/usr/bin/java -ea -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/double_req_bl_1011b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:03:02,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:03:02,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:03:02,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:03:02,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:03:02,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:03:02,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:03:02,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:03:02,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:03:02,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:03:02,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:03:02,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:03:02,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:03:02,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:03:02,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:03:02,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:03:02,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:03:02,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:03:02,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:03:02,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:03:02,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:03:02,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:03:02,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:03:02,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:03:02,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 22:03:02,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 22:03:02,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 22:03:02,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 22:03:02,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 22:03:02,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 22:03:02,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 22:03:02,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 22:03:02,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 22:03:02,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 22:03:02,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 22:03:02,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 22:03:02,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 22:03:02,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 22:03:02,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:03:02,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:03:02,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:03:02,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 22:03:02,842 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:03:02,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:03:02,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:03:02,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:03:02,844 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:03:02,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:03:02,844 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:03:02,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:03:02,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:03:02,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:03:02,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:03:02,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:03:02,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:03:02,846 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:03:02,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:03:02,846 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:03:02,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:03:02,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:03:02,847 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:03:02,847 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:03:02,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:03:02,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:03:02,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:03:02,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:03:02,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:03:02,848 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:03:02,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:03:02,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:03:02,849 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:03:02,849 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:03:03,113 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:03:03,129 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:03:03,132 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:03:03,133 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:03:03,133 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:03:03,133 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1011b.c [2020-07-17 22:03:03,205 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72edc044c/28a5ac9ad8104f6c824856c77067ba2c/FLAGaafa1291e [2020-07-17 22:03:03,681 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:03:03,682 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1011b.c [2020-07-17 22:03:03,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72edc044c/28a5ac9ad8104f6c824856c77067ba2c/FLAGaafa1291e [2020-07-17 22:03:04,100 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72edc044c/28a5ac9ad8104f6c824856c77067ba2c [2020-07-17 22:03:04,109 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:03:04,112 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:03:04,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:03:04,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:03:04,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:03:04,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:03:04" (1/1) ... [2020-07-17 22:03:04,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e796ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:04, skipping insertion in model container [2020-07-17 22:03:04,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:03:04" (1/1) ... [2020-07-17 22:03:04,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:03:04,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:03:04,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:03:04,341 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:03:04,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:03:04,389 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:03:04,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:04 WrapperNode [2020-07-17 