/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0661b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 22:58:37,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 22:58:37,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 22:58:37,926 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 22:58:37,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 22:58:37,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 22:58:37,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 22:58:37,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 22:58:37,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 22:58:37,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 22:58:37,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 22:58:37,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 22:58:37,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 22:58:37,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 22:58:37,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 22:58:37,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 22:58:37,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 22:58:37,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 22:58:37,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 22:58:37,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 22:58:37,959 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-01-31 22:58:37,967 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 22:58:37,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 22:58:37,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 22:58:37,968 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 22:58:37,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 22:58:37,969 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 22:58:37,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 22:58:37,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 22:58:37,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 22:58:37,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 22:58:37,969 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 22:58:37,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 22:58:37,970 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 22:58:37,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 22:58:37,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 22:58:37,970 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 22:58:37,971 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 22:58:37,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 22:58:37,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:58:37,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 22:58:37,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 22:58:37,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 22:58:37,972 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 22:58:37,972 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 22:58:38,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 22:58:38,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 22:58:38,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 22:58:38,198 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 22:58:38,202 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 22:58:38,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0661b.c [2022-01-31 22:58:38,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97381517e/c100f8a1d0b0434dae7f7fa240a349e3/FLAG78c9d89ff [2022-01-31 22:58:38,592 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 22:58:38,593 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0661b.c [2022-01-31 22:58:38,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97381517e/c100f8a1d0b0434dae7f7fa240a349e3/FLAG78c9d89ff [2022-01-31 22:58:39,010 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97381517e/c100f8a1d0b0434dae7f7fa240a349e3 [2022-01-31 22:58:39,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 22:58:39,014 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 22:58:39,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 22:58:39,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 22:58:39,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 22:58:39,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:58:39" (1/1) ... [2022-01-31 22:58:39,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1adff489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:39, skipping insertion in model container [2022-01-31 22:58:39,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:58:39" (1/1) ... [2022-01-31 22:58:39,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 22:58:39,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 22:58:39,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0661b.c[6444,6457] [2022-01-31 22:58:39,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:58:39,338 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 22:58:39,400 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0661b.c[6444,6457] [2022-01-31 22:58:39,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:58:39,417 INFO L208 MainTranslator]: Completed translation [2022-01-31 22:58:39,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:39 WrapperNode [2022-01-31 22:58:39,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 22:58:39,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 22:58:39,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 22:58:39,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 22:58:39,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:39" (1/1) ... [2022-01-31 22:58:39,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:39" (1/1) ... [2022-01-31 22:58:39,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:39" (1/1) ... [2022-01-31 22:58:39,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:39" (1/1) ... [2022-01-31 22:58:39,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:39" (1/1) ... [2022-01-31 22:58:39,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:39" (1/1) ... [2022-01-31 22:58:39,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:39" (1/1) ... [2022-01-31 22:58:39,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 22:58:39,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 22:58:39,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 22:58:39,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 22:58:39,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:39" (1/1) ... [2022-01-31 22:58:39,487 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:58:39,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 22:58:39,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 22:58:39,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 22:58:39,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 22:58:39,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 22:58:39,545 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 22:58:39,545 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-01-31 22:58:39,545 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-01-31 22:58:39,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2022-01-31 22:58:39,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2022-01-31 22:58:39,546 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 22:58:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 22:58:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 22:58:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 22:58:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 22:58:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2022-01-31 22:58:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-01-31 22:58:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 22:58:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 22:58:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 22:58:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 22:58:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 22:58:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 22:58:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-01-31 22:58:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2022-01-31 22:58:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2022-01-31 22:58:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 22:58:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 22:58:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 22:58:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-01-31 22:58:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 22:58:39,626 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 22:58:39,627 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 22:58:39,986 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 22:58:39,993 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 22:58:39,993 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2022-01-31 22:58:39,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:58:39 BoogieIcfgContainer [2022-01-31 22:58:39,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 22:58:39,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 22:58:39,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 22:58:40,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 22:58:40,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:58:39" (1/3) ... [2022-01-31 22:58:40,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46a89d45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:58:40, skipping insertion in model container [2022-01-31 22:58:40,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:39" (2/3) ... [2022-01-31 