/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_1052a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:05:30,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:05:30,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:05:30,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:05:30,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:05:30,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:05:30,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:05:30,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:05:30,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:05:30,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:05:30,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:05:30,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:05:30,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:05:30,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:05:30,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:05:30,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:05:30,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:05:30,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:05:30,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:05:30,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:05:30,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:05:30,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:05:30,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:05:30,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:05:30,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:05:30,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:05:30,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:05:30,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:05:30,288 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 22:05:30,302 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:05:30,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:05:30,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:05:30,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:05:30,304 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:05:30,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:05:30,305 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:05:30,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:05:30,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:05:30,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:05:30,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:05:30,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:05:30,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:05:30,306 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:05:30,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:05:30,307 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:05:30,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:05:30,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:05:30,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:05:30,307 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:05:30,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:05:30,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:05:30,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:05:30,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:05:30,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:05:30,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:05:30,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:05:30,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:05:30,309 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:05:30,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:05:30,584 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:05:30,597 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:05:30,601 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:05:30,602 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:05:30,603 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:05:30,603 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1052a.c [2020-07-17 22:05:30,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c4541c3d/12ea0d1f15234b11a2aea95241a23ca7/FLAG5369163c5 [2020-07-17 22:05:31,078 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:05:31,079 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1052a.c [2020-07-17 22:05:31,086 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c4541c3d/12ea0d1f15234b11a2aea95241a23ca7/FLAG5369163c5 [2020-07-17 22:05:31,513 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c4541c3d/12ea0d1f15234b11a2aea95241a23ca7 [2020-07-17 22:05:31,523 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:05:31,526 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:05:31,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:05:31,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:05:31,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:05:31,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:05:31" (1/1) ... [2020-07-17 22:05:31,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@690d4193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31, skipping insertion in model container [2020-07-17 22:05:31,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:05:31" (1/1) ... [2020-07-17 22:05:31,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:05:31,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:05:31,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:05:31,746 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:05:31,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:05:31,964 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:05:31,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31 WrapperNode [2020-07-17 22:05:31,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:05:31,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:05:31,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:05:31,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:05:31,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31" (1/1) ... [2020-07-17 22:05:31,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31" (1/1) ... [2020-07-17 22:05:32,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31" (1/1) ... [2020-07-17 22:05:32,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31" (1/1) ... [2020-07-17 22:05:32,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31" (1/1) ... [2020-07-17 22:05:32,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31" (1/1) ... [2020-07-17 22:05:32,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31" (1/1) ... [2020-07-17 22:05:32,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:05:32,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:05:32,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:05:32,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:05:32,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:05:32,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:05:32,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:05:32,144 