/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_0684b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 22:58:58,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 22:58:58,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 22:58:58,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 22:58:58,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 22:58:58,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 22:58:58,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 22:58:58,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 22:58:58,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 22:58:58,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 22:58:58,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 22:58:58,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 22:58:58,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 22:58:58,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 22:58:58,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 22:58:58,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 22:58:58,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 22:58:58,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 22:58:58,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 22:58:58,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 22:58:58,719 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 22:58:58,725 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 22:58:58,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 22:58:58,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 22:58:58,726 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 22:58:58,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 22:58:58,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 22:58:58,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 22:58:58,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 22:58:58,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 22:58:58,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 22:58:58,727 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 22:58:58,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 22:58:58,727 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 22:58:58,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 22:58:58,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 22:58:58,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 22:58:58,727 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 22:58:58,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 22:58:58,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:58:58,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 22:58:58,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 22:58:58,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 22:58:58,728 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 22:58:58,728 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 22:58:58,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 22:58:58,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 22:58:58,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 22:58:58,916 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 22:58:58,916 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 22:58:58,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0684b.c [2022-01-31 22:58:58,958 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/824027a14/f019d412411040409b4b650adee6ea9f/FLAGc72a985f5 [2022-01-31 22:58:59,322 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 22:58:59,323 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0684b.c [2022-01-31 22:58:59,327 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/824027a14/f019d412411040409b4b650adee6ea9f/FLAGc72a985f5 [2022-01-31 22:58:59,337 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/824027a14/f019d412411040409b4b650adee6ea9f [2022-01-31 22:58:59,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 22:58:59,340 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 22:58:59,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 22:58:59,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 22:58:59,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 22:58:59,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:58:59" (1/1) ... [2022-01-31 22:58:59,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@277bf507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:59, skipping insertion in model container [2022-01-31 22:58:59,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:58:59" (1/1) ... [2022-01-31 22:58:59,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 22:58:59,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 22:58:59,542 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_0684b.c[6891,6904] [2022-01-31 22:58:59,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:58:59,554 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 22:58:59,609 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_0684b.c[6891,6904] [2022-01-31 22:58:59,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:58:59,620 INFO L208 MainTranslator]: Completed translation [2022-01-31 22:58:59,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:59 WrapperNode [2022-01-31 22:58:59,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 22:58:59,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 22:58:59,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 22:58:59,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 22:58:59,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:59" (1/1) ... [2022-01-31 22:58:59,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:59" (1/1) ... [2022-01-31 22:58:59,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:59" (1/1) ... [2022-01-31 22:58:59,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:59" (1/1) ... [2022-01-31 22:58:59,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:59" (1/1) ... [2022-01-31 22:58:59,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:59" (1/1) ... [2022-01-31 22:58:59,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:59" (1/1) ... [2022-01-31 22:58:59,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 22:58:59,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 22:58:59,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 22:58:59,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 22:58:59,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:59" (1/1) ... [2022-01-31 22:58:59,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:58:59,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 22:58:59,681 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 22:58:59,697 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 22:58:59,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 22:58:59,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 22:58:59,712 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 22:58:59,712 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-01-31 22:58:59,713 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-01-31 22:58:59,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2022-01-31 22:58:59,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2022-01-31 22:58:59,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2022-01-31 22:58:59,714 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 22:58:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 22:58:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 22:58:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 22:58:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 22:58:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2022-01-31 22:58:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-01-31 22:58:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 22:58:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 22:58:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 22:58:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 22:58:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 22:58:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 22:58:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-01-31 22:58:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2022-01-31 22:58:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2022-01-31 22:58:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2022-01-31 