/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1250.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 12:59:37,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 12:59:37,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 12:59:37,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 12:59:37,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 12:59:37,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 12:59:37,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 12:59:38,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 12:59:38,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 12:59:38,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 12:59:38,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 12:59:38,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 12:59:38,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 12:59:38,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 12:59:38,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 12:59:38,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 12:59:38,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 12:59:38,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 12:59:38,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 12:59:38,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 12:59:38,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 12:59:38,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 12:59:38,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 12:59:38,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 12:59:38,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 12:59:38,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 12:59:38,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 12:59:38,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 12:59:38,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 12:59:38,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 12:59:38,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 12:59:38,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 12:59:38,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 12:59:38,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 12:59:38,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 12:59:38,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 12:59:38,071 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 [2020-09-04 12:59:38,114 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 12:59:38,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 12:59:38,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 12:59:38,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 12:59:38,117 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 12:59:38,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 12:59:38,117 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 12:59:38,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 12:59:38,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 12:59:38,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 12:59:38,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 12:59:38,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 12:59:38,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 12:59:38,120 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 12:59:38,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 12:59:38,120 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 12:59:38,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 12:59:38,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 12:59:38,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 12:59:38,121 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 12:59:38,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 12:59:38,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 12:59:38,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 12:59:38,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 12:59:38,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 12:59:38,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 12:59:38,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 12:59:38,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 12:59:38,123 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 12:59:38,123 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 12:59:38,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 12:59:38,591 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 12:59:38,595 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 12:59:38,597 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 12:59:38,598 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 12:59:38,599 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1250.c [2020-09-04 12:59:38,690 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b6c6c194/77767ac6dd604324bb4ce7de9ba3382d/FLAG8a4b726e6 [2020-09-04 12:59:39,214 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 12:59:39,214 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_1250.c [2020-09-04 12:59:39,222 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b6c6c194/77767ac6dd604324bb4ce7de9ba3382d/FLAG8a4b726e6 [2020-09-04 12:59:39,546 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b6c6c194/77767ac6dd604324bb4ce7de9ba3382d [2020-09-04 12:59:39,557 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 12:59:39,559 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 12:59:39,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 12:59:39,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 12:59:39,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 12:59:39,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 12:59:39" (1/1) ... [2020-09-04 12:59:39,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22bf37f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:59:39, skipping insertion in model container [2020-09-04 12:59:39,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 12:59:39" (1/1) ... [2020-09-04 12:59:39,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 12:59:39,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 12:59:39,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 12:59:39,919 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 12:59:39,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 12:59:40,009 INFO L208 MainTranslator]: Completed translation [2020-09-04 12:59:40,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:59:40 WrapperNode [2020-09-04 12:59:40,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 12:59:40,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 12:59:40,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 12:59:40,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 12:59:40,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:59:40" (1/1) ... [2020-09-04 12:59:40,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:59:40" (1/1) ... [2020-09-04 12:59:40,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:59:40" (1/1) ... [2020-09-04 12:59:40,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:59:40" (1/1) ... [2020-09-04 12:59:40,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:59:40" (1/1) ... [2020-09-04 12:59:40,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:59:40" (1/1) ... [2020-09-04 12:59:40,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:59:40" (1/1) ... [2020-09-04 12:59:40,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 12:59:40,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 12:59:40,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 12:59:40,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 12:59:40,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:59:40" (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 [2020-09-04 12:59:40,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 12:59:40,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 12:59:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2020-09-04 12:59:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_float [2020-09-04 12:59:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-09-04 12:59:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 12:59:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 12:59:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2020-09-04 12:59:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 12:59:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-04 12:59:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 12:59:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 12:59:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_float [2020-09-04 