/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_1051.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 22:59:52,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 22:59:52,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 22:59:52,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 22:59:52,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 22:59:52,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 22:59:52,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 22:59:52,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 22:59:52,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 22:59:52,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 22:59:52,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 22:59:52,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 22:59:52,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 22:59:52,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 22:59:52,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 22:59:52,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 22:59:52,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 22:59:52,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 22:59:52,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 22:59:52,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 22:59:52,560 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 22:59:52,568 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 22:59:52,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 22:59:52,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 22:59:52,570 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 22:59:52,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 22:59:52,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 22:59:52,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 22:59:52,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 22:59:52,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 22:59:52,570 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 22:59:52,571 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 22:59:52,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 22:59:52,571 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 22:59:52,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 22:59:52,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 22:59:52,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 22:59:52,571 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 22:59:52,571 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 22:59:52,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:59:52,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 22:59:52,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 22:59:52,572 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 22:59:52,572 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 22:59:52,572 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 22:59:52,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 22:59:52,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 22:59:52,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 22:59:52,798 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 22:59:52,798 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 22:59:52,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2022-01-31 22:59:52,854 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ab1f4d52/28e8e629d8734a0e92b709748767050e/FLAG091d83423 [2022-01-31 22:59:53,167 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 22:59:53,167 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2022-01-31 22:59:53,175 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ab1f4d52/28e8e629d8734a0e92b709748767050e/FLAG091d83423 [2022-01-31 22:59:53,584 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ab1f4d52/28e8e629d8734a0e92b709748767050e [2022-01-31 22:59:53,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 22:59:53,587 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 22:59:53,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 22:59:53,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 22:59:53,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 22:59:53,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:59:53" (1/1) ... [2022-01-31 22:59:53,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8f93bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:53, skipping insertion in model container [2022-01-31 22:59:53,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:59:53" (1/1) ... [2022-01-31 22:59:53,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 22:59:53,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 22:59:53,785 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_1051.c[2106,2119] [2022-01-31 22:59:53,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:59:53,791 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 22:59:53,824 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_1051.c[2106,2119] [2022-01-31 22:59:53,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:59:53,832 INFO L208 MainTranslator]: Completed translation [2022-01-31 22:59:53,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:53 WrapperNode [2022-01-31 22:59:53,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 22:59:53,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 22:59:53,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 22:59:53,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 22:59:53,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:53" (1/1) ... [2022-01-31 22:59:53,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:53" (1/1) ... [2022-01-31 22:59:53,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:53" (1/1) ... [2022-01-31 22:59:53,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:53" (1/1) ... [2022-01-31 22:59:53,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:53" (1/1) ... [2022-01-31 22:59:53,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:53" (1/1) ... [2022-01-31 22:59:53,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:53" (1/1) ... [2022-01-31 22:59:53,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 22:59:53,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 22:59:53,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 22:59:53,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 22:59:53,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:53" (1/1) ... [2022-01-31 22:59:53,886 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:59:53,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 22:59:53,937 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 22:59:53,943 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 22:59:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 22:59:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 22:59:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 22:59:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2022-01-31 22:59:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2022-01-31 22:59:53,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 22:59:53,969 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 22:59:53,969 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 22:59:53,969 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 22:59:53,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 22:59:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2022-01-31 22:59:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 22:59:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 22:59:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 22:59:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 22:59:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 22:59:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 22:59:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2022-01-31 22:59:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 22:59:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 22:59:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 22:59:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 22:59:54,052 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 22:59:54,057 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 22:59:54,255 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 22:59:54,261 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 22:59:54,261 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-31 22:59:54,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:59:54 BoogieIcfgContainer [2022-01-31 22:59:54,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 22:59:54,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 22:59:54,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 22:59:54,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 22:59:54,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:59:53" (1/3) ... [2022-01-31 22:59:54,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f06d150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:59:54, skipping insertion in model container [2022-01-31 22:59:54,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:53" (2/3) ... [2022-01-31 22:59:54,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f06d150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:59:54, skipping insertion in model container [2022-01-31 22:59:54,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:59:54" (3/3) ... [2022-01-31 22:59:54,269 