java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-benchs/sqrt_Householder_constant.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:15:47,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:15:47,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:15:47,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:15:47,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:15:47,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:15:47,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:15:47,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:15:47,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:15:47,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:15:47,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:15:47,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:15:47,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:15:47,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:15:47,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:15:47,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:15:47,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:15:47,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:15:47,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:15:47,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:15:47,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:15:47,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:15:47,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:15:47,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:15:47,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 01:15:47,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 01:15:47,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 01:15:47,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 01:15:47,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 01:15:47,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 01:15:47,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:15:47,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:15:47,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:15:47,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:15:47,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:15:47,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:15:47,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:15:47,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:15:47,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:15:47,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:15:47,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:15:47,363 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-08 01:15:47,389 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:15:47,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:15:47,390 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:15:47,391 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:15:47,391 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:15:47,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:15:47,391 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:15:47,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:15:47,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:15:47,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:15:47,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:15:47,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:15:47,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:15:47,393 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:15:47,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:15:47,394 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:15:47,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:15:47,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:15:47,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:15:47,395 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:15:47,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:15:47,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:15:47,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:15:47,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:15:47,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:15:47,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:15:47,396 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:15:47,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:15:47,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:15:47,429 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:15:47,441 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:15:47,444 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:15:47,447 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:15:47,448 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:15:47,450 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/sqrt_Householder_constant.c [2019-09-08 01:15:47,527 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e43851f90/e14115e362fc4225968dafd7361f267c/FLAG4230ee652 [2019-09-08 01:15:47,960 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:15:47,961 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/sqrt_Householder_constant.c [2019-09-08 01:15:47,968 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e43851f90/e14115e362fc4225968dafd7361f267c/FLAG4230ee652 [2019-09-08 01:15:48,330 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e43851f90/e14115e362fc4225968dafd7361f267c [2019-09-08 01:15:48,340 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:15:48,342 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:15:48,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:15:48,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:15:48,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:15:48,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:15:48" (1/1) ... [2019-09-08 01:15:48,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6072a93d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:48, skipping insertion in model container [2019-09-08 01:15:48,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:15:48" (1/1) ... [2019-09-08 01:15:48,357 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:15:48,375 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:15:48,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:15:48,635 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:15:48,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:15:48,693 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:15:48,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:48 WrapperNode [2019-09-08 01:15:48,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:15:48,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:15:48,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:15:48,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:15:48,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:48" (1/1) ... [2019-09-08 01:15:48,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:48" (1/1) ... [2019-09-08 01:15:48,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:48" (1/1) ... [2019-09-08 01:15:48,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:48" (1/1) ... [2019-09-08 01:15:48,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:48" (1/1) ... [2019-09-08 01:15:48,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:48" (1/1) ... [2019-09-08 01:15:48,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:48" (1/1) ... [2019-09-08 