12:59:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-09-04 12:59:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 12:59:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 12:59:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 12:59:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 12:59:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-04 12:59:40,568 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 12:59:40,568 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-04 12:59:40,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 12:59:40 BoogieIcfgContainer [2020-09-04 12:59:40,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 12:59:40,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 12:59:40,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 12:59:40,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 12:59:40,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 12:59:39" (1/3) ... [2020-09-04 12:59:40,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@249997f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 12:59:40, skipping insertion in model container [2020-09-04 12:59:40,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:59:40" (2/3) ... [2020-09-04 12:59:40,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@249997f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 12:59:40, skipping insertion in model container [2020-09-04 12:59:40,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 12:59:40" (3/3) ... [2020-09-04 12:59:40,582 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1250.c [2020-09-04 12:59:40,597 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 12:59:40,606 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 12:59:40,630 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 12:59:40,657 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 12:59:40,658 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 12:59:40,658 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 12:59:40,658 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 12:59:40,658 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 12:59:40,658 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 12:59:40,658 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 12:59:40,658 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 12:59:40,678 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-09-04 12:59:40,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-04 12:59:40,685 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:59:40,686 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] [2020-09-04 12:59:40,687 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:59:40,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:59:40,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1130060244, now seen corresponding path program 1 times [2020-09-04 12:59:40,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:59:40,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652196406] [2020-09-04 12:59:40,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:59:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:59:40,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:59:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:59:40,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:59:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:59:40,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 12:59:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:59:40,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 12:59:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:59:41,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 12:59:41,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652196406] [2020-09-04 12:59:41,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:59:41,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 12:59:41,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082237377] [2020-09-04 12:59:41,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 12:59:41,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:59:41,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 12:59:41,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 12:59:41,036 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 4 states. [2020-09-04 12:59:41,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:59:41,244 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions. [2020-09-04 12:59:41,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 12:59:41,246 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-09-04 12:59:41,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:59:41,259 INFO L225 Difference]: With dead ends: 71 [2020-09-04 12:59:41,259 INFO L226 Difference]: Without dead ends: 36 [2020-09-04 12:59:41,264 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 [2020-09-04 12:59:41,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-04 12:59:41,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-04 12:59:41,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-04 12:59:41,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2020-09-04 12:59:41,317 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 26 [2020-09-04 12:59:41,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:59:41,318 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2020-09-04 12:59:41,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 12:59:41,318 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2020-09-04 12:59:41,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-04 12:59:41,321 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:59:41,321 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] [2020-09-04 12:59:41,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 12:59:41,322 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:59:41,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:59:41,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1283143896, now seen corresponding path program 1 times [2020-09-04 12:59:41,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:59:41,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799747734] [2020-09-04 12:59:41,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:59:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:59:41,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:59:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:59:41,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:59:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:59:41,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 12:59:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:59:41,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-04 12:59:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:59:41,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 12:59:41,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799747734] [2020-09-04 12:59:41,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:59:41,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 12:59:41,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404748852] [2020-09-04 12:59:41,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 12:59:41,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:59:41,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 12:59:41,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 12:59:41,531 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 6 states. [2020-09-04 12:59:41,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:59:41,798 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2020-09-04 12:59:41,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 12:59:41,799 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-09-04 12:59:41,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:59:41,803 INFO L225 Difference]: With dead ends: 51 [2020-09-04 12:59:41,803 INFO L226 Difference]: Without dead ends: 40 [2020-09-04 12:59:41,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-04 12:59:41,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-04 12:59:41,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-09-04 12:59:41,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-04 12:59:41,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-09-04 12:59:41,817 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 27 [2020-09-04 12:59:41,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:59:41,817 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-09-04 12:59:41,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 12:59:41,818 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-09-04 