/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_1091.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:00:06,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:00:06,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:00:06,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 23:00:06,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:00:06,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:00:06,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:00:06,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:00:06,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:00:06,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:00:06,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:00:06,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:00:06,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:00:06,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:00:06,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:00:06,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:00:06,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 23:00:06,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:00:06,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:00:06,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:00:06,225 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 23:00:06,236 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:00:06,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:00:06,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:00:06,238 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 23:00:06,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:00:06,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 23:00:06,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:00:06,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:00:06,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:00:06,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:00:06,239 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 23:00:06,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:00:06,239 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:00:06,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:00:06,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:00:06,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:00:06,240 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:00:06,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:00:06,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:00:06,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:00:06,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:00:06,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:00:06,240 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 23:00:06,240 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:00:06,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:00:06,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:00:06,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:00:06,454 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:00:06,454 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:00:06,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1091.c [2022-01-31 23:00:06,510 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38457c8eb/06e1b06d26e64332a7aa64b5bad25d85/FLAGa44bbe317 [2022-01-31 23:00:06,863 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:00:06,864 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1091.c [2022-01-31 23:00:06,868 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38457c8eb/06e1b06d26e64332a7aa64b5bad25d85/FLAGa44bbe317 [2022-01-31 23:00:06,879 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38457c8eb/06e1b06d26e64332a7aa64b5bad25d85 [2022-01-31 23:00:06,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:00:06,881 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:00:06,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:00:06,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:00:06,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:00:06,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:00:06" (1/1) ... [2022-01-31 23:00:06,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@698ae09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:06, skipping insertion in model container [2022-01-31 23:00:06,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:00:06" (1/1) ... [2022-01-31 23:00:06,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:00:06,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:00:07,094 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_1091.c[2108,2121] [2022-01-31 23:00:07,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:00:07,101 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:00:07,136 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_1091.c[2108,2121] [2022-01-31 23:00:07,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:00:07,155 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:00:07,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:07 WrapperNode [2022-01-31 23:00:07,155 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:00:07,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:00:07,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:00:07,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:00:07,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:07" (1/1) ... [2022-01-31 23:00:07,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:07" (1/1) ... [2022-01-31 23:00:07,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:07" (1/1) ... [2022-01-31 23:00:07,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:07" (1/1) ... [2022-01-31 23:00:07,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:07" (1/1) ... [2022-01-31 23:00:07,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:07" (1/1) ... [2022-01-31 23:00:07,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:07" (1/1) ... [2022-01-31 23:00:07,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:00:07,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:00:07,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:00:07,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:00:07,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:07" (1/1) ... [2022-01-31 23:00:07,202 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:00:07,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:00:07,273 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 23:00:07,291 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 23:00:07,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:00:07,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:00:07,302 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:00:07,302 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2022-01-31 23:00:07,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2022-01-31 23:00:07,303 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:00:07,303 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:00:07,303 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:00:07,303 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:00:07,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:00:07,303 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2022-01-31 23:00:07,304 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2022-01-31 23:00:07,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 23:00:07,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 23:00:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:00:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:00:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:00:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 23:00:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:00:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:00:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:00:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:00:07,368 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:00:07,370 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:00:07,539 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:00:07,566 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:00:07,567 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-31 23:00:07,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:00:07 BoogieIcfgContainer [2022-01-31 23:00:07,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:00:07,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:00:07,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:00:07,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:00:07,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:00:06" (1/3) ... [2022-01-31 23:00:07,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e41718f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:00:07, skipping insertion in model container [2022-01-31 23:00:07,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:07" (2/3) ... [2022-01-31 