/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/float_req_bl_1381.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 14:42:30,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 14:42:30,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 14:42:30,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 14:42:30,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 14:42:30,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 14:42:30,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 14:42:30,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 14:42:30,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 14:42:30,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 14:42:30,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 14:42:30,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 14:42:30,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 14:42:30,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 14:42:30,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 14:42:30,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 14:42:30,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 14:42:30,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 14:42:30,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 14:42:30,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 14:42:30,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 14:42:30,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 14:42:30,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 14:42:30,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 14:42:30,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 14:42:30,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 14:42:30,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 14:42:30,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 14:42:30,098 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 [2020-07-10 14:42:30,135 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 14:42:30,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 14:42:30,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 14:42:30,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 14:42:30,140 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 14:42:30,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 14:42:30,141 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 14:42:30,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 14:42:30,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 14:42:30,143 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 14:42:30,143 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 14:42:30,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 14:42:30,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 14:42:30,144 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 14:42:30,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 14:42:30,144 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 14:42:30,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 14:42:30,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 14:42:30,145 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 14:42:30,147 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 14:42:30,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 14:42:30,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 14:42:30,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 14:42:30,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 14:42:30,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 14:42:30,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 14:42:30,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 14:42:30,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 14:42:30,149 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 14:42:30,149 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 14:42:30,442 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 14:42:30,453 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 14:42:30,456 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 14:42:30,457 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 14:42:30,457 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 14:42:30,458 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1381.c [2020-07-10 14:42:30,545 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/022244669/1e452c88f12440a5bd4bb1c2f8049410/FLAGec4a265aa [2020-07-10 14:42:31,029 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 14:42:31,029 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1381.c [2020-07-10 14:42:31,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/022244669/1e452c88f12440a5bd4bb1c2f8049410/FLAGec4a265aa [2020-07-10 14:42:31,380 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/022244669/1e452c88f12440a5bd4bb1c2f8049410 [2020-07-10 14:42:31,388 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 14:42:31,390 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 14:42:31,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 14:42:31,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 14:42:31,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 14:42:31,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 02:42:31" (1/1) ... [2020-07-10 14:42:31,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@714eb6f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:31, skipping insertion in model container [2020-07-10 14:42:31,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 02:42:31" (1/1) ... [2020-07-10 14:42:31,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 14:42:31,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 14:42:31,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 14:42:31,728 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 14:42:31,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 14:42:31,802 INFO L208 MainTranslator]: Completed translation [2020-07-10 14:42:31,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:31 WrapperNode [2020-07-10 14:42:31,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 14:42:31,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 14:42:31,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 14:42:31,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 14:42:31,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:31" (1/1) ... [2020-07-10 14:42:31,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:31" (1/1) ... [2020-07-10 14:42:31,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:31" (1/1) ... [2020-07-10 14:42:31,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:31" (1/1) ... [2020-07-10 14:42:31,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:31" (1/1) ... [2020-07-10 14:42:31,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:31" (1/1) ... [2020-07-10 14:42:31,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:31" (1/1) ... [2020-07-10 14:42:31,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 14:42:31,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 14:42:31,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 