/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_1051.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:05:29,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:05:29,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:05:29,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:05:29,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:05:29,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:05:29,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:05:29,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:05:29,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:05:29,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:05:29,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:05:29,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:05:29,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:05:29,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:05:29,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:05:29,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:05:29,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:05:29,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:05:29,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:05:29,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:05:29,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:05:29,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:05:29,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:05:29,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:05:29,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:05:29,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:05:29,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:05:29,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:05:29,393 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 22:05:29,429 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:05:29,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:05:29,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:05:29,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:05:29,432 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:05:29,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:05:29,432 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:05:29,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:05:29,432 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:05:29,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:05:29,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:05:29,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:05:29,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:05:29,435 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:05:29,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:05:29,435 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:05:29,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:05:29,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:05:29,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:05:29,436 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:05:29,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:05:29,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:05:29,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:05:29,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:05:29,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:05:29,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:05:29,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:05:29,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:05:29,438 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:05:29,438 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:05:29,728 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:05:29,741 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:05:29,744 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:05:29,746 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:05:29,746 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:05:29,747 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1051.c [2020-07-17 22:05:29,822 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a62d2209/a8d6ac6b50cc46808869c901152ba529/FLAG7eaa8b5be [2020-07-17 22:05:30,287 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:05:30,288 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1051.c [2020-07-17 22:05:30,295 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a62d2209/a8d6ac6b50cc46808869c901152ba529/FLAG7eaa8b5be [2020-07-17 22:05:30,641 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a62d2209/a8d6ac6b50cc46808869c901152ba529 [2020-07-17 22:05:30,651 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:05:30,654 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:05:30,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:05:30,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:05:30,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:05:30,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:05:30" (1/1) ... [2020-07-17 22:05:30,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@612941dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:30, skipping insertion in model container [2020-07-17 22:05:30,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:05:30" (1/1) ... [2020-07-17 22:05:30,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:05:30,693 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:05:30,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:05:30,919 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:05:30,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:05:31,059 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:05:31,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31 WrapperNode [2020-07-17 22:05:31,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:05:31,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:05:31,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:05:31,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:05:31,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31" (1/1) ... [2020-07-17 22:05:31,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31" (1/1) ... [2020-07-17 