23:00:07,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e41718f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:00:07, skipping insertion in model container [2022-01-31 23:00:07,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:00:07" (3/3) ... [2022-01-31 23:00:07,573 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2022-01-31 23:00:07,576 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:00:07,576 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:00:07,634 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:00:07,641 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 23:00:07,641 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:00:07,653 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 23:00:07,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-31 23:00:07,658 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:00:07,659 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 23:00:07,659 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:00:07,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:00:07,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1733860191, now seen corresponding path program 1 times [2022-01-31 23:00:07,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:00:07,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339293992] [2022-01-31 23:00:07,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:00:07,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:00:07,724 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:00:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:07,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:00:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:07,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 23:00:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:07,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-31 23:00:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:07,900 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 23:00:07,902 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:00:07,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339293992] [2022-01-31 23:00:07,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1339293992] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:00:07,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:00:07,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:00:07,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191319014] [2022-01-31 23:00:07,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:00:07,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:00:07,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:00:07,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:00:07,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:00:07,933 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 23:00:08,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:00:08,083 INFO L93 Difference]: Finished difference Result 86 states and 124 transitions. [2022-01-31 23:00:08,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:00:08,086 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 23:00:08,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:00:08,091 INFO L225 Difference]: With dead ends: 86 [2022-01-31 23:00:08,092 INFO L226 Difference]: Without dead ends: 43 [2022-01-31 23:00:08,094 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 23:00:08,102 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 23:00:08,103 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 23:00:08,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-01-31 23:00:08,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-01-31 23:00:08,136 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 23:00:08,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2022-01-31 23:00:08,139 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 23 [2022-01-31 23:00:08,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:00:08,139 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2022-01-31 23:00:08,139 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 23:00:08,140 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2022-01-31 23:00:08,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-31 23:00:08,142 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:00:08,142 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 23:00:08,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:00:08,143 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:00:08,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:00:08,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1956454764, now seen corresponding path program 1 times [2022-01-31 23:00:08,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:00:08,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227329429] [2022-01-31 23:00:08,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:00:08,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:00:08,148 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:00:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 23:00:08,200 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 23:00:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 23:00:08,263 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 23:00:08,264 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 23:00:08,267 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 23:00:08,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 23:00:08,274 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 23:00:08,276 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 23:00:08,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 11:00:08 BoogieIcfgContainer [2022-01-31 23:00:08,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 23:00:08,290 INFO L158 Benchmark]: Toolchain (without parser) took 1407.93ms. Allocated memory is still 168.8MB. Free memory was 114.1MB in the beginning and 85.1MB in the end (delta: 28.9MB). Peak memory consumption was 29.1MB. Max. memory is 8.0GB. [2022-01-31 23:00:08,290 INFO L158 Benchmark]: CDTParser took 1.16ms. Allocated memory is still 168.8MB. Free memory is still 131.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:00:08,291 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.36ms. Allocated memory is still 168.8MB. Free memory was 113.8MB in the beginning and 139.0MB in the end (delta: -25.2MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. [2022-01-31 23:00:08,292 INFO L158 Benchmark]: Boogie Preprocessor took 39.07ms. Allocated memory is still 168.8MB. Free memory was 139.0MB in the beginning and 137.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 23:00:08,293 INFO L158 Benchmark]: RCFGBuilder took 372.15ms. Allocated memory is still 168.8MB. Free memory was 137.0MB in the beginning and 123.9MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-31 23:00:08,294 INFO L158 Benchmark]: TraceAbstraction took 719.84ms. Allocated memory is still 168.8MB. Free memory was 123.4MB in the beginning and 85.1MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2022-01-31 23:00:08,298 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.16ms. Allocated memory is still 168.8MB. Free memory is still 131.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 273.36ms. Allocated memory is still 168.8MB. Free memory was 113.8MB in the beginning and 139.0MB in the end (delta: -25.2MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.07ms. Allocated memory is still 168.8MB. Free memory was 139.0MB in the beginning and 137.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 372.15ms. Allocated memory is still 168.8MB. Free memory was 137.0MB in the beginning and 123.9MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 719.84ms. Allocated memory is still 168.8MB. Free memory was 123.4MB in the beginning and 85.1MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. 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: 97]: 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 43, overapproximation of bitwiseOr at line 44, overapproximation of someBinaryArithmeticDOUBLEoperation at line 92, overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryDOUBLEComparisonOperation at line 17. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; [L92] double x = 0.0 / 0.0; [L93] CALL, EXPR ceil_double(x) [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff [L31] COND TRUE j0 < 20 [L32] COND FALSE !(j0 < 0) [L43] i = (0x000fffff) >> j0 [L44] COND TRUE ((i0 & i) | i1) == 0 [L45] return x; [L93] RET, EXPR ceil_double(x) [L93] double res = ceil_double(x); [L96] CALL, EXPR isnan_double(res) [L17] return x != x; [L96] RET, EXPR isnan_double(res) [L96] COND TRUE !isnan_double(res) [L97] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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 23:00:08,323 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...