/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/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0683b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-02-01 00:18:27,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-01 00:18:27,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-01 00:18:27,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-01 00:18:27,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-01 00:18:27,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-01 00:18:27,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-01 00:18:27,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-01 00:18:27,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-01 00:18:27,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-01 00:18:27,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-01 00:18:27,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-01 00:18:27,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-01 00:18:27,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-01 00:18:27,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-01 00:18:27,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-01 00:18:27,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-01 00:18:27,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-01 00:18:27,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-01 00:18:27,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-01 00:18:27,584 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-01 00:18:27,596 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-01 00:18:27,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-01 00:18:27,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-01 00:18:27,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-01 00:18:27,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-01 00:18:27,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-01 00:18:27,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-01 00:18:27,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-01 00:18:27,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-01 00:18:27,599 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-01 00:18:27,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-01 00:18:27,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-01 00:18:27,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-01 00:18:27,600 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-01 00:18:27,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-01 00:18:27,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:18:27,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-01 00:18:27,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-01 00:18:27,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-01 00:18:27,600 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-01 00:18:27,600 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-01 00:18:27,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-01 00:18:27,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-01 00:18:27,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-01 00:18:27,867 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-01 00:18:27,868 INFO L275 PluginConnector]: CDTParser initialized [2022-02-01 00:18:27,869 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0683b.c [2022-02-01 00:18:27,919 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddf30a92b/a3d04312499b4fd9afe0b2cf650df006/FLAGcaaa996dd [2022-02-01 00:18:28,283 INFO L306 CDTParser]: Found 1 translation units. [2022-02-01 00:18:28,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0683b.c [2022-02-01 00:18:28,289 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddf30a92b/a3d04312499b4fd9afe0b2cf650df006/FLAGcaaa996dd [2022-02-01 00:18:28,699 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddf30a92b/a3d04312499b4fd9afe0b2cf650df006 [2022-02-01 00:18:28,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-01 00:18:28,702 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-01 00:18:28,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-01 00:18:28,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-01 00:18:28,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-01 00:18:28,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:18:28" (1/1) ... [2022-02-01 00:18:28,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f9c80c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:28, skipping insertion in model container [2022-02-01 00:18:28,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:18:28" (1/1) ... [2022-02-01 00:18:28,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-01 00:18:28,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-01 00:18:28,949 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_0683b.c[7144,7157] [2022-02-01 00:18:28,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:18:28,960 INFO L203 MainTranslator]: Completed pre-run [2022-02-01 00:18:29,059 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_0683b.c[7144,7157] [2022-02-01 00:18:29,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:18:29,070 INFO L208 MainTranslator]: Completed translation [2022-02-01 00:18:29,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:29 WrapperNode [2022-02-01 00:18:29,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-01 00:18:29,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-01 00:18:29,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-01 00:18:29,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-01 00:18:29,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:29" (1/1) ... [2022-02-01 00:18:29,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:29" (1/1) ... [2022-02-01 00:18:29,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:29" (1/1) ... [2022-02-01 00:18:29,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:29" (1/1) ... [2022-02-01 00:18:29,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:29" (1/1) ... [2022-02-01 00:18:29,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:29" (1/1) ... [2022-02-01 00:18:29,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:29" (1/1) ... [2022-02-01 00:18:29,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-01 00:18:29,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-01 00:18:29,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-01 00:18:29,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-01 00:18:29,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:29" (1/1) ... [2022-02-01 00:18:29,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:18:29,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-01 00:18:29,248 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) [2022-02-01 00:18:29,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-01 00:18:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-01 00:18:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-01 00:18:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-01 00:18:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-02-01 00:18:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-02-01 00:18:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2022-02-01 00:18:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2022-02-01 00:18:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2022-02-01 00:18:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2022-02-01 00:18:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-01 00:18:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-01 00:18:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-01 00:18:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-01 00:18:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-01 00:18:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2022-02-01 00:18:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-02-01 00:18:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-01 00:18:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-02-01 00:18:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-01 00:18:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-01 00:18:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-01 00:18:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-02-01 00:18:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-02-01 00:18:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2022-02-01 