/usr/bin/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 14:52:41,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 14:52:41,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 14:52:41,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 14:52:41,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 14:52:41,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 14:52:41,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 14:52:41,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 14:52:41,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 14:52:41,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 14:52:41,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 14:52:41,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 14:52:41,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 14:52:41,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 14:52:41,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 14:52:41,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 14:52:41,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 14:52:41,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 14:52:41,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 14:52:41,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 14:52:41,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 14:52:41,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 14:52:41,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 14:52:41,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 14:52:41,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 14:52:41,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 14:52:41,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 14:52:41,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 14:52:41,726 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 14:52:41,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-08-21 14:52:41,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 14:52:41,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 14:52:41,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 14:52:41,740 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 14:52:41,778 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 14:52:41,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 14:52:41,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 14:52:41,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 14:52:41,781 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 14:52:41,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 14:52:41,782 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 14:52:41,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 14:52:41,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 14:52:41,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 14:52:41,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 14:52:41,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 14:52:41,784 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 14:52:41,784 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 14:52:41,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 14:52:41,785 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 14:52:41,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 14:52:41,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 14:52:41,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 14:52:41,785 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 14:52:41,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 14:52:41,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 14:52:41,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 14:52:41,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 14:52:41,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 14:52:41,787 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 14:52:41,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 14:52:41,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 14:52:41,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 14:52:41,788 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> interpolation-heuristic=FIRST;log-additional-information=true; [2020-08-21 14:52:42,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 14:52:42,138 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 14:52:42,142 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 14:52:42,143 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 14:52:42,144 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 14:52:42,144 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c [2020-08-21 14:52:42,209 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9e324928/d3327483c4d64d7b9eff7900535720db/FLAGf794fcd4c [2020-08-21 14:52:42,684 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 14:52:42,685 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c [2020-08-21 14:52:42,692 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9e324928/d3327483c4d64d7b9eff7900535720db/FLAGf794fcd4c [2020-08-21 14:52:43,061 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9e324928/d3327483c4d64d7b9eff7900535720db [2020-08-21 14:52:43,069 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 14:52:43,070 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 14:52:43,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 14:52:43,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 14:52:43,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 14:52:43,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 02:52:43" (1/1) ... [2020-08-21 14:52:43,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d6fb2f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:52:43, skipping insertion in model container [2020-08-21 14:52:43,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 02:52:43" (1/1) ... [2020-08-21 14:52:43,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 14:52:43,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 14:52:43,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 14:52:43,336 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 14:52:43,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 14:52:43,486 INFO L208 MainTranslator]: Completed translation [2020-08-21 14:52:43,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:52:43 WrapperNode [2020-08-21 14:52:43,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 14:52:43,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 14:52:43,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 14:52:43,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 14:52:43,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:52:43" (1/1) ... [2020-08-21 14:52:43,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:52:43" (1/1) ... [2020-08-21 14:52:43,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:52:43" (1/1) ... [2020-08-21 14:52:43,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:52:43" (1/1) ... [2020-08-21 14:52:43,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:52:43" (1/1) ... [2020-08-21 14:52:43,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:52:43" (1/1) ... [2020-08-21 14:52:43,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:52:43" (1/1) ... [2020-08-21 14:52:43,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 14:52:43,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 14:52:43,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 14:52:43,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 14:52:43,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:52:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-21 14:52:43,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 14:52:43,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 14:52:43,611 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-21 14:52:43,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-08-21 14:52:43,611 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-08-21 14:52:43,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-08-21 14:52:43,612 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 14:52:43,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 14:52:43,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-21 