12:59:41,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-04 12:59:41,819 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:59:41,819 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] [2020-09-04 12:59:41,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 12:59:41,820 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:59:41,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:59:41,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1220464557, now seen corresponding path program 1 times [2020-09-04 12:59:41,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:59:41,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65780700] [2020-09-04 12:59:41,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:59:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:59:41,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:59:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:59:41,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:59:41,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:59:41,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 12:59:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:59:41,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 12:59:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:59:41,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 12:59:41,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65780700] [2020-09-04 12:59:41,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:59:41,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 12:59:41,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149707049] [2020-09-04 12:59:42,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 12:59:42,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:59:42,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 12:59:42,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 12:59:42,001 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 6 states. [2020-09-04 12:59:42,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:59:42,189 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2020-09-04 12:59:42,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 12:59:42,190 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-09-04 12:59:42,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:59:42,191 INFO L225 Difference]: With dead ends: 55 [2020-09-04 12:59:42,191 INFO L226 Difference]: Without dead ends: 44 [2020-09-04 12:59:42,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-04 12:59:42,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-04 12:59:42,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2020-09-04 12:59:42,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-04 12:59:42,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-09-04 12:59:42,202 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 30 [2020-09-04 12:59:42,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:59:42,203 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-09-04 12:59:42,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 12:59:42,203 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-09-04 12:59:42,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-04 12:59:42,204 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:59:42,205 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] [2020-09-04 12:59:42,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 12:59:42,205 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:59:42,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:59:42,206 INFO L82 PathProgramCache]: Analyzing trace with hash 287087252, now seen corresponding path program 1 times [2020-09-04 12:59:42,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:59:42,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604352418] [2020-09-04 12:59:42,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:59:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 12:59:42,231 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 12:59:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 12:59:42,259 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 12:59:42,298 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-04 12:59:42,298 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 12:59:42,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 12:59:42,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 12:59:42 BoogieIcfgContainer [2020-09-04 12:59:42,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 12:59:42,343 INFO L168 Benchmark]: Toolchain (without parser) took 2783.05 ms. Allocated memory was 141.6 MB in the beginning and 234.4 MB in the end (delta: 92.8 MB). Free memory was 105.0 MB in the beginning and 142.0 MB in the end (delta: -37.0 MB). Peak memory consumption was 55.8 MB. Max. memory is 7.1 GB. [2020-09-04 12:59:42,344 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 12:59:42,345 INFO L168 Benchmark]: CACSL2BoogieTranslator took 452.34 ms. Allocated memory is still 141.6 MB. Free memory was 104.8 MB in the beginning and 93.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2020-09-04 12:59:42,346 INFO L168 Benchmark]: Boogie Preprocessor took 148.85 ms. Allocated memory was 141.6 MB in the beginning and 202.4 MB in the end (delta: 60.8 MB). Free memory was 93.6 MB in the beginning and 179.9 MB in the end (delta: -86.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-09-04 12:59:42,347 INFO L168 Benchmark]: RCFGBuilder took 412.10 ms. Allocated memory is still 202.4 MB. Free memory was 179.9 MB in the beginning and 161.4 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2020-09-04 12:59:42,348 INFO L168 Benchmark]: TraceAbstraction took 1765.13 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 160.8 MB in the beginning and 142.0 MB in the end (delta: 18.8 MB). Peak memory consumption was 50.8 MB. Max. memory is 7.1 GB. [2020-09-04 12:59:42,352 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 452.34 ms. Allocated memory is still 141.6 MB. Free memory was 104.8 MB in the beginning and 93.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 148.85 ms. Allocated memory was 141.6 MB in the beginning and 202.4 MB in the end (delta: 60.8 MB). Free memory was 93.6 MB in the beginning and 179.9 MB in the end (delta: -86.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 412.10 ms. Allocated memory is still 202.4 MB. Free memory was 179.9 MB in the beginning and 161.4 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1765.13 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 160.8 MB in the beginning and 142.0 MB in the end (delta: 18.8 MB). Peak memory consumption was 50.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 65]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 54, overapproximation of someBinaryArithmeticFLOAToperation at line 60. Possible FailurePath: [L60] float x = 0.0f / 0.0f; [L61] float y = 0.0f / 0.0f; [L62] CALL, EXPR fmax_float(x, y) VAL [\old(x)=2139095044, \old(y)=2139095042] [L43] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=2139095044] [L20] __uint32_t w; VAL [\old(x)=2139095044, x=2139095044] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (w) = gf_u.word [L28] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=2139095044, w=2139095041, x=2139095044] [L30-L31] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=2139095044, w=2139095041, x=2139095044] [L33-L34] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=2139095044, w=2139095041, x=2139095044] [L36] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L39] return 0; VAL [\old(x)=2139095044, \result=0, w=2139095041, x=2139095044] [L43] RET, EXPR __fpclassify_float(x) VAL [\old(x)=2139095044, \old(y)=2139095042, __fpclassify_float(x)=0, x=2139095044, y=2139095042] [L43] COND TRUE __fpclassify_float(x) == 0 [L44] return y; VAL [\old(x)=2139095044, \old(y)=2139095042, \result=2139095042, x=2139095044, y=2139095042] [L62] RET, EXPR fmax_float(x, y) VAL [fmax_float(x, y)=2139095042, x=2139095044, y=2139095042] [L62] float res = fmax_float(x, y); [L64] CALL, EXPR isnan_float(res) VAL [\old(x)=2139095042] [L54] return x != x; VAL [\old(x)=2139095042, \result=0, x=2139095042] [L64] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=2139095042, x=2139095044, y=2139095042] [L64] COND TRUE !isnan_float(res) [L65] __VERIFIER_error() VAL [res=2139095042, x=2139095044, y=2139095042] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 40 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: 111 SDtfs, 108 SDslu, 43 SDs, 0 SdLazy, 255 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 5222 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...