/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_0730c.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:05:06,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:05:06,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:05:06,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:05:06,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:05:06,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:05:06,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:05:06,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:05:06,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:05:06,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:05:06,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:05:06,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:05:06,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:05:06,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:05:06,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:05:06,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:05:06,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:05:06,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:05:06,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:05:06,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:05:06,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:05:06,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:05:06,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:05:06,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:05:06,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:05:06,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:05:06,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:05:06,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:05:06,219 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 22:05:06,260 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:05:06,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:05:06,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:05:06,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:05:06,262 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:05:06,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:05:06,263 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:05:06,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:05:06,265 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:05:06,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:05:06,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:05:06,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:05:06,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:05:06,266 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:05:06,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:05:06,267 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:05:06,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:05:06,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:05:06,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:05:06,271 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:05:06,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:05:06,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:05:06,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:05:06,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:05:06,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:05:06,272 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:05:06,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:05:06,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:05:06,273 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:05:06,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:05:06,566 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:05:06,579 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:05:06,583 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:05:06,585 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:05:06,585 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:05:06,586 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730c.c [2020-07-17 22:05:06,649 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e044454c8/5359024f6775460f87924f83bd3519fc/FLAG71040b3d8 [2020-07-17 22:05:07,088 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:05:07,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0730c.c [2020-07-17 22:05:07,099 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e044454c8/5359024f6775460f87924f83bd3519fc/FLAG71040b3d8 [2020-07-17 22:05:07,490 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e044454c8/5359024f6775460f87924f83bd3519fc [2020-07-17 22:05:07,502 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:05:07,505 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:05:07,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:05:07,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:05:07,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:05:07,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:05:07" (1/1) ... [2020-07-17 22:05:07,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cbfc568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:07, skipping insertion in model container [2020-07-17 22:05:07,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:05:07" (1/1) ... [2020-07-17 22:05:07,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:05:07,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:05:07,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:05:07,771 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:05:07,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:05:07,933 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:05:07,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:07 WrapperNode [2020-07-17 22:05:07,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:05:07,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:05:07,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:05:07,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:05:07,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:07" (1/1) ... [2020-07-17 