14:52:43,612 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-21 14:52:43,612 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-08-21 14:52:43,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 14:52:43,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-21 14:52:43,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 14:52:43,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 14:52:43,613 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-08-21 14:52:43,613 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-08-21 14:52:43,613 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 14:52:43,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 14:52:43,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 14:52:43,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 14:52:43,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-21 14:52:43,946 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 14:52:43,946 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-21 14:52:43,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 02:52:43 BoogieIcfgContainer [2020-08-21 14:52:43,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 14:52:43,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 14:52:43,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 14:52:43,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 14:52:43,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 02:52:43" (1/3) ... [2020-08-21 14:52:43,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e750409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 02:52:43, skipping insertion in model container [2020-08-21 14:52:43,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:52:43" (2/3) ... [2020-08-21 14:52:43,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e750409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 02:52:43, skipping insertion in model container [2020-08-21 14:52:43,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 02:52:43" (3/3) ... [2020-08-21 14:52:43,962 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232b.c [2020-08-21 14:52:43,976 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 14:52:43,985 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 14:52:44,002 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 14:52:44,037 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 14:52:44,038 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 14:52:44,041 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 14:52:44,041 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 14:52:44,041 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 14:52:44,042 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 14:52:44,042 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 14:52:44,042 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 14:52:44,074 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-08-21 14:52:44,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-08-21 14:52:44,081 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:52:44,083 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:52:44,083 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:52:44,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:52:44,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1786760399, now seen corresponding path program 1 times [2020-08-21 14:52:44,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:52:44,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440066072] [2020-08-21 14:52:44,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:52:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:52:44,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:52:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:52:44,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:52:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:52:44,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:52:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:52:44,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:52:44,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440066072] [2020-08-21 14:52:44,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:52:44,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 14:52:44,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603485499] [2020-08-21 14:52:44,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 14:52:44,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:52:44,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 14:52:44,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 14:52:44,436 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 4 states. [2020-08-21 14:52:44,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:52:44,644 INFO L93 Difference]: Finished difference Result 79 states and 107 transitions. [2020-08-21 14:52:44,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-21 14:52:44,646 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-08-21 14:52:44,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:52:44,657 INFO L225 Difference]: With dead ends: 79 [2020-08-21 14:52:44,657 INFO L226 Difference]: Without dead ends: 40 [2020-08-21 14:52:44,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 14:52:44,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-08-21 14:52:44,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-08-21 14:52:44,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-08-21 14:52:44,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-08-21 14:52:44,711 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 22 [2020-08-21 14:52:44,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:52:44,711 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-08-21 14:52:44,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 14:52:44,712 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-08-21 14:52:44,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-21 14:52:44,714 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:52:44,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:52:44,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 14:52:44,715 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:52:44,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:52:44,715 INFO L82 PathProgramCache]: Analyzing trace with hash -952976765, now seen corresponding path program 1 times [2020-08-21 14:52:44,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:52:44,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484190556] [2020-08-21 14:52:44,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:52:44,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:52:44,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:52:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:52:44,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:52:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:52:44,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:52:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:52:44,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:52:44,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484190556] [2020-08-21 14:52:44,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:52:44,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 14:52:44,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846383636] [2020-08-21 14:52:44,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 14:52:44,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:52:44,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 14:52:44,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 14:52:44,913 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 6 states. [2020-08-21 14:52:45,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:52:45,199 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2020-08-21 14:52:45,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 14:52:45,200 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-08-21 14:52:45,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:52:45,203 INFO L225 Difference]: With dead ends: 59 [2020-08-21 14:52:45,204 INFO L226 Difference]: Without dead ends: 44 [2020-08-21 