/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1381.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 18:35:48,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 18:35:48,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 18:35:48,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 18:35:48,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 18:35:48,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 18:35:48,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 18:35:48,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 18:35:48,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 18:35:48,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 18:35:48,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 18:35:48,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 18:35:48,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 18:35:48,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 18:35:48,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 18:35:48,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 18:35:48,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 18:35:48,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 18:35:48,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 18:35:48,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 18:35:48,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 18:35:48,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 18:35:48,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 18:35:48,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 18:35:48,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 18:35:48,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-10 18:35:48,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-10 18:35:48,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-10 18:35:48,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-10 18:35:48,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-10 18:35:48,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-10 18:35:48,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-10 18:35:48,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-10 18:35:48,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 18:35:48,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 18:35:48,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 18:35:48,160 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-10 18:35:48,169 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 18:35:48,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 18:35:48,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 18:35:48,171 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 18:35:48,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 18:35:48,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 18:35:48,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 18:35:48,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 18:35:48,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 18:35:48,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 18:35:48,172 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 18:35:48,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 18:35:48,173 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 18:35:48,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 18:35:48,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 18:35:48,173 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-10 18:35:48,174 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 18:35:48,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 18:35:48,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 18:35:48,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 18:35:48,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-10 18:35:48,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 18:35:48,175 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-10 18:35:48,454 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 18:35:48,473 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 18:35:48,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 18:35:48,480 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 18:35:48,480 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 18:35:48,481 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1381.c [2020-07-10 18:35:48,561 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/084067439/c71ac4552ad94ef9987b173330fe4555/FLAGd020951fa [2020-07-10 18:35:49,027 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 18:35:49,028 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1381.c [2020-07-10 18:35:49,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/084067439/c71ac4552ad94ef9987b173330fe4555/FLAGd020951fa [2020-07-10 18:35:49,383 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/084067439/c71ac4552ad94ef9987b173330fe4555 [2020-07-10 18:35:49,395 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 18:35:49,398 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 18:35:49,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 18:35:49,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 18:35:49,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 18:35:49,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 06:35:49" (1/1) ... [2020-07-10 18:35:49,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e5785b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:49, skipping insertion in model container [2020-07-10 18:35:49,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 06:35:49" (1/1) ... [2020-07-10 18:35:49,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 18:35:49,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 18:35:49,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 18:35:49,647 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 18:35:49,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 18:35:49,688 INFO L208 MainTranslator]: Completed translation [2020-07-10 18:35:49,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:49 WrapperNode [2020-07-10 18:35:49,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 18:35:49,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 18:35:49,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 18:35:49,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 18:35:49,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:49" (1/1) ... [2020-07-10 18:35:49,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:49" (1/1) ... [2020-07-10 