/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_1072d.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 14:42:06,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 14:42:06,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 14:42:06,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 14:42:06,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 14:42:06,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 14:42:06,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 14:42:06,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 14:42:06,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 14:42:06,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 14:42:06,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 14:42:06,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 14:42:06,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 14:42:06,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 14:42:06,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 14:42:06,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 14:42:06,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 14:42:06,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 14:42:06,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 14:42:06,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 14:42:06,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 14:42:06,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 14:42:06,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 14:42:06,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 14:42:06,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-10 14:42:06,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-10 14:42:06,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-10 14:42:06,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-10 14:42:06,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-10 14:42:06,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-10 14:42:06,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-10 14:42:06,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-10 14:42:06,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-10 14:42:06,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-10 14:42:06,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-10 14:42:06,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-10 14:42:06,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-10 14:42:06,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-10 14:42:06,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 14:42:06,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 14:42:06,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 14:42:06,696 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-10 14:42:06,721 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 14:42:06,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 14:42:06,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 14:42:06,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 14:42:06,726 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 14:42:06,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 14:42:06,727 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 14:42:06,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 14:42:06,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 14:42:06,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 14:42:06,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 14:42:06,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 14:42:06,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 14:42:06,731 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 14:42:06,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 14:42:06,732 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 14:42:06,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 14:42:06,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 14:42:06,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 14:42:06,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 14:42:06,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 14:42:06,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 14:42:06,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 14:42:06,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 14:42:06,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 14:42:06,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 14:42:06,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 14:42:06,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 14:42:06,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 14:42:06,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 14:42:07,071 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 14:42:07,084 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 14:42:07,088 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 14:42:07,089 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 14:42:07,089 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 14:42:07,090 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1072d.c [2020-07-10 14:42:07,161 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b43bdb1d7/1fde6c1604db4c1da56bd78136c6c8ea/FLAG4b97d977a [2020-07-10 14:42:07,628 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 14:42:07,629 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1072d.c [2020-07-10 14:42:07,637 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b43bdb1d7/1fde6c1604db4c1da56bd78136c6c8ea/FLAG4b97d977a [2020-07-10 14:42:07,961 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b43bdb1d7/1fde6c1604db4c1da56bd78136c6c8ea [2020-07-10 14:42:07,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 14:42:07,975 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 14:42:07,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 14:42:07,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 