22:05:31,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31" (1/1) ... [2020-07-17 22:05:31,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31" (1/1) ... [2020-07-17 22:05:31,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31" (1/1) ... [2020-07-17 22:05:31,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31" (1/1) ... [2020-07-17 22:05:31,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31" (1/1) ... [2020-07-17 22:05:31,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:05:31,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:05:31,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:05:31,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:05:31,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:05:31,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:05:31,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:05:31,166 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2020-07-17 22:05:31,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-07-17 22:05:31,166 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:05:31,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:05:31,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-17 22:05:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2020-07-17 22:05:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 22:05:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 22:05:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:05:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:05:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:05:31,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 22:05:31,168 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-07-17 22:05:31,168 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:05:31,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:05:31,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:05:31,612 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:05:31,612 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-17 22:05:31,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:05:31 BoogieIcfgContainer [2020-07-17 22:05:31,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:05:31,618 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:05:31,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:05:31,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:05:31,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:05:30" (1/3) ... [2020-07-17 22:05:31,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b64641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:05:31, skipping insertion in model container [2020-07-17 22:05:31,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31" (2/3) ... [2020-07-17 22:05:31,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b64641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:05:31, skipping insertion in model container [2020-07-17 22:05:31,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:05:31" (3/3) ... [2020-07-17 22:05:31,624 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051.c [2020-07-17 22:05:31,635 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:05:31,642 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:05:31,656 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:05:31,679 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:05:31,679 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:05:31,679 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:05:31,679 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:05:31,679 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:05:31,680 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:05:31,680 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:05:31,680 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:05:31,698 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-07-17 22:05:31,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-17 22:05:31,705 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:05:31,706 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 22:05:31,707 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:05:31,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:05:31,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1361541252, now seen corresponding path program 1 times [2020-07-17 22:05:31,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:05:31,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702492659] [2020-07-17 22:05:31,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:05:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:31,926 INFO L280 TraceCheckUtils]: 0: Hoare triple {57#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~huge_floor~0 |old(~huge_floor~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~huge_floor~0 := 1.0E30; {42#true} is VALID [2020-07-17 22:05:31,927 INFO L280 TraceCheckUtils]: 1: Hoare triple {42#true} assume true; {42#true} is VALID [2020-07-17 22:05:31,928 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {42#true} {42#true} #99#return; {42#true} is VALID [2020-07-17 22:05:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:31,986 INFO L280 TraceCheckUtils]: 0: Hoare triple {58#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~i0~0;havoc ~j0~0;havoc ~i~0;havoc ~ix~0; {42#true} is VALID [2020-07-17 22:05:31,988 INFO L280 TraceCheckUtils]: 1: Hoare triple {42#true} assume !true; {43#false} is VALID [2020-07-17 22:05:31,988 INFO L280 TraceCheckUtils]: 2: Hoare triple {43#false} ~ix~0 := ~bitwiseAnd(~i0~0, 2147483647);~j0~0 := (if (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 <= 2147483647 then (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 else (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 - 4294967296); {43#false} is VALID [2020-07-17 22:05:31,989 INFO L280 TraceCheckUtils]: 3: Hoare triple {43#false} assume !(~j0~0 < 23); {43#false} is VALID [2020-07-17 22:05:31,989 INFO L280 TraceCheckUtils]: 4: Hoare triple {43#false} assume !