/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_1071.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:05:36,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:05:36,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:05:36,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:05:36,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:05:36,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:05:36,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:05:36,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:05:36,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:05:36,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:05:36,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:05:36,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:05:36,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:05:36,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:05:36,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:05:36,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:05:36,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:05:36,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:05:36,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:05:36,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:05:36,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:05:36,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:05:36,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:05:36,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:05:36,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:05:36,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:05:36,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:05:36,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:05:36,774 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 22:05:36,789 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:05:36,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:05:36,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:05:36,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:05:36,791 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:05:36,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:05:36,792 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:05:36,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:05:36,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:05:36,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:05:36,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:05:36,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:05:36,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:05:36,793 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:05:36,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:05:36,793 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:05:36,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:05:36,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:05:36,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:05:36,794 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:05:36,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:05:36,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:05:36,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:05:36,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:05:36,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:05:36,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:05:36,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:05:36,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:05:36,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:05:36,796 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:05:37,088 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:05:37,100 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:05:37,104 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:05:37,105 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:05:37,105 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:05:37,106 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1071.c [2020-07-17 22:05:37,193 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e963574f2/1616b07f1f42451dbfbc52a86df2f189/FLAGebcbb0010 [2020-07-17 22:05:37,665 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:05:37,665 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1071.c [2020-07-17 22:05:37,674 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e963574f2/1616b07f1f42451dbfbc52a86df2f189/FLAGebcbb0010 [2020-07-17 22:05:38,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e963574f2/1616b07f1f42451dbfbc52a86df2f189 [2020-07-17 22:05:38,034 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:05:38,037 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:05:38,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:05:38,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:05:38,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:05:38,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:05:38" (1/1) ... [2020-07-17 22:05:38,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42359016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:38, skipping insertion in model container [2020-07-17 22:05:38,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:05:38" (1/1) ... [2020-07-17 22:05:38,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:05:38,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:05:38,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:05:38,266 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:05:38,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:05:38,321 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:05:38,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:38 WrapperNode [2020-07-17 22:05:38,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:05:38,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:05:38,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:05:38,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:05:38,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:38" (1/1) ... [2020-07-17 22:05:38,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:38" (1/1) ... [2020-07-17 22:05:38,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:38" (1/1) ... [2020-07-17 22:05:38,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:38" (1/1) ... [2020-07-17 22:05:38,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:38" (1/1) ... [2020-07-17 22:05:38,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:38" (1/1) ... [2020-07-17 22:05:38,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:38" (1/1) ... [2020-07-17 22:05:38,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:05:38,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:05:38,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:05:38,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:05:38,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:38" (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 