00:18:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2022-02-01 00:18:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2022-02-01 00:18:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2022-02-01 00:18:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-01 00:18:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-01 00:18:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-01 00:18:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-02-01 00:18:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-01 00:18:29,409 INFO L234 CfgBuilder]: Building ICFG [2022-02-01 00:18:29,410 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-01 00:18:29,709 INFO L275 CfgBuilder]: Performing block encoding [2022-02-01 00:18:29,715 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-01 00:18:29,715 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2022-02-01 00:18:29,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:18:29 BoogieIcfgContainer [2022-02-01 00:18:29,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-01 00:18:29,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-01 00:18:29,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-01 00:18:29,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-01 00:18:29,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.02 12:18:28" (1/3) ... [2022-02-01 00:18:29,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e33cf58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:18:29, skipping insertion in model container [2022-02-01 00:18:29,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:29" (2/3) ... [2022-02-01 00:18:29,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e33cf58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:18:29, skipping insertion in model container [2022-02-01 00:18:29,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:18:29" (3/3) ... [2022-02-01 00:18:29,727 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683b.c [2022-02-01 00:18:29,731 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-01 00:18:29,731 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-01 00:18:29,774 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-01 00:18:29,779 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=QVASR [2022-02-01 00:18:29,779 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-01 00:18:29,799 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 109 states have (on average 1.5963302752293578) internal successors, (174), 110 states have internal predecessors, (174), 10 states have call successors, (10), 8 states have call predecessors, (10), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-02-01 00:18:29,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-02-01 00:18:29,808 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:18:29,808 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] [2022-02-01 00:18:29,809 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:18:29,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:18:29,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1657846494, now seen corresponding path program 1 times [2022-02-01 00:18:29,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:18:29,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881796389] [2022-02-01 00:18:29,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:18:29,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:18:29,873 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:18:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:30,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:18:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:30,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-01 00:18:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:30,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-01 00:18:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:30,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:18:30,119 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:18:30,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881796389] [2022-02-01 00:18:30,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1881796389] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:18:30,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:18:30,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:18:30,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025947641] [2022-02-01 00:18:30,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:18:30,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:18:30,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:18:30,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:18:30,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:18:30,145 INFO L87 Difference]: Start difference. First operand has 129 states, 109 states have (on average 1.5963302752293578) internal successors, (174), 110 states have internal predecessors, (174), 10 states have call successors, (10), 8 states have call predecessors, (10), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 2 states have internal predecessors, (21), 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) [2022-02-01 00:18:30,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:18:30,572 INFO L93 Difference]: Finished difference Result 250 states and 387 transitions. [2022-02-01 00:18:30,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:18:30,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 2 states have internal predecessors, (21), 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 28 [2022-02-01 00:18:30,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:18:30,579 INFO L225 Difference]: With dead ends: 250 [2022-02-01 00:18:30,580 INFO L226 Difference]: Without dead ends: 124 [2022-02-01 00:18:30,582 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 [2022-02-01 00:18:30,584 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 150 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:18:30,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 157 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-01 00:18:30,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-02-01 00:18:30,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-02-01 00:18:30,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 106 states have (on average 1.3773584905660377) internal successors, (146), 106 states have internal predecessors, (146), 10 states have call successors, (10), 8 states have call predecessors, (10), 7 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-02-01 00:18:30,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 165 transitions. [2022-02-01 00:18:30,624 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 165 transitions. Word has length 28 [2022-02-01 00:18:30,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:18:30,624 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 165 transitions. [2022-02-01 00:18:30,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 2 states have internal predecessors, (21), 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) [2022-02-01 00:18:30,624 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 165 transitions. [2022-02-01 00:18:30,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-02-01 00:18:30,625 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:18:30,625 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] [2022-02-01 00:18:30,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-01 00:18:30,626 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:18:30,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:18:30,626 INFO L85 PathProgramCache]: Analyzing trace with hash 709043947, now seen corresponding path program 1 times [2022-02-01 00:18:30,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:18:30,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [739935934] [2022-02-01 00:18:30,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:18:30,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:18:30,629 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:18:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:30,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:18:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:30,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-01 00:18:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:30,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-02-01 