/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 --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1230.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 14:53:51,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 14:53:51,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 14:53:51,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 14:53:51,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 14:53:51,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 14:53:51,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 14:53:51,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 14:53:51,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 14:53:51,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 14:53:51,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 14:53:51,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 14:53:51,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 14:53:51,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 14:53:51,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 14:53:51,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 14:53:51,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 14:53:51,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 14:53:51,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 14:53:51,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 14:53:51,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 14:53:51,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 14:53:51,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 14:53:51,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 14:53:51,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-24 14:53:51,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 14:53:51,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 14:53:51,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 14:53:51,781 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 [2020-09-24 14:53:51,817 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 14:53:51,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 14:53:51,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 14:53:51,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 14:53:51,822 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 14:53:51,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 14:53:51,823 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 14:53:51,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 14:53:51,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 14:53:51,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 14:53:51,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 14:53:51,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 14:53:51,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 14:53:51,825 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 14:53:51,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 14:53:51,825 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 14:53:51,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 14:53:51,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 14:53:51,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 14:53:51,826 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 14:53:51,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 14:53:51,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 14:53:51,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 14:53:51,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 14:53:51,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 14:53:51,828 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 14:53:51,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 14:53:51,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 14:53:51,829 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 14:53:51,829 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.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-09-24 14:53:52,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 14:53:52,411 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 14:53:52,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 14:53:52,418 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 14:53:52,418 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 14:53:52,419 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2020-09-24 14:53:52,503 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/61ddfe551/47467705bba241fda02324588f0d9e1b/FLAGcdacb8c24 [2020-09-24 14:53:53,090 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 14:53:53,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2020-09-24 14:53:53,103 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/61ddfe551/47467705bba241fda02324588f0d9e1b/FLAGcdacb8c24 [2020-09-24 14:53:53,433 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/61ddfe551/47467705bba241fda02324588f0d9e1b [2020-09-24 14:53:53,448 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 14:53:53,454 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 14:53:53,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 14:53:53,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 14:53:53,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 14:53:53,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 02:53:53" (1/1) ... [2020-09-24 14:53:53,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b8a409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:53:53, skipping insertion in model container [2020-09-24 14:53:53,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 02:53:53" (1/1) ... [2020-09-24 14:53:53,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 14:53:53,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 14:53:53,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 14:53:53,744 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 14:53:53,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 14:53:53,907 INFO L208 MainTranslator]: Completed translation [2020-09-24 14:53:53,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:53:53 WrapperNode [2020-09-24 14:53:53,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 14:53:53,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 14:53:53,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 14:53:53,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 14:53:53,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:53:53" (1/1) ... [2020-09-24 14:53:53,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:53:53" (1/1) ... [2020-09-24 14:53:53,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:53:53" (1/1) ... [2020-09-24 14:53:53,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:53:53" (1/1) ... [2020-09-24 14:53:53,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:53:53" (1/1) ... [2020-09-24 14:53:53,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:53:53" (1/1) ... [2020-09-24 14:53:53,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:53:53" (1/1) ... [2020-09-24 14:53:53,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 14:53:53,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 14:53:53,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 14:53:53,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 14:53:53,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:53:53" (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 [2020-09-24 14:53:54,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 14:53:54,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 14:53:54,043 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-09-24 14:53:54,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-09-24 14:53:54,044 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-09-24 14:53:54,044 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 14:53:54,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 14:53:54,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-09-24 14:53:54,045 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-09-24 14:53:54,045 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-09-24 14:53:54,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 14:53:54,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-24 14:53:54,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 14:53:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 14:53:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-09-24 