(~ix~0 % 4294967296 < 2139095040);#res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {43#false} is VALID [2020-07-17 22:05:31,989 INFO L280 TraceCheckUtils]: 5: Hoare triple {43#false} assume true; {43#false} is VALID [2020-07-17 22:05:31,990 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {43#false} {42#true} #95#return; {43#false} is VALID [2020-07-17 22:05:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:32,038 INFO L280 TraceCheckUtils]: 0: Hoare triple {42#true} ~x := #in~x;#res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {42#true} is VALID [2020-07-17 22:05:32,039 INFO L280 TraceCheckUtils]: 1: Hoare triple {42#true} assume true; {42#true} is VALID [2020-07-17 22:05:32,039 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {42#true} {43#false} #97#return; {43#false} is VALID [2020-07-17 22:05:32,043 INFO L263 TraceCheckUtils]: 0: Hoare triple {42#true} call ULTIMATE.init(); {57#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~huge_floor~0 |old(~huge_floor~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:05:32,043 INFO L280 TraceCheckUtils]: 1: Hoare triple {57#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~huge_floor~0 |old(~huge_floor~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~huge_floor~0 := 1.0E30; {42#true} is VALID [2020-07-17 22:05:32,043 INFO L280 TraceCheckUtils]: 2: Hoare triple {42#true} assume true; {42#true} is VALID [2020-07-17 22:05:32,047 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {42#true} {42#true} #99#return; {42#true} is VALID [2020-07-17 22:05:32,047 INFO L263 TraceCheckUtils]: 4: Hoare triple {42#true} call #t~ret6 := main(); {42#true} is VALID [2020-07-17 22:05:32,048 INFO L280 TraceCheckUtils]: 5: Hoare triple {42#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); {42#true} is VALID [2020-07-17 22:05:32,052 INFO L263 TraceCheckUtils]: 6: Hoare triple {42#true} call #t~ret4 := floor_float(~x~0); {58#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-17 22:05:32,053 INFO L280 TraceCheckUtils]: 7: Hoare triple {58#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~i0~0;havoc ~j0~0;havoc ~i~0;havoc ~ix~0; {42#true} is VALID [2020-07-17 22:05:32,055 INFO L280 TraceCheckUtils]: 8: Hoare triple {42#true} assume !true; {43#false} is VALID [2020-07-17 22:05:32,055 INFO L280 TraceCheckUtils]: 9: Hoare triple {43#false} ~ix~0 := ~bitwiseAnd(~i0~0, 2147483647);~j0~0 := (if (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 <= 2147483647 then (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 else (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 - 4294967296); {43#false} is VALID [2020-07-17 22:05:32,056 INFO L280 TraceCheckUtils]: 10: Hoare triple {43#false} assume !(~j0~0 < 23); {43#false} is VALID [2020-07-17 22:05:32,056 INFO L280 TraceCheckUtils]: 11: Hoare triple {43#false} assume !(~ix~0 % 4294967296 < 2139095040);#res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {43#false} is VALID [2020-07-17 22:05:32,057 INFO L280 TraceCheckUtils]: 12: Hoare triple {43#false} assume true; {43#false} is VALID [2020-07-17 22:05:32,057 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {43#false} {42#true} #95#return; {43#false} is VALID [2020-07-17 22:05:32,058 INFO L280 TraceCheckUtils]: 14: Hoare triple {43#false} ~res~0 := #t~ret4;havoc #t~ret4; {43#false} is VALID [2020-07-17 22:05:32,058 INFO L263 TraceCheckUtils]: 15: Hoare triple {43#false} call #t~ret5 := isnan_float(~res~0); {42#true} is VALID [2020-07-17 22:05:32,059 INFO L280 TraceCheckUtils]: 16: Hoare triple {42#true} ~x := #in~x;#res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {42#true} is VALID [2020-07-17 22:05:32,059 INFO L280 TraceCheckUtils]: 17: Hoare triple {42#true} assume true; {42#true} is VALID [2020-07-17 22:05:32,060 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {42#true} {43#false} #97#return; {43#false} is VALID [2020-07-17 22:05:32,060 INFO L280 TraceCheckUtils]: 19: Hoare triple {43#false} assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; {43#false} is VALID [2020-07-17 22:05:32,061 INFO L280 TraceCheckUtils]: 20: Hoare triple {43#false} assume 0 == #t~ret5;havoc #t~ret5; {43#false} is VALID [2020-07-17 22:05:32,061 INFO L280 TraceCheckUtils]: 21: Hoare triple {43#false} assume !false; {43#false} is VALID [2020-07-17 22:05:32,068 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 22:05:32,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702492659] [2020-07-17 22:05:32,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:05:32,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 22:05:32,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721154651] [2020-07-17 22:05:32,082 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-07-17 22:05:32,086 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:05:32,089 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-17 22:05:32,138 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 22:05:32,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 22:05:32,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:05:32,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 22:05:32,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 22:05:32,149 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 4 states. [2020-07-17 22:05:32,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:32,542 INFO L93 Difference]: Finished difference Result 70 states and 96 transitions. [2020-07-17 22:05:32,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 22:05:32,543 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-07-17 22:05:32,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:05:32,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:05:32,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 96 transitions. [2020-07-17 22:05:32,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:05:32,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 96 transitions. [2020-07-17 22:05:32,565 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 96 transitions. [2020-07-17 22:05:32,700 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 96 edges. 