08,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-04-02 00:42:08,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-04-02 00:42:08,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 00:42:08,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2023-04-02 00:42:08,719 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 16 [2023-04-02 00:42:08,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 00:42:08,720 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2023-04-02 00:42:08,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 00:42:08,720 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2023-04-02 00:42:08,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-04-02 00:42:08,720 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 00:42:08,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 00:42:08,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 00:42:08,721 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 00:42:08,721 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 00:42:08,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1380470407, now seen corresponding path program 1 times [2023-04-02 00:42:08,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 00:42:08,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410419210] [2023-04-02 00:42:08,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 00:42:08,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 00:42:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:42:08,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 00:42:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:42:08,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 00:42:08,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 00:42:08,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410419210] [2023-04-02 00:42:08,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410419210] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 00:42:08,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 00:42:08,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 00:42:08,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286127947] [2023-04-02 00:42:08,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 00:42:08,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 00:42:08,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 00:42:08,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 00:42:08,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 00:42:08,838 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 00:42:08,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 00:42:08,893 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2023-04-02 00:42:08,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 00:42:08,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-04-02 00:42:08,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 00:42:08,896 INFO L225 Difference]: With dead ends: 37 [2023-04-02 00:42:08,896 INFO L226 Difference]: Without dead ends: 29 [2023-04-02 00:42:08,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 00:42:08,900 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 37 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 00:42:08,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 12 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 00:42:08,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-04-02 00:42:08,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20. [2023-04-02 00:42:08,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 00:42:08,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2023-04-02 00:42:08,913 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 16 [2023-04-02 00:42:08,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 00:42:08,913 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2023-04-02 00:42:08,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 00:42:08,913 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2023-04-02 00:42:08,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-04-02 00:42:08,914 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 00:42:08,914 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 00:42:08,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 00:42:08,914 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 00:42:08,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 00:42:08,914 INFO L85 PathProgramCache]: Analyzing trace with hash 579159571, now seen corresponding path program 1 times [2023-04-02 00:42:08,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 00:42:08,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661752235] [2023-04-02 00:42:08,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 00:42:08,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 00:42:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 00:42:08,929 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 00:42:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 00:42:08,948 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 00:42:08,948 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 00:42:08,949 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 00:42:08,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 00:42:08,952 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-04-02 00:42:08,954 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 00:42:08,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 12:42:08 BoogieIcfgContainer [2023-04-02 00:42:08,971 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 00:42:08,971 INFO L158 Benchmark]: Toolchain (without parser) took 1456.91ms. Allocated memory is still 311.4MB. Free memory was 261.4MB in the beginning and 229.0MB in the end (delta: 32.3MB). Peak memory consumption was 32.7MB. Max. memory is 8.0GB. [2023-04-02 00:42:08,972 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 221.2MB. Free memory was 171.4MB in the beginning and 171.2MB in the end (delta: 193.