/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/float_req_bl_0680a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:01:27,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:01:27,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:01:27,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 23:01:27,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:01:27,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:01:27,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:01:27,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:01:27,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:01:27,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:01:27,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:01:27,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:01:27,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:01:27,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:01:27,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:01:27,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:01:27,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 23:01:27,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:01:27,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:01:27,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:01:27,951 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 23:01:27,964 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:01:27,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:01:27,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:01:27,966 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 23:01:27,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:01:27,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 23:01:27,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:01:27,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:01:27,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:01:27,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:01:27,967 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 23:01:27,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:01:27,967 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:01:27,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:01:27,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:01:27,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:01:27,968 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:01:27,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:01:27,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:01:27,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:01:27,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:01:27,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:01:27,969 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 23:01:27,969 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:01:28,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:01:28,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:01:28,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:01:28,233 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:01:28,235 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:01:28,236 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0680a.c [2022-01-31 23:01:28,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2962689ca/e0cb67032bfd41b39ebec68239d8ce82/FLAG10692bdb2 [2022-01-31 23:01:28,669 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:01:28,670 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0680a.c [2022-01-31 23:01:28,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2962689ca/e0cb67032bfd41b39ebec68239d8ce82/FLAG10692bdb2 [2022-01-31 23:01:28,685 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2962689ca/e0cb67032bfd41b39ebec68239d8ce82 [2022-01-31 23:01:28,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:01:28,689 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:01:28,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:01:28,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:01:28,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:01:28,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:01:28" (1/1) ... [2022-01-31 23:01:28,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8d2cfd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:28, skipping insertion in model container [2022-01-31 23:01:28,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:01:28" (1/1) ... [2022-01-31 23:01:28,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:01:28,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:01:28,902 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/float_req_bl_0680a.c[5219,5232] [2022-01-31 23:01:28,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:01:28,912 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:01:28,946 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/float_req_bl_0680a.c[5219,5232] [2022-01-31 23:01:28,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:01:28,961 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:01:28,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:28 WrapperNode [2022-01-31 23:01:28,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:01:28,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:01:28,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:01:28,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:01:28,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:28" (1/1) ... [2022-01-31 23:01:28,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:28" (1/1) ... [2022-01-31 23:01:28,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:28" (1/1) ... [2022-01-31 23:01:28,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:28" (1/1) ... [2022-01-31 23:01:28,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:28" (1/1) ... [2022-01-31 23:01:29,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:28" (1/1) ... [2022-01-31 23:01:29,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:28" (1/1) ... [2022-01-31 23:01:29,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:01:29,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:01:29,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:01:29,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:01:29,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:28" (1/1) ... [2022-01-31 23:01:29,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:01:29,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:01:29,062 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 23:01:29,069 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 23:01:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:01:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:01:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:01:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-01-31 23:01:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2022-01-31 23:01:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2022-01-31 23:01:29,096 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:01:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:01:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:01:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:01:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:01:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2022-01-31 23:01:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-01-31 23:01:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 23:01:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 23:01:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:01:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:01:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:01:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 23:01:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2022-01-31 23:01:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2022-01-31 23:01:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:01:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:01:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:01:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-01-31 23:01:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:01:29,176 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:01:29,177 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:01:29,525 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:01:29,535 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:01:29,535 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-01-31 23:01:29,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:01:29 BoogieIcfgContainer [2022-01-31 23:01:29,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:01:29,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:01:29,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:01:29,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:01:29,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:01:28" (1/3) ... [2022-01-31 23:01:29,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:01:29, skipping insertion in model container [2022-01-31 23:01:29,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:28" (2/3) ... [2022-01-31 23:01:29,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:01:29, skipping insertion in model container [2022-01-31 23:01:29,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:01:29" (3/3) ... [2022-01-31 23:01:29,547 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0680a.c [2022-01-31 23:01:29,552 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:01:29,552 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:01:29,587 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:01:29,592 