96 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:05:32,711 INFO L225 Difference]: With dead ends: 70 [2020-07-17 22:05:32,712 INFO L226 Difference]: Without dead ends: 35 [2020-07-17 22:05:32,715 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 22:05:32,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-07-17 22:05:32,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-07-17 22:05:32,778 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:05:32,779 INFO L82 GeneralOperation]: Start isEquivalent. First operand 35 states. Second operand 35 states. [2020-07-17 22:05:32,779 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 35 states. [2020-07-17 22:05:32,779 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 35 states. [2020-07-17 22:05:32,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:32,785 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2020-07-17 22:05:32,785 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2020-07-17 22:05:32,786 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:05:32,786 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:05:32,786 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 35 states. [2020-07-17 22:05:32,786 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 35 states. [2020-07-17 22:05:32,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:32,791 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2020-07-17 22:05:32,792 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2020-07-17 22:05:32,792 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:05:32,792 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:05:32,793 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:05:32,793 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:05:32,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-17 22:05:32,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2020-07-17 22:05:32,798 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 22 [2020-07-17 22:05:32,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:05:32,798 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2020-07-17 22:05:32,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 22:05:32,799 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2020-07-17 22:05:32,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-17 22:05:32,800 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:05:32,800 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] [2020-07-17 22:05:32,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:05:32,801 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:05:32,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:05:32,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1541897397, now seen corresponding path program 1 times [2020-07-17 22:05:32,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:05:32,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100597902] [2020-07-17 22:05:32,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:05:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:05:32,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:05:33,034 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 22:05:33,035 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 22:05:33,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:05:33,075 WARN L170 areAnnotationChecker]: isnan_floatENTRY has no Hoare annotation [2020-07-17 22:05:33,075 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-17 22:05:33,075 WARN L170 areAnnotationChecker]: floor_floatENTRY has no Hoare annotation [2020-07-17 22:05:33,076 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:05:33,076 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:05:33,076 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-17 22:05:33,076 WARN L170 areAnnotationChecker]: isnan_floatFINAL has no Hoare annotation [2020-07-17 22:05:33,076 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:05:33,076 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-17 22:05:33,077 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-17 22:05:33,077 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:05:33,077 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:05:33,077 WARN L170 areAnnotationChecker]: L67 has no Hoare annotation [2020-07-17 22:05:33,077 WARN L170 areAnnotationChecker]: L67 has no Hoare annotation [2020-07-17 22:05:33,077 WARN L170 areAnnotationChecker]: isnan_floatEXIT has no Hoare annotation [2020-07-17 22:05:33,078 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:05:33,078 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2020-07-17 22:05:33,078 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2020-07-17 22:05:33,078 WARN L170 areAnnotationChecker]: L17-3 has no Hoare annotation [2020-07-17 22:05:33,078 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:05:33,078 WARN L170 areAnnotationChecker]: L67-1 has no Hoare annotation [2020-07-17 22:05:33,078 WARN L170 areAnnotationChecker]: L70-1 has no Hoare annotation [2020-07-17 22:05:33,078 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-17 22:05:33,079 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-17 22:05:33,079 WARN L170 areAnnotationChecker]: L70 has no Hoare annotation [2020-07-17 22:05:33,079 WARN L170 areAnnotationChecker]: L70 has no Hoare annotation [2020-07-17 22:05:33,079 WARN L170 areAnnotationChecker]: L70-2 has no Hoare annotation [2020-07-17 22:05:33,079 WARN L170 areAnnotationChecker]: L70-2 has no Hoare annotation [2020-07-17 22:05:33,079 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-17 22:05:33,079 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-17 22:05:33,080 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-17 22:05:33,080 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-17 22:05:33,080 WARN L170 areAnnotationChecker]: L71 has no Hoare annotation [2020-07-17 22:05:33,080 WARN L170 areAnnotationChecker]: L71 has no Hoare annotation [2020-07-17 22:05:33,080 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:05:33,080 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-17 22:05:33,081 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-17 22:05:33,081 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-17 22:05:33,081 