22:03:04,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:03:04,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:03:04,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:03:04,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:03:04,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:04" (1/1) ... [2020-07-17 22:03:04,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:04" (1/1) ... [2020-07-17 22:03:04,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:04" (1/1) ... [2020-07-17 22:03:04,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:04" (1/1) ... [2020-07-17 22:03:04,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:04" (1/1) ... [2020-07-17 22:03:04,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:04" (1/1) ... [2020-07-17 22:03:04,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:04" (1/1) ... [2020-07-17 22:03:04,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:03:04,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:03:04,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:03:04,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:03:04,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:03:04,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:03:04,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:03:04,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-07-17 22:03:04,577 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-07-17 22:03:04,577 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:03:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:03:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-07-17 22:03:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 22:03:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 22:03:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:03:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:03:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-07-17 22:03:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:03:04,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 22:03:04,580 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:03:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:03:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:03:04,924 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:03:04,924 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-17 22:03:04,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:03:04 BoogieIcfgContainer [2020-07-17 22:03:04,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:03:04,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:03:04,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:03:04,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:03:04,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:03:04" (1/3) ... [2020-07-17 22:03:04,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd0e14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:03:04, skipping insertion in model container [2020-07-17 22:03:04,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:04" (2/3) ... [2020-07-17 22:03:04,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd0e14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:03:04, skipping insertion in model container [2020-07-17 22:03:04,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:03:04" (3/3) ... [2020-07-17 22:03:04,936 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1011b.c [2020-07-17 22:03:04,946 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:03:04,953 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:03:04,970 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:03:04,997 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:03:04,998 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:03:04,998 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:03:04,998 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:03:04,998 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:03:04,998 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:03:04,998 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:03:04,999 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:03:05,016 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-07-17 22:03:05,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-17 22:03:05,022 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:03:05,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:03:05,023 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:03:05,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:03:05,029 INFO L82 PathProgramCache]: Analyzing trace with hash -2010282984, now seen corresponding path program 1 times [2020-07-17 22:03:05,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:03:05,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490229879] [2020-07-17 22:03:05,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:03:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:03:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:03:05,218 INFO L280 TraceCheckUtils]: 0: Hoare triple {46#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {35#true} is VALID [2020-07-17 22:03:05,219 INFO L280 TraceCheckUtils]: 1: Hoare triple {35#true} assume true; {35#true} is VALID [2020-07-17 22:03:05,219 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {35#true} {35#true} #65#return; {35#true} is VALID [2020-07-17 22:03:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:03:05,276 INFO L280 TraceCheckUtils]: 0: Hoare triple {47#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~high~0; {35#true} is VALID [2020-07-17 22:03:05,277 INFO L280 TraceCheckUtils]: 1: Hoare triple {35#true} assume !true; {36#false} is VALID [2020-07-17 22:03:05,278 INFO L280 TraceCheckUtils]: 2: Hoare triple {36#false} assume !true; {36#false} is VALID [2020-07-17 22:03:05,278 INFO L280 TraceCheckUtils]: 3: Hoare triple {36#false} #res := ~x; {36#false} is VALID [2020-07-17 22:03:05,279 INFO L280 TraceCheckUtils]: 4: Hoare triple {36#false} assume true; {36#false} is VALID [2020-07-17 22:03:05,279 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {36#false} {35#true} #69#return; {36#false} is VALID [2020-07-17 22:03:05,281 INFO L263 TraceCheckUtils]: 0: Hoare triple {35#true} call ULTIMATE.init(); {46#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:03:05,283 INFO L280 TraceCheckUtils]: 1: Hoare triple {46#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {35#true} is VALID [2020-07-17 22:03:05,283 INFO L280 TraceCheckUtils]: 2: Hoare triple {35#true} assume true; {35#true} is VALID [2020-07-17 22:03:05,283 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {35#true} {35#true} #65#return; {35#true} is VALID [2020-07-17 22:03:05,284 INFO L263 TraceCheckUtils]: 4: Hoare triple {35#true} call #t~ret9 := main(); {35#true} is VALID [2020-07-17 22:03:05,284 INFO L280 TraceCheckUtils]: 5: Hoare triple {35#true} ~x~0 := ~someUnaryDOUBLEoperation(0.0); {35#true} is VALID [2020-07-17 22:03:05,286 INFO L263 TraceCheckUtils]: 6: Hoare triple {35#true} call #t~ret6 := fabs_double(~x~0); {47#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-17 22:03:05,287 INFO L280 TraceCheckUtils]: 7: Hoare triple {47#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~high~0; {35#true} is VALID [2020-07-17 22:03:05,288 INFO L280 TraceCheckUtils]: 8: Hoare triple {35#true} assume !true; {36#false} is VALID [2020-07-17 22:03:05,289 INFO L280 TraceCheckUtils]: 9: Hoare triple {36#false} assume !true; {36#false} is VALID [2020-07-17 22:03:05,289 INFO L280 TraceCheckUtils]: 10: Hoare triple {36#false} #res := ~x; {36#false} is VALID [2020-07-17 22:03:05,289 INFO L280 TraceCheckUtils]: 11: Hoare triple {36#false} assume true; {36#false} is VALID [2020-07-17 22:03:05,290 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {36#false} {35#true} #69#return; {36#false} is VALID [2020-07-17 22:03:05,290 INFO L280 TraceCheckUtils]: 13: Hoare triple {36#false} ~res~0 := #t~ret6;havoc #t~ret6;#t~short8 := ~someBinaryDOUBLEComparisonOperation(~res~0, 0.0); {36#false} is VALID [2020-07-17 22:03:05,290 INFO L280 TraceCheckUtils]: 14: Hoare triple {36#false} assume !#t~short8; {36#false} is VALID [2020-07-17 22:03:05,291 INFO L280 TraceCheckUtils]: 15: Hoare triple {36#false} assume !#t~short8;havoc #t~ret7;havoc #t~short8; {36#false} is VALID [2020-07-17 22:03:05,291 INFO L280 TraceCheckUtils]: 16: Hoare triple {36#false} assume !false; {36#false} is VALID [2020-07-17 22:03:05,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:03:05,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490229879] [2020-07-17 22:03:05,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:03:05,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 22:03:05,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791115166] [2020-07-17 22:03:05,302 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-17 22:03:05,304 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:03:05,308 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-17 22:03:05,340 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:03:05,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 22:03:05,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:03:05,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 22:03:05,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 22:03:05,353 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 4 states. [2020-07-17 22:03:05,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:03:05,659 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2020-07-17 22:03:05,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 22:03:05,660 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-17 22:03:05,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:03:05,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:03:05,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2020-07-17 22:03:05,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:03:05,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2020-07-17 22:03:05,679 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 71 transitions. [2020-07-17 22:03:05,798 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 71 edges. 71 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:03:05,810 INFO L225 Difference]: With dead ends: 56 [2020-07-17 22:03:05,810 INFO L226 Difference]: Without dead ends: 28 [2020-07-17 22:03:05,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 22:03:05,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-07-17 22:03:05,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-07-17 22:03:05,876 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:03:05,876 INFO L82 GeneralOperation]: Start isEquivalent. First operand 28 states. Second operand 28 states. [2020-07-17 22:03:05,877 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand 28 states. [2020-07-17 22:03:05,877 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 28 states. [2020-07-17 22:03:05,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:03:05,881 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2020-07-17 22:03:05,882 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2020-07-17 22:03:05,882 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:03:05,882 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:03:05,883 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand 28 states. [2020-07-17 22:03:05,883 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 28 states. [2020-07-17 22:03:05,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:03:05,887 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2020-07-17 22:03:05,887 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2020-07-17 22:03:05,887 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:03:05,888 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:03:05,888 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:03:05,888 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:03:05,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-17 22:03:05,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2020-07-17 22:03:05,893 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 17 [2020-07-17 22:03:05,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:03:05,894 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2020-07-17 22:03:05,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 22:03:05,894 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2020-07-17 22:03:05,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-17 22:03:05,895 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:03:05,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:03:05,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:03:05,896 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:03:05,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:03:05,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1410255941, now seen corresponding path program 1 times [2020-07-17 22:03:05,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:03:05,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466662042] [2020-07-17 22:03:05,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:03:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:03:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:03:06,035 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 22:03:06,035 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 22:03:06,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:03:06,066 WARN L170 areAnnotationChecker]: fabs_doubleENTRY has no Hoare annotation [2020-07-17 22:03:06,066 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-17 