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2020-07-17 22:05:32,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2020-07-17 22:05:32,144 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:05:32,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:05:32,145 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2020-07-17 22:05:32,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 22:05:32,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 22:05:32,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:05:32,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:05:32,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:05:32,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 22:05:32,147 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2020-07-17 22:05:32,148 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:05:32,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:05:32,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:05:32,722 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:05:32,723 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-17 22:05:32,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:05:32 BoogieIcfgContainer [2020-07-17 22:05:32,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:05:32,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:05:32,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:05:32,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:05:32,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:05:31" (1/3) ... [2020-07-17 22:05:32,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a9288b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:05:32, skipping insertion in model container [2020-07-17 22:05:32,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:31" (2/3) ... [2020-07-17 22:05:32,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a9288b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:05:32, skipping insertion in model container [2020-07-17 22:05:32,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:05:32" (3/3) ... [2020-07-17 22:05:32,743 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052a.c [2020-07-17 22:05:32,754 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:05:32,762 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:05:32,774 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:05:32,795 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:05:32,795 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:05:32,796 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:05:32,796 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:05:32,796 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:05:32,796 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:05:32,797 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:05:32,797 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:05:32,815 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-07-17 22:05:32,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-17 22:05:32,822 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:05:32,824 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, 1] [2020-07-17 22:05:32,824 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:05:32,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:05:32,830 INFO L82 PathProgramCache]: Analyzing trace with hash -305625155, now seen corresponding path program 1 times [2020-07-17 22:05:32,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:05:32,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559881611] [2020-07-17 22:05:32,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:05:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:33,051 INFO L280 TraceCheckUtils]: 0: Hoare triple {62#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~huge_floor~0 |old(~huge_floor~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~huge_floor~0 := 1.0E30; {45#true} is VALID [2020-07-17 22:05:33,052 INFO L280 TraceCheckUtils]: 1: Hoare triple {45#true} assume true; {45#true} is VALID [2020-07-17 22:05:33,053 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {45#true} {45#true} #108#return; {45#true} is VALID [2020-07-17 22:05:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:33,097 INFO L280 TraceCheckUtils]: 0: Hoare triple {63#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~i0~0;havoc ~j0~0;havoc ~i~0;havoc ~ix~0; {45#true} is VALID [2020-07-17 22:05:33,099 INFO L280 TraceCheckUtils]: 1: Hoare triple {45#true} assume !true; {46#false} is VALID [2020-07-17 22:05:33,099 INFO L280 TraceCheckUtils]: 2: Hoare triple {46#false} ~ix~0 := ~bitwiseAnd(~i0~0, 2147483647);~j0~0 := (if (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 <= 2147483647 then (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 else (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 - 4294967296); {46#false} is VALID [2020-07-17 22:05:33,100 INFO L280 TraceCheckUtils]: 3: Hoare triple {46#false} assume !(~j0~0 < 23); {46#false} is VALID [2020-07-17 22:05:33,100 INFO L280 TraceCheckUtils]: 4: Hoare triple {46#false} assume !(~ix~0 % 4294967296 < 2139095040);#res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {46#false} is VALID [2020-07-17 22:05:33,100 INFO L280 TraceCheckUtils]: 5: Hoare triple {46#false} assume true; {46#false} is VALID [2020-07-17 22:05:33,101 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {46#false} {45#true} #112#return; {46#false} is VALID [2020-07-17 22:05:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:33,112 INFO L280 TraceCheckUtils]: 0: Hoare triple {63#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~ix~1; {45#true} is VALID [2020-07-17 22:05:33,113 INFO L280 TraceCheckUtils]: 1: Hoare triple {45#true} assume !true; {46#false} is VALID [2020-07-17 22:05:33,114 INFO L280 TraceCheckUtils]: 2: Hoare triple {46#false} ~ix~1 := ~bitwiseAnd(~ix~1, 2147483647);#res := (if 2139095040 == ~ix~1 then 1 else 0); {46#false} is VALID [2020-07-17 22:05:33,114 INFO L280 TraceCheckUtils]: 3: Hoare triple {46#false} assume true; {46#false} is VALID [2020-07-17 22:05:33,114 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {46#false} {46#false} #114#return; {46#false} is VALID [2020-07-17 22:05:33,117 INFO L263 TraceCheckUtils]: 0: Hoare triple {45#true} call ULTIMATE.init(); {62#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~huge_floor~0 |old(~huge_floor~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:05:33,117 INFO L280 TraceCheckUtils]: 1: Hoare triple {62#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~huge_floor~0 |old(~huge_floor~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~huge_floor~0 := 1.0E30; {45#true} is VALID [2020-07-17 22:05:33,118 INFO L280 TraceCheckUtils]: 2: Hoare triple {45#true} assume true; {45#true} is