18:35:49,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:49" (1/1) ... [2020-07-10 18:35:49,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:49" (1/1) ... [2020-07-10 18:35:49,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:49" (1/1) ... [2020-07-10 18:35:49,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:49" (1/1) ... [2020-07-10 18:35:49,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:49" (1/1) ... [2020-07-10 18:35:49,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 18:35:49,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 18:35:49,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 18:35:49,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 18:35:49,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:49" (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 18:35:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 18:35:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 18:35:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2020-07-10 18:35:49,902 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-07-10 18:35:49,902 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 18:35:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 18:35:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-10 18:35:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2020-07-10 18:35:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 18:35:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-10 18:35:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 18:35:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 18:35:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 18:35:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-10 18:35:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-07-10 18:35:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 18:35:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 18:35:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 18:35:50,361 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 18:35:50,362 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-10 18:35:50,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 06:35:50 BoogieIcfgContainer [2020-07-10 18:35:50,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 18:35:50,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 18:35:50,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 18:35:50,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 18:35:50,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 06:35:49" (1/3) ... [2020-07-10 18:35:50,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5429e25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 06:35:50, skipping insertion in model container [2020-07-10 18:35:50,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:49" (2/3) ... [2020-07-10 18:35:50,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5429e25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 06:35:50, skipping insertion in model container [2020-07-10 18:35:50,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 06:35:50" (3/3) ... [2020-07-10 18:35:50,375 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2020-07-10 18:35:50,385 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-10 18:35:50,394 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 18:35:50,408 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 18:35:50,427 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 18:35:50,428 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 18:35:50,428 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-10 18:35:50,428 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 18:35:50,428 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 18:35:50,429 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 18:35:50,429 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 18:35:50,429 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 18:35:50,446 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2020-07-10 18:35:50,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-10 18:35:50,458 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 18:35:50,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 18:35:50,460 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 18:35:50,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 18:35:50,467 INFO L82 PathProgramCache]: Analyzing trace with hash 658521785, now seen corresponding path program 1 times [2020-07-10 18:35:50,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 18:35:50,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146709066] [2020-07-10 18:35:50,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 18:35:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:50,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:50,735 INFO L280 TraceCheckUtils]: 0: Hoare triple {91#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {70#true} is VALID [2020-07-10 18:35:50,735 INFO L280 TraceCheckUtils]: 1: Hoare triple {70#true} #valid := #valid[0 := 0]; {70#true} is VALID [2020-07-10 18:35:50,736 INFO L280 TraceCheckUtils]: 2: Hoare triple {70#true} assume 0 < #StackHeapBarrier; {70#true} is VALID [2020-07-10 18:35:50,736 INFO L280 TraceCheckUtils]: 3: Hoare triple {70#true} assume true; {70#true} is VALID [2020-07-10 18:35:50,739 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {70#true} {70#true} #98#return; {70#true} is VALID [2020-07-10 18:35:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:50,798 INFO L280 TraceCheckUtils]: 0: Hoare triple {92#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {70#true} is VALID [2020-07-10 18:35:50,798 INFO L280 TraceCheckUtils]: 1: Hoare triple {70#true} ~y := #in~y; {70#true} is VALID [2020-07-10 18:35:50,799 INFO L280 TraceCheckUtils]: 2: Hoare triple {70#true} havoc ~ix~0; {70#true} is VALID [2020-07-10 18:35:50,799 INFO L280 TraceCheckUtils]: 3: Hoare triple {70#true} havoc ~iy~0; {70#true} is VALID [2020-07-10 18:35:50,802 INFO L280 TraceCheckUtils]: 4: Hoare triple {70#true} assume !true; {71#false} is VALID [2020-07-10 18:35:50,802 INFO L280 TraceCheckUtils]: 5: Hoare triple {71#false} assume !true; {71#false} is VALID [2020-07-10 18:35:50,803 INFO L280 TraceCheckUtils]: 6: Hoare triple {71#false} assume !true; {71#false} is VALID [2020-07-10 18:35:50,803 INFO L280 TraceCheckUtils]: 7: Hoare triple {71#false} #res := ~x; {71#false} is VALID [2020-07-10 18:35:50,804 INFO L280 TraceCheckUtils]: 8: Hoare triple {71#false} assume true; {71#false} is VALID [2020-07-10 18:35:50,804 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {71#false} {70#true} #94#return; {71#false} is VALID [2020-07-10 18:35:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:50,857 INFO L280 TraceCheckUtils]: 0: Hoare triple {70#true} ~x := #in~x; {70#true} is VALID [2020-07-10 18:35:50,858 INFO L280 TraceCheckUtils]: 1: Hoare triple {70#true} #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {70#true} is VALID [2020-07-10 18:35:50,860 INFO L280 TraceCheckUtils]: 2: Hoare triple {70#true} assume true; {70#true} is VALID [2020-07-10 18:35:50,861 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {70#true} {71#false} #96#return; {71#false} is VALID [2020-07-10 18:35:50,864 INFO L263 TraceCheckUtils]: 0: Hoare triple {70#true} call ULTIMATE.init(); {91#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 18:35:50,865 INFO L280 TraceCheckUtils]: 1: Hoare triple {91#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {70#true} is VALID [2020-07-10 18:35:50,865 INFO L280 TraceCheckUtils]: 2: Hoare triple {70#true} #valid := #valid[0 := 0]; {70#true} is VALID [2020-07-10 18:35:50,866 INFO L280 TraceCheckUtils]: 3: Hoare triple {70#true} assume 0 < #StackHeapBarrier; {70#true} is VALID [2020-07-10 18:35:50,866 INFO L280 TraceCheckUtils]: 4: Hoare triple {70#true} assume true; {70#true} is VALID [2020-07-10 18:35:50,867 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {70#true} {70#true} #98#return; {70#true} is VALID [2020-07-10 18:35:50,867 INFO L263 TraceCheckUtils]: 6: Hoare triple {70#true} call #t~ret9 := main(); {70#true} is VALID [2020-07-10 18:35:50,868 INFO L280 TraceCheckUtils]: 7: Hoare triple {70#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); {70#true} is VALID [2020-07-10 18:35:50,869 INFO L280 TraceCheckUtils]: 8: Hoare triple {70#true} ~y~0 := #t~nondet6; {70#true} is VALID [2020-07-10 18:35:50,869 INFO L280 TraceCheckUtils]: 9: Hoare triple {70#true} havoc #t~nondet6; {70#true} is VALID [2020-07-10 18:35:50,872 INFO L263 TraceCheckUtils]: 10: Hoare triple {70#true} call #t~ret7 := copysign_float(~x~0, ~y~0); {92#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-10 18:35:50,873 INFO L280 TraceCheckUtils]: 11: Hoare triple {92#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {70#true} is VALID [2020-07-10 18:35:50,873 INFO L280 TraceCheckUtils]: 12: Hoare triple {70#true} ~y := #in~y; {70#true} is VALID [2020-07-10 18:35:50,874 INFO L280 TraceCheckUtils]: 13: Hoare triple {70#true} havoc ~ix~0; {70#true} is VALID [2020-07-10 18:35:50,874 INFO L280 TraceCheckUtils]: 14: Hoare triple {70#true} havoc ~iy~0; {70#true} is VALID [2020-07-10 18:35:50,877 INFO L280 TraceCheckUtils]: 15: Hoare triple {70#true} assume !true; {71#false} is VALID [2020-07-10 18:35:50,877 INFO L280 TraceCheckUtils]: 16: Hoare triple {71#false} assume !true; {71#false} is VALID [2020-07-10 18:35:50,878 INFO L280 TraceCheckUtils]: 17: Hoare triple {71#false} assume !true; {71#false} is VALID [2020-07-10 18:35:50,878 INFO L280 TraceCheckUtils]: 18: Hoare triple {71#false} #res := ~x; {71#false} is VALID [2020-07-10 18:35:50,879 INFO L280 TraceCheckUtils]: 19: Hoare triple {71#false} assume true; {71#false} is VALID [2020-07-10 18:35:50,879 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {71#false} {70#true} #94#return; {71#false} is VALID [2020-07-10 18:35:50,880 INFO L280 TraceCheckUtils]: 21: Hoare triple {71#false} ~res~0 := #t~ret7; {71#false} is VALID [2020-07-10 18:35:50,880 INFO L280 TraceCheckUtils]: 22: Hoare triple {71#false} havoc #t~ret7; {71#false} is VALID [2020-07-10 18:35:50,880 INFO L263 TraceCheckUtils]: 23: Hoare triple {71#false} call #t~ret8 := isnan_float(~res~0); {70#true} is VALID [2020-07-10 18:35:50,881 INFO L280 TraceCheckUtils]: 24: Hoare triple {70#true} ~x := #in~x; {70#true} is VALID [2020-07-10 18:35:50,881 INFO L280 TraceCheckUtils]: 25: Hoare triple {70#true} #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {70#true} is VALID [2020-07-10 18:35:50,882 INFO L280 TraceCheckUtils]: 26: Hoare triple {70#true} assume true; {70#true} is VALID [2020-07-10 18:35:50,882 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {70#true} {71#false} #96#return; {71#false} is VALID [2020-07-10 18:35:50,882 INFO L280 TraceCheckUtils]: 28: Hoare triple {71#false} assume -2147483648 <= #t~ret8 && #t~ret8 <= 2147483647; {71#false} is VALID [2020-07-10 18:35:50,883 INFO L280 TraceCheckUtils]: 29: Hoare triple {71#false} assume 0 == #t~ret8; {71#false} is VALID [2020-07-10 18:35:50,888 INFO L280 TraceCheckUtils]: 30: Hoare triple {71#false} havoc #t~ret8; {71#false} is VALID [2020-07-10 18:35:50,889 INFO L280 TraceCheckUtils]: 31: Hoare triple {71#false} assume !false; {71#false} is VALID [2020-07-10 18:35:50,896 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 18:35:50,901 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 18:35:50,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146709066] [2020-07-10 18:35:50,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 18:35:50,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-10 18:35:50,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123497849] [2020-07-10 18:35:50,921 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-07-10 18:35:50,927 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 18:35:50,932 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-10 18:35:50,999 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:50,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-10 18:35:51,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 18:35:51,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-10 18:35:51,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-10 18:35:51,010 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 4 states. [2020-07-10 18:35:51,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:51,581 INFO L93 Difference]: Finished difference Result 118 states and 130 transitions. [2020-07-10 18:35:51,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-10 18:35:51,581 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-07-10 18:35:51,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 18:35:51,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 18:35:51,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2020-07-10 18:35:51,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 18:35:51,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2020-07-10 18:35:51,636 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 130 transitions. [2020-07-10 18:35:51,796 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 130 edges. 