14:42:31,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 14:42:31,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:31" (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 [2020-07-10 14:42:32,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 14:42:32,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 14:42:32,061 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2020-07-10 14:42:32,061 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-07-10 14:42:32,061 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 14:42:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 14:42:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-10 14:42:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2020-07-10 14:42:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 14:42:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-10 14:42:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 14:42:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 14:42:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 14:42:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-10 14:42:32,062 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-07-10 14:42:32,063 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 14:42:32,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 14:42:32,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 14:42:32,423 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 14:42:32,423 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-10 14:42:32,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:42:32 BoogieIcfgContainer [2020-07-10 14:42:32,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 14:42:32,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 14:42:32,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 14:42:32,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 14:42:32,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 02:42:31" (1/3) ... [2020-07-10 14:42:32,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b791abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:42:32, skipping insertion in model container [2020-07-10 14:42:32,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:31" (2/3) ... [2020-07-10 14:42:32,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b791abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:42:32, skipping insertion in model container [2020-07-10 14:42:32,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:42:32" (3/3) ... [2020-07-10 14:42:32,436 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2020-07-10 14:42:32,447 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 14:42:32,454 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 14:42:32,479 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 14:42:32,503 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 14:42:32,503 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 14:42:32,503 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 14:42:32,503 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 14:42:32,504 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 14:42:32,504 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 14:42:32,504 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 14:42:32,504 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 14:42:32,525 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-07-10 14:42:32,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-10 14:42:32,532 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:42:32,533 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 14:42:32,534 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:42:32,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:42:32,541 INFO L82 PathProgramCache]: Analyzing trace with hash 247190453, now seen corresponding path program 1 times [2020-07-10 14:42:32,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:42:32,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201909731] [2020-07-10 14:42:32,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:42:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:42:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:42:32,760 INFO L280 TraceCheckUtils]: 0: Hoare triple {48#(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; {33#true} is VALID [2020-07-10 14:42:32,761 INFO L280 TraceCheckUtils]: 1: Hoare triple {33#true} assume true; {33#true} is VALID [2020-07-10 14:42:32,762 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {33#true} {33#true} #61#return; {33#true} is VALID [2020-07-10 14:42:32,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:42:32,812 INFO L280 TraceCheckUtils]: 0: Hoare triple {49#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;~y := #in~y;havoc ~ix~0;havoc ~iy~0; {33#true} is VALID [2020-07-10 14:42:32,814 INFO L280 TraceCheckUtils]: 1: Hoare triple {33#true} assume !true; {34#false} is VALID [2020-07-10 14:42:32,814 INFO L280 TraceCheckUtils]: 2: Hoare triple {34#false} assume !true; {34#false} is VALID [2020-07-10 14:42:32,815 INFO L280 TraceCheckUtils]: 3: Hoare triple {34#false} assume !true; {34#false} is VALID [2020-07-10 14:42:32,815 INFO L280 TraceCheckUtils]: 4: Hoare triple {34#false} #res := ~x; {34#false} is VALID [2020-07-10 14:42:32,816 INFO L280 TraceCheckUtils]: 5: Hoare triple {34#false} assume true; {34#false} is VALID [2020-07-10 14:42:32,816 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {34#false} {33#true} #57#return; {34#false} is VALID [2020-07-10 14:42:32,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:42:32,829 INFO L280 TraceCheckUtils]: 0: Hoare triple {33#true} ~x := #in~x;#res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {33#true} is VALID [2020-07-10 14:42:32,830 INFO L280 TraceCheckUtils]: 1: Hoare triple {33#true} assume true; {33#true} is VALID [2020-07-10 14:42:32,830 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {33#true} {34#false} #59#return; {34#false} is VALID [2020-07-10 14:42:32,832 INFO L263 TraceCheckUtils]: 0: Hoare triple {33#true} call ULTIMATE.init(); {48#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 14:42:32,833 INFO L280 TraceCheckUtils]: 1: Hoare triple {48#(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; {33#true} is VALID [2020-07-10 14:42:32,833 INFO L280 TraceCheckUtils]: 2: Hoare triple {33#true} assume true; {33#true} is VALID [2020-07-10 14:42:32,834 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33#true} {33#true} #61#return; {33#true} is VALID [2020-07-10 14:42:32,834 INFO L263 TraceCheckUtils]: 4: Hoare triple {33#true} call #t~ret9 := main(); {33#true} is VALID [2020-07-10 14:42:32,835 INFO L280 TraceCheckUtils]: 5: Hoare triple {33#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0);~y~0 := #t~nondet6;havoc #t~nondet6; {33#true} is VALID [2020-07-10 14:42:32,837 INFO L263 TraceCheckUtils]: 6: Hoare triple {33#true} call #t~ret7 := copysign_float(~x~0, ~y~0); {49#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-10 14:42:32,838 INFO L280 TraceCheckUtils]: 7: Hoare triple {49#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;~y := #in~y;havoc ~ix~0;havoc ~iy~0; {33#true} is VALID [2020-07-10 14:42:32,839 INFO L280 TraceCheckUtils]: 8: Hoare triple {33#true} assume !true; {34#false} is VALID [2020-07-10 14:42:32,839 INFO L280 TraceCheckUtils]: 9: Hoare triple {34#false} assume !true; {34#false} is VALID [2020-07-10 14:42:32,840 INFO L280 TraceCheckUtils]: 10: Hoare triple {34#false} assume !true; {34#false} is VALID [2020-07-10 14:42:32,840 INFO L280 TraceCheckUtils]: 11: Hoare triple {34#false} #res := ~x; {34#false} is VALID [2020-07-10 14:42:32,840 INFO L280 TraceCheckUtils]: 12: Hoare triple {34#false} assume true; {34#false} is VALID [2020-07-10 14:42:32,841 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {34#false} {33#true} #57#return; {34#false} is VALID [2020-07-10 14:42:32,841 INFO L280 TraceCheckUtils]: 14: Hoare triple {34#false} ~res~0 := #t~ret7;havoc #t~ret7; {34#false} is VALID [2020-07-10 14:42:32,842 INFO L263 TraceCheckUtils]: 15: Hoare triple {34#false} call #t~ret8 := isnan_float(~res~0); {33#true} is VALID [2020-07-10 14:42:32,842 INFO L280 TraceCheckUtils]: 16: Hoare triple {33#true} ~x := #in~x;#res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {33#true} is VALID [2020-07-10 14:42:32,842 INFO L280 TraceCheckUtils]: 17: Hoare triple {33#true} assume true; {33#true} is VALID [2020-07-10 14:42:32,843 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {33#true} {34#false} #59#return; {34#false} is VALID [2020-07-10 14:42:32,843 INFO L280 TraceCheckUtils]: 19: Hoare triple {34#false} assume -2147483648 <= #t~ret8 && #t~ret8 <= 2147483647; {34#false} is VALID [2020-07-10 14:42:32,844 INFO L280 TraceCheckUtils]: 20: Hoare triple {34#false} assume 0 == #t~ret8;havoc #t~ret8; {34#false} is VALID [2020-07-10 14:42:32,844 INFO L280 TraceCheckUtils]: 21: Hoare triple {34#false} assume !false; {34#false} is VALID [2020-07-10 14:42:32,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 14:42:32,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201909731] [2020-07-10 14:42:32,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 14:42:32,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-10 14:42:32,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763428550] [2020-07-10 14:42:32,857 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-07-10 14:42:32,861 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 14:42:32,865 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-10 14:42:32,909 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:42:32,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-10 14:42:32,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 14:42:32,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-10 14:42:32,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-10 14:42:32,922 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 4 states. [2020-07-10 14:42:33,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:42:33,267 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2020-07-10 14:42:33,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-10 14:42:33,268 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-07-10 14:42:33,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 14:42:33,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 14:42:33,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 64 transitions. [2020-07-10 14:42:33,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 14:42:33,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 64 transitions. [2020-07-10 14:42:33,320 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 64 transitions. [2020-07-10 14:42:33,432 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 64 edges. 64 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:42:33,453 INFO L225 Difference]: With dead ends: 52 [2020-07-10 14:42:33,454 INFO L226 Difference]: Without dead ends: 26 [2020-07-10 14:42:33,458 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-10 14:42:33,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-07-10 14:42:33,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-07-10 14:42:33,514 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 14:42:33,514 INFO L82 GeneralOperation]: Start isEquivalent. First operand 26 states. Second operand 26 states. [2020-07-10 14:42:33,515 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 26 states. [2020-07-10 14:42:33,515 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 26 states. [2020-07-10 14:42:33,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:42:33,519 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2020-07-10 14:42:33,520 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2020-07-10 14:42:33,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:42:33,520 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:42:33,521 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 26 states. [2020-07-10 14:42:33,521 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 26 states. [2020-07-10 14:42:33,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:42:33,525 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2020-07-10 14:42:33,525 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2020-07-10 14:42:33,526 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:42:33,526 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:42:33,526 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 14:42:33,526 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 14:42:33,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-07-10 14:42:33,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2020-07-10 14:42:33,531 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 22 [2020-07-10 14:42:33,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 14:42:33,532 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2020-07-10 14:42:33,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-10 14:42:33,532 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2020-07-10 14:42:33,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-10 14:42:33,533 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:42:33,533 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] [2020-07-10 14:42:33,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 14:42:33,534 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:42:33,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:42:33,535 INFO L82 PathProgramCache]: Analyzing trace with hash 730707327, now seen corresponding path program 1 times [2020-07-10 14:42:33,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:42:33,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118957885] [2020-07-10 14:42:33,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:42:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 14:42:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 14:42:33,664 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-10 14:42:33,665 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 14:42:33,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 14:42:33,693 WARN L170 