22:58:40,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46a89d45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:58:40, skipping insertion in model container [2022-01-31 22:58:40,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:58:39" (3/3) ... [2022-01-31 22:58:40,009 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0661b.c [2022-01-31 22:58:40,014 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 22:58:40,014 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 22:58:40,063 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 22:58:40,070 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=JORDAN [2022-01-31 22:58:40,071 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 22:58:40,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 96 states have (on average 1.625) internal successors, (156), 97 states have internal predecessors, (156), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-01-31 22:58:40,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-31 22:58:40,106 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:58:40,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:58:40,107 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:58:40,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:58:40,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1786760904, now seen corresponding path program 1 times [2022-01-31 22:58:40,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:58:40,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1030027113] [2022-01-31 22:58:40,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:58:40,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:58:40,180 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:58:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:58:40,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:58:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:58:40,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 22:58:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:58:40,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:58:40,443 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:58:40,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1030027113] [2022-01-31 22:58:40,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1030027113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:58:40,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:58:40,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:58:40,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154527994] [2022-01-31 22:58:40,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:58:40,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:58:40,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:58:40,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:58:40,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:58:40,488 INFO L87 Difference]: Start difference. First operand has 112 states, 96 states have (on average 1.625) internal successors, (156), 97 states have internal predecessors, (156), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-31 22:58:40,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:58:40,933 INFO L93 Difference]: Finished difference Result 218 states and 342 transitions. [2022-01-31 22:58:40,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:58:40,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2022-01-31 22:58:40,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:58:40,947 INFO L225 Difference]: With dead ends: 218 [2022-01-31 22:58:40,947 INFO L226 Difference]: Without dead ends: 107 [2022-01-31 22:58:40,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:58:40,956 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 142 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:58:40,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 143 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:58:40,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-01-31 22:58:41,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-01-31 22:58:41,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 93 states have (on average 1.4193548387096775) internal successors, (132), 93 states have internal predecessors, (132), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-01-31 22:58:41,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 147 transitions. [2022-01-31 22:58:41,011 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 147 transitions. Word has length 20 [2022-01-31 22:58:41,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:58:41,012 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 147 transitions. [2022-01-31 22:58:41,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-31 22:58:41,012 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 147 transitions. [2022-01-31 22:58:41,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-31 22:58:41,013 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:58:41,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:58:41,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 22:58:41,014 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:58:41,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:58:41,014 INFO L85 PathProgramCache]: Analyzing trace with hash -198843905, now seen corresponding path program 1 times [2022-01-31 22:58:41,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:58:41,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747602771] [2022-01-31 22:58:41,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:58:41,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:58:41,017 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:58:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:58:41,085 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 22:58:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:58:41,208 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 22:58:41,208 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 22:58:41,212 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 22:58:41,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 22:58:41,217 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 22:58:41,220 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 22:58:41,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 10:58:41 BoogieIcfgContainer [2022-01-31 22:58:41,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 22:58:41,245 INFO L158 Benchmark]: Toolchain (without parser) took 2230.96ms. Allocated memory was 189.8MB in the beginning and 282.1MB in the end (delta: 92.3MB). Free memory was 135.0MB in the beginning and 246.1MB in the end (delta: -111.2MB). Peak memory consumption was 84.1MB. Max. memory is 8.0GB. [2022-01-31 22:58:41,245 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 189.8MB. Free memory is still 151.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 22:58:41,247 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.75ms. Allocated memory is still 189.8MB. Free memory was 134.7MB in the beginning and 157.1MB in the end (delta: -22.4MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. [2022-01-31 22:58:41,249 INFO L158 Benchmark]: Boogie Preprocessor took 59.43ms. Allocated memory is still 189.8MB. Free memory was 157.1MB in the beginning and 153.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-31 22:58:41,250 INFO L158 Benchmark]: RCFGBuilder took 515.92ms. Allocated memory is still 189.8MB. Free memory was 153.9MB in the beginning and 130.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-01-31 22:58:41,252 INFO L158 Benchmark]: TraceAbstraction took 1248.20ms. Allocated memory was 189.8MB in the beginning and 282.1MB in the end (delta: 92.3MB). Free memory was 130.3MB in the beginning and 246.1MB in the end (delta: -115.8MB). Peak memory consumption was 80.3MB. Max. memory is 8.0GB. [2022-01-31 22:58:41,257 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 189.8MB. Free memory is still 151.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 402.75ms. Allocated memory is still 189.8MB. Free memory was 134.7MB in the beginning and 157.1MB in the end (delta: -22.4MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 59.43ms. Allocated memory is still 189.8MB. Free memory was 157.1MB in the beginning and 153.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 515.92ms. Allocated memory is still 189.8MB. Free memory was 153.9MB in the beginning and 130.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1248.20ms. Allocated memory was 189.8MB in the beginning and 282.1MB in the end (delta: 92.3MB). Free memory was 130.3MB in the beginning and 246.1MB in the end (delta: -115.8MB). Peak memory consumption was 80.3MB. 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: 273]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 272. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L266] double x = __VERIFIER_nondet_double(); [L267] double y = 0.0; [L269] COND TRUE x > 0.0 [L270] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; [L270] RET, EXPR __ieee754_atan2(y, x) [L270] double res = __ieee754_atan2(y, x); [L272] EXPR res == 0.0 && __signbit_double(res) == 0 [L272] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L273] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 115 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 147 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 142 mSDsluCounter, 143 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 151 IncrementalHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 141 mSDtfsCounter, 151 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-01-31 22:58:41,292 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...