22:05:07,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:07" (1/1) ... [2020-07-17 22:05:07,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:07" (1/1) ... [2020-07-17 22:05:07,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:07" (1/1) ... [2020-07-17 22:05:07,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:07" (1/1) ... [2020-07-17 22:05:07,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:07" (1/1) ... [2020-07-17 22:05:07,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:07" (1/1) ... [2020-07-17 22:05:07,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:05:07,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:05:07,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:05:07,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:05:07,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:07" (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 22:05:08,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:05:08,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:05:08,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2020-07-17 22:05:08,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-07-17 22:05:08,054 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:05:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:05:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-17 22:05:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2020-07-17 22:05:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 22:05:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 22:05:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:05:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:05:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:05:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 22:05:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-07-17 22:05:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:05:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:05:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:05:08,679 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:05:08,679 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-17 22:05:08,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:05:08 BoogieIcfgContainer [2020-07-17 22:05:08,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:05:08,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:05:08,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:05:08,689 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:05:08,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:05:07" (1/3) ... [2020-07-17 22:05:08,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f7a18c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:05:08, skipping insertion in model container [2020-07-17 22:05:08,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:07" (2/3) ... [2020-07-17 22:05:08,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f7a18c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:05:08, skipping insertion in model container [2020-07-17 22:05:08,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:05:08" (3/3) ... [2020-07-17 22:05:08,693 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c.c [2020-07-17 22:05:08,705 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:05:08,712 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:05:08,724 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:05:08,748 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:05:08,748 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:05:08,748 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:05:08,749 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:05:08,749 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:05:08,749 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:05:08,749 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:05:08,749 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:05:08,768 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-07-17 22:05:08,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-17 22:05:08,775 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:05:08,776 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:05:08,776 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:05:08,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:05:08,782 INFO L82 PathProgramCache]: Analyzing trace with hash 380065484, now seen corresponding path program 1 times [2020-07-17 22:05:08,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:05:08,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456307510] [2020-07-17 22:05:08,791 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:05:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:09,010 INFO L280 TraceCheckUtils]: 0: Hoare triple {64#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~tiny_sqrt~0 |old(~tiny_sqrt~0)|) (= ~one_sqrt~0 |old(~one_sqrt~0)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~one_sqrt~0 := 1.0;~tiny_sqrt~0 := 1.0E-30; {53#true} is VALID [2020-07-17 22:05:09,011 INFO L280 TraceCheckUtils]: 1: Hoare triple {53#true} assume true; {53#true} is VALID [2020-07-17 22:05:09,011 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {53#true} {53#true} #149#return; {53#true} is VALID [2020-07-17 22:05:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:09,073 INFO L280 TraceCheckUtils]: 0: Hoare triple {65#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~z~0;havoc ~r~0;havoc ~hx~0;havoc ~ix~0;havoc ~s~0;havoc ~q~0;havoc ~m~0;havoc ~t~0;havoc ~i~0; {53#true} is VALID [2020-07-17 22:05:09,075 INFO L280 TraceCheckUtils]: 1: Hoare triple {53#true} assume !true; {54#false} is VALID [2020-07-17 22:05:09,075 INFO L280 TraceCheckUtils]: 2: Hoare triple {54#false} ~hx~0 := ~bitwiseAnd(~ix~0, 2147483647); {54#false} is VALID [2020-07-17 22:05:09,076 INFO L280 TraceCheckUtils]: 3: Hoare triple {54#false} assume !