22:58:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 22:58:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 22:58:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 22:58:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-01-31 22:58:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 22:58:59,793 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 22:58:59,794 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 22:59:00,046 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 22:59:00,052 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 22:59:00,052 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2022-01-31 22:59:00,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:59:00 BoogieIcfgContainer [2022-01-31 22:59:00,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 22:59:00,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 22:59:00,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 22:59:00,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 22:59:00,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:58:59" (1/3) ... [2022-01-31 22:59:00,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2df6fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:59:00, skipping insertion in model container [2022-01-31 22:59:00,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:59" (2/3) ... [2022-01-31 22:59:00,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2df6fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:59:00, skipping insertion in model container [2022-01-31 22:59:00,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:59:00" (3/3) ... [2022-01-31 22:59:00,058 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684b.c [2022-01-31 22:59:00,061 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 22:59:00,062 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 22:59:00,088 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 22:59:00,092 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 22:59:00,092 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 22:59:00,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 102 states have (on average 1.607843137254902) internal successors, (164), 103 states have internal predecessors, (164), 9 states have call successors, (9), 7 states have call predecessors, (9), 7 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-01-31 22:59:00,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-31 22:59:00,107 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:59:00,108 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, 1, 1, 1, 1, 1] [2022-01-31 22:59:00,108 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:59:00,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:59:00,111 INFO L85 PathProgramCache]: Analyzing trace with hash 519381752, now seen corresponding path program 1 times [2022-01-31 22:59:00,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:59:00,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839553416] [2022-01-31 22:59:00,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:59:00,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:59:00,159 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:59:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:00,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:59:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:00,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 22:59:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:00,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 22:59:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:00,386 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 22:59:00,388 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:59:00,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1839553416] [2022-01-31 22:59:00,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1839553416] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:59:00,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:59:00,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:59:00,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965339552] [2022-01-31 22:59:00,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:59:00,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:59:00,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:59:00,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:59:00,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:59:00,412 INFO L87 Difference]: Start difference. First operand has 120 states, 102 states have (on average 1.607843137254902) internal successors, (164), 103 states have internal predecessors, (164), 9 states have call successors, (9), 7 states have call predecessors, (9), 7 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 2 states have internal predecessors, (20), 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) [2022-01-31 22:59:00,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:59:00,904 INFO L93 Difference]: Finished difference Result 232 states and 362 transitions. [2022-01-31 22:59:00,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:59:00,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 2 states have internal predecessors, (20), 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 27 [2022-01-31 22:59:00,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:59:00,915 INFO L225 Difference]: With dead ends: 232 [2022-01-31 22:59:00,915 INFO L226 Difference]: Without dead ends: 115 [2022-01-31 22:59:00,923 INFO L932 BasicCegarLoop]: 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 [2022-01-31 22:59:00,927 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 142 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:59:00,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 149 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 22:59:00,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-01-31 22:59:00,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-01-31 22:59:00,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 99 states have (on average 1.393939393939394) internal successors, (138), 99 states have internal predecessors, (138), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-01-31 22:59:00,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 155 transitions. [2022-01-31 22:59:00,995 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 155 transitions. Word has length 27 [2022-01-31 22:59:00,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:59:00,996 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 155 transitions. [2022-01-31 22:59:00,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 2 states have internal predecessors, (20), 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) [2022-01-31 22:59:00,996 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 155 transitions. [2022-01-31 22:59:00,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-31 22:59:00,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:59:00,997 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:59:00,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 22:59:00,997 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:59:00,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:59:00,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1436519746, now seen corresponding path program 1 times [2022-01-31 22:59:00,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:59:00,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [403050258] [2022-01-31 22:59:00,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:59:00,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:59:01,000 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:59:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:01,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:59:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:01,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 22:59:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:01,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-31 22:59:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:01,123 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 22:59:01,123 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:59:01,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [403050258] [2022-01-31 