14:52:45,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-21 14:52:45,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-08-21 14:52:45,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-08-21 14:52:45,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-08-21 14:52:45,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2020-08-21 14:52:45,218 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 23 [2020-08-21 14:52:45,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:52:45,218 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2020-08-21 14:52:45,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 14:52:45,219 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2020-08-21 14:52:45,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-21 14:52:45,220 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:52:45,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:52:45,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 14:52:45,221 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:52:45,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:52:45,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1944362408, now seen corresponding path program 1 times [2020-08-21 14:52:45,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:52:45,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [393352900] [2020-08-21 14:52:45,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:52:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:52:45,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:52:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:52:45,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 14:52:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:52:45,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 14:52:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:52:45,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:52:45,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [393352900] [2020-08-21 14:52:45,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:52:45,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 14:52:45,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843524497] [2020-08-21 14:52:45,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 14:52:45,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:52:45,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 14:52:45,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 14:52:45,380 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand 6 states. [2020-08-21 14:52:45,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:52:45,629 INFO L93 Difference]: Finished difference Result 63 states and 74 transitions. [2020-08-21 14:52:45,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 14:52:45,630 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-08-21 14:52:45,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:52:45,631 INFO L225 Difference]: With dead ends: 63 [2020-08-21 14:52:45,632 INFO L226 Difference]: Without dead ends: 48 [2020-08-21 14:52:45,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-21 14:52:45,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-08-21 14:52:45,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2020-08-21 14:52:45,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-08-21 14:52:45,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2020-08-21 14:52:45,643 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 26 [2020-08-21 14:52:45,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:52:45,644 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2020-08-21 14:52:45,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 14:52:45,644 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2020-08-21 14:52:45,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-21 14:52:45,645 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:52:45,646 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:52:45,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 14:52:45,646 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:52:45,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:52:45,647 INFO L82 PathProgramCache]: Analyzing trace with hash 553653529, now seen corresponding path program 1 times [2020-08-21 14:52:45,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:52:45,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657000912] [2020-08-21 14:52:45,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:52:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 14:52:45,686 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 14:52:45,686 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 14:52:45,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 14:52:45,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 02:52:45 BoogieIcfgContainer [2020-08-21 14:52:45,720 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 14:52:45,724 INFO L168 Benchmark]: Toolchain (without parser) took 2651.77 ms. Allocated memory was 140.0 MB in the beginning and 235.4 MB in the end (delta: 95.4 MB). Free memory was 103.1 MB in the beginning and 139.0 MB in the end (delta: -35.9 MB). Peak memory consumption was 59.5 MB. Max. memory is 7.1 GB. [2020-08-21 14:52:45,726 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-21 14:52:45,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.94 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 102.9 MB in the beginning and 180.8 MB in the end (delta: -77.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-08-21 14:52:45,730 INFO L168 Benchmark]: Boogie Preprocessor took 53.90 ms. Allocated memory is still 203.4 MB. Free memory was 180.8 MB in the beginning and 178.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-08-21 14:52:45,732 INFO L168 Benchmark]: RCFGBuilder took 410.21 ms. Allocated memory is still 203.4 MB. Free memory was 178.8 MB in the beginning and 157.6 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2020-08-21 14:52:45,738 INFO L168 Benchmark]: TraceAbstraction took 1767.03 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 156.9 MB in the beginning and 139.0 MB in the end (delta: 17.9 MB). Peak memory consumption was 49.8 MB. Max. memory is 7.1 GB. [2020-08-21 14:52:45,752 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 415.94 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 102.9 MB in the beginning and 180.8 MB in the end (delta: -77.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 53.90 ms. Allocated memory is still 203.4 MB. Free memory was 180.8 MB in the beginning and 178.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 410.21 ms. Allocated memory is still 203.4 MB. Free memory was 178.8 MB in the beginning and 157.6 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1767.03 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 156.9 MB in the beginning and 139.0 MB in the end (delta: 17.9 MB). Peak memory consumption was 49.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 79, overapproximation of someUnaryDOUBLEoperation at line 74. Possible FailurePath: [L74] double x = -0.0; [L75] double y = 0.0; [L76] CALL, EXPR fmin_double(x, y) [L46] CALL, EXPR __fpclassify_double(x) [L19] __uint32_t msw, lsw; [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (msw) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (lsw) = ew_u.parts.lsw [L28-L29] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L31-L32] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L34-L35] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L38-L39] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L42] return 0; [L46] RET, EXPR __fpclassify_double(x) [L46] COND TRUE __fpclassify_double(x) == 0 [L47] return y; [L76] RET, EXPR fmin_double(x, y) [L76] double res = fmin_double(x, y); [L79] EXPR res == -0.0 && __signbit_double(res) == 1 [L79] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L80] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 123 SDtfs, 117 SDslu, 43 SDs, 0 SdLazy, 296 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 4170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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 Received shutdown request...