/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_0680a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 22:58:46,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 22:58:46,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 22:58:46,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 22:58:46,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 22:58:46,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 22:58:46,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 22:58:46,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 22:58:46,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 22:58:46,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 22:58:46,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 22:58:46,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 22:58:46,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 22:58:46,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 22:58:46,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 22:58:46,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 22:58:46,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 22:58:46,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 22:58:46,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 22:58:46,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 22:58:46,288 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 22:58:46,297 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 22:58:46,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 22:58:46,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 22:58:46,298 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 22:58:46,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 22:58:46,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 22:58:46,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 22:58:46,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 22:58:46,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 22:58:46,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 22:58:46,299 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 22:58:46,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 22:58:46,299 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 22:58:46,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 22:58:46,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 22:58:46,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 22:58:46,300 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 22:58:46,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 22:58:46,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:58:46,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 22:58:46,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 22:58:46,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 22:58:46,300 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 22:58:46,301 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 22:58:46,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 22:58:46,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 22:58:46,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 22:58:46,502 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 22:58:46,503 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 22:58:46,504 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0680a.c [2022-01-31 22:58:46,546 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a47373e0/d69f38184f6545b38fc4c8ba3f7a5454/FLAGb9d951b68 [2022-01-31 22:58:46,911 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 22:58:46,911 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0680a.c [2022-01-31 22:58:46,928 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a47373e0/d69f38184f6545b38fc4c8ba3f7a5454/FLAGb9d951b68 [2022-01-31 22:58:46,938 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a47373e0/d69f38184f6545b38fc4c8ba3f7a5454 [2022-01-31 22:58:46,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 22:58:46,940 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 22:58:46,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 22:58:46,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 22:58:46,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 22:58:46,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:58:46" (1/1) ... [2022-01-31 22:58:46,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ed6abdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:46, skipping insertion in model container [2022-01-31 22:58:46,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:58:46" (1/1) ... [2022-01-31 22:58:46,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 22:58:46,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 22:58:47,182 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_0680a.c[6165,6178] [2022-01-31 22:58:47,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:58:47,189 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 22:58:47,214 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_0680a.c[6165,6178] [2022-01-31 22:58:47,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:58:47,225 INFO L208 MainTranslator]: Completed translation [2022-01-31 22:58:47,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:47 WrapperNode [2022-01-31 22:58:47,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 22:58:47,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 22:58:47,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 22:58:47,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 22:58:47,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:47" (1/1) ... [2022-01-31 22:58:47,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:47" (1/1) ... [2022-01-31 22:58:47,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:47" (1/1) ... [2022-01-31 22:58:47,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:47" (1/1) ... [2022-01-31 22:58:47,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:47" (1/1) ... [2022-01-31 22:58:47,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:47" (1/1) ... [2022-01-31 22:58:47,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:47" (1/1) ... [2022-01-31 22:58:47,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 22:58:47,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 22:58:47,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 22:58:47,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 22:58:47,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:47" (1/1) ... [2022-01-31 22:58:47,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:58:47,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 22:58:47,292 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 22:58:47,302 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 22:58:47,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 22:58:47,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 22:58:47,323 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 22:58:47,323 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-01-31 22:58:47,323 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-01-31 22:58:47,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2022-01-31 22:58:47,323 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 22:58:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 22:58:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 22:58:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 22:58:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 22:58:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2022-01-31 22:58:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-01-31 22:58:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 22:58:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 22:58:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 22:58:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 22:58:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 22:58:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 22:58:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-01-31 22:58:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2022-01-31 22:58:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 22:58:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 22:58:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 22:58:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-01-31 22:58:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 22:58:47,389 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 22:58:47,390 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 22:58:47,684 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 22:58:47,690 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 22:58:47,690 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-01-31 22:58:47,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:58:47 BoogieIcfgContainer [2022-01-31 22:58:47,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 22:58:47,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 22:58:47,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 22:58:47,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 22:58:47,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:58:46" (1/3) ... [2022-01-31 22:58:47,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@431a5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:58:47, skipping insertion in model container [2022-01-31 22:58:47,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:47" (2/3) ... [2022-01-31 22:58:47,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@431a5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:58:47, skipping