/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 0.1.25-267fbe0 [2020-07-17 22:06:04,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:06:04,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:06:04,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:06:04,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:06:04,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:06:04,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:06:04,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:06:04,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:06:04,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:06:04,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:06:04,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:06:04,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:06:04,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:06:04,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:06:04,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:06:04,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:06:04,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:06:04,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:06:04,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:06:04,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:06:04,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:06:04,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:06:04,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:06:04,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 22:06:04,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 22:06:04,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 22:06:04,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 22:06:04,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 22:06:04,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 22:06:04,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 22:06:04,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 22:06:04,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 22:06:04,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 22:06:04,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 22:06:04,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 22:06:04,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 22:06:04,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 22:06:04,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:06:04,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:06:04,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:06:04,490 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 22:06:04,504 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:06:04,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:06:04,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:06:04,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:06:04,506 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:06:04,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:06:04,506 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:06:04,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:06:04,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:06:04,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:06:04,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:06:04,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:06:04,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:06:04,508 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:06:04,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:06:04,508 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:06:04,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:06:04,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:06:04,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:06:04,509 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:06:04,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:06:04,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:06:04,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:06:04,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:06:04,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:06:04,510 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:06:04,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:06:04,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:06:04,511 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:06:04,511 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:06:04,877 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:06:04,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:06:04,896 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:06:04,898 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:06:04,898 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:06:04,899 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1381.c [2020-07-17 22:06:04,970 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88cbb0da5/f8d9c18de0634bba982c97633a7bb65f/FLAG6f8d4f71b [2020-07-17 22:06:05,460 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:06:05,461 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1381.c [2020-07-17 22:06:05,468 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88cbb0da5/f8d9c18de0634bba982c97633a7bb65f/FLAG6f8d4f71b [2020-07-17 22:06:05,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88cbb0da5/f8d9c18de0634bba982c97633a7bb65f [2020-07-17 22:06:05,817 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:06:05,819 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:06:05,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:06:05,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:06:05,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:06:05,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:06:05" (1/1) ... [2020-07-17 22:06:05,830 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 17.07 10:06:05, skipping insertion in model container [2020-07-17 22:06:05,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:06:05" (1/1) ... [2020-07-17 22:06:05,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:06:05,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:06:06,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:06:06,091 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:06:06,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:06:06,153 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:06:06,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:06:06 WrapperNode [2020-07-17 22:06:06,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:06:06,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:06:06,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:06:06,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:06:06,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:06:06" (1/1) ... [2020-07-17 