14:53:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 14:53:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 14:53:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 14:53:54,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 14:53:54,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-24 14:53:54,454 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 14:53:54,454 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-24 14:53:54,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 02:53:54 BoogieIcfgContainer [2020-09-24 14:53:54,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 14:53:54,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 14:53:54,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 14:53:54,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 14:53:54,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 02:53:53" (1/3) ... [2020-09-24 14:53:54,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f9494a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 02:53:54, skipping insertion in model container [2020-09-24 14:53:54,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:53:53" (2/3) ... [2020-09-24 14:53:54,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f9494a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 02:53:54, skipping insertion in model container [2020-09-24 14:53:54,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 02:53:54" (3/3) ... [2020-09-24 14:53:54,471 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1230.c [2020-09-24 14:53:54,484 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 14:53:54,499 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 14:53:54,522 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 14:53:54,555 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 14:53:54,555 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 14:53:54,555 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 14:53:54,555 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 14:53:54,555 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 14:53:54,555 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 14:53:54,556 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 14:53:54,556 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 14:53:54,580 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2020-09-24 14:53:54,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-24 14:53:54,590 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:53:54,591 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:53:54,592 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:53:54,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:53:54,599 INFO L82 PathProgramCache]: Analyzing trace with hash 6613302, now seen corresponding path program 1 times [2020-09-24 14:53:54,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:53:54,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1906602109] [2020-09-24 14:53:54,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:53:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:53:54,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:53:54,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:53:54,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 14:53:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:53:54,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 14:53:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:53:54,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 14:53:54,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:53:54,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 14:53:54,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1906602109] [2020-09-24 14:53:54,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:53:54,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 14:53:54,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899127433] [2020-09-24 14:53:54,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 14:53:54,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:53:54,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 14:53:54,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 14:53:54,954 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 4 states. [2020-09-24 14:53:55,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:53:55,213 INFO L93 Difference]: Finished difference Result 144 states and 165 transitions. [2020-09-24 14:53:55,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 14:53:55,215 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-09-24 14:53:55,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:53:55,230 INFO L225 Difference]: With dead ends: 144 [2020-09-24 14:53:55,230 INFO L226 Difference]: Without dead ends: 72 [2020-09-24 14:53:55,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 14:53:55,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-24 14:53:55,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-09-24 14:53:55,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-24 14:53:55,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 79 transitions. [2020-09-24 14:53:55,302 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 79 transitions. Word has length 38 [2020-09-24 14:53:55,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:53:55,303 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 79 transitions. [2020-09-24 14:53:55,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 14:53:55,304 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 79 transitions. [2020-09-24 14:53:55,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-24 14:53:55,308 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:53:55,308 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, 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] [2020-09-24 14:53:55,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 14:53:55,309 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:53:55,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:53:55,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1569895040, now seen corresponding path program 1 times [2020-09-24 14:53:55,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:53:55,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [542684494] [2020-09-24 14:53:55,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:53:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:53:55,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:53:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:53:55,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 14:53:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:53:55,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 14:53:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:53:55,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-24 14:53:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:53:55,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 14:53:55,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [542684494] [2020-09-24 14:53:55,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:53:55,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 14:53:55,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346996316] [2020-09-24 14:53:55,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 14:53:55,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:53:55,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 14:53:55,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 14:53:55,662 INFO L87 Difference]: Start difference. First operand 72 states and 79 transitions. Second operand 6 states. [2020-09-24 14:53:55,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:53:55,863 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2020-09-24 14:53:55,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 14:53:55,864 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-09-24 14:53:55,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:53:55,868 INFO L225 Difference]: With dead ends: 93 [2020-09-24 14:53:55,869 INFO L226 Difference]: Without dead ends: 77 [2020-09-24 14:53:55,870 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 14:53:55,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-09-24 14:53:55,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2020-09-24 