22:05:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:05:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:05:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2020-07-17 22:05:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-07-17 22:05:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:05:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:05:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2020-07-17 22:05:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 22:05:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 22:05:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:05:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:05:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:05:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 22:05:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-07-17 22:05:38,537 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:05:38,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:05:38,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:05:38,995 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:05:38,995 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-17 22:05:39,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:05:38 BoogieIcfgContainer [2020-07-17 22:05:39,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:05:39,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:05:39,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:05:39,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:05:39,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:05:38" (1/3) ... [2020-07-17 22:05:39,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23143186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:05:39, skipping insertion in model container [2020-07-17 22:05:39,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:38" (2/3) ... [2020-07-17 22:05:39,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23143186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:05:39, skipping insertion in model container [2020-07-17 22:05:39,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:05:38" (3/3) ... [2020-07-17 22:05:39,010 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1071.c [2020-07-17 22:05:39,021 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:05:39,029 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:05:39,044 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:05:39,068 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:05:39,068 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:05:39,068 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:05:39,068 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:05:39,069 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:05:39,069 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:05:39,069 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:05:39,069 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:05:39,087 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-07-17 22:05:39,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-17 22:05:39,093 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:05:39,094 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 22:05:39,094 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:05:39,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:05:39,100 INFO L82 PathProgramCache]: Analyzing trace with hash 846806543, now seen corresponding path program 1 times [2020-07-17 22:05:39,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:05:39,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688849596] [2020-07-17 22:05:39,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:05:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:39,341 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 [2020-07-17 22:05:39,341 INFO L280 TraceCheckUtils]: 1: Hoare triple {37#true} assume true; {37#true} is VALID [2020-07-17 22:05:39,342 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {37#true} {37#true} #75#return; {37#true} is VALID [2020-07-17 22:05:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:39,378 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 ~signbit~0;havoc ~w~0;havoc ~exponent_less_127~0; {37#true} is VALID [2020-07-17 22:05:39,379 INFO L280 TraceCheckUtils]: 1: Hoare triple {37#true} assume !true; {38#false} is VALID [2020-07-17 22:05:39,380 INFO L280 TraceCheckUtils]: 2: Hoare triple {38#false} ~signbit~0 := (if ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 - 4294967296);~exponent_less_127~0 := ~bitwiseAnd(~w~0, 2139095040) / 8388608 - 127; {38#false} is VALID [2020-07-17 22:05:39,380 INFO L280 TraceCheckUtils]: 3: Hoare triple {38#false} assume !(~exponent_less_127~0 < 23); {38#false} is VALID [2020-07-17 22:05:39,381 INFO L280 TraceCheckUtils]: 4: Hoare triple {38#false} assume 255 == ~exponent_less_127~0;#res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {38#false} is VALID [2020-07-17 22:05:39,381 INFO L280 TraceCheckUtils]: 5: Hoare triple {38#false} assume true; {38#false} is VALID [2020-07-17 22:05:39,382 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {38#false} {37#true} #79#return; {38#false} is VALID [2020-07-17 22:05:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:39,396 INFO L280 TraceCheckUtils]: 0: Hoare triple {37#true} ~x := #in~x;#res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {37#true} is VALID [2020-07-17 22:05:39,397 INFO L280 TraceCheckUtils]: 1: Hoare triple {37#true} assume true; {37#true} is VALID [2020-07-17 22:05:39,397 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {37#true} {38#false} #81#return; {38#false} is VALID [2020-07-17 22:05:39,399 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 [2020-07-17 22:05:39,400 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 [2020-07-17 22:05:39,400 INFO L280 TraceCheckUtils]: 2: Hoare triple {37#true} assume true; {37#true} is VALID [2020-07-17 22:05:39,401 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {37#true} {37#true} #75#return; {37#true} is VALID [2020-07-17 22:05:39,401 INFO L263 TraceCheckUtils]: 4: Hoare triple {37#true} call #t~ret8 := main(); {37#true} is VALID [2020-07-17 22:05:39,402 INFO L280 TraceCheckUtils]: 5: Hoare triple {37#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); {37#true} is VALID [2020-07-17 22:05:39,404 INFO L263 TraceCheckUtils]: 6: Hoare triple {37#true} call #t~ret6 := trunc_float(~x~0); {53#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-17 22:05:39,404 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 ~signbit~0;havoc ~w~0;havoc ~exponent_less_127~0; {37#true} is VALID [2020-07-17 22:05:39,405 INFO L280 TraceCheckUtils]: 8: Hoare triple {37#true} assume !true; {38#false} is VALID [2020-07-17 22:05:39,406 INFO L280 TraceCheckUtils]: 9: Hoare triple {38#false} ~signbit~0 := (if ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 - 4294967296);~exponent_less_127~0 := ~bitwiseAnd(~w~0, 2139095040) / 8388608 - 127; {38#false} is VALID [2020-07-17 22:05:39,406 INFO L280 TraceCheckUtils]: 10: Hoare triple {38#false} assume !