22:03:06,066 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:03:06,067 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:03:06,067 WARN L170 areAnnotationChecker]: __signbit_doubleENTRY has no Hoare annotation [2020-07-17 22:03:06,067 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-17 22:03:06,067 WARN L170 areAnnotationChecker]: L27-2 has no Hoare annotation [2020-07-17 22:03:06,067 WARN L170 areAnnotationChecker]: L27-2 has no Hoare annotation [2020-07-17 22:03:06,067 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:03:06,067 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:03:06,068 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:03:06,068 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-17 22:03:06,068 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-17 22:03:06,068 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-17 22:03:06,068 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-17 22:03:06,068 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2020-07-17 22:03:06,069 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2020-07-17 22:03:06,069 WARN L170 areAnnotationChecker]: L32-1 has no Hoare annotation [2020-07-17 22:03:06,069 WARN L170 areAnnotationChecker]: L32-1 has no Hoare annotation [2020-07-17 22:03:06,069 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:03:06,069 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:03:06,069 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2020-07-17 22:03:06,069 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2020-07-17 22:03:06,070 WARN L170 areAnnotationChecker]: L17-3 has no Hoare annotation [2020-07-17 22:03:06,070 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-17 22:03:06,070 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-17 22:03:06,070 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-17 22:03:06,070 WARN L170 areAnnotationChecker]: L32-2 has no Hoare annotation [2020-07-17 22:03:06,070 WARN L170 areAnnotationChecker]: __signbit_doubleFINAL has no Hoare annotation [2020-07-17 22:03:06,070 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2020-07-17 22:03:06,071 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2020-07-17 22:03:06,071 WARN L170 areAnnotationChecker]: fabs_doubleFINAL has no Hoare annotation [2020-07-17 22:03:06,071 WARN L170 areAnnotationChecker]: __signbit_doubleEXIT has no Hoare annotation [2020-07-17 22:03:06,071 WARN L170 areAnnotationChecker]: L51-1 has no Hoare annotation [2020-07-17 22:03:06,071 WARN L170 areAnnotationChecker]: L51-1 has no Hoare annotation [2020-07-17 22:03:06,071 WARN L170 areAnnotationChecker]: L51-4 has no Hoare annotation [2020-07-17 22:03:06,071 WARN L170 areAnnotationChecker]: L51-4 has no Hoare annotation [2020-07-17 22:03:06,071 WARN L170 areAnnotationChecker]: fabs_doubleEXIT has no Hoare annotation [2020-07-17 22:03:06,072 WARN L170 areAnnotationChecker]: L51-2 has no Hoare annotation [2020-07-17 22:03:06,072 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-17 22:03:06,072 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-17 22:03:06,072 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:03:06,072 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:03:06,072 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-17 22:03:06,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:03:06 BoogieIcfgContainer [2020-07-17 22:03:06,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:03:06,078 INFO L168 Benchmark]: Toolchain (without parser) took 1966.76 ms. Allocated memory was 144.7 MB in the beginning and 233.3 MB in the end (delta: 88.6 MB). Free memory was 102.3 MB in the beginning and 169.3 MB in the end (delta: -66.9 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-07-17 22:03:06,079 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 22:03:06,080 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.74 ms. Allocated memory is still 144.7 MB. Free memory was 101.9 MB in the beginning and 90.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2020-07-17 22:03:06,081 INFO L168 Benchmark]: Boogie Preprocessor took 125.36 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 90.6 MB in the beginning and 178.5 MB in the end (delta: -87.9 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-17 22:03:06,082 INFO L168 Benchmark]: RCFGBuilder took 412.40 ms. Allocated memory is still 201.3 MB. Free memory was 178.5 MB in the beginning and 153.6 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-07-17 22:03:06,083 INFO L168 Benchmark]: TraceAbstraction took 1146.23 ms. Allocated memory was 201.3 MB in the beginning and 233.3 MB in the end (delta: 32.0 MB). Free memory was 152.9 MB in the beginning and 170.7 MB in the end (delta: -17.8 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-07-17 22:03:06,087 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 276.74 ms. Allocated memory is still 144.7 MB. Free memory was 101.9 MB in the beginning and 90.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.36 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 90.6 MB in the beginning and 178.5 MB in the end (delta: -87.9 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 412.40 ms. Allocated memory is still 201.3 MB. Free memory was 178.5 MB in the beginning and 153.6 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1146.23 ms. Allocated memory was 201.3 MB in the beginning and 233.3 MB in the end (delta: 32.0 MB). Free memory was 152.9 MB in the beginning and 170.7 MB in the end (delta: -17.8 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 52]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 51, overapproximation of someUnaryDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 35. Possible FailurePath: [L47] double x = -0.0; [L48] CALL, EXPR fabs_double(x) VAL [\old(x)=16] [L26] __uint32_t high; VAL [\old(x)=16, x=16] [L28] ieee_double_shape_type gh_u; [L29] gh_u.value = (x) [L30] EXPR gh_u.parts.msw [L30] (high) = gh_u.parts.msw [L33] ieee_double_shape_type sh_u; [L34] sh_u.value = (x) [L35] sh_u.parts.msw = (high & 0x7fffffff) [L36] EXPR sh_u.value [L36] (x) = sh_u.value [L38] return x; VAL [\old(x)=16, \result=16, high=22, x=16] [L48] RET, EXPR fabs_double(x) VAL [fabs_double(x)=16, x=16] [L48] double res = fabs_double(x); [L51] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=16, res == 0.0 && __signbit_double(res) == 0=0, x=16] [L51] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L52] __VERIFIER_error() VAL [res=16, x=16] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 21 SDslu, 5 SDs, 0 SdLazy, 31 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 592 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...