14:53:55,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-24 14:53:55,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2020-09-24 14:53:55,886 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 52 [2020-09-24 14:53:55,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:53:55,886 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2020-09-24 14:53:55,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 14:53:55,887 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2020-09-24 14:53:55,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-24 14:53:55,889 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:53:55,889 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, 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, 1, 1, 1] [2020-09-24 14:53:55,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 14:53:55,889 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:53:55,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:53:55,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1915658490, now seen corresponding path program 1 times [2020-09-24 14:53:55,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:53:55,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865718109] [2020-09-24 14:53:55,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:53:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:53:55,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:53:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:53:55,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 14:53:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:53:56,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 14:53:56,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:53:56,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:53:56,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:53:56,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 14:53:56,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865718109] [2020-09-24 14:53:56,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:53:56,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 14:53:56,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044228947] [2020-09-24 14:53:56,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 14:53:56,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:53:56,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 14:53:56,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 14:53:56,070 INFO L87 Difference]: Start difference. First operand 76 states and 84 transitions. Second operand 6 states. [2020-09-24 14:53:56,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:53:56,260 INFO L93 Difference]: Finished difference Result 97 states and 106 transitions. [2020-09-24 14:53:56,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 14:53:56,260 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-09-24 14:53:56,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:53:56,262 INFO L225 Difference]: With dead ends: 97 [2020-09-24 14:53:56,263 INFO L226 Difference]: Without dead ends: 81 [2020-09-24 14:53:56,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 14:53:56,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-09-24 14:53:56,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2020-09-24 14:53:56,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-24 14:53:56,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2020-09-24 14:53:56,275 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 55 [2020-09-24 14:53:56,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:53:56,276 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2020-09-24 14:53:56,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 14:53:56,276 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2020-09-24 14:53:56,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-24 14:53:56,278 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:53:56,278 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, 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, 1, 1, 1] [2020-09-24 14:53:56,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 14:53:56,279 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:53:56,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:53:56,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1520711866, now seen corresponding path program 1 times [2020-09-24 14:53:56,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:53:56,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839421049] [2020-09-24 14:53:56,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:53:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 14:53:56,311 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 14:53:56,312 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 14:53:56,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 14:53:56,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 02:53:56 BoogieIcfgContainer [2020-09-24 14:53:56,343 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 14:53:56,347 INFO L168 Benchmark]: Toolchain (without parser) took 2895.87 ms. Allocated memory was 148.4 MB in the beginning and 233.8 MB in the end (delta: 85.5 MB). Free memory was 104.1 MB in the beginning and 122.1 MB in the end (delta: -18.0 MB). Peak memory consumption was 67.4 MB. Max. memory is 7.1 GB. [2020-09-24 14:53:56,349 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 14:53:56,350 INFO L168 Benchmark]: CACSL2BoogieTranslator took 452.80 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 103.4 MB in the beginning and 183.3 MB in the end (delta: -79.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-09-24 14:53:56,351 INFO L168 Benchmark]: Boogie Preprocessor took 53.57 ms. Allocated memory is still 204.5 MB. Free memory was 183.3 MB in the beginning and 181.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-09-24 14:53:56,352 INFO L168 Benchmark]: RCFGBuilder took 497.94 ms. Allocated memory is still 204.5 MB. Free memory was 181.0 MB in the beginning and 158.7 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-09-24 14:53:56,353 INFO L168 Benchmark]: TraceAbstraction took 1880.85 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 158.7 MB in the beginning and 122.1 MB in the end (delta: 36.6 MB). Peak memory consumption was 66.0 MB. Max. memory is 7.1 GB. [2020-09-24 14:53:56,357 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 452.80 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 103.4 MB in the beginning and 183.3 MB in the end (delta: -79.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 53.57 ms. Allocated memory is still 204.5 MB. Free memory was 183.3 MB in the beginning and 181.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 497.94 ms. Allocated memory is still 204.5 MB. Free memory was 181.0 MB in the beginning and 158.7 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1880.85 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 158.7 MB in the beginning and 122.1 MB in the end (delta: 36.6 MB). Peak memory consumption was 66.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 66]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62. Possible FailurePath: [L61] double x = 0.0 / 0.0; [L62] double y = 0.0 / 0.0; [L63] CALL, EXPR fmin_double(x, y) [L45] CALL, EXPR __fpclassify_double(x) [L18] __uint32_t msw, lsw; [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (msw) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lsw) = ew_u.parts.lsw [L27-L28] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L30-L31] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L33-L34] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L37-L38] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L41] return 0; [L45] RET, EXPR __fpclassify_double(x) [L45] COND TRUE __fpclassify_double(x) == 0 [L46] return y; [L63] RET, EXPR fmin_double(x, y) [L63] double res = fmin_double(x, y); [L65] CALL, EXPR isnan_double(res) [L16] return x != x; [L65] RET, EXPR isnan_double(res) [L65] COND TRUE !isnan_double(res) [L66] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 65 SDslu, 416 SDs, 0 SdLazy, 313 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred 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, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 12412 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...