/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_1031.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 14:41:41,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 14:41:41,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 14:41:41,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 14:41:41,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 14:41:41,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 14:41:41,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 14:41:41,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 14:41:41,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 14:41:41,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 14:41:41,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 14:41:41,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 14:41:41,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 14:41:41,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 14:41:41,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 14:41:41,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 14:41:41,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 14:41:41,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 14:41:41,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 14:41:41,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 14:41:41,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 14:41:41,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 14:41:41,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 14:41:41,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 14:41:41,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 14:41:41,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 14:41:41,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 14:41:41,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 14:41:41,892 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 14:41:41,907 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 14:41:41,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 14:41:41,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 14:41:41,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 14:41:41,909 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 14:41:41,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 14:41:41,909 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 14:41:41,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 14:41:41,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 14:41:41,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 14:41:41,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 14:41:41,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 14:41:41,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 14:41:41,911 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 14:41:41,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 14:41:41,911 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 14:41:41,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 14:41:41,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 14:41:41,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 14:41:41,912 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 14:41:41,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 14:41:41,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 14:41:41,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 14:41:41,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 14:41:41,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 14:41:41,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 14:41:41,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 14:41:41,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 14:41:41,914 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 14:41:41,914 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 14:41:42,252 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 14:41:42,276 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 14:41:42,280 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 14:41:42,282 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 14:41:42,283 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 14:41:42,284 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1031.c [2020-07-10 14:41:42,348 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a94967772/9f46fc9075264d908a40c390bfccd986/FLAG13733c975 [2020-07-10 14:41:42,810 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 14:41:42,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1031.c [2020-07-10 14:41:42,819 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a94967772/9f46fc9075264d908a40c390bfccd986/FLAG13733c975 [2020-07-10 14:41:43,216 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a94967772/9f46fc9075264d908a40c390bfccd986 [2020-07-10 14:41:43,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 14:41:43,229 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 14:41:43,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 14:41:43,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 14:41:43,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 14:41:43,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 02:41:43" (1/1) ... [2020-07-10 14:41:43,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dca7afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43, skipping insertion in model container [2020-07-10 14:41:43,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 02:41:43" (1/1) ... [2020-07-10 14:41:43,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 14:41:43,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 14:41:43,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 14:41:43,453 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 14:41:43,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 14:41:43,584 INFO L208 MainTranslator]: Completed translation [2020-07-10 14:41:43,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43 WrapperNode [2020-07-10 14:41:43,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 14:41:43,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 14:41:43,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 14:41:43,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 14:41:43,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43" (1/1) ... [2020-07-10 14:41:43,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43" (1/1) ... [2020-07-10 14:41:43,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43" (1/1) ... [2020-07-10 14:41:43,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43" (1/1) ... [2020-07-10 14:41:43,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43" (1/1) ... [2020-07-10 14:41:43,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43" (1/1) ... [2020-07-10 14:41:43,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43" (1/1) ... [2020-07-10 14:41:43,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 14:41:43,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 14:41:43,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 14:41:43,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 14:41:43,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43" (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 