22:06:06,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:06:06" (1/1) ... [2020-07-17 22:06:06,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:06:06" (1/1) ... [2020-07-17 22:06:06,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:06:06" (1/1) ... [2020-07-17 22:06:06,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:06:06" (1/1) ... [2020-07-17 22:06:06,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:06:06" (1/1) ... [2020-07-17 22:06:06,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:06:06" (1/1) ... [2020-07-17 22:06:06,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:06:06,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:06:06,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:06:06,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:06:06,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:06:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:06:06,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:06:06,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:06:06,414 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2020-07-17 22:06:06,414 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-07-17 22:06:06,414 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:06:06,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:06:06,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-17 22:06:06,415 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2020-07-17 22:06:06,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 22:06:06,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 22:06:06,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:06:06,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:06:06,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:06:06,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 22:06:06,416 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-07-17 22:06:06,416 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:06:06,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:06:06,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:06:06,806 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:06:06,807 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-17 22:06:06,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:06:06 BoogieIcfgContainer [2020-07-17 22:06:06,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:06:06,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:06:06,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:06:06,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:06:06,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:06:05" (1/3) ... [2020-07-17 22:06:06,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9fe412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:06:06, skipping insertion in model container [2020-07-17 22:06:06,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:06:06" (2/3) ... [2020-07-17 22:06:06,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9fe412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:06:06, skipping insertion in model container [2020-07-17 22:06:06,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:06:06" (3/3) ... [2020-07-17 22:06:06,836 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2020-07-17 22:06:06,847 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:06:06,854 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:06:06,869 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:06:06,891 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:06:06,891 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:06:06,891 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:06:06,892 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:06:06,892 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:06:06,892 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:06:06,892 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:06:06,892 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:06:06,908 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-07-17 22:06:06,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-17 22:06:06,913 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:06:06,914 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] [2020-07-17 22:06:06,914 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:06:06,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:06:06,920 INFO L82 PathProgramCache]: Analyzing trace with hash 247190453, now seen corresponding path program 1 times [2020-07-17 22:06:06,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:06:06,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586730280] [2020-07-17 22:06:06,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:06:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:06:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:06:07,142 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 [2020-07-17 22:06:07,143 INFO L280 TraceCheckUtils]: 1: Hoare triple {33#true} assume true; {33#true} is VALID [2020-07-17 22:06:07,144 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {33#true} {33#true} #61#return; {33#true} is VALID [2020-07-17 22:06:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:06:07,183 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 [2020-07-17 22:06:07,184 INFO L280 TraceCheckUtils]: 1: Hoare triple {33#true} assume !true; {34#false} is VALID [2020-07-17 22:06:07,185 INFO L280 TraceCheckUtils]: 2: Hoare triple {34#false} assume !true; {34#false} is VALID [2020-07-17 22:06:07,185 INFO L280 TraceCheckUtils]: 3: Hoare triple {34#false} assume !true; {34#false} is VALID [2020-07-17 22:06:07,186 INFO L280 TraceCheckUtils]: 4: Hoare triple {34#false} #res := ~x; {34#false} is VALID [2020-07-17 22:06:07,186 INFO L280 TraceCheckUtils]: 5: Hoare triple {34#false} assume true; {34#false} is VALID [2020-07-17 22:06:07,187 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {34#false} {33#true} #57#return; {34#false} is VALID [2020-07-17 22:06:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:06:07,201 INFO L280 TraceCheckUtils]: 0: Hoare triple {33#true} ~x := #in~x;#res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {33#true} is VALID [2020-07-17 22:06:07,202 INFO L280 TraceCheckUtils]: 1: Hoare triple {33#true} assume true; {33#true} is VALID [2020-07-17 22:06:07,202 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {33#true} {34#false} #59#return; {34#false} is VALID [2020-07-17 22:06:07,204 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 [2020-07-17 22:06:07,205 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 [2020-07-17 22:06:07,205 INFO L280 TraceCheckUtils]: 2: Hoare triple {33#true} assume true; {33#true} is VALID [2020-07-17 22:06:07,206 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33#true} {33#true} #61#return; {33#true} is VALID [2020-07-17 22:06:07,206 INFO L263 TraceCheckUtils]: 4: Hoare triple {33#true} call #t~ret9 := main(); {33#true} is VALID [2020-07-17 22:06:07,207 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 [2020-07-17 22:06:07,209 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 [2020-07-17 22:06:07,210 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 [2020-07-17 22:06:07,211 INFO L280 TraceCheckUtils]: 8: Hoare triple {33#true} assume !true; {34#false} is VALID [2020-07-17 22:06:07,212 INFO L280 TraceCheckUtils]: 9: Hoare triple {34#false} assume !true; {34#false} is VALID [2020-07-17 22:06:07,212 INFO L280 TraceCheckUtils]: 10: Hoare triple {34#false} assume !true; {34#false} is VALID [2020-07-17 22:06:07,213 INFO L280 TraceCheckUtils]: 11: Hoare triple {34#false} #res := ~x; {34#false} is VALID [2020-07-17 22:06:07,213 INFO L280 TraceCheckUtils]: 12: Hoare triple {34#false} assume true; {34#false} is VALID [2020-07-17 22:06:07,213 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {34#false} {33#true} #57#return; {34#false} is VALID [2020-07-17 22:06:07,214 INFO L280 TraceCheckUtils]: 14: Hoare triple {34#false} ~res~0 := #t~ret7;havoc #t~ret7; {34#false} is VALID [2020-07-17 22:06:07,214 INFO L263 TraceCheckUtils]: 15: Hoare triple {34#false} call #t~ret8 := isnan_float(~res~0); {33#true} is VALID [2020-07-17 22:06:07,215 INFO L280 TraceCheckUtils]: 16: Hoare triple {33#true} ~x := #in~x;#res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {33#true} is VALID [2020-07-17 22:06:07,215 INFO L280 TraceCheckUtils]: 17: Hoare triple {33#true} assume true; {33#true} is VALID [2020-07-17 22:06:07,215 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {33#true} {34#false} #59#return; {34#false} is VALID [2020-07-17 22:06:07,216 INFO L280 TraceCheckUtils]: 19: Hoare triple {34#false} assume -2147483648 <= #t~ret8 && #t~ret8 <= 2147483647; {34#false} is VALID [2020-07-17 22:06:07,216 INFO L280 TraceCheckUtils]: 20: Hoare triple {34#false} assume 0 == #t~ret8;havoc #t~ret8; {34#false} is VALID [2020-07-17 22:06:07,217 INFO L280 TraceCheckUtils]: 21: Hoare triple {34#false} assume !false; {34#false} is VALID [2020-07-17 22:06:07,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:06:07,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586730280] [2020-07-17 22:06:07,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:06:07,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 22:06:07,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144673566] [2020-07-17 22:06:07,231 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-07-17 22:06:07,235 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:06:07,239 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-17 22:06:07,321 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:06:07,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 22:06:07,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:06:07,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 22:06:07,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 22:06:07,336 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 4 states. [2020-07-17 22:06:07,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:06:07,690 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2020-07-17 22:06:07,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 22:06:07,691 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-07-17 22:06:07,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:06:07,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:06:07,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 64 transitions. [2020-07-17 22:06:07,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:06:07,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 64 transitions. [2020-07-17 22:06:07,757 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 64 transitions. [2020-07-17 22:06:07,947 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 64 edges. 64 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:06:07,960 INFO L225 Difference]: With dead ends: 52 [2020-07-17 22:06:07,961 INFO L226 Difference]: Without dead ends: 26 [2020-07-17 22:06:07,965 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 [2020-07-17 22:06:07,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-07-17 22:06:08,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-07-17 22:06:08,029 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:06:08,030 INFO L82 GeneralOperation]: Start isEquivalent. First operand 26 states. Second operand 26 states. [2020-07-17 22:06:08,030 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 26 states. [2020-07-17 22:06:08,031 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 26 states. [2020-07-17 22:06:08,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:06:08,035 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2020-07-17 22:06:08,036 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2020-07-17 22:06:08,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:06:08,036 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:06:08,037 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 26 states. [2020-07-17 22:06:08,037 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 26 states. [2020-07-17 22:06:08,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:06:08,041 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2020-07-17 22:06:08,042 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2020-07-17 22:06:08,042 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:06:08,042 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:06:08,043 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:06:08,043 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:06:08,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-07-17 22:06:08,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2020-07-17 22:06:08,049 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 22 [2020-07-17 22:06:08,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:06:08,049 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2020-07-17 22:06:08,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 22:06:08,050 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2020-07-17 22:06:08,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-17 22:06:08,051 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:06:08,051 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] [2020-07-17 