130 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:51,819 INFO L225 Difference]: With dead ends: 118 [2020-07-10 18:35:51,819 INFO L226 Difference]: Without dead ends: 60 [2020-07-10 18:35:51,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-10 18:35:51,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-07-10 18:35:51,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-07-10 18:35:51,925 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 18:35:51,926 INFO L82 GeneralOperation]: Start isEquivalent. First operand 60 states. Second operand 60 states. [2020-07-10 18:35:51,926 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states. Second operand 60 states. [2020-07-10 18:35:51,926 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 60 states. [2020-07-10 18:35:51,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:51,932 INFO L93 Difference]: Finished difference Result 60 states and 59 transitions. [2020-07-10 18:35:51,933 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 59 transitions. [2020-07-10 18:35:51,934 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 18:35:51,934 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 18:35:51,934 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states. Second operand 60 states. [2020-07-10 18:35:51,934 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 60 states. [2020-07-10 18:35:51,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:51,940 INFO L93 Difference]: Finished difference Result 60 states and 59 transitions. [2020-07-10 18:35:51,940 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 59 transitions. [2020-07-10 18:35:51,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 18:35:51,942 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 18:35:51,942 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 18:35:51,942 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 18:35:51,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-07-10 18:35:51,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 59 transitions. [2020-07-10 18:35:51,948 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 59 transitions. Word has length 32 [2020-07-10 18:35:51,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 18:35:51,949 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 59 transitions. [2020-07-10 18:35:51,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-10 18:35:51,949 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 60 states and 59 transitions. [2020-07-10 18:35:52,023 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 59 edges. 59 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:52,024 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 59 transitions. [2020-07-10 18:35:52,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-10 18:35:52,026 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 18:35:52,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 18:35:52,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 18:35:52,027 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 18:35:52,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 18:35:52,027 INFO L82 PathProgramCache]: Analyzing trace with hash 418826666, now seen corresponding path program 1 times [2020-07-10 18:35:52,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 18:35:52,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177035152] [2020-07-10 18:35:52,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 18:35:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 18:35:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 18:35:52,168 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 18:35:52,168 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-10 18:35:52,169 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 18:35:52,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 18:35:52,187 WARN L170 areAnnotationChecker]: isnan_floatENTRY has no Hoare annotation [2020-07-10 18:35:52,187 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 18:35:52,188 WARN L170 areAnnotationChecker]: copysign_floatENTRY has no Hoare annotation [2020-07-10 18:35:52,188 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 18:35:52,188 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 18:35:52,188 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 18:35:52,188 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2020-07-10 18:35:52,188 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 18:35:52,189 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2020-07-10 18:35:52,189 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 18:35:52,189 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 18:35:52,189 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-10 18:35:52,189 WARN L170 areAnnotationChecker]: isnan_floatFINAL has no Hoare annotation [2020-07-10 18:35:52,189 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-10 18:35:52,190 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-10 18:35:52,190 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 18:35:52,190 WARN L170 areAnnotationChecker]: L44-1 has no Hoare annotation [2020-07-10 18:35:52,190 WARN L170 areAnnotationChecker]: isnan_floatEXIT has no Hoare annotation [2020-07-10 18:35:52,190 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 18:35:52,190 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-10 18:35:52,191 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2020-07-10 18:35:52,191 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2020-07-10 18:35:52,191 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-10 18:35:52,191 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 18:35:52,191 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2020-07-10 18:35:52,191 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2020-07-10 18:35:52,191 WARN L170 areAnnotationChecker]: L45-1 has no Hoare annotation [2020-07-10 18:35:52,192 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-10 18:35:52,192 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-10 18:35:52,192 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-10 18:35:52,192 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-10 18:35:52,192 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-10 18:35:52,193 WARN L170 areAnnotationChecker]: L45-2 has no Hoare annotation [2020-07-10 