(~exponent_less_127~0 < 23); {38#false} is VALID [2020-07-17 22:05:39,406 INFO L280 TraceCheckUtils]: 11: Hoare triple {38#false} assume 255 == ~exponent_less_127~0;#res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {38#false} is VALID [2020-07-17 22:05:39,407 INFO L280 TraceCheckUtils]: 12: Hoare triple {38#false} assume true; {38#false} is VALID [2020-07-17 22:05:39,407 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {38#false} {37#true} #79#return; {38#false} is VALID [2020-07-17 22:05:39,408 INFO L280 TraceCheckUtils]: 14: Hoare triple {38#false} ~res~0 := #t~ret6;havoc #t~ret6; {38#false} is VALID [2020-07-17 22:05:39,408 INFO L263 TraceCheckUtils]: 15: Hoare triple {38#false} call #t~ret7 := isnan_float(~res~0); {37#true} is VALID [2020-07-17 22:05:39,408 INFO L280 TraceCheckUtils]: 16: Hoare triple {37#true} ~x := #in~x;#res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {37#true} is VALID [2020-07-17 22:05:39,409 INFO L280 TraceCheckUtils]: 17: Hoare triple {37#true} assume true; {37#true} is VALID [2020-07-17 22:05:39,409 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {37#true} {38#false} #81#return; {38#false} is VALID [2020-07-17 22:05:39,410 INFO L280 TraceCheckUtils]: 19: Hoare triple {38#false} assume -2147483648 <= #t~ret7 && #t~ret7 <= 2147483647; {38#false} is VALID [2020-07-17 22:05:39,410 INFO L280 TraceCheckUtils]: 20: Hoare triple {38#false} assume 0 == #t~ret7;havoc #t~ret7; {38#false} is VALID [2020-07-17 22:05:39,410 INFO L280 TraceCheckUtils]: 21: Hoare triple {38#false} assume !false; {38#false} is VALID [2020-07-17 22:05:39,414 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 22:05:39,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688849596] [2020-07-17 22:05:39,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:05:39,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 22:05:39,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546413284] [2020-07-17 22:05:39,424 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-07-17 22:05:39,427 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:05:39,430 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-17 22:05:39,488 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 22:05:39,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 22:05:39,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:05:39,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 22:05:39,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 22:05:39,502 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 4 states. [2020-07-17 22:05:39,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:39,923 INFO L93 Difference]: Finished difference Result 60 states and 78 transitions. [2020-07-17 22:05:39,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 22:05:39,924 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-07-17 22:05:39,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:05:39,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:05:39,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2020-07-17 22:05:39,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:05:39,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2020-07-17 22:05:39,948 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 78 transitions. [2020-07-17 22:05:40,085 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 78 edges. 78 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:05:40,099 INFO L225 Difference]: With dead ends: 60 [2020-07-17 22:05:40,099 INFO L226 Difference]: Without dead ends: 30 [2020-07-17 22:05:40,102 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 22:05:40,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-17 22:05:40,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-07-17 22:05:40,163 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:05:40,163 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand 30 states. [2020-07-17 22:05:40,164 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 30 states. [2020-07-17 22:05:40,164 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 30 states. [2020-07-17 22:05:40,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:40,168 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2020-07-17 22:05:40,169 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-07-17 22:05:40,169 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:05:40,170 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:05:40,170 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 30 states. [2020-07-17 22:05:40,170 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 30 states. [2020-07-17 22:05:40,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:40,174 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2020-07-17 22:05:40,175 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-07-17 22:05:40,175 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:05:40,175 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:05:40,176 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:05:40,176 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:05:40,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-17 22:05:40,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2020-07-17 22:05:40,181 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 22 [2020-07-17 22:05:40,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:05:40,181 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2020-07-17 22:05:40,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 22:05:40,182 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-07-17 22:05:40,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-17 22:05:40,183 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:05:40,183 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 22:05:40,183 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:05:40,183 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:05:40,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:05:40,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1446285465, now seen corresponding path program 1 times [2020-07-17 22:05:40,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:05:40,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133660847] [2020-07-17 22:05:40,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:05:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:05:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:05:40,461 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 22:05:40,461 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 22:05:40,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:05:40,508 WARN L170 areAnnotationChecker]: isnan_floatENTRY has no Hoare annotation [2020-07-17 22:05:40,509 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-17 22:05:40,509 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:05:40,509 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:05:40,509 