22:06:08,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:06:08,052 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:06:08,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:06:08,053 INFO L82 PathProgramCache]: Analyzing trace with hash 730707327, now seen corresponding path program 1 times [2020-07-17 22:06:08,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:06:08,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858868050] [2020-07-17 22:06:08,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:06:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:06:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:06:08,311 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 22:06:08,311 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 22:06:08,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:06:08,358 WARN L170 areAnnotationChecker]: isnan_floatENTRY has no Hoare annotation [2020-07-17 22:06:08,358 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-17 22:06:08,359 WARN L170 areAnnotationChecker]: copysign_floatENTRY has no Hoare annotation [2020-07-17 22:06:08,359 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:06:08,359 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:06:08,359 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-17 22:06:08,359 WARN L170 areAnnotationChecker]: isnan_floatFINAL has no Hoare annotation [2020-07-17 22:06:08,359 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:06:08,360 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2020-07-17 22:06:08,360 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2020-07-17 22:06:08,361 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:06:08,361 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:06:08,361 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2020-07-17 22:06:08,361 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2020-07-17 22:06:08,361 WARN L170 areAnnotationChecker]: isnan_floatEXIT has no Hoare annotation [2020-07-17 22:06:08,361 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:06:08,361 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-17 22:06:08,362 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-17 22:06:08,362 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-17 22:06:08,362 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-17 22:06:08,362 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:06:08,362 WARN L170 areAnnotationChecker]: L45-1 has no Hoare annotation [2020-07-17 22:06:08,362 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-17 22:06:08,362 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-17 22:06:08,362 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-17 22:06:08,363 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2020-07-17 22:06:08,363 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2020-07-17 22:06:08,363 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-17 22:06:08,363 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-17 22:06:08,363 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-17 22:06:08,363 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-17 22:06:08,363 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-17 22:06:08,364 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-17 22:06:08,364 WARN L170 areAnnotationChecker]: L24-2 has no Hoare annotation [2020-07-17 22:06:08,364 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-17 22:06:08,364 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-17 22:06:08,364 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:06:08,364 WARN L170 areAnnotationChecker]: copysign_floatFINAL has no Hoare annotation [2020-07-17 22:06:08,364 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:06:08,365 WARN L170 areAnnotationChecker]: copysign_floatEXIT has no Hoare annotation [2020-07-17 22:06:08,365 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-17 22:06:08,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:06:08 BoogieIcfgContainer [2020-07-17 22:06:08,370 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:06:08,376 INFO L168 Benchmark]: Toolchain (without parser) took 2554.92 ms. Allocated memory was 143.7 MB in the beginning and 230.2 MB in the end (delta: 86.5 MB). Free memory was 101.4 MB in the beginning and 170.9 MB in the end (delta: -69.5 MB). Peak memory consumption was 17.1 MB. Max. memory is 7.1 GB. [2020-07-17 22:06:08,378 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 143.7 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 22:06:08,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.28 ms. Allocated memory is still 143.7 MB. Free memory was 101.0 MB in the beginning and 90.1 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-07-17 22:06:08,381 INFO L168 Benchmark]: Boogie Preprocessor took 189.37 ms. Allocated memory was 143.7 MB in the beginning and 200.3 MB in the end (delta: 56.6 MB). Free memory was 90.1 MB in the beginning and 177.7 MB in the end (delta: -87.6 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-07-17 22:06:08,382 INFO L168 Benchmark]: RCFGBuilder took 466.32 ms. Allocated memory is still 200.3 MB. Free memory was 177.7 MB in the beginning and 153.2 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-07-17 22:06:08,384 INFO L168 Benchmark]: TraceAbstraction took 1558.31 ms. Allocated memory was 200.3 MB in the beginning and 230.2 MB in the end (delta: 29.9 MB). Free memory was 152.5 MB in the beginning and 170.9 MB in the end (delta: -18.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-07-17 22:06:08,397 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 0.50 ms. Allocated memory is still 143.7 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 334.28 ms. Allocated memory is still 143.7 MB. Free memory was 101.0 MB in the beginning and 90.1 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 189.37 ms. Allocated memory was 143.7 MB in the beginning and 200.3 MB in the end (delta: 56.6 MB). Free memory was 90.1 MB in the beginning and 177.7 MB in the end (delta: -87.6 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 466.32 ms. Allocated memory is still 200.3 MB. Free memory was 177.7 MB in the beginning and 153.2 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1558.31 ms. Allocated memory was 200.3 MB in the beginning and 230.2 MB in the end (delta: 29.9 MB). Free memory was 152.5 MB in the beginning and 170.9 MB in the end (delta: -18.4 MB). Peak memory consumption was 11.5 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: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, 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, 0.1s 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...