18:35:52,193 WARN L170 areAnnotationChecker]: L48-3 has no Hoare annotation [2020-07-10 18:35:52,193 WARN L170 areAnnotationChecker]: L48-4 has no Hoare annotation [2020-07-10 18:35:52,193 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-10 18:35:52,193 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-10 18:35:52,193 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2020-07-10 18:35:52,194 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2020-07-10 18:35:52,194 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-10 18:35:52,194 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-10 18:35:52,194 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-10 18:35:52,194 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-10 18:35:52,195 WARN L170 areAnnotationChecker]: L53 has no Hoare annotation [2020-07-10 18:35:52,195 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-10 18:35:52,195 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-10 18:35:52,195 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-10 18:35:52,195 WARN L170 areAnnotationChecker]: L24-2 has no Hoare annotation [2020-07-10 18:35:52,195 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2020-07-10 18:35:52,196 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 18:35:52,196 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2020-07-10 18:35:52,196 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-10 18:35:52,196 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-10 18:35:52,196 WARN L170 areAnnotationChecker]: copysign_floatFINAL has no Hoare annotation [2020-07-10 18:35:52,196 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 18:35:52,197 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-10 18:35:52,197 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2020-07-10 18:35:52,197 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-10 18:35:52,197 WARN L170 areAnnotationChecker]: copysign_floatEXIT has no Hoare annotation [2020-07-10 18:35:52,197 WARN L170 areAnnotationChecker]: L17-3 has no Hoare annotation [2020-07-10 18:35:52,197 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2020-07-10 18:35:52,198 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2020-07-10 18:35:52,198 WARN L170 areAnnotationChecker]: L15-1 has no Hoare annotation [2020-07-10 18:35:52,198 WARN L170 areAnnotationChecker]: L22-3 has no Hoare annotation [2020-07-10 18:35:52,198 WARN L170 areAnnotationChecker]: L27-2 has no Hoare annotation [2020-07-10 18:35:52,198 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2020-07-10 18:35:52,198 WARN L170 areAnnotationChecker]: L20-1 has no Hoare annotation [2020-07-10 18:35:52,198 WARN L170 areAnnotationChecker]: L27-3 has no Hoare annotation [2020-07-10 18:35:52,199 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-10 18:35:52,199 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-10 18:35:52,199 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2020-07-10 18:35:52,199 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2020-07-10 18:35:52,199 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-10 18:35:52,199 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-10 18:35:52,200 WARN L170 areAnnotationChecker]: L25-2 has no Hoare annotation [2020-07-10 18:35:52,200 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-10 18:35:52,200 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-10 18:35:52,200 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 18:35:52,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 06:35:52 BoogieIcfgContainer [2020-07-10 18:35:52,204 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 18:35:52,207 INFO L168 Benchmark]: Toolchain (without parser) took 2809.62 ms. Allocated memory was 143.1 MB in the beginning and 230.2 MB in the end (delta: 87.0 MB). Free memory was 101.8 MB in the beginning and 99.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 89.7 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:52,209 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 143.1 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-10 18:35:52,210 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.11 ms. Allocated memory is still 143.1 MB. Free memory was 101.6 MB in the beginning and 90.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:52,211 INFO L168 Benchmark]: Boogie Preprocessor took 140.66 ms. Allocated memory was 143.1 MB in the beginning and 201.3 MB in the end (delta: 58.2 MB). Free memory was 90.6 MB in the beginning and 178.6 MB in the end (delta: -88.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:52,211 INFO L168 Benchmark]: RCFGBuilder took 536.02 ms. Allocated memory is still 201.3 MB. Free memory was 178.6 MB in the beginning and 148.3 MB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:52,212 INFO L168 Benchmark]: TraceAbstraction took 1836.77 ms. Allocated memory was 201.3 MB in the beginning and 230.2 MB in the end (delta: 28.8 MB). Free memory was 147.6 MB in the beginning and 99.1 MB in the end (delta: 48.5 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:52,216 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 0.27 ms. Allocated memory is still 143.1 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 288.11 ms. Allocated memory is still 143.1 MB. Free memory was 101.6 MB in the beginning and 90.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.66 ms. Allocated memory was 143.1 MB in the beginning and 201.3 MB in the end (delta: 58.2 MB). Free memory was 90.6 MB in the beginning and 178.6 MB in the end (delta: -88.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 536.02 ms. Allocated memory is still 201.3 MB. Free memory was 178.6 MB in the beginning and 148.3 MB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1836.77 ms. Allocated memory was 201.3 MB in the beginning and 230.2 MB in the end (delta: 28.8 MB). Free memory was 147.6 MB in the beginning and 99.1 MB in the end (delta: 48.5 MB). Peak memory consumption was 77.3 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) [L13] __uint32_t ix, iy; [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; [L45] RET, EXPR copysign_float(x, y) [L45] float res = copysign_float(x, y); [L48] CALL, EXPR isnan_float(res) [L33] return x != x; [L48] RET, EXPR isnan_float(res) [L48] COND TRUE !isnan_float(res) [L49] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 63 SDtfs, 21 SDslu, 35 SDs, 0 SdLazy, 68 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...