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-17 22:05:33,081 WARN L170 areAnnotationChecker]: floor_floatFINAL has no Hoare annotation [2020-07-17 22:05:33,081 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:05:33,081 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-17 22:05:33,081 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-17 22:05:33,082 WARN L170 areAnnotationChecker]: L49-1 has no Hoare annotation [2020-07-17 22:05:33,082 WARN L170 areAnnotationChecker]: L49-1 has no Hoare annotation [2020-07-17 22:05:33,082 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-17 22:05:33,083 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-17 22:05:33,083 WARN L170 areAnnotationChecker]: floor_floatEXIT has no Hoare annotation [2020-07-17 22:05:33,083 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-17 22:05:33,084 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-17 22:05:33,084 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-17 22:05:33,085 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-17 22:05:33,085 WARN L170 areAnnotationChecker]: L49-2 has no Hoare annotation [2020-07-17 22:05:33,085 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-17 22:05:33,085 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-17 22:05:33,085 WARN L170 areAnnotationChecker]: L38-2 has no Hoare annotation [2020-07-17 22:05:33,085 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 22:05:33,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:05:33 BoogieIcfgContainer [2020-07-17 22:05:33,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:05:33,098 INFO L168 Benchmark]: Toolchain (without parser) took 2443.00 ms. Allocated memory was 145.8 MB in the beginning and 236.5 MB in the end (delta: 90.7 MB). Free memory was 102.0 MB in the beginning and 141.4 MB in the end (delta: -39.4 MB). Peak memory consumption was 51.3 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:33,100 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.8 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 22:05:33,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 405.12 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 101.6 MB in the beginning and 181.5 MB in the end (delta: -79.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:33,102 INFO L168 Benchmark]: Boogie Preprocessor took 42.08 ms. Allocated memory is still 202.9 MB. Free memory was 181.5 MB in the beginning and 179.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:33,103 INFO L168 Benchmark]: RCFGBuilder took 513.71 ms. Allocated memory is still 202.9 MB. Free memory was 179.1 MB in the beginning and 150.9 MB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:33,105 INFO L168 Benchmark]: TraceAbstraction took 1475.66 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 150.3 MB in the beginning and 141.4 MB in the end (delta: 8.9 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:33,119 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 0.23 ms. Allocated memory is still 145.8 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 405.12 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 101.6 MB in the beginning and 181.5 MB in the end (delta: -79.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.08 ms. Allocated memory is still 202.9 MB. Free memory was 181.5 MB in the beginning and 179.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 513.71 ms. Allocated memory is still 202.9 MB. Free memory was 179.1 MB in the beginning and 150.9 MB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1475.66 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 150.3 MB in the beginning and 141.4 MB in the end (delta: 8.9 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 71]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someBinaryArithmeticFLOAToperation at line 45, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; VAL [\old(huge_floor)=1000000000000000000000000000004, huge_floor=1000000000000000000000000000000] [L66] float x = 0.0f / 0.0f; VAL [huge_floor=1000000000000000000000000000000] [L67] CALL, EXPR floor_float(x) VAL [\old(x)=1000000000000000000000000000007, huge_floor=1000000000000000000000000000000] [L15] __int32_t i0, j0; [L16] __uint32_t i, ix; VAL [\old(x)=1000000000000000000000000000007, huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000007] [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (i0) = gf_u.word [L22] ix = (i0 & 0x7fffffff) [L23] j0 = (ix >> 23) - 0x7f VAL [\old(x)=1000000000000000000000000000007, huge_floor=1000000000000000000000000000000, i=18014396353609728, i0=-1, j0=2147483264, x=1000000000000000000000000000007] [L24] COND FALSE !(j0 < 23) VAL [\old(x)=1000000000000000000000000000007, huge_floor=1000000000000000000000000000000, i=18014396353609728, i0=-1, j0=2147483264, x=1000000000000000000000000000007] [L44] COND TRUE !((ix) < 0x7f800000L) [L45] return x + x; VAL [\old(x)=1000000000000000000000000000007, huge_floor=1000000000000000000000000000000, i=18014396353609728, i0=-1, j0=2147483264, x=1000000000000000000000000000007] [L67] RET, EXPR floor_float(x) VAL [floor_float(x)=1000000000000000000000000000005, huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000007] [L67] float res = floor_float(x); [L70] CALL, EXPR isnan_float(res) VAL [\old(x)=1000000000000000000000000000005, huge_floor=1000000000000000000000000000000] [L58] return x != x; VAL [\old(x)=1000000000000000000000000000005, \result=0, huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000005] [L70] RET, EXPR isnan_float(res) VAL [huge_floor=1000000000000000000000000000000, isnan_float(res)=0, res=1000000000000000000000000000005, x=1000000000000000000000000000007] [L70] COND TRUE !isnan_float(res) [L71] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000, res=1000000000000000000000000000005, x=1000000000000000000000000000007] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 38 SDslu, 5 SDs, 0 SdLazy, 44 SolverSat, 9 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 0.2s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 945 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...