areAnnotationChecker]: isnan_floatENTRY has no Hoare annotation [2020-07-10 14:42:33,694 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 14:42:33,694 WARN L170 areAnnotationChecker]: copysign_floatENTRY has no Hoare annotation [2020-07-10 14:42:33,694 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 14:42:33,694 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 14:42:33,694 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 14:42:33,694 WARN L170 areAnnotationChecker]: isnan_floatFINAL has no Hoare annotation [2020-07-10 14:42:33,694 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 14:42:33,695 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2020-07-10 14:42:33,695 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2020-07-10 14:42:33,695 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 14:42:33,695 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 14:42:33,695 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2020-07-10 14:42:33,695 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2020-07-10 14:42:33,696 WARN L170 areAnnotationChecker]: isnan_floatEXIT has no Hoare annotation [2020-07-10 14:42:33,696 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 14:42:33,696 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-10 14:42:33,696 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-10 14:42:33,696 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-10 14:42:33,696 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-10 14:42:33,696 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 14:42:33,697 WARN L170 areAnnotationChecker]: L45-1 has no Hoare annotation [2020-07-10 14:42:33,697 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-10 14:42:33,697 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-10 14:42:33,697 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-10 14:42:33,698 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2020-07-10 14:42:33,698 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2020-07-10 14:42:33,698 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-10 14:42:33,698 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-10 14:42:33,698 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-10 14:42:33,698 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-10 14:42:33,699 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-10 14:42:33,699 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-10 14:42:33,699 WARN L170 areAnnotationChecker]: L24-2 has no Hoare annotation [2020-07-10 14:42:33,699 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-10 14:42:33,699 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-10 14:42:33,699 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 14:42:33,700 WARN L170 areAnnotationChecker]: copysign_floatFINAL has no Hoare annotation [2020-07-10 14:42:33,700 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 14:42:33,700 WARN L170 areAnnotationChecker]: copysign_floatEXIT has no Hoare annotation [2020-07-10 14:42:33,700 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. [2020-07-10 14:42:33,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 02:42:33 BoogieIcfgContainer [2020-07-10 14:42:33,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 14:42:33,711 INFO L168 Benchmark]: Toolchain (without parser) took 2320.79 ms. Allocated memory was 146.8 MB in the beginning and 233.3 MB in the end (delta: 86.5 MB). Free memory was 103.7 MB in the beginning and 168.6 MB in the end (delta: -64.9 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-07-10 14:42:33,712 INFO L168 Benchmark]: CDTParser took 1.39 ms. Allocated memory is still 146.8 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-10 14:42:33,713 INFO L168 Benchmark]: CACSL2BoogieTranslator took 412.80 ms. Allocated memory is still 146.8 MB. Free memory was 103.5 MB in the beginning and 92.2 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2020-07-10 14:42:33,717 INFO L168 Benchmark]: Boogie Preprocessor took 185.87 ms. Allocated memory was 146.8 MB in the beginning and 206.6 MB in the end (delta: 59.8 MB). Free memory was 92.2 MB in the beginning and 184.1 MB in the end (delta: -91.9 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-10 14:42:33,718 INFO L168 Benchmark]: RCFGBuilder took 437.32 ms. Allocated memory is still 206.6 MB. Free memory was 184.1 MB in the beginning and 160.1 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-07-10 14:42:33,720 INFO L168 Benchmark]: TraceAbstraction took 1277.29 ms. Allocated memory was 206.6 MB in the beginning and 233.3 MB in the end (delta: 26.7 MB). Free memory was 160.1 MB in the beginning and 168.6 MB in the end (delta: -8.4 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. [2020-07-10 14:42:33,727 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 1.39 ms. Allocated memory is still 146.8 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 412.80 ms. Allocated memory is still 146.8 MB. Free memory was 103.5 MB in the beginning and 92.2 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 185.87 ms. Allocated memory was 146.8 MB in the beginning and 206.6 MB in the end (delta: 59.8 MB). Free memory was 92.2 MB in the beginning and 184.1 MB in the end (delta: -91.9 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 437.32 ms. Allocated memory is still 206.6 MB. Free memory was 184.1 MB in the beginning and 160.1 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1277.29 ms. Allocated memory was 206.6 MB in the beginning and 233.3 MB in the end (delta: 26.7 MB). Free memory was 160.1 MB in the beginning and 168.6 MB in the end (delta: -8.4 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 49]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 33, overapproximation of bitwiseOr at line 26, overapproximation of someBinaryArithmeticFLOAToperation at line 43. Possible FailurePath: [L43] float x = 0.0f / 0.0f; [L44] float y = __VERIFIER_nondet_float(); [L45] CALL, EXPR copysign_float(x, y) VAL [\old(x)=15, \old(y)=13] [L13] __uint32_t ix, iy; VAL [\old(x)=15, \old(y)=13, x=15, y=13] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (ix) = gf_u.word [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (y) [L22] EXPR gf_u.word [L22] (iy) = gf_u.word [L25] ieee_float_shape_type sf_u; [L26] sf_u.word = ((ix & 0x7fffffff) | (iy & 0x80000000)) [L27] EXPR sf_u.value [L27] (x) = sf_u.value [L29] return x; VAL [\old(x)=15, \old(y)=13, \result=10, ix=17, iy=7, x=10, y=13] [L45] RET, EXPR copysign_float(x, y) VAL [copysign_float(x, y)=10, x=15, y=13] [L45] float res = copysign_float(x, y); [L48] CALL, EXPR isnan_float(res) VAL [\old(x)=10] [L33] return x != x; VAL [\old(x)=10, \result=0, x=10] [L48] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=10, x=15, y=13] [L48] COND TRUE !isnan_float(res) [L49] __VERIFIER_error() VAL [res=10, x=15, y=13] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 19 SDslu, 5 SDs, 0 SdLazy, 27 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 882 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...