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2022-01-31 22:59:54,273 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 22:59:54,273 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 22:59:54,310 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 22:59:54,316 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 22:59:54,316 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 22:59:54,327 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 38 states have internal predecessors, (58), 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 22:59:54,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-31 22:59:54,336 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:59:54,336 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 22:59:54,337 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:59:54,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:59:54,340 INFO L85 PathProgramCache]: Analyzing trace with hash -763354016, now seen corresponding path program 1 times [2022-01-31 22:59:54,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:59:54,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187732102] [2022-01-31 22:59:54,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:59:54,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:59:54,393 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:59:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:54,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:59:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:54,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 22:59:54,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:54,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-31 22:59:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:54,541 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 22:59:54,542 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:59:54,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187732102] [2022-01-31 22:59:54,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [187732102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:59:54,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:59:54,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:59:54,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641273546] [2022-01-31 22:59:54,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:59:54,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:59:54,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:59:54,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:59:54,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:59:54,575 INFO L87 Difference]: Start difference. First operand has 47 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 38 states have internal predecessors, (58), 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 22:59:54,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:59:54,705 INFO L93 Difference]: Finished difference Result 86 states and 124 transitions. [2022-01-31 22:59:54,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:59:54,707 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 22:59:54,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:59:54,727 INFO L225 Difference]: With dead ends: 86 [2022-01-31 22:59:54,728 INFO L226 Difference]: Without dead ends: 43 [2022-01-31 22:59:54,730 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 22:59:54,731 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 54 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:59:54,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 59 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 22:59:54,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-01-31 22:59:54,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-01-31 22:59:54,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 35 states have internal predecessors, (50), 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 22:59:54,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2022-01-31 22:59:54,779 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 23 [2022-01-31 22:59:54,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:59:54,780 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2022-01-31 22:59:54,780 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 22:59:54,780 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2022-01-31 22:59:54,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-31 22:59:54,781 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:59:54,781 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 22:59:54,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 22:59:54,781 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:59:54,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:59:54,782 INFO L85 PathProgramCache]: Analyzing trace with hash -934495617, now seen corresponding path program 1 times [2022-01-31 22:59:54,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:59:54,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [176899576] [2022-01-31 22:59:54,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:59:54,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:59:54,784 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:59:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:59:54,837 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 22:59:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:59:54,897 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 22:59:54,898 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 22:59:54,902 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 22:59:54,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 22:59:54,909 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 22:59:54,911 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 22:59:54,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 10:59:54 BoogieIcfgContainer [2022-01-31 22:59:54,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 22:59:54,926 INFO L158 Benchmark]: Toolchain (without parser) took 1339.24ms. Allocated memory is still 174.1MB. Free memory was 119.5MB in the beginning and 91.1MB in the end (delta: 28.4MB). Peak memory consumption was 28.9MB. Max. memory is 8.0GB. [2022-01-31 22:59:54,927 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 174.1MB. Free memory was 136.3MB in the beginning and 136.3MB in the end (delta: 65.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 22:59:54,927 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.70ms. Allocated memory is still 174.1MB. Free memory was 119.3MB in the beginning and 145.1MB in the end (delta: -25.8MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. [2022-01-31 22:59:54,929 INFO L158 Benchmark]: Boogie Preprocessor took 46.61ms. Allocated memory is still 174.1MB. Free memory was 145.1MB in the beginning and 143.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 22:59:54,930 INFO L158 Benchmark]: RCFGBuilder took 381.86ms. Allocated memory is still 174.1MB. Free memory was 143.0MB in the beginning and 129.9MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-01-31 22:59:54,932 INFO L158 Benchmark]: TraceAbstraction took 662.14ms. Allocated memory is still 174.1MB. Free memory was 129.4MB in the beginning and 91.1MB in the end (delta: 38.3MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2022-01-31 22:59:54,936 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 174.1MB. Free memory was 136.3MB in the beginning and 136.3MB in the end (delta: 65.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 242.70ms. Allocated memory is still 174.1MB. Free memory was 119.3MB in the beginning and 145.1MB in the end (delta: -25.8MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.61ms. Allocated memory is still 174.1MB. Free memory was 145.1MB in the beginning and 143.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 381.86ms. Allocated memory is still 174.1MB. Free memory was 143.0MB in the beginning and 129.9MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 662.14ms. Allocated memory is still 174.1MB. Free memory was 129.4MB in the beginning and 91.1MB in the end (delta: 38.3MB). Peak memory consumption was 38.8MB. 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: 95]: 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 39, overapproximation of bitwiseOr at line 40, overapproximation of someBinaryArithmeticDOUBLEoperation at line 90, overapproximation of bitwiseAnd at line 27, overapproximation of someBinaryDOUBLEComparisonOperation at line 82. Possible FailurePath: [L16] static const double huge_floor = 1.0e300; [L90] double x = 0.0 / 0.0; [L91] CALL, EXPR floor_double(x) [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff [L28] COND TRUE j0 < 20 [L29] COND FALSE !(j0 < 0) [L39] i = (0x000fffff) >> j0 [L40] COND TRUE ((i0 & i) | i1) == 0 [L41] return x; [L91] RET, EXPR floor_double(x) [L91] double res = floor_double(x); [L94] CALL, EXPR isnan_double(res) [L82] return x != x; [L94] RET, EXPR isnan_double(res) [L94] COND TRUE !isnan_double(res) [L95] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 50 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, 55 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 59 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 57 mSDtfsCounter, 58 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=47occurred 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 22:59:54,983 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...