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-17 22:05:40,509 WARN L170 areAnnotationChecker]: trunc_floatENTRY has no Hoare annotation [2020-07-17 22:05:40,509 WARN L170 areAnnotationChecker]: isnan_floatFINAL has no Hoare annotation [2020-07-17 22:05:40,509 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:05:40,510 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:05:40,510 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:05:40,510 WARN L170 areAnnotationChecker]: L53 has no Hoare annotation [2020-07-17 22:05:40,510 WARN L170 areAnnotationChecker]: L53 has no Hoare annotation [2020-07-17 22:05:40,510 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2020-07-17 22:05:40,510 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2020-07-17 22:05:40,510 WARN L170 areAnnotationChecker]: isnan_floatEXIT has no Hoare annotation [2020-07-17 22:05:40,511 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:05:40,511 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:05:40,511 WARN L170 areAnnotationChecker]: L53-1 has no Hoare annotation [2020-07-17 22:05:40,511 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-17 22:05:40,511 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-17 22:05:40,511 WARN L170 areAnnotationChecker]: L14-3 has no Hoare annotation [2020-07-17 22:05:40,511 WARN L170 areAnnotationChecker]: L56-1 has no Hoare annotation [2020-07-17 22:05:40,512 WARN L170 areAnnotationChecker]: L56 has no Hoare annotation [2020-07-17 22:05:40,512 WARN L170 areAnnotationChecker]: L56 has no Hoare annotation [2020-07-17 22:05:40,512 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-17 22:05:40,512 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-17 22:05:40,512 WARN L170 areAnnotationChecker]: L56-2 has no Hoare annotation [2020-07-17 22:05:40,512 WARN L170 areAnnotationChecker]: L56-2 has no Hoare annotation [2020-07-17 22:05:40,512 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-17 22:05:40,513 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-17 22:05:40,513 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-17 22:05:40,513 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-17 22:05:40,513 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2020-07-17 22:05:40,514 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2020-07-17 22:05:40,514 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:05:40,514 WARN L170 areAnnotationChecker]: L24-2 has no Hoare annotation [2020-07-17 22:05:40,514 WARN L170 areAnnotationChecker]: L24-2 has no Hoare annotation [2020-07-17 22:05:40,514 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-17 22:05:40,514 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-17 22:05:40,514 WARN L170 areAnnotationChecker]: trunc_floatFINAL has no Hoare annotation [2020-07-17 22:05:40,515 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2020-07-17 22:05:40,515 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:05:40,515 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2020-07-17 22:05:40,515 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2020-07-17 22:05:40,515 WARN L170 areAnnotationChecker]: L30-1 has no Hoare annotation [2020-07-17 22:05:40,515 WARN L170 areAnnotationChecker]: L30-1 has no Hoare annotation [2020-07-17 22:05:40,515 WARN L170 areAnnotationChecker]: trunc_floatEXIT has no Hoare annotation [2020-07-17 22:05:40,516 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 22:05:40,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:05:40 BoogieIcfgContainer [2020-07-17 22:05:40,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:05:40,529 INFO L168 Benchmark]: Toolchain (without parser) took 2491.61 ms. Allocated memory was 146.3 MB in the beginning and 235.9 MB in the end (delta: 89.7 MB). Free memory was 104.2 MB in the beginning and 159.9 MB in the end (delta: -55.7 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:40,531 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 22:05:40,532 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.39 ms. Allocated memory is still 146.3 MB. Free memory was 103.8 MB in the beginning and 92.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:40,534 INFO L168 Benchmark]: Boogie Preprocessor took 153.40 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 92.2 MB in the beginning and 180.8 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:40,534 INFO L168 Benchmark]: RCFGBuilder took 524.02 ms. Allocated memory is still 203.4 MB. Free memory was 180.8 MB in the beginning and 154.8 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:40,536 INFO L168 Benchmark]: TraceAbstraction took 1523.11 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 154.2 MB in the beginning and 159.9 MB in the end (delta: -5.7 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:40,553 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 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 283.39 ms. Allocated memory is still 146.3 MB. Free memory was 103.8 MB in the beginning and 92.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 153.40 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 92.2 MB in the beginning and 180.8 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 524.02 ms. Allocated memory is still 203.4 MB. Free memory was 180.8 MB in the beginning and 154.8 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1523.11 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 154.2 MB in the beginning and 159.9 MB in the end (delta: -5.7 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 57]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 38, overapproximation of bitwiseAnd at line 19. Possible FailurePath: [L52] float x = 0.0f / 0.0f; [L53] CALL, EXPR trunc_float(x) VAL [\old(x)=8589934596] [L13] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=8589934596, x=8589934596] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (w) = gf_u.word [L19] signbit = w & 0x80000000 [L20] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=8589934596, exponent_less_127=255, signbit=-2, w=-1, x=8589934596] [L21] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=8589934596, exponent_less_127=255, signbit=-2, w=-1, x=8589934596] [L37] COND TRUE exponent_less_127 == 255 [L38] return x + x; VAL [\old(x)=8589934596, exponent_less_127=255, signbit=-2, w=-1, x=8589934596] [L53] RET, EXPR trunc_float(x) VAL [trunc_float(x)=8589934593, x=8589934596] [L53] float res = trunc_float(x); [L56] CALL, EXPR isnan_float(res) VAL [\old(x)=8589934593] [L44] return x != x; VAL [\old(x)=8589934593, \result=0, x=8589934593] [L56] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=8589934593, x=8589934596] [L56] COND TRUE !isnan_float(res) [L57] __VERIFIER_error() VAL [res=8589934593, x=8589934596] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 26 SDslu, 5 SDs, 0 SdLazy, 34 SolverSat, 10 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, 0.1s 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...