22:59:01,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [403050258] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:59:01,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:59:01,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:59:01,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709850544] [2022-01-31 22:59:01,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:59:01,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:59:01,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:59:01,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:59:01,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:59:01,125 INFO L87 Difference]: Start difference. First operand 115 states and 155 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-01-31 22:59:01,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:59:01,474 INFO L93 Difference]: Finished difference Result 207 states and 286 transitions. [2022-01-31 22:59:01,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:59:01,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 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 30 [2022-01-31 22:59:01,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:59:01,476 INFO L225 Difference]: With dead ends: 207 [2022-01-31 22:59:01,476 INFO L226 Difference]: Without dead ends: 115 [2022-01-31 22:59:01,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-31 22:59:01,477 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 138 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:59:01,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 143 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:59:01,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-01-31 22:59:01,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-01-31 22:59:01,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 99 states have (on average 1.3838383838383839) internal successors, (137), 99 states have internal predecessors, (137), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-01-31 22:59:01,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 154 transitions. [2022-01-31 22:59:01,494 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 154 transitions. Word has length 30 [2022-01-31 22:59:01,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:59:01,494 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 154 transitions. [2022-01-31 22:59:01,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-01-31 22:59:01,494 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 154 transitions. [2022-01-31 22:59:01,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-31 22:59:01,495 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:59:01,495 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:59:01,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 22:59:01,495 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:59:01,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:59:01,496 INFO L85 PathProgramCache]: Analyzing trace with hash -353768086, now seen corresponding path program 1 times [2022-01-31 22:59:01,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:59:01,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [925744522] [2022-01-31 22:59:01,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:59:01,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:59:01,497 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:59:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:59:01,570 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 22:59:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:59:01,666 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 22:59:01,667 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 22:59:01,668 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 22:59:01,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 22:59:01,671 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-31 22:59:01,673 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 22:59:01,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 10:59:01 BoogieIcfgContainer [2022-01-31 22:59:01,683 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 22:59:01,683 INFO L158 Benchmark]: Toolchain (without parser) took 2343.40ms. Allocated memory was 176.2MB in the beginning and 226.5MB in the end (delta: 50.3MB). Free memory was 121.6MB in the beginning and 100.9MB in the end (delta: 20.7MB). Peak memory consumption was 71.9MB. Max. memory is 8.0GB. [2022-01-31 22:59:01,684 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 176.2MB. Free memory is still 138.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 22:59:01,684 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.87ms. Allocated memory was 176.2MB in the beginning and 226.5MB in the end (delta: 50.3MB). Free memory was 121.4MB in the beginning and 193.6MB in the end (delta: -72.3MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB. [2022-01-31 22:59:01,684 INFO L158 Benchmark]: Boogie Preprocessor took 37.84ms. Allocated memory is still 226.5MB. Free memory was 193.6MB in the beginning and 190.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-31 22:59:01,684 INFO L158 Benchmark]: RCFGBuilder took 393.72ms. Allocated memory is still 226.5MB. Free memory was 190.5MB in the beginning and 165.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2022-01-31 22:59:01,685 INFO L158 Benchmark]: TraceAbstraction took 1628.50ms. Allocated memory is still 226.5MB. Free memory was 164.8MB in the beginning and 100.9MB in the end (delta: 63.9MB). Peak memory consumption was 65.0MB. Max. memory is 8.0GB. [2022-01-31 22:59:01,686 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 176.2MB. Free memory is still 138.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 279.87ms. Allocated memory was 176.2MB in the beginning and 226.5MB in the end (delta: 50.3MB). Free memory was 121.4MB in the beginning and 193.6MB in the end (delta: -72.3MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.84ms. Allocated memory is still 226.5MB. Free memory was 193.6MB in the beginning and 190.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 393.72ms. Allocated memory is still 226.5MB. Free memory was 190.5MB in the beginning and 165.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * TraceAbstraction took 1628.50ms. Allocated memory is still 226.5MB. Free memory was 164.8MB in the beginning and 100.9MB in the end (delta: 63.9MB). Peak memory consumption was 65.0MB. 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: 288]: 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 someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 287. 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; [L278] double x = __VERIFIER_nondet_double(); [L279] double y = -1.0 / 0.0; [L282] CALL, EXPR isfinite_double(x) [L262] __int32_t hx; [L264] ieee_double_shape_type gh_u; [L265] gh_u.value = (x) [L266] EXPR gh_u.parts.msw [L266] (hx) = gh_u.parts.msw [L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L282] RET, EXPR isfinite_double(x) [L282] isfinite_double(x) && isinf_double(y) [L282] CALL, EXPR isinf_double(y) [L248] __int32_t hx, lx; [L250] ieee_double_shape_type ew_u; [L251] ew_u.value = (x) [L252] EXPR ew_u.parts.msw [L252] (hx) = ew_u.parts.msw [L253] EXPR ew_u.parts.lsw [L253] (lx) = ew_u.parts.lsw [L255] hx &= 0x7fffffff [L256] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L257] hx = 0x7ff00000 - hx [L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L282] RET, EXPR isinf_double(y) [L282] isfinite_double(x) && isinf_double(y) [L282] COND TRUE isfinite_double(x) && isinf_double(y) [L284] 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; [L284] RET, EXPR __ieee754_atan2(y, x) [L284] double res = __ieee754_atan2(y, x); [L287] COND TRUE res != -pi_o_2 [L288] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 123 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 292 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 280 mSDsluCounter, 292 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 468 IncrementalHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 288 mSDtfsCounter, 468 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 2 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 22:59:01,713 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...