/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_1122a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:00:15,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:00:15,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:00:15,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 23:00:15,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:00:15,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:00:15,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:00:15,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:00:15,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:00:15,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:00:15,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:00:16,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:00:16,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:00:16,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:00:16,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:00:16,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:00:16,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 23:00:16,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:00:16,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:00:16,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:00:16,018 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 23:00:16,024 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:00:16,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:00:16,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:00:16,025 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 23:00:16,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:00:16,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 23:00:16,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:00:16,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:00:16,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:00:16,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:00:16,026 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 23:00:16,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:00:16,026 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:00:16,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:00:16,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:00:16,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:00:16,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:00:16,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:00:16,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:00:16,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:00:16,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:00:16,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:00:16,028 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 23:00:16,028 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:00:16,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:00:16,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:00:16,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:00:16,253 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:00:16,254 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:00:16,255 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122a.c [2022-01-31 23:00:16,294 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/740405e1f/a5dd1bc2604d4bf9aea7270f948e5a41/FLAG9d00f6e3a [2022-01-31 23:00:16,660 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:00:16,661 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1122a.c [2022-01-31 23:00:16,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/740405e1f/a5dd1bc2604d4bf9aea7270f948e5a41/FLAG9d00f6e3a [2022-01-31 23:00:16,676 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/740405e1f/a5dd1bc2604d4bf9aea7270f948e5a41 [2022-01-31 23:00:16,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:00:16,680 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:00:16,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:00:16,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:00:16,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:00:16,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:00:16" (1/1) ... [2022-01-31 23:00:16,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18748a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:16, skipping insertion in model container [2022-01-31 23:00:16,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:00:16" (1/1) ... [2022-01-31 23:00:16,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:00:16,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:00:16,866 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_1122a.c[3905,3918] [2022-01-31 23:00:16,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:00:16,872 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:00:16,898 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_1122a.c[3905,3918] [2022-01-31 23:00:16,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:00:16,908 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:00:16,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:16 WrapperNode [2022-01-31 23:00:16,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:00:16,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:00:16,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:00:16,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:00:16,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:16" (1/1) ... [2022-01-31 23:00:16,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:16" (1/1) ... [2022-01-31 23:00:16,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:16" (1/1) ... [2022-01-31 23:00:16,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:16" (1/1) ... [2022-01-31 23:00:16,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:16" (1/1) ... [2022-01-31 23:00:16,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:16" (1/1) ... [2022-01-31 23:00:16,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:16" (1/1) ... [2022-01-31 23:00:16,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:00:16,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:00:16,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:00:16,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:00:16,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:16" (1/1) ... [2022-01-31 23:00:16,955 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:00:16,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:00:16,973 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 23:00:16,981 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 23:00:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:00:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:00:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:00:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2022-01-31 23:00:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2022-01-31 23:00:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:00:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:00:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:00:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:00:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:00:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2022-01-31 23:00:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2022-01-31 23:00:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2022-01-31 23:00:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 23:00:17,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 23:00:17,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:00:17,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:00:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 23:00:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:00:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:00:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:00:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:00:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-01-31 23:00:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:00:17,076 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:00:17,083 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:00:17,350 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:00:17,354 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:00:17,354 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-01-31 23:00:17,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:00:17 BoogieIcfgContainer [2022-01-31 23:00:17,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:00:17,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:00:17,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:00:17,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:00:17,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:00:16" (1/3) ... [2022-01-31 23:00:17,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6644fb08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:00:17, skipping insertion in model container [2022-01-31 23:00:17,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:16" (2/3) ... [2022-01-31 23:00:17,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6644fb08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:00:17, skipping insertion in model container [2022-01-31 23:00:17,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:00:17" (3/3) ... [2022-01-31 23:00:17,361 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122a.c [2022-01-31 23:00:17,364 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:00:17,364 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:00:17,391 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:00:17,395 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 23:00:17,395 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:00:17,404 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 58 states have (on average 1.7413793103448276) internal successors, (101), 59 states have internal predecessors, (101), 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 23:00:17,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-31 23:00:17,410 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:00:17,410 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:00:17,410 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:00:17,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:00:17,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1002246117, now seen corresponding path program 1 times [2022-01-31 23:00:17,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:00:17,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625156400] [2022-01-31 23:00:17,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:00:17,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:00:17,468 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:00:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:17,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:00:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:17,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 23:00:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:17,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 23:00:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:17,658 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 23:00:17,659 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:00:17,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625156400] [2022-01-31 23:00:17,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1625156400] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:00:17,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:00:17,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:00:17,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17723950] [2022-01-31 23:00:17,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:00:17,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:00:17,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:00:17,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:00:17,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:00:17,695 INFO L87 Difference]: Start difference. First operand has 68 states, 58 states have (on average 1.7413793103448276) internal successors, (101), 59 states have internal predecessors, (101), 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 3.75) internal successors, (15), 2 states have internal predecessors, (15), 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 23:00:17,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:00:17,927 INFO L93 Difference]: Finished difference Result 128 states and 210 transitions. [2022-01-31 23:00:17,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:00:17,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 2 states have internal predecessors, (15), 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 22 [2022-01-31 23:00:17,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:00:17,936 INFO L225 Difference]: With dead ends: 128 [2022-01-31 23:00:17,936 INFO L226 Difference]: Without dead ends: 64 [2022-01-31 23:00:17,939 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 23:00:17,942 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 87 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:00:17,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 89 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:00:17,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-01-31 23:00:17,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-01-31 23:00:17,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 56 states have internal predecessors, (83), 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 23:00:17,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 90 transitions. [2022-01-31 23:00:17,980 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 90 transitions. Word has length 22 [2022-01-31 23:00:17,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:00:17,980 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 90 transitions. [2022-01-31 23:00:17,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 2 states have internal predecessors, (15), 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 23:00:17,981 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2022-01-31 23:00:17,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-31 23:00:17,982 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:00:17,982 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 23:00:17,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:00:17,983 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:00:17,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:00:17,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1368729192, now seen corresponding path program 1 times [2022-01-31 23:00:17,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:00:17,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000364931] [2022-01-31 23:00:17,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:00:17,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:00:17,987 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:00:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 23:00:18,046 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 23:00:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 23:00:18,102 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 23:00:18,103 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 23:00:18,106 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 23:00:18,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 23:00:18,109 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 23:00:18,111 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 23:00:18,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 11:00:18 BoogieIcfgContainer [2022-01-31 23:00:18,120 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 23:00:18,120 INFO L158 Benchmark]: Toolchain (without parser) took 1440.53ms. Allocated memory is still 189.8MB. Free memory was 141.5MB in the beginning and 94.4MB in the end (delta: 47.1MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. [2022-01-31 23:00:18,121 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 189.8MB. Free memory is still 157.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:00:18,121 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.51ms. Allocated memory is still 189.8MB. Free memory was 141.2MB in the beginning and 163.5MB in the end (delta: -22.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-31 23:00:18,121 INFO L158 Benchmark]: Boogie Preprocessor took 31.36ms. Allocated memory is still 189.8MB. Free memory was 163.5MB in the beginning and 161.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 23:00:18,122 INFO L158 Benchmark]: RCFGBuilder took 415.12ms. Allocated memory is still 189.8MB. Free memory was 161.5MB in the beginning and 142.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-01-31 23:00:18,122 INFO L158 Benchmark]: TraceAbstraction took 763.21ms. Allocated memory is still 189.8MB. Free memory was 141.6MB in the beginning and 94.4MB in the end (delta: 47.2MB). Peak memory consumption was 47.2MB. Max. memory is 8.0GB. [2022-01-31 23:00:18,124 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 189.8MB. Free memory is still 157.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 226.51ms. Allocated memory is still 189.8MB. Free memory was 141.2MB in the beginning and 163.5MB in the end (delta: -22.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.36ms. Allocated memory is still 189.8MB. Free memory was 163.5MB in the beginning and 161.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 415.12ms. Allocated memory is still 189.8MB. Free memory was 161.5MB in the beginning and 142.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 763.21ms. Allocated memory is still 189.8MB. Free memory was 141.6MB in the beginning and 94.4MB in the end (delta: 47.2MB). Peak memory consumption was 47.2MB. 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: 178]: 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 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L172] double x = 1.0 / 0.0; [L173] double y = __VERIFIER_nondet_double(); [L174] CALL, EXPR fmod_double(x, y) [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); [L174] RET, EXPR fmod_double(x, y) [L174] double res = fmod_double(x, y); [L177] CALL, EXPR isnan_double(res) [L18] return x != x; [L177] RET, EXPR isnan_double(res) [L177] COND TRUE !isnan_double(res) [L178] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 89 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 87 mSDtfsCounter, 94 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=68occurred 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 23:00:18,158 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...