01:15:48,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:15:48,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:15:48,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:15:48,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:15:48,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:15:48,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:15:48,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:15:48,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-08 01:15:48,902 INFO L138 BoogieDeclarations]: Found implementation of procedure SqrtR [2019-09-08 01:15:48,902 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:15:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:15:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-08 01:15:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 01:15:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-08 01:15:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure SqrtR [2019-09-08 01:15:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:15:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:15:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:15:49,104 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:15:49,104 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-08 01:15:49,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:15:49 BoogieIcfgContainer [2019-09-08 01:15:49,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:15:49,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:15:49,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:15:49,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:15:49,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:15:48" (1/3) ... [2019-09-08 01:15:49,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be965f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:15:49, skipping insertion in model container [2019-09-08 01:15:49,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:48" (2/3) ... [2019-09-08 01:15:49,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be965f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:15:49, skipping insertion in model container [2019-09-08 01:15:49,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:15:49" (3/3) ... [2019-09-08 01:15:49,136 INFO L109 eAbstractionObserver]: Analyzing ICFG sqrt_Householder_constant.c [2019-09-08 01:15:49,161 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:15:49,170 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:15:49,197 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:15:49,242 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:15:49,243 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:15:49,243 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:15:49,243 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:15:49,243 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:15:49,243 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:15:49,243 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:15:49,244 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:15:49,244 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:15:49,259 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-09-08 01:15:49,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-08 01:15:49,264 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:15:49,265 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:15:49,267 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:15:49,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:15:49,273 INFO L82 PathProgramCache]: Analyzing trace with hash -995072322, now seen corresponding path program 1 times [2019-09-08 01:15:49,274 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:15:49,274 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:15:49,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:15:49,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:15:49,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:15:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:15:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:15:49,403 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:15:49,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:15:49 BoogieIcfgContainer [2019-09-08 01:15:49,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:15:49,431 INFO L168 Benchmark]: Toolchain (without parser) took 1088.04 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 95.4 MB in the beginning and 152.1 MB in the end (delta: -56.7 MB). Peak memory consumption was 6.2 MB. Max. memory is 7.1 GB. [2019-09-08 01:15:49,432 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 114.0 MB in the beginning and 113.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:15:49,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.55 ms. Allocated memory is still 139.5 MB. Free memory was 95.2 MB in the beginning and 85.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-09-08 01:15:49,434 INFO L168 Benchmark]: Boogie Preprocessor took 159.72 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 85.1 MB in the beginning and 178.8 MB in the end (delta: -93.7 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2019-09-08 01:15:49,435 INFO L168 Benchmark]: RCFGBuilder took 251.21 ms. Allocated memory is still 202.4 MB. Free memory was 178.8 MB in the beginning and 165.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2019-09-08 01:15:49,436 INFO L168 Benchmark]: TraceAbstraction took 311.10 ms. Allocated memory is still 202.4 MB. Free memory was 165.0 MB in the beginning and 152.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2019-09-08 01:15:49,440 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 114.0 MB in the beginning and 113.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 352.55 ms. Allocated memory is still 139.5 MB. Free memory was 95.2 MB in the beginning and 85.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 159.72 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 85.1 MB in the beginning and 178.8 MB in the end (delta: -93.7 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 251.21 ms. Allocated memory is still 202.4 MB. Free memory was 178.8 MB in the beginning and 165.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 311.10 ms. Allocated memory is still 202.4 MB. Free memory was 165.0 MB in the beginning and 152.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 15]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someUnaryDOUBLEoperation at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 39. Possible FailurePath: [L17] double _EPS = 1e-6; VAL [\old(_EPS)=1, _EPS=1/1000000] [L44] double d, r; [L46] d = 1. VAL [_EPS=1/1000000, d=1] [L46] COND TRUE d <= 20. VAL [_EPS=1/1000000, d=1] [L48] CALL, EXPR SqrtR(d) VAL [\old(Input)=1, _EPS=1/1000000] [L21] double xn, xnp1, residu, lsup, linf; [L22] int i, cond; VAL [\old(Input)=1, _EPS=1/1000000, Input=1] [L23] COND TRUE Input <= 1.0 [L23] xn = 1.0 VAL [\old(Input)=1, _EPS=1/1000000, Input=1, xn=1] [L24] xnp1 = xn [L25] residu = 2.0*_EPS*(xn+xnp1) [L26] lsup = _EPS * (xn+xnp1) [L27] linf = -lsup [L28] cond = ((residu > lsup) || (residu < linf)) [L29] i = 0 VAL [\old(Input)=1, _EPS=1/1000000, cond=0, i=0, Input=1, xn=1, xn=1] [L30] COND FALSE !(\read(cond)) VAL [\old(Input)=1, _EPS=1/1000000, cond=0, i=0, Input=1, xn=1, xn=1] [L39] return 1.0 / xnp1; VAL [\old(Input)=1, _EPS=1/1000000, cond=0, i=0, Input=1, xn=1, xn=1] [L48] RET, EXPR SqrtR(d) VAL [_EPS=1/1000000, d=1, SqrtR(d)=2] [L48] r = SqrtR(d) [L50] CALL __VERIFIER_assert(r >= 1.0 && r <= 5.0) VAL [\old(cond)=0, _EPS=1/1000000] [L15] COND TRUE !(cond) VAL [\old(cond)=0, _EPS=1/1000000, cond=0] [L15] __VERIFIER_error() VAL [\old(cond)=0, _EPS=1/1000000, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 29 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...