14:41:43,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 14:41:43,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 14:41:43,699 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2020-07-10 14:41:43,699 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-07-10 14:41:43,699 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 14:41:43,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 14:41:43,699 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2020-07-10 14:41:43,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 14:41:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-10 14:41:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 14:41:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 14:41:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 14:41:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-10 14:41:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-07-10 14:41:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 14:41:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 14:41:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 14:41:44,057 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 14:41:44,058 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-10 14:41:44,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:41:44 BoogieIcfgContainer [2020-07-10 14:41:44,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 14:41:44,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 14:41:44,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 14:41:44,068 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 14:41:44,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 02:41:43" (1/3) ... [2020-07-10 14:41:44,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc1ee82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:41:44, skipping insertion in model container [2020-07-10 14:41:44,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43" (2/3) ... [2020-07-10 14:41:44,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc1ee82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:41:44, skipping insertion in model container [2020-07-10 14:41:44,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:41:44" (3/3) ... [2020-07-10 14:41:44,073 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1031.c [2020-07-10 14:41:44,086 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 14:41:44,096 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 14:41:44,114 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 14:41:44,141 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 14:41:44,141 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 14:41:44,141 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 14:41:44,141 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 14:41:44,141 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 14:41:44,142 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 14:41:44,142 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 14:41:44,142 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 14:41:44,162 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-07-10 14:41:44,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-10 14:41:44,169 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:41:44,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 14:41:44,171 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:41:44,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:41:44,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1659352855, now seen corresponding path program 1 times [2020-07-10 14:41:44,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:41:44,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153824561] [2020-07-10 14:41:44,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:41:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:41:44,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:41:44,397 INFO L280 TraceCheckUtils]: 0: Hoare triple {52#(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; {37#true} is VALID [2020-07-10 14:41:44,397 INFO L280 TraceCheckUtils]: 1: Hoare triple {37#true} assume true; {37#true} is VALID [2020-07-10 14:41:44,398 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {37#true} {37#true} #72#return; {37#true} is VALID [2020-07-10 14:41:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:41:44,446 INFO L280 TraceCheckUtils]: 0: Hoare triple {53#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~w~0;havoc ~exponent_less_127~0; {37#true} is VALID [2020-07-10 14:41:44,449 INFO L280 TraceCheckUtils]: 1: Hoare triple {37#true} assume !true; {38#false} is VALID [2020-07-10 14:41:44,450 INFO L280 TraceCheckUtils]: 2: Hoare triple {38#false} ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; {38#false} is VALID [2020-07-10 14:41:44,450 INFO L280 TraceCheckUtils]: 3: Hoare triple {38#false} assume !(~exponent_less_127~0 < 23); {38#false} is VALID [2020-07-10 14:41:44,451 INFO L280 TraceCheckUtils]: 4: Hoare triple {38#false} assume 128 == ~exponent_less_127~0;#res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {38#false} is VALID [2020-07-10 14:41:44,451 INFO L280 TraceCheckUtils]: 5: Hoare triple {38#false} assume true; {38#false} is VALID [2020-07-10 14:41:44,452 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {38#false} {37#true} #76#return; {38#false} is VALID [2020-07-10 14:41:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:41:44,468 INFO L280 TraceCheckUtils]: 0: Hoare triple {37#true} ~x := #in~x;#res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {37#true} is VALID [2020-07-10 14:41:44,468 INFO L280 TraceCheckUtils]: 1: Hoare triple {37#true} assume true; {37#true} is VALID [2020-07-10 14:41:44,469 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {37#true} {38#false} #78#return; {38#false} is VALID [2020-07-10 14:41:44,471 INFO L263 TraceCheckUtils]: 0: Hoare triple {37#true} call ULTIMATE.init(); {52#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 14:41:44,471 INFO L280 TraceCheckUtils]: 1: Hoare triple {52#(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; {37#true} is VALID [2020-07-10 14:41:44,472 INFO L280 TraceCheckUtils]: 2: Hoare triple {37#true} assume true; {37#true} is VALID [2020-07-10 14:41:44,472 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {37#true} {37#true} #72#return; {37#true} is VALID [2020-07-10 14:41:44,473 INFO L263 TraceCheckUtils]: 4: Hoare triple {37#true} call #t~ret6 := main(); {37#true} is VALID [2020-07-10 14:41:44,473 INFO L280 TraceCheckUtils]: 5: Hoare triple {37#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); {37#true} is VALID [2020-07-10 14:41:44,476 INFO L263 TraceCheckUtils]: 6: Hoare triple {37#true} call #t~ret4 := round_float(~x~0); {53#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-10 14:41:44,476 INFO L280 TraceCheckUtils]: 7: Hoare triple {53#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~w~0;havoc ~exponent_less_127~0; {37#true} is VALID [2020-07-10 14:41:44,477 INFO L280 TraceCheckUtils]: 8: Hoare triple {37#true} assume !true; {38#false} is VALID [2020-07-10 14:41:44,478 INFO L280 TraceCheckUtils]: 9: Hoare triple {38#false} ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; {38#false} is VALID [2020-07-10 14:41:44,478 INFO L280 TraceCheckUtils]: 10: Hoare triple {38#false} assume !