00:18:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:30,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:18:30,770 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:18:30,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [739935934] [2022-02-01 00:18:30,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [739935934] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:18:30,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:18:30,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:18:30,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568694188] [2022-02-01 00:18:30,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:18:30,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:18:30,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:18:30,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:18:30,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:18:30,772 INFO L87 Difference]: Start difference. First operand 124 states and 165 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-02-01 00:18:31,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:18:31,105 INFO L93 Difference]: Finished difference Result 225 states and 306 transitions. [2022-02-01 00:18:31,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-01 00:18:31,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2022-02-01 00:18:31,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:18:31,107 INFO L225 Difference]: With dead ends: 225 [2022-02-01 00:18:31,108 INFO L226 Difference]: Without dead ends: 124 [2022-02-01 00:18:31,108 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 [2022-02-01 00:18:31,109 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 146 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:18:31,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 151 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-01 00:18:31,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-02-01 00:18:31,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-02-01 00:18:31,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 106 states have (on average 1.3679245283018868) internal successors, (145), 106 states have internal predecessors, (145), 10 states have call successors, (10), 8 states have call predecessors, (10), 7 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-02-01 00:18:31,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 164 transitions. [2022-02-01 00:18:31,125 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 164 transitions. Word has length 31 [2022-02-01 00:18:31,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:18:31,125 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 164 transitions. [2022-02-01 00:18:31,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-02-01 00:18:31,125 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 164 transitions. [2022-02-01 00:18:31,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-01 00:18:31,126 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:18:31,126 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, 1] [2022-02-01 00:18:31,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-01 00:18:31,126 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:18:31,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:18:31,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1383023855, now seen corresponding path program 1 times [2022-02-01 00:18:31,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:18:31,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1404521220] [2022-02-01 00:18:31,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:18:31,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:18:31,129 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:18:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:18:31,198 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-01 00:18:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:18:31,265 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-02-01 00:18:31,265 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-01 00:18:31,267 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-01 00:18:31,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-01 00:18:31,270 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-01 00:18:31,272 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-01 00:18:31,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.02 12:18:31 BoogieIcfgContainer [2022-02-01 00:18:31,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-01 00:18:31,282 INFO L158 Benchmark]: Toolchain (without parser) took 2579.40ms. Allocated memory is still 202.4MB. Free memory was 149.5MB in the beginning and 73.5MB in the end (delta: 76.0MB). Peak memory consumption was 76.8MB. Max. memory is 8.0GB. [2022-02-01 00:18:31,282 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 202.4MB. Free memory was 166.8MB in the beginning and 166.7MB in the end (delta: 73.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-01 00:18:31,282 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.12ms. Allocated memory is still 202.4MB. Free memory was 149.3MB in the beginning and 171.2MB in the end (delta: -21.9MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. [2022-02-01 00:18:31,283 INFO L158 Benchmark]: Boogie Preprocessor took 132.58ms. Allocated memory is still 202.4MB. Free memory was 171.2MB in the beginning and 167.9MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-01 00:18:31,283 INFO L158 Benchmark]: RCFGBuilder took 511.93ms. Allocated memory is still 202.4MB. Free memory was 167.9MB in the beginning and 141.4MB in the end (delta: 26.5MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-02-01 00:18:31,283 INFO L158 Benchmark]: TraceAbstraction took 1564.23ms. Allocated memory is still 202.4MB. Free memory was 140.8MB in the beginning and 73.5MB in the end (delta: 67.3MB). Peak memory consumption was 68.3MB. Max. memory is 8.0GB. [2022-02-01 00:18:31,284 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 202.4MB. Free memory was 166.8MB in the beginning and 166.7MB in the end (delta: 73.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 364.12ms. Allocated memory is still 202.4MB. Free memory was 149.3MB in the beginning and 171.2MB in the end (delta: -21.9MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 132.58ms. Allocated memory is still 202.4MB. Free memory was 171.2MB in the beginning and 167.9MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 511.93ms. Allocated memory is still 202.4MB. Free memory was 167.9MB in the beginning and 141.4MB in the end (delta: 26.5MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * TraceAbstraction took 1564.23ms. Allocated memory is still 202.4MB. Free memory was 140.8MB in the beginning and 73.5MB in the end (delta: 67.3MB). Peak memory consumption was 68.3MB. 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: 300]: 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 299. 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; [L291] double x = 1.0 / 0.0; [L292] double y = __VERIFIER_nondet_double(); [L294] CALL, EXPR isinf_double(x) [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); [L294] RET, EXPR isinf_double(x) [L294] EXPR isinf_double(x) && isfinite_double(y) [L294] CALL, EXPR isfinite_double(y) [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); [L294] RET, EXPR isfinite_double(y) [L294] EXPR isinf_double(x) && isfinite_double(y) [L294] COND TRUE isinf_double(x) && isfinite_double(y) && y > 0.0 [L296] 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; [L296] RET, EXPR __ieee754_atan2(y, x) [L296] double res = __ieee754_atan2(y, x); [L299] EXPR res == 0.0 && __signbit_double(res) == 0 [L299] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L300] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 132 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 310 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 296 mSDsluCounter, 308 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 498 IncrementalHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 304 mSDtfsCounter, 498 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=129occurred 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: 0.0s 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 [2022-02-01 00:18:31,313 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...