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 00:42:08,972 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.90ms. Allocated memory is still 311.4MB. Free memory was 261.1MB in the beginning and 250.2MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-04-02 00:42:08,972 INFO L158 Benchmark]: Boogie Preprocessor took 30.50ms. Allocated memory is still 311.4MB. Free memory was 250.2MB in the beginning and 248.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-02 00:42:08,973 INFO L158 Benchmark]: RCFGBuilder took 330.55ms. Allocated memory is still 311.4MB. Free memory was 248.5MB in the beginning and 236.2MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-04-02 00:42:08,973 INFO L158 Benchmark]: TraceAbstraction took 911.36ms. Allocated memory is still 311.4MB. Free memory was 235.6MB in the beginning and 229.0MB in the end (delta: 6.5MB). Peak memory consumption was 7.5MB. Max. memory is 8.0GB. [2023-04-02 00:42:08,974 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 221.2MB. Free memory was 171.4MB in the beginning and 171.2MB in the end (delta: 193.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 176.90ms. Allocated memory is still 311.4MB. Free memory was 261.1MB in the beginning and 250.2MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.50ms. Allocated memory is still 311.4MB. Free memory was 250.2MB in the beginning and 248.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 330.55ms. Allocated memory is still 311.4MB. Free memory was 248.5MB in the beginning and 236.2MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 911.36ms. Allocated memory is still 311.4MB. Free memory was 235.6MB in the beginning and 229.0MB in the end (delta: 6.5MB). Peak memory consumption was 7.5MB. 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 - UnprovableResult [Line: 51]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 33, overapproximation of someBinaryDOUBLEComparisonOperation at line 38, overapproximation of to_real at line 18, overapproximation of someBinaryArithmeticFLOAToperation at line 36. Possible FailurePath: [L1] int __return_main; [L12] int __return_125; VAL [\old(__return_125)=49, \old(__return_main)=52, __return_125=0, __return_main=0] [L15] int main__i; [L16] float main__z; [L17] float main__t; [L18] float main__min[5] = { 5, 10, 12, 30, 150 }; [L19] float main__max[5] = { 10, 12, 30, 150, 300 }; [L20] main__t = __VERIFIER_nondet_float() [L21] int main____CPAchecker_TMP_0; [L22] EXPR main__min[0] VAL [\old(__return_125)=0, __return_125=0, __return_main=0, main__max={5:0}, main__min={4:0}, main__min[0]=60] [L22] COND TRUE main__t >= (main__min[0]) [L24] EXPR main__max[4UL] VAL [\old(__return_125)=0, __return_125=0, __return_main=0, main__max={5:0}, main__max[4UL]=59, main__min={4:0}] [L24] COND TRUE main__t <= (main__max[4UL]) [L26] main____CPAchecker_TMP_0 = 1 VAL [\old(__return_125)=0, __return_125=0, __return_main=0, main____CPAchecker_TMP_0=1, main__max={5:0}, main__min={4:0}] [L27] COND TRUE main____CPAchecker_TMP_0 != 0 [L29] main__i = 0 VAL [\old(__return_125)=0, __return_125=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={5:0}, main__min={4:0}] [L31] COND TRUE main__i < 5UL [L33] EXPR main__max[main__i] VAL [\old(__return_125)=0, __return_125=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={5:0}, main__max[main__i]=61, main__min={4:0}] [L33] COND TRUE main__t <= (main__max[main__i]) [L36] EXPR main__min[main__i] [L36] EXPR main__max[main__i] [L36] EXPR main__min[main__i] [L36] main__z = (main__t - (main__min[main__i])) / ((main__max[main__i]) - (main__min[main__i])) [L37] int main____CPAchecker_TMP_1; VAL [\old(__return_125)=0, __return_125=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={5:0}, main__min={4:0}] [L38] COND FALSE !(main__z >= 0.0) VAL [\old(__return_125)=0, __return_125=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={5:0}, main__min={4:0}] [L64] main____CPAchecker_TMP_1 = 0 VAL [\old(__return_125)=0, __return_125=0, __return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}, main__min={4:0}] [L45] int __tmp_1; [L46] __tmp_1 = main____CPAchecker_TMP_1 [L47] int __VERIFIER_assert__cond; [L48] __VERIFIER_assert__cond = __tmp_1 VAL [\old(__return_125)=0, __VERIFIER_assert__cond=0, __return_125=0, __return_main=0, __tmp_1=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}, main__min={4:0}] [L49] COND TRUE __VERIFIER_assert__cond == 0 VAL [\old(__return_125)=0, __VERIFIER_assert__cond=0, __return_125=0, __return_main=0, __tmp_1=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}, main__min={4:0}] [L51] reach_error() VAL [\old(__return_125)=0, __VERIFIER_assert__cond=0, __return_125=0, __return_main=0, __tmp_1=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}, main__min={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 14 mSDtfsCounter, 105 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2023-04-02 00:42:08,992 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...