(~exponent_less_127~0 < 23); {38#false} is VALID [2020-07-10 14:41:44,478 INFO L280 TraceCheckUtils]: 11: Hoare triple {38#false} assume 128 == ~exponent_less_127~0;#res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {38#false} is VALID [2020-07-10 14:41:44,479 INFO L280 TraceCheckUtils]: 12: Hoare triple {38#false} assume true; {38#false} is VALID [2020-07-10 14:41:44,479 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {38#false} {37#true} #76#return; {38#false} is VALID [2020-07-10 14:41:44,480 INFO L280 TraceCheckUtils]: 14: Hoare triple {38#false} ~res~0 := #t~ret4;havoc #t~ret4; {38#false} is VALID [2020-07-10 14:41:44,480 INFO L263 TraceCheckUtils]: 15: Hoare triple {38#false} call #t~ret5 := isnan_float(~res~0); {37#true} is VALID [2020-07-10 14:41:44,481 INFO L280 TraceCheckUtils]: 16: Hoare triple {37#true} ~x := #in~x;#res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {37#true} is VALID [2020-07-10 14:41:44,481 INFO L280 TraceCheckUtils]: 17: Hoare triple {37#true} assume true; {37#true} is VALID [2020-07-10 14:41:44,481 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {37#true} {38#false} #78#return; {38#false} is VALID [2020-07-10 14:41:44,482 INFO L280 TraceCheckUtils]: 19: Hoare triple {38#false} assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; {38#false} is VALID [2020-07-10 14:41:44,482 INFO L280 TraceCheckUtils]: 20: Hoare triple {38#false} assume 0 == #t~ret5;havoc #t~ret5; {38#false} is VALID [2020-07-10 14:41:44,483 INFO L280 TraceCheckUtils]: 21: Hoare triple {38#false} assume !false; {38#false} is VALID [2020-07-10 14:41:44,486 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 14:41:44,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153824561] [2020-07-10 14:41:44,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 14:41:44,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-10 14:41:44,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470794355] [2020-07-10 14:41:44,497 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-07-10 14:41:44,500 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 14:41:44,504 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-10 14:41:44,550 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:41:44,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-10 14:41:44,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 14:41:44,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-10 14:41:44,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-10 14:41:44,563 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 4 states. [2020-07-10 14:41:44,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:41:44,921 INFO L93 Difference]: Finished difference Result 60 states and 78 transitions. [2020-07-10 14:41:44,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-10 14:41:44,921 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-07-10 14:41:44,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 14:41:44,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 14:41:44,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2020-07-10 14:41:44,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 14:41:44,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2020-07-10 14:41:44,947 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 78 transitions. [2020-07-10 14:41:45,067 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 78 edges. 78 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:41:45,081 INFO L225 Difference]: With dead ends: 60 [2020-07-10 14:41:45,081 INFO L226 Difference]: Without dead ends: 30 [2020-07-10 14:41:45,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-10 14:41:45,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-10 14:41:45,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-07-10 14:41:45,163 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 14:41:45,164 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand 30 states. [2020-07-10 14:41:45,164 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 30 states. [2020-07-10 14:41:45,165 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 30 states. [2020-07-10 14:41:45,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:41:45,173 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2020-07-10 14:41:45,174 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-07-10 14:41:45,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:41:45,175 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:41:45,175 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 30 states. [2020-07-10 14:41:45,176 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 30 states. [2020-07-10 14:41:45,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:41:45,184 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2020-07-10 14:41:45,184 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-07-10 14:41:45,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:41:45,185 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:41:45,185 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 14:41:45,185 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 14:41:45,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-10 14:41:45,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-07-10 14:41:45,205 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 22 [2020-07-10 14:41:45,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 14:41:45,208 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-07-10 14:41:45,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-10 14:41:45,208 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-07-10 14:41:45,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-10 14:41:45,209 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:41:45,209 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] [2020-07-10 14:41:45,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 14:41:45,210 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:41:45,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:41:45,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1719916348, now seen corresponding path program 1 times [2020-07-10 14:41:45,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:41:45,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23847744] [2020-07-10 14:41:45,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:41:45,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 14:41:45,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 14:41:45,385 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-10 14:41:45,385 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 14:41:45,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 14:41:45,413 WARN L170 areAnnotationChecker]: isnan_floatENTRY has no Hoare annotation [2020-07-10 14:41:45,413 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 14:41:45,413 WARN L170 areAnnotationChecker]: round_floatENTRY has no Hoare annotation [2020-07-10 14:41:45,414 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 14:41:45,414 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 14:41:45,414 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 14:41:45,414 WARN L170 areAnnotationChecker]: isnan_floatFINAL has no Hoare annotation [2020-07-10 14:41:45,414 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 14:41:45,414 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-10 14:41:45,414 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-10 14:41:45,414 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 14:41:45,415 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 14:41:45,415 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-10 14:41:45,415 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-10 14:41:45,415 WARN L170 areAnnotationChecker]: isnan_floatEXIT has no Hoare annotation [2020-07-10 14:41:45,415 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 14:41:45,415 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-10 14:41:45,415 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-10 14:41:45,415 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-10 14:41:45,416 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 14:41:45,416 WARN L170 areAnnotationChecker]: L66-1 has no Hoare annotation [2020-07-10 14:41:45,416 WARN L170 areAnnotationChecker]: L69-1 has no Hoare annotation [2020-07-10 14:41:45,416 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-10 14:41:45,416 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-10 14:41:45,416 WARN L170 areAnnotationChecker]: L69 has no Hoare annotation [2020-07-10 14:41:45,416 WARN L170 areAnnotationChecker]: L69 has no Hoare annotation [2020-07-10 14:41:45,416 WARN L170 areAnnotationChecker]: L69-2 has no Hoare annotation [2020-07-10 14:41:45,417 WARN L170 areAnnotationChecker]: L69-2 has no Hoare annotation [2020-07-10 14:41:45,417 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-10 14:41:45,417 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-10 14:41:45,417 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-10 14:41:45,417 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-10 14:41:45,417 WARN L170 areAnnotationChecker]: L70 has no Hoare annotation [2020-07-10 14:41:45,417 WARN L170 areAnnotationChecker]: L70 has no Hoare annotation [2020-07-10 14:41:45,418 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 14:41:45,418 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-10 14:41:45,418 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-10 14:41:45,418 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-10 14:41:45,418 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-10 14:41:45,418 WARN L170 areAnnotationChecker]: round_floatFINAL has no Hoare annotation [2020-07-10 14:41:45,418 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 14:41:45,418 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-10 14:41:45,419 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-10 14:41:45,419 WARN L170 areAnnotationChecker]: round_floatEXIT has no Hoare annotation [2020-07-10 14:41:45,419 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-10 14:41:45,419 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-10 14:41:45,419 WARN L170 areAnnotationChecker]: L46-2 has no Hoare annotation [2020-07-10 14:41:45,419 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 14:41:45,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 02:41:45 BoogieIcfgContainer [2020-07-10 14:41:45,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 14:41:45,426 INFO L168 Benchmark]: Toolchain (without parser) took 2195.56 ms. Allocated memory was 138.4 MB in the beginning and 234.9 MB in the end (delta: 96.5 MB). Free memory was 102.4 MB in the beginning and 163.5 MB in the end (delta: -61.1 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. [2020-07-10 14:41:45,426 INFO L168 Benchmark]: CDTParser took 1.37 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-10 14:41:45,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.47 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 102.1 MB in the beginning and 180.9 MB in the end (delta: -78.7 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-07-10 14:41:45,428 INFO L168 Benchmark]: Boogie Preprocessor took 49.61 ms. Allocated memory is still 201.9 MB. Free memory was 180.9 MB in the beginning and 178.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-10 14:41:45,429 INFO L168 Benchmark]: RCFGBuilder took 428.33 ms. Allocated memory is still 201.9 MB. Free memory was 178.5 MB in the beginning and 153.8 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-07-10 14:41:45,430 INFO L168 Benchmark]: TraceAbstraction took 1357.09 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 153.1 MB in the beginning and 163.5 MB in the end (delta: -10.4 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-07-10 14:41:45,434 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.37 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 354.47 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 102.1 MB in the beginning and 180.9 MB in the end (delta: -78.7 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.61 ms. Allocated memory is still 201.9 MB. Free memory was 180.9 MB in the beginning and 178.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 428.33 ms. Allocated memory is still 201.9 MB. Free memory was 178.5 MB in the beginning and 153.8 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1357.09 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 153.1 MB in the beginning and 163.5 MB in the end (delta: -10.4 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 70]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 55, overapproximation of someBinaryArithmeticFLOAToperation at line 42, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L65] float x = 0.0f / 0.0f; [L66] CALL, EXPR round_float(x) VAL [\old(x)=2139095046] [L12] __uint32_t w; [L14] int exponent_less_127; VAL [\old(x)=2139095046, x=2139095046] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L22] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=2139095046, exponent_less_127=128, w=2139095042, x=2139095046] [L24] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=2139095046, exponent_less_127=128, w=2139095042, x=2139095046] [L40] COND TRUE exponent_less_127 == 128 [L42] return x + x; VAL [\old(x)=2139095046, exponent_less_127=128, w=2139095042, x=2139095046] [L66] RET, EXPR round_float(x) VAL [round_float(x)=2139095045, x=2139095046] [L66] float res = round_float(x); [L69] CALL, EXPR isnan_float(res) VAL [\old(x)=2139095045] [L55] return x != x; VAL [\old(x)=2139095045, \result=0, x=2139095045] [L69] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=2139095045, x=2139095046] [L69] COND TRUE !isnan_float(res) [L70] __VERIFIER_error() VAL [res=2139095045, x=2139095046] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 29 SDslu, 5 SDs, 0 SdLazy, 35 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=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...