insertion in model container [2022-01-31 22:58:47,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:58:47" (3/3) ... [2022-01-31 22:58:47,696 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0680a.c [2022-01-31 22:58:47,699 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 22:58:47,700 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 22:58:47,733 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 22:58:47,737 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 22:58:47,737 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 22:58:47,746 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 87 states have (on average 1.6436781609195403) internal successors, (143), 88 states have internal predecessors, (143), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-01-31 22:58:47,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-31 22:58:47,752 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:58:47,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:58:47,752 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:58:47,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:58:47,755 INFO L85 PathProgramCache]: Analyzing trace with hash 31925066, now seen corresponding path program 1 times [2022-01-31 22:58:47,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:58:47,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [354585679] [2022-01-31 22:58:47,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:58:47,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:58:47,804 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:58:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:58:47,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:58:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:58:47,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 22:58:48,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:58:48,012 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 22:58:48,013 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:58:48,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [354585679] [2022-01-31 22:58:48,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [354585679] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:58:48,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:58:48,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:58:48,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167165773] [2022-01-31 22:58:48,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:58:48,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:58:48,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:58:48,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:58:48,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:58:48,045 INFO L87 Difference]: Start difference. First operand has 101 states, 87 states have (on average 1.6436781609195403) internal successors, (143), 88 states have internal predecessors, (143), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-31 22:58:48,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:58:48,395 INFO L93 Difference]: Finished difference Result 194 states and 310 transitions. [2022-01-31 22:58:48,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:58:48,397 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2022-01-31 22:58:48,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:58:48,406 INFO L225 Difference]: With dead ends: 194 [2022-01-31 22:58:48,406 INFO L226 Difference]: Without dead ends: 97 [2022-01-31 22:58:48,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:58:48,413 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 125 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:58:48,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 132 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:58:48,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-01-31 22:58:48,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-01-31 22:58:48,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 85 states have (on average 1.4470588235294117) internal successors, (123), 85 states have internal predecessors, (123), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 22:58:48,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 136 transitions. [2022-01-31 22:58:48,471 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 136 transitions. Word has length 18 [2022-01-31 22:58:48,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:58:48,471 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 136 transitions. [2022-01-31 22:58:48,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-31 22:58:48,472 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 136 transitions. [2022-01-31 22:58:48,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-31 22:58:48,472 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:58:48,472 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] [2022-01-31 22:58:48,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 22:58:48,473 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:58:48,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:58:48,474 INFO L85 PathProgramCache]: Analyzing trace with hash 626834355, now seen corresponding path program 1 times [2022-01-31 22:58:48,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:58:48,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839247560] [2022-01-31 22:58:48,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:58:48,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:58:48,478 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:58:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:58:48,542 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 22:58:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:58:48,606 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 22:58:48,606 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 22:58:48,610 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 22:58:48,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 22:58:48,613 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 22:58:48,615 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 22:58:48,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 10:58:48 BoogieIcfgContainer [2022-01-31 22:58:48,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 22:58:48,631 INFO L158 Benchmark]: Toolchain (without parser) took 1690.54ms. Allocated memory was 189.8MB in the beginning and 254.8MB in the end (delta: 65.0MB). Free memory was 141.7MB in the beginning and 228.9MB in the end (delta: -87.2MB). Peak memory consumption was 84.3MB. Max. memory is 8.0GB. [2022-01-31 22:58:48,631 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 189.8MB. Free memory is still 158.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 22:58:48,632 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.35ms. Allocated memory is still 189.8MB. Free memory was 141.4MB in the beginning and 163.3MB in the end (delta: -21.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-31 22:58:48,634 INFO L158 Benchmark]: Boogie Preprocessor took 36.18ms. Allocated memory is still 189.8MB. Free memory was 163.3MB in the beginning and 160.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 22:58:48,635 INFO L158 Benchmark]: RCFGBuilder took 429.25ms. Allocated memory is still 189.8MB. Free memory was 160.7MB in the beginning and 138.6MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-01-31 22:58:48,636 INFO L158 Benchmark]: TraceAbstraction took 937.77ms. Allocated memory was 189.8MB in the beginning and 254.8MB in the end (delta: 65.0MB). Free memory was 138.1MB in the beginning and 228.9MB in the end (delta: -90.8MB). Peak memory consumption was 81.7MB. Max. memory is 8.0GB. [2022-01-31 22:58:48,641 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 189.8MB. Free memory is still 158.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 282.35ms. Allocated memory is still 189.8MB. Free memory was 141.4MB in the beginning and 163.3MB in the end (delta: -21.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.18ms. Allocated memory is still 189.8MB. Free memory was 163.3MB in the beginning and 160.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 429.25ms. Allocated memory is still 189.8MB. Free memory was 160.7MB in the beginning and 138.6MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 937.77ms. Allocated memory was 189.8MB in the beginning and 254.8MB in the end (delta: 65.0MB). Free memory was 138.1MB in the beginning and 228.9MB in the end (delta: -90.8MB). Peak memory consumption was 81.7MB. 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: 259]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 253, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 258. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L253] double x = -0.0; [L254] double y = -0.0; [L256] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; [L256] RET, EXPR __ieee754_atan2(y, x) [L256] double res = __ieee754_atan2(y, x); [L258] COND TRUE res != -pi [L259] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 125 mSDsluCounter, 132 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 140 IncrementalHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 130 mSDtfsCounter, 140 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred 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 22:58:48,664 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...