/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_1031.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 22:59:47,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 22:59:47,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 22:59:47,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 22:59:47,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 22:59:47,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 22:59:47,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 22:59:47,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 22:59:47,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 22:59:47,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 22:59:47,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 22:59:47,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 22:59:47,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 22:59:47,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 22:59:47,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 22:59:47,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 22:59:47,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 22:59:47,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 22:59:47,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 22:59:47,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 22:59:47,675 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 22:59:47,683 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 22:59:47,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 22:59:47,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 22:59:47,685 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 22:59:47,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 22:59:47,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 22:59:47,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 22:59:47,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 22:59:47,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 22:59:47,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 22:59:47,686 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 22:59:47,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 22:59:47,686 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 22:59:47,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 22:59:47,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 22:59:47,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 22:59:47,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 22:59:47,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 22:59:47,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:59:47,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 22:59:47,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 22:59:47,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 22:59:47,687 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 22:59:47,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 22:59:47,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 22:59:47,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 22:59:47,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 22:59:47,884 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 22:59:47,884 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 22:59:47,885 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1031.c [2022-01-31 22:59:47,936 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d372b2d78/2bfa6040773b4ba99abc3f84efdee803/FLAG157685b1a [2022-01-31 22:59:48,272 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 22:59:48,272 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1031.c [2022-01-31 22:59:48,278 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d372b2d78/2bfa6040773b4ba99abc3f84efdee803/FLAG157685b1a [2022-01-31 22:59:48,697 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d372b2d78/2bfa6040773b4ba99abc3f84efdee803 [2022-01-31 22:59:48,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 22:59:48,699 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 22:59:48,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 22:59:48,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 22:59:48,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 22:59:48,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:59:48" (1/1) ... [2022-01-31 22:59:48,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a991da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:48, skipping insertion in model container [2022-01-31 22:59:48,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:59:48" (1/1) ... [2022-01-31 22:59:48,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 22:59:48,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 22:59:48,884 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_1031.c[2057,2070] [2022-01-31 22:59:48,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:59:48,890 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 22:59:48,913 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_1031.c[2057,2070] [2022-01-31 22:59:48,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:59:48,930 INFO L208 MainTranslator]: Completed translation [2022-01-31 22:59:48,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:48 WrapperNode [2022-01-31 22:59:48,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 22:59:48,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 22:59:48,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 22:59:48,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 22:59:48,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:48" (1/1) ... [2022-01-31 22:59:48,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:48" (1/1) ... [2022-01-31 22:59:48,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:48" (1/1) ... [2022-01-31 22:59:48,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:48" (1/1) ... [2022-01-31 22:59:48,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:48" (1/1) ... [2022-01-31 22:59:48,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:48" (1/1) ... [2022-01-31 22:59:48,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:48" (1/1) ... [2022-01-31 22:59:48,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 22:59:48,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 22:59:48,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 22:59:48,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 22:59:48,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:48" (1/1) ... [2022-01-31 22:59:48,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:59:48,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 22:59:48,976 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 22:59:48,995 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 22:59:49,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 22:59:49,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 22:59:49,021 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 22:59:49,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2022-01-31 22:59:49,021 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2022-01-31 22:59:49,021 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 22:59:49,021 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 22:59:49,021 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 22:59:49,021 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 22:59:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 22:59:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2022-01-31 22:59:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2022-01-31 22:59:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 22:59:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 22:59:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 22:59:49,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 22:59:49,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 22:59:49,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 22:59:49,025 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 22:59:49,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 22:59:49,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 22:59:49,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 22:59:49,073 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 22:59:49,074 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 22:59:49,263 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 22:59:49,267 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 22:59:49,267 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-31 22:59:49,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:59:49 BoogieIcfgContainer [2022-01-31 22:59:49,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 22:59:49,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 22:59:49,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 22:59:49,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 22:59:49,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:59:48" (1/3) ... [2022-01-31 22:59:49,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b0e61ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:59:49, skipping insertion in model container [2022-01-31 22:59:49,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:48" (2/3) ... [2022-01-31 22:59:49,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b0e61ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:59:49, skipping insertion in model container [2022-01-31 22:59:49,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:59:49" (3/3) ... [2022-01-31 22:59:49,287 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1031.c [2022-01-31 22:59:49,290 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 22:59:49,291 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 22:59:49,318 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 22:59:49,322 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 22:59:49,322 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 22:59:49,331 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 30 states have internal predecessors, (43), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 22:59:49,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-31 22:59:49,336 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:59:49,337 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] [2022-01-31 22:59:49,338 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:59:49,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:59:49,341 INFO L85 PathProgramCache]: Analyzing trace with hash 696359726, now seen corresponding path program 1 times [2022-01-31 22:59:49,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:59:49,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1053424487] [2022-01-31 22:59:49,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:59:49,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:59:49,419 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:59:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:49,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:59:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:49,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 22:59:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:49,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-31 22:59:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:49,608 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 22:59:49,609 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:59:49,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1053424487] [2022-01-31 22:59:49,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1053424487] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:59:49,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:59:49,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:59:49,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910549436] [2022-01-31 22:59:49,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:59:49,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:59:49,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:59:49,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:59:49,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:59:49,640 INFO L87 Difference]: Start difference. First operand has 39 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 30 states have internal predecessors, (43), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 2 states have internal predecessors, (16), 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 22:59:49,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:59:49,768 INFO L93 Difference]: Finished difference Result 70 states and 94 transitions. [2022-01-31 22:59:49,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:59:49,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 2 states have internal predecessors, (16), 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 23 [2022-01-31 22:59:49,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:59:49,779 INFO L225 Difference]: With dead ends: 70 [2022-01-31 22:59:49,779 INFO L226 Difference]: Without dead ends: 35 [2022-01-31 22:59:49,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:59:49,785 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 39 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:59:49,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 44 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 22:59:49,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-01-31 22:59:49,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-01-31 22:59:49,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 22:59:49,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2022-01-31 22:59:49,818 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 23 [2022-01-31 22:59:49,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:59:49,819 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2022-01-31 22:59:49,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 2 states have internal predecessors, (16), 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 22:59:49,819 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-01-31 22:59:49,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-31 22:59:49,820 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:59:49,820 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] [2022-01-31 22:59:49,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 22:59:49,821 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:59:49,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:59:49,822 INFO L85 PathProgramCache]: Analyzing trace with hash -862054097, now seen corresponding path program 1 times [2022-01-31 22:59:49,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:59:49,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1238962703] [2022-01-31 22:59:49,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:59:49,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:59:49,828 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:59:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:59:49,870 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 22:59:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:59:49,912 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 22:59:49,912 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 22:59:49,917 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 22:59:49,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 22:59:49,923 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 22:59:49,924 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 22:59:49,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 10:59:49 BoogieIcfgContainer [2022-01-31 22:59:49,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 22:59:49,937 INFO L158 Benchmark]: Toolchain (without parser) took 1237.66ms. Allocated memory is still 175.1MB. Free memory was 127.2MB in the beginning and 102.3MB in the end (delta: 24.9MB). Peak memory consumption was 24.5MB. Max. memory is 8.0GB. [2022-01-31 22:59:49,937 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 175.1MB. Free memory is still 143.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 22:59:49,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.88ms. Allocated memory is still 175.1MB. Free memory was 127.1MB in the beginning and 152.6MB in the end (delta: -25.6MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2022-01-31 22:59:49,940 INFO L158 Benchmark]: Boogie Preprocessor took 23.87ms. Allocated memory is still 175.1MB. Free memory was 152.6MB in the beginning and 151.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 22:59:49,940 INFO L158 Benchmark]: RCFGBuilder took 312.79ms. Allocated memory is still 175.1MB. Free memory was 151.1MB in the beginning and 137.9MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-31 22:59:49,942 INFO L158 Benchmark]: TraceAbstraction took 667.34ms. Allocated memory is still 175.1MB. Free memory was 137.4MB in the beginning and 102.3MB in the end (delta: 35.1MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2022-01-31 22:59:49,946 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 175.1MB. Free memory is still 143.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 227.88ms. Allocated memory is still 175.1MB. Free memory was 127.1MB in the beginning and 152.6MB in the end (delta: -25.6MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.87ms. Allocated memory is still 175.1MB. Free memory was 152.6MB in the beginning and 151.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 312.79ms. Allocated memory is still 175.1MB. Free memory was 151.1MB in the beginning and 137.9MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 667.34ms. Allocated memory is still 175.1MB. Free memory was 137.4MB in the beginning and 102.3MB in the end (delta: 35.1MB). Peak memory consumption was 34.6MB. 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: 81]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of shiftRight at line 36, overapproximation of someBinaryArithmeticDOUBLEoperation at line 76, overapproximation of bitwiseAnd at line 37, overapproximation of someBinaryDOUBLEComparisonOperation at line 17. Possible FailurePath: [L76] double x = 0.0 / 0.0; [L77] CALL, EXPR round_double(x) [L20] __int32_t msw, exponent_less_1023; [L21] __uint32_t lsw; [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (msw) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lsw) = ew_u.parts.lsw [L28] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L29] COND TRUE exponent_less_1023 < 20 [L30] COND FALSE !(exponent_less_1023 < 0) [L36] __uint32_t exponent_mask = 0x000fffff >> exponent_less_1023; [L37] COND TRUE (msw & exponent_mask) == 0 && lsw == 0 [L38] return x; [L77] RET, EXPR round_double(x) [L77] double res = round_double(x); [L80] CALL, EXPR isnan_double(res) [L17] return x != x; [L80] RET, EXPR isnan_double(res) [L80] COND TRUE !isnan_double(res) [L81] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 42 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-01-31 22:59:49,977 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...