(~hx~0 % 4294967296 < 2139095040);#res := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~x, ~x), ~x); {54#false} is VALID [2020-07-17 22:05:09,076 INFO L280 TraceCheckUtils]: 4: Hoare triple {54#false} assume true; {54#false} is VALID [2020-07-17 22:05:09,077 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {54#false} {53#true} #145#return; {54#false} is VALID [2020-07-17 22:05:09,081 INFO L263 TraceCheckUtils]: 0: Hoare triple {53#true} call ULTIMATE.init(); {64#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~tiny_sqrt~0 |old(~tiny_sqrt~0)|) (= ~one_sqrt~0 |old(~one_sqrt~0)|))} is VALID [2020-07-17 22:05:09,081 INFO L280 TraceCheckUtils]: 1: Hoare triple {64#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~tiny_sqrt~0 |old(~tiny_sqrt~0)|) (= ~one_sqrt~0 |old(~one_sqrt~0)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~one_sqrt~0 := 1.0;~tiny_sqrt~0 := 1.0E-30; {53#true} is VALID [2020-07-17 22:05:09,081 INFO L280 TraceCheckUtils]: 2: Hoare triple {53#true} assume true; {53#true} is VALID [2020-07-17 22:05:09,082 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {53#true} {53#true} #149#return; {53#true} is VALID [2020-07-17 22:05:09,082 INFO L263 TraceCheckUtils]: 4: Hoare triple {53#true} call #t~ret10 := main(); {53#true} is VALID [2020-07-17 22:05:09,083 INFO L280 TraceCheckUtils]: 5: Hoare triple {53#true} ~x~0 := ~someUnaryFLOAToperation(0.0); {53#true} is VALID [2020-07-17 22:05:09,086 INFO L263 TraceCheckUtils]: 6: Hoare triple {53#true} call #t~ret7 := __ieee754_sqrtf(~x~0); {65#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-17 22:05:09,087 INFO L280 TraceCheckUtils]: 7: Hoare triple {65#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~z~0;havoc ~r~0;havoc ~hx~0;havoc ~ix~0;havoc ~s~0;havoc ~q~0;havoc ~m~0;havoc ~t~0;havoc ~i~0; {53#true} is VALID [2020-07-17 22:05:09,088 INFO L280 TraceCheckUtils]: 8: Hoare triple {53#true} assume !true; {54#false} is VALID [2020-07-17 22:05:09,089 INFO L280 TraceCheckUtils]: 9: Hoare triple {54#false} ~hx~0 := ~bitwiseAnd(~ix~0, 2147483647); {54#false} is VALID [2020-07-17 22:05:09,089 INFO L280 TraceCheckUtils]: 10: Hoare triple {54#false} assume !(~hx~0 % 4294967296 < 2139095040);#res := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~x, ~x), ~x); {54#false} is VALID [2020-07-17 22:05:09,089 INFO L280 TraceCheckUtils]: 11: Hoare triple {54#false} assume true; {54#false} is VALID [2020-07-17 22:05:09,090 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {54#false} {53#true} #145#return; {54#false} is VALID [2020-07-17 22:05:09,090 INFO L280 TraceCheckUtils]: 13: Hoare triple {54#false} ~res~0 := #t~ret7;havoc #t~ret7;#t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, ~someUnaryFLOAToperation(0.0)); {54#false} is VALID [2020-07-17 22:05:09,091 INFO L280 TraceCheckUtils]: 14: Hoare triple {54#false} assume !#t~short9; {54#false} is VALID [2020-07-17 22:05:09,092 INFO L280 TraceCheckUtils]: 15: Hoare triple {54#false} assume !#t~short9;havoc #t~ret8;havoc #t~short9; {54#false} is VALID [2020-07-17 22:05:09,092 INFO L280 TraceCheckUtils]: 16: Hoare triple {54#false} assume !false; {54#false} is VALID [2020-07-17 22:05:09,095 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 22:05:09,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456307510] [2020-07-17 22:05:09,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:05:09,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 22:05:09,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131416684] [2020-07-17 22:05:09,104 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-17 22:05:09,107 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:05:09,111 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-17 22:05:09,142 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:05:09,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 22:05:09,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:05:09,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 22:05:09,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 22:05:09,153 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 4 states. [2020-07-17 22:05:09,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:09,682 INFO L93 Difference]: Finished difference Result 92 states and 133 transitions. [2020-07-17 22:05:09,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 22:05:09,683 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-17 22:05:09,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:05:09,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:05:09,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 133 transitions. [2020-07-17 22:05:09,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:05:09,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 133 transitions. [2020-07-17 22:05:09,707 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 133 transitions. [2020-07-17 22:05:09,905 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 133 edges. 133 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:05:09,921 INFO L225 Difference]: With dead ends: 92 [2020-07-17 22:05:09,921 INFO L226 Difference]: Without dead ends: 46 [2020-07-17 22:05:09,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 22:05:09,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-07-17 22:05:10,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-07-17 22:05:10,012 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:05:10,012 INFO L82 GeneralOperation]: Start isEquivalent. First operand 46 states. Second operand 46 states. [2020-07-17 22:05:10,013 INFO L74 IsIncluded]: Start isIncluded. First operand 46 states. Second operand 46 states. [2020-07-17 22:05:10,013 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 46 states. [2020-07-17 22:05:10,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:10,020 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2020-07-17 22:05:10,020 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2020-07-17 22:05:10,021 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:05:10,021 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:05:10,021 INFO L74 IsIncluded]: Start isIncluded. First operand 46 states. Second operand 46 states. [2020-07-17 22:05:10,021 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 46 states. [2020-07-17 