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 23:01:29,593 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:01:29,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 85 states have (on average 1.6352941176470588) internal successors, (139), 86 states have internal predecessors, (139), 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 23:01:29,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-31 23:01:29,614 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:01:29,615 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 23:01:29,616 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:01:29,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:01:29,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1073011290, now seen corresponding path program 1 times [2022-01-31 23:01:29,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:01:29,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349047200] [2022-01-31 23:01:29,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:01:29,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:01:29,682 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:01:29,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:01:29,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:01:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:01:29,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 23:01:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:01:29,920 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 23:01:29,922 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:01:29,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349047200] [2022-01-31 23:01:29,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [349047200] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:01:29,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:01:29,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:01:29,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207445738] [2022-01-31 23:01:29,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:01:29,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:01:29,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:01:29,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:01:29,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:01:29,965 INFO L87 Difference]: Start difference. First operand has 99 states, 85 states have (on average 1.6352941176470588) internal successors, (139), 86 states have internal predecessors, (139), 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 23:01:30,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:01:30,406 INFO L93 Difference]: Finished difference Result 190 states and 302 transitions. [2022-01-31 23:01:30,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:01:30,408 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 23:01:30,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:01:30,417 INFO L225 Difference]: With dead ends: 190 [2022-01-31 23:01:30,417 INFO L226 Difference]: Without dead ends: 95 [2022-01-31 23:01:30,422 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 23:01:30,425 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 123 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:01:30,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 130 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 23:01:30,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-01-31 23:01:30,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2022-01-31 23:01:30,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 83 states have (on average 1.4578313253012047) internal successors, (121), 83 states have internal predecessors, (121), 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 23:01:30,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 134 transitions. [2022-01-31 23:01:30,496 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 134 transitions. Word has length 18 [2022-01-31 23:01:30,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:01:30,496 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 134 transitions. [2022-01-31 23:01:30,497 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 23:01:30,497 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 134 transitions. [2022-01-31 23:01:30,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-31 23:01:30,497 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:01:30,498 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 23:01:30,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:01:30,498 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:01:30,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:01:30,499 INFO L85 PathProgramCache]: Analyzing trace with hash 76355331, now seen corresponding path program 1 times [2022-01-31 23:01:30,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:01:30,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208821660] [2022-01-31 23:01:30,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:01:30,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:01:30,505 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:01:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 23:01:30,594 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 23:01:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 23:01:30,671 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 23:01:30,672 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 23:01:30,678 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 23:01:30,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 23:01:30,682 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 23:01:30,684 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 23:01:30,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 11:01:30 BoogieIcfgContainer [2022-01-31 23:01:30,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 23:01:30,698 INFO L158 Benchmark]: Toolchain (without parser) took 2008.54ms. Allocated memory was 182.5MB in the beginning and 259.0MB in the end (delta: 76.5MB). Free memory was 128.8MB in the beginning and 129.9MB in the end (delta: -1.0MB). Peak memory consumption was 74.6MB. Max. memory is 8.0GB. [2022-01-31 23:01:30,698 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 182.5MB. Free memory is still 145.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:01:30,699 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.55ms. Allocated memory was 182.5MB in the beginning and 259.0MB in the end (delta: 76.5MB). Free memory was 128.6MB in the beginning and 228.9MB in the end (delta: -100.4MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. [2022-01-31 23:01:30,699 INFO L158 Benchmark]: Boogie Preprocessor took 59.39ms. Allocated memory is still 259.0MB. Free memory was 228.9MB in the beginning and 226.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 23:01:30,700 INFO L158 Benchmark]: RCFGBuilder took 515.36ms. Allocated memory is still 259.0MB. Free memory was 226.3MB in the beginning and 204.8MB in the end (delta: 21.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-01-31 23:01:30,700 INFO L158 Benchmark]: TraceAbstraction took 1156.06ms. Allocated memory is still 259.0MB. Free memory was 204.8MB in the beginning and 129.9MB in the end (delta: 75.0MB). Peak memory consumption was 74.4MB. Max. memory is 8.0GB. [2022-01-31 23:01:30,706 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 182.5MB. Free memory is still 145.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 271.55ms. Allocated memory was 182.5MB in the beginning and 259.0MB in the end (delta: 76.5MB). Free memory was 128.6MB in the beginning and 228.9MB in the end (delta: -100.4MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 59.39ms. Allocated memory is still 259.0MB. Free memory was 228.9MB in the beginning and 226.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 515.36ms. Allocated memory is still 259.0MB. Free memory was 226.3MB in the beginning and 204.8MB in the end (delta: 21.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 1156.06ms. Allocated memory is still 259.0MB. Free memory was 204.8MB in the beginning and 129.9MB in the end (delta: 75.0MB). Peak memory consumption was 74.4MB. 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: 228]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 227, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 135, overapproximation of someUnaryFLOAToperation at line 222, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; [L222] float x = -0.0f; [L223] float y = 0.0f; [L224] CALL, EXPR __ieee754_atan2f(y, x) [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; [L125] ieee_float_shape_type gf_u; [L126] gf_u.value = (x) [L127] EXPR gf_u.word [L127] (hx) = gf_u.word [L129] ix = hx & 0x7fffffff [L131] ieee_float_shape_type gf_u; [L132] gf_u.value = (y) [L133] EXPR gf_u.word [L133] (hy) = gf_u.word [L135] iy = hy & 0x7fffffff [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] return x + y; [L224] RET, EXPR __ieee754_atan2f(y, x) [L224] float res = __ieee754_atan2f(y, x); [L227] COND TRUE res != pi [L228] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 102 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 127 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 123 mSDsluCounter, 130 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 138 IncrementalHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 128 mSDtfsCounter, 138 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=99occurred 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: 0.1s 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 23:01:30,738 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...