14:42:07,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 14:42:07,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 02:42:07" (1/1) ... [2020-07-10 14:42:07,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62af41c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:07, skipping insertion in model container [2020-07-10 14:42:07,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 02:42:07" (1/1) ... [2020-07-10 14:42:07,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 14:42:08,015 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 14:42:08,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 14:42:08,213 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 14:42:08,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 14:42:08,271 INFO L208 MainTranslator]: Completed translation [2020-07-10 14:42:08,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:08 WrapperNode [2020-07-10 14:42:08,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 14:42:08,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 14:42:08,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 14:42:08,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 14:42:08,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:08" (1/1) ... [2020-07-10 14:42:08,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:08" (1/1) ... [2020-07-10 14:42:08,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:08" (1/1) ... [2020-07-10 14:42:08,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:08" (1/1) ... [2020-07-10 14:42:08,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:08" (1/1) ... [2020-07-10 14:42:08,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:08" (1/1) ... [2020-07-10 14:42:08,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:08" (1/1) ... [2020-07-10 14:42:08,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 14:42:08,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 14:42:08,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 14:42:08,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 14:42:08,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 14:42:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 14:42:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 14:42:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2020-07-10 14:42:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-07-10 14:42:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 14:42:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 14:42:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2020-07-10 14:42:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 14:42:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-10 14:42:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 14:42:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 14:42:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 14:42:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-10 14:42:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-07-10 14:42:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 14:42:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 14:42:08,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 14:42:08,960 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 14:42:08,961 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-10 14:42:08,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:42:08 BoogieIcfgContainer [2020-07-10 14:42:08,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 14:42:08,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 14:42:08,966 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 14:42:08,970 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 14:42:08,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 02:42:07" (1/3) ... [2020-07-10 14:42:08,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a1af9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:42:08, skipping insertion in model container [2020-07-10 14:42:08,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:08" (2/3) ... [2020-07-10 14:42:08,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a1af9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:42:08, skipping insertion in model container [2020-07-10 14:42:08,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:42:08" (3/3) ... [2020-07-10 14:42:08,978 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072d.c [2020-07-10 14:42:08,990 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 14:42:08,998 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 14:42:09,012 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 14:42:09,034 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 14:42:09,034 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 14:42:09,034 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 14:42:09,034 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 14:42:09,034 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 14:42:09,035 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 14:42:09,035 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 14:42:09,035 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 14:42:09,051 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-07-10 14:42:09,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-10 14:42:09,057 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:42:09,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 14:42:09,058 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:42:09,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:42:09,065 INFO L82 PathProgramCache]: Analyzing trace with hash 753691903, now seen corresponding path program 1 times [2020-07-10 14:42:09,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:42:09,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024069120] [2020-07-10 14:42:09,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:42:09,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:42:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:42:09,267 