22:05:10,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:10,027 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2020-07-17 22:05:10,027 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2020-07-17 22:05:10,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:05:10,028 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:05:10,029 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:05:10,029 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:05:10,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-07-17 22:05:10,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2020-07-17 22:05:10,037 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 57 transitions. Word has length 17 [2020-07-17 22:05:10,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:05:10,038 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 57 transitions. [2020-07-17 22:05:10,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 22:05:10,038 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2020-07-17 22:05:10,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-17 22:05:10,042 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:05:10,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:05:10,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:05:10,043 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:05:10,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:05:10,046 INFO L82 PathProgramCache]: Analyzing trace with hash 2048303218, now seen corresponding path program 1 times [2020-07-17 22:05:10,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:05:10,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275860584] [2020-07-17 22:05:10,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:05:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:05:10,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:05:10,195 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 22:05:10,195 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 22:05:10,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:05:10,225 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-17 22:05:10,226 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:05:10,226 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:05:10,226 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-17 22:05:10,226 WARN L170 areAnnotationChecker]: __ieee754_sqrtfENTRY has no Hoare annotation [2020-07-17 22:05:10,226 WARN L170 areAnnotationChecker]: __signbit_floatENTRY has no Hoare annotation [2020-07-17 22:05:10,226 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:05:10,227 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:05:10,227 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:05:10,227 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2020-07-17 22:05:10,227 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2020-07-17 22:05:10,227 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2020-07-17 22:05:10,227 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2020-07-17 22:05:10,228 WARN L170 areAnnotationChecker]: L84-2 has no Hoare annotation [2020-07-17 22:05:10,228 WARN L170 areAnnotationChecker]: L84-2 has no Hoare annotation [2020-07-17 22:05:10,228 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:05:10,228 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:05:10,228 WARN L170 areAnnotationChecker]: L102-1 has no Hoare annotation [2020-07-17 22:05:10,228 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-17 22:05:10,229 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-17 22:05:10,229 WARN L170 areAnnotationChecker]: L19-3 has no Hoare annotation [2020-07-17 22:05:10,229 WARN L170 areAnnotationChecker]: L84-1 has no Hoare annotation [2020-07-17 22:05:10,229 WARN L170 areAnnotationChecker]: L84-1 has no Hoare annotation [2020-07-17 22:05:10,229 WARN L170 areAnnotationChecker]: L84-3 has no Hoare annotation [2020-07-17 22:05:10,229 WARN L170 areAnnotationChecker]: L105 has no Hoare annotation [2020-07-17 22:05:10,230 WARN L170 areAnnotationChecker]: L105 has no Hoare annotation [2020-07-17 22:05:10,230 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-17 22:05:10,230 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-17 22:05:10,230 WARN L170 areAnnotationChecker]: __signbit_floatFINAL has no Hoare annotation [2020-07-17 22:05:10,231 WARN L170 areAnnotationChecker]: L105-1 has no Hoare annotation [2020-07-17 22:05:10,231 WARN L170 areAnnotationChecker]: L105-1 has no Hoare annotation [2020-07-17 22:05:10,231 WARN L170 areAnnotationChecker]: L105-4 has no Hoare annotation [2020-07-17 22:05:10,231 WARN L170 areAnnotationChecker]: L105-4 has no Hoare annotation [2020-07-17 22:05:10,232 WARN L170 areAnnotationChecker]: __ieee754_sqrtfFINAL has no Hoare annotation [2020-07-17 22:05:10,232 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-17 22:05:10,232 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-17 22:05:10,232 WARN L170 areAnnotationChecker]: __signbit_floatEXIT has no Hoare annotation [2020-07-17 22:05:10,232 WARN L170 areAnnotationChecker]: L105-2 has no Hoare annotation [2020-07-17 22:05:10,233 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2020-07-17 22:05:10,233 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2020-07-17 22:05:10,233 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:05:10,233 WARN L170 areAnnotationChecker]: __ieee754_sqrtfEXIT has no Hoare annotation [2020-07-17 22:05:10,233 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-17 22:05:10,234 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-17 22:05:10,234 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:05:10,234 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-17 22:05:10,234 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-17 22:05:10,234 WARN L170 areAnnotationChecker]: L36-3 has no Hoare annotation [2020-07-17 22:05:10,235 WARN L170 areAnnotationChecker]: L36-3 has no Hoare annotation [2020-07-17 22:05:10,235 WARN L170 areAnnotationChecker]: L36-3 has no Hoare annotation [2020-07-17 22:05:10,235 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2020-07-17 22:05:10,235 WARN L170 areAnnotationChecker]: L36-4 has no Hoare annotation [2020-07-17 22:05:10,235 WARN L170 areAnnotationChecker]: L36-2 has no Hoare annotation [2020-07-17 22:05:10,236 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-17 22:05:10,236 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-17 22:05:10,236 WARN L170 areAnnotationChecker]: L42-2 has no Hoare annotation [2020-07-17 22:05:10,236 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2020-07-17 22:05:10,236 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2020-07-17 22:05:10,237 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2020-07-17 22:05:10,237 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2020-07-17 22:05:10,237 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2020-07-17 22:05:10,237 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-17 22:05:10,237 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-17 22:05:10,237 WARN L170 areAnnotationChecker]: L63 has no Hoare annotation [2020-07-17 22:05:10,238 WARN L170 areAnnotationChecker]: L63 has no Hoare annotation [2020-07-17 22:05:10,238 WARN L170 areAnnotationChecker]: L61 has no Hoare annotation [2020-07-17 22:05:10,238 WARN L170 areAnnotationChecker]: L52-2 has no Hoare annotation [2020-07-17 22:05:10,238 WARN L170 areAnnotationChecker]: L65 has no Hoare annotation [2020-07-17 22:05:10,238 WARN L170 areAnnotationChecker]: L65 has no Hoare annotation [2020-07-17 22:05:10,239 WARN L170 areAnnotationChecker]: L73-2 has no Hoare annotation [2020-07-17 22:05:10,239 WARN L170 areAnnotationChecker]: L73-2 has no Hoare annotation [2020-07-17 22:05:10,239 WARN L170 areAnnotationChecker]: L73-1 has no Hoare annotation [2020-07-17 22:05:10,239 WARN L170 areAnnotationChecker]: L73-1 has no Hoare annotation [2020-07-17 22:05:10,239 WARN L170 areAnnotationChecker]: L73-3 has no Hoare annotation [2020-07-17 22:05:10,239 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 22:05:10,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:05:10 BoogieIcfgContainer [2020-07-17 22:05:10,243 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:05:10,246 INFO L168 Benchmark]: Toolchain (without parser) took 2741.79 ms. Allocated memory was 138.9 MB in the beginning and 236.5 MB in the end (delta: 97.5 MB). Free memory was 104.1 MB in the beginning and 107.9 MB in the end (delta: -3.8 MB). Peak memory consumption was 93.7 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:10,247 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 22:05:10,249 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.80 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 103.7 MB in the beginning and 180.8 MB in the end (delta: -77.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:10,249 INFO L168 Benchmark]: Boogie Preprocessor took 55.77 ms. Allocated memory is still 202.9 MB. Free memory was 180.8 MB in the beginning and 178.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:10,250 INFO L168 Benchmark]: RCFGBuilder took 693.70 ms. Allocated memory is still 202.9 MB. Free memory was 178.8 MB in the beginning and 142.9 MB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:10,251 INFO L168 Benchmark]: TraceAbstraction took 1556.87 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 142.2 MB in the beginning and 107.9 MB in the end (delta: 34.3 MB). Peak memory consumption was 67.9 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:10,255 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 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 428.80 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 103.7 MB in the beginning and 180.8 MB in the end (delta: -77.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 55.77 ms. Allocated memory is still 202.9 MB. Free memory was 180.8 MB in the beginning and 178.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 693.70 ms. Allocated memory is still 202.9 MB. Free memory was 178.8 MB in the beginning and 142.9 MB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1556.87 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 142.2 MB in the beginning and 107.9 MB in the end (delta: 34.3 MB). Peak memory consumption was 67.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 106]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 105, overapproximation of bitwiseAnd at line 24, overapproximation of someUnaryFLOAToperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 27. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [\old(one_sqrt)=8589934598, \old(tiny_sqrt)=8589934596, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L101] float x = -0.0f; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L102] CALL, EXPR __ieee754_sqrtf(x) VAL [\old(x)=8589934597, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L15] float z; [L16] __uint32_t r, hx; [L17] __int32_t ix, s, q, m, t, i; VAL [\old(x)=8589934597, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934597] [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (ix) = gf_u.word [L24] hx = ix & 0x7fffffff VAL [\old(x)=8589934597, ix=-1, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934597] [L26] COND TRUE !((hx) < 0x7f800000L) [L27] return x * x + x; VAL [\old(x)=8589934597, hx=2139095040, ix=-1, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934597] [L102] RET, EXPR __ieee754_sqrtf(x) VAL [__ieee754_sqrtf(x)=8589934592, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934597] [L102] float res = __ieee754_sqrtf(x); [L105] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [one_sqrt=1, res=8589934592, res == -0.0f && __signbit_float(res) == 1=0, tiny_sqrt=1/1000000000000000000000000000000, x=8589934597] [L105] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L106] __VERIFIER_error() VAL [one_sqrt=1, res=8589934592, tiny_sqrt=1/1000000000000000000000000000000, x=8589934597] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 50 SDslu, 5 SDs, 0 SdLazy, 60 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 688 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...