INFO L280 TraceCheckUtils]: 0: Hoare triple {53#(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; {41#true} is VALID [2020-07-10 14:42:09,268 INFO L280 TraceCheckUtils]: 1: Hoare triple {41#true} assume true; {41#true} is VALID [2020-07-10 14:42:09,269 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {41#true} {41#true} #94#return; {41#true} is VALID [2020-07-10 14:42:09,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:42:09,307 INFO L280 TraceCheckUtils]: 0: Hoare triple {54#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~signbit~0;havoc ~w~0;havoc ~exponent_less_127~0; {41#true} is VALID [2020-07-10 14:42:09,308 INFO L280 TraceCheckUtils]: 1: Hoare triple {41#true} assume !true; {42#false} is VALID [2020-07-10 14:42:09,309 INFO L280 TraceCheckUtils]: 2: Hoare triple {42#false} ~signbit~0 := (if ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 - 4294967296);~exponent_less_127~0 := ~bitwiseAnd(~w~0, 2139095040) / 8388608 - 127; {42#false} is VALID [2020-07-10 14:42:09,310 INFO L280 TraceCheckUtils]: 3: Hoare triple {42#false} assume !(~exponent_less_127~0 < 23); {42#false} is VALID [2020-07-10 14:42:09,310 INFO L280 TraceCheckUtils]: 4: Hoare triple {42#false} assume 255 == ~exponent_less_127~0;#res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {42#false} is VALID [2020-07-10 14:42:09,310 INFO L280 TraceCheckUtils]: 5: Hoare triple {42#false} assume true; {42#false} is VALID [2020-07-10 14:42:09,311 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {42#false} {41#true} #98#return; {42#false} is VALID [2020-07-10 14:42:09,313 INFO L263 TraceCheckUtils]: 0: Hoare triple {41#true} call ULTIMATE.init(); {53#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 14:42:09,314 INFO L280 TraceCheckUtils]: 1: Hoare triple {53#(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; {41#true} is VALID [2020-07-10 14:42:09,314 INFO L280 TraceCheckUtils]: 2: Hoare triple {41#true} assume true; {41#true} is VALID [2020-07-10 14:42:09,315 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {41#true} {41#true} #94#return; {41#true} is VALID [2020-07-10 14:42:09,315 INFO L263 TraceCheckUtils]: 4: Hoare triple {41#true} call #t~ret11 := main(); {41#true} is VALID [2020-07-10 14:42:09,316 INFO L280 TraceCheckUtils]: 5: Hoare triple {41#true} ~x~0 := ~someUnaryFLOAToperation(0.0); {41#true} is VALID [2020-07-10 14:42:09,318 INFO L263 TraceCheckUtils]: 6: Hoare triple {41#true} call #t~ret8 := trunc_float(~x~0); {54#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-10 14:42:09,318 INFO L280 TraceCheckUtils]: 7: Hoare triple {54#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~signbit~0;havoc ~w~0;havoc ~exponent_less_127~0; {41#true} is VALID [2020-07-10 14:42:09,319 INFO L280 TraceCheckUtils]: 8: Hoare triple {41#true} assume !true; {42#false} is VALID [2020-07-10 14:42:09,320 INFO L280 TraceCheckUtils]: 9: Hoare triple {42#false} ~signbit~0 := (if ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 - 4294967296);~exponent_less_127~0 := ~bitwiseAnd(~w~0, 2139095040) / 8388608 - 127; {42#false} is VALID [2020-07-10 14:42:09,320 INFO L280 TraceCheckUtils]: 10: Hoare triple {42#false} assume !(~exponent_less_127~0 < 23); {42#false} is VALID [2020-07-10 14:42:09,321 INFO L280 TraceCheckUtils]: 11: Hoare triple {42#false} assume 255 == ~exponent_less_127~0;#res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {42#false} is VALID [2020-07-10 14:42:09,321 INFO L280 TraceCheckUtils]: 12: Hoare triple {42#false} assume true; {42#false} is VALID [2020-07-10 14:42:09,321 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {42#false} {41#true} #98#return; {42#false} is VALID [2020-07-10 14:42:09,322 INFO L280 TraceCheckUtils]: 14: Hoare triple {42#false} ~res~0 := #t~ret8;havoc #t~ret8;#t~short10 := ~someBinaryFLOATComparisonOperation(~res~0, ~someUnaryFLOAToperation(0.0)); {42#false} is VALID [2020-07-10 14:42:09,322 INFO L280 TraceCheckUtils]: 15: Hoare triple {42#false} assume !#t~short10; {42#false} is VALID [2020-07-10 14:42:09,323 INFO L280 TraceCheckUtils]: 16: Hoare triple {42#false} assume !#t~short10;havoc #t~short10;havoc #t~ret9; {42#false} is VALID [2020-07-10 14:42:09,323 INFO L280 TraceCheckUtils]: 17: Hoare triple {42#false} assume !false; {42#false} is VALID [2020-07-10 14:42:09,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 14:42:09,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024069120] [2020-07-10 14:42:09,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 14:42:09,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-10 14:42:09,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257866590] [2020-07-10 14:42:09,335 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-10 14:42:09,338 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 14:42:09,343 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-10 14:42:09,383 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:42:09,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-10 14:42:09,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 14:42:09,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-10 14:42:09,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-10 14:42:09,398 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 4 states. [2020-07-10 14:42:09,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:42:09,820 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2020-07-10 14:42:09,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-10 14:42:09,820 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-10 14:42:09,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 14:42:09,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 14:42:09,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2020-07-10 14:42:09,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 14:42:09,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2020-07-10 14:42:09,839 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 93 transitions. [2020-07-10 14:42:09,990 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 93 edges. 93 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:42:10,006 INFO L225 Difference]: With dead ends: 68 [2020-07-10 14:42:10,006 INFO L226 Difference]: Without dead ends: 34 [2020-07-10 14:42:10,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-10 14:42:10,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-07-10 14:42:10,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-07-10 14:42:10,084 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 14:42:10,084 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand 34 states. [2020-07-10 14:42:10,085 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 34 states. [2020-07-10 14:42:10,085 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 34 states. [2020-07-10 14:42:10,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:42:10,090 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2020-07-10 14:42:10,090 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2020-07-10 14:42:10,091 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:42:10,091 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:42:10,091 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 34 states. [2020-07-10 14:42:10,092 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 34 states. [2020-07-10 14:42:10,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:42:10,096 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2020-07-10 14:42:10,096 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2020-07-10 14:42:10,097 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:42:10,097 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:42:10,097 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 14:42:10,097 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 14:42:10,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-07-10 14:42:10,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2020-07-10 14:42:10,102 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 18 [2020-07-10 14:42:10,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 14:42:10,102 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2020-07-10 14:42:10,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-10 14:42:10,103 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2020-07-10 14:42:10,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-10 14:42:10,104 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:42:10,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 14:42:10,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 14:42:10,105 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:42:10,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:42:10,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1111015325, now seen corresponding path program 1 times [2020-07-10 14:42:10,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:42:10,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854501542] [2020-07-10 14:42:10,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:42:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 14:42:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 14:42:10,247 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-10 14:42:10,248 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 14:42:10,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 14:42:10,276 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 14:42:10,277 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 14:42:10,277 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 14:42:10,277 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 14:42:10,277 WARN L170 areAnnotationChecker]: trunc_floatENTRY has no Hoare annotation [2020-07-10 14:42:10,277 WARN L170 areAnnotationChecker]: __signbit_floatENTRY has no Hoare annotation [2020-07-10 14:42:10,277 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 14:42:10,277 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 14:42:10,278 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 14:42:10,278 WARN L170 areAnnotationChecker]: L63 has no Hoare annotation [2020-07-10 14:42:10,278 WARN L170 areAnnotationChecker]: L63 has no Hoare annotation [2020-07-10 14:42:10,278 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2020-07-10 14:42:10,278 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2020-07-10 14:42:10,278 WARN L170 areAnnotationChecker]: L46-2 has no Hoare annotation [2020-07-10 14:42:10,278 WARN L170 areAnnotationChecker]: L46-2 has no Hoare annotation [2020-07-10 14:42:10,279 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 14:42:10,279 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 14:42:10,279 WARN L170 areAnnotationChecker]: L63-1 has no Hoare annotation [2020-07-10 14:42:10,279 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-10 14:42:10,279 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-10 14:42:10,279 WARN L170 areAnnotationChecker]: L14-3 has no Hoare annotation [2020-07-10 14:42:10,279 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-10 14:42:10,280 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-10 14:42:10,280 WARN L170 areAnnotationChecker]: L46-3 has no Hoare annotation [2020-07-10 14:42:10,280 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-10 14:42:10,280 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-10 14:42:10,280 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-10 14:42:10,280 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-10 14:42:10,280 WARN L170 areAnnotationChecker]: __signbit_floatFINAL has no Hoare annotation [2020-07-10 14:42:10,281 WARN L170 areAnnotationChecker]: L66-1 has no Hoare annotation [2020-07-10 14:42:10,281 WARN L170 areAnnotationChecker]: L66-1 has no Hoare annotation [2020-07-10 14:42:10,281 WARN L170 areAnnotationChecker]: L66-4 has no Hoare annotation [2020-07-10 14:42:10,281 WARN L170 areAnnotationChecker]: L66-4 has no Hoare annotation [2020-07-10 14:42:10,281 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-10 14:42:10,281 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-10 14:42:10,281 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-10 14:42:10,281 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-10 14:42:10,282 WARN L170 areAnnotationChecker]: __signbit_floatEXIT has no Hoare annotation [2020-07-10 14:42:10,282 WARN L170 areAnnotationChecker]: L66-2 has no Hoare annotation [2020-07-10 14:42:10,282 WARN L170 areAnnotationChecker]: L67 has no Hoare annotation [2020-07-10 14:42:10,282 WARN L170 areAnnotationChecker]: L67 has no Hoare annotation [2020-07-10 14:42:10,282 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 14:42:10,282 WARN L170 areAnnotationChecker]: L24-2 has no Hoare annotation [2020-07-10 14:42:10,283 WARN L170 areAnnotationChecker]: L24-2 has no Hoare annotation [2020-07-10 14:42:10,283 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-10 14:42:10,283 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-10 14:42:10,283 WARN L170 areAnnotationChecker]: trunc_floatFINAL has no Hoare annotation [2020-07-10 14:42:10,283 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2020-07-10 14:42:10,283 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 14:42:10,283 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2020-07-10 14:42:10,284 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2020-07-10 14:42:10,284 WARN L170 areAnnotationChecker]: L30-1 has no Hoare annotation [2020-07-10 14:42:10,284 WARN L170 areAnnotationChecker]: L30-1 has no Hoare annotation [2020-07-10 14:42:10,284 WARN L170 areAnnotationChecker]: trunc_floatEXIT has no Hoare annotation [2020-07-10 14:42:10,284 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-10 14:42:10,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 02:42:10 BoogieIcfgContainer [2020-07-10 14:42:10,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 14:42:10,291 INFO L168 Benchmark]: Toolchain (without parser) took 2315.72 ms. Allocated memory was 136.8 MB in the beginning and 231.2 MB in the end (delta: 94.4 MB). Free memory was 102.2 MB in the beginning and 149.5 MB in the end (delta: -47.4 MB). Peak memory consumption was 47.0 MB. Max. memory is 7.1 GB. [2020-07-10 14:42:10,292 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-10 14:42:10,293 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.78 ms. Allocated memory is still 136.8 MB. Free memory was 101.7 MB in the beginning and 90.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-07-10 14:42:10,294 INFO L168 Benchmark]: Boogie Preprocessor took 146.77 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 90.0 MB in the beginning and 177.4 MB in the end (delta: -87.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2020-07-10 14:42:10,294 INFO L168 Benchmark]: RCFGBuilder took 545.89 ms. Allocated memory is still 200.8 MB. Free memory was 177.4 MB in the beginning and 148.1 MB in the end (delta: 29.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. [2020-07-10 14:42:10,296 INFO L168 Benchmark]: TraceAbstraction took 1321.13 ms. Allocated memory was 200.8 MB in the beginning and 231.2 MB in the end (delta: 30.4 MB). Free memory was 148.1 MB in the beginning and 149.5 MB in the end (delta: -1.4 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. [2020-07-10 14:42:10,299 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 0.25 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 295.78 ms. Allocated memory is still 136.8 MB. Free memory was 101.7 MB in the beginning and 90.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 146.77 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 90.0 MB in the beginning and 177.4 MB in the end (delta: -87.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 545.89 ms. Allocated memory is still 200.8 MB. Free memory was 177.4 MB in the beginning and 148.1 MB in the end (delta: 29.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1321.13 ms. Allocated memory was 200.8 MB in the beginning and 231.2 MB in the end (delta: 30.4 MB). Free memory was 148.1 MB in the beginning and 149.5 MB in the end (delta: -1.4 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 67]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 66, overapproximation of bitwiseAnd at line 19, overapproximation of someUnaryFLOAToperation at line 62, overapproximation of someBinaryArithmeticFLOAToperation at line 38. Possible FailurePath: [L62] float x = -0.0f; [L63] CALL, EXPR trunc_float(x) VAL [\old(x)=8589934595] [L13] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=8589934595, x=8589934595] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (w) = gf_u.word [L19] signbit = w & 0x80000000 [L20] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=8589934595, exponent_less_127=255, signbit=-2, w=-1, x=8589934595] [L21] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=8589934595, exponent_less_127=255, signbit=-2, w=-1, x=8589934595] [L37] COND TRUE exponent_less_127 == 255 [L38] return x + x; VAL [\old(x)=8589934595, exponent_less_127=255, signbit=-2, w=-1, x=8589934595] [L63] RET, EXPR trunc_float(x) VAL [trunc_float(x)=8589934592, x=8589934595] [L63] float res = trunc_float(x); [L66] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=8589934592, res == -0.0f && __signbit_float(res) == 1=0, x=8589934595] [L66] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L67] __VERIFIER_error() VAL [res=8589934592, x=8589934595] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 29 SDslu, 5 SDs, 0 SdLazy, 41 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 646 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...