VALID [2020-07-17 22:05:33,118 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {45#true} {45#true} #108#return; {45#true} is VALID [2020-07-17 22:05:33,118 INFO L263 TraceCheckUtils]: 4: Hoare triple {45#true} call #t~ret8 := main(); {45#true} is VALID [2020-07-17 22:05:33,119 INFO L280 TraceCheckUtils]: 5: Hoare triple {45#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(1.0, 0.0); {45#true} is VALID [2020-07-17 22:05:33,121 INFO L263 TraceCheckUtils]: 6: Hoare triple {45#true} call #t~ret6 := floor_float(~x~0); {63#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-17 22:05:33,122 INFO L280 TraceCheckUtils]: 7: Hoare triple {63#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~i0~0;havoc ~j0~0;havoc ~i~0;havoc ~ix~0; {45#true} is VALID [2020-07-17 22:05:33,123 INFO L280 TraceCheckUtils]: 8: Hoare triple {45#true} assume !true; {46#false} is VALID [2020-07-17 22:05:33,123 INFO L280 TraceCheckUtils]: 9: Hoare triple {46#false} ~ix~0 := ~bitwiseAnd(~i0~0, 2147483647);~j0~0 := (if (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 <= 2147483647 then (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 else (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 - 4294967296); {46#false} is VALID [2020-07-17 22:05:33,123 INFO L280 TraceCheckUtils]: 10: Hoare triple {46#false} assume !(~j0~0 < 23); {46#false} is VALID [2020-07-17 22:05:33,124 INFO L280 TraceCheckUtils]: 11: Hoare triple {46#false} assume !(~ix~0 % 4294967296 < 2139095040);#res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {46#false} is VALID [2020-07-17 22:05:33,124 INFO L280 TraceCheckUtils]: 12: Hoare triple {46#false} assume true; {46#false} is VALID [2020-07-17 22:05:33,124 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {46#false} {45#true} #112#return; {46#false} is VALID [2020-07-17 22:05:33,125 INFO L280 TraceCheckUtils]: 14: Hoare triple {46#false} ~res~0 := #t~ret6;havoc #t~ret6; {46#false} is VALID [2020-07-17 22:05:33,125 INFO L263 TraceCheckUtils]: 15: Hoare triple {46#false} call #t~ret7 := isinf_float(~res~0); {63#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-17 22:05:33,125 INFO L280 TraceCheckUtils]: 16: Hoare triple {63#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~ix~1; {45#true} is VALID [2020-07-17 22:05:33,127 INFO L280 TraceCheckUtils]: 17: Hoare triple {45#true} assume !true; {46#false} is VALID [2020-07-17 22:05:33,127 INFO L280 TraceCheckUtils]: 18: Hoare triple {46#false} ~ix~1 := ~bitwiseAnd(~ix~1, 2147483647);#res := (if 2139095040 == ~ix~1 then 1 else 0); {46#false} is VALID [2020-07-17 22:05:33,127 INFO L280 TraceCheckUtils]: 19: Hoare triple {46#false} assume true; {46#false} is VALID [2020-07-17 22:05:33,128 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {46#false} {46#false} #114#return; {46#false} is VALID [2020-07-17 22:05:33,128 INFO L280 TraceCheckUtils]: 21: Hoare triple {46#false} assume -2147483648 <= #t~ret7 && #t~ret7 <= 2147483647; {46#false} is VALID [2020-07-17 22:05:33,128 INFO L280 TraceCheckUtils]: 22: Hoare triple {46#false} assume 0 == #t~ret7;havoc #t~ret7; {46#false} is VALID [2020-07-17 22:05:33,129 INFO L280 TraceCheckUtils]: 23: Hoare triple {46#false} assume !false; {46#false} is VALID [2020-07-17 22:05:33,134 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 22:05:33,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559881611] [2020-07-17 22:05:33,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:05:33,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 22:05:33,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369414282] [2020-07-17 22:05:33,145 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-17 22:05:33,148 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:05:33,153 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-17 22:05:33,236 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:05:33,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 22:05:33,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:05:33,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 22:05:33,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 22:05:33,249 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 4 states. [2020-07-17 22:05:33,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:33,708 INFO L93 Difference]: Finished difference Result 76 states and 107 transitions. [2020-07-17 22:05:33,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 22:05:33,709 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-17 22:05:33,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:05:33,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:05:33,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2020-07-17 22:05:33,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:05:33,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2020-07-17 22:05:33,729 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 107 transitions. [2020-07-17 22:05:33,906 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 107 edges. 107 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:05:33,933 INFO L225 Difference]: With dead ends: 76 [2020-07-17 22:05:33,933 INFO L226 Difference]: Without dead ends: 38 [2020-07-17 22:05:33,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 22:05:33,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-07-17 22:05:34,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-07-17 22:05:34,017 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:05:34,018 INFO L82 GeneralOperation]: Start isEquivalent. First operand 38 states. Second operand 38 states. [2020-07-17 22:05:34,018 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states. [2020-07-17 22:05:34,019 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states. [2020-07-17 22:05:34,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:34,025 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2020-07-17 22:05:34,025 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2020-07-17 22:05:34,026 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:05:34,026 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:05:34,026 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states. [2020-07-17 22:05:34,026 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states. [2020-07-17 22:05:34,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:34,031 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2020-07-17 22:05:34,032 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2020-07-17 22:05:34,032 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:05:34,033 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:05:34,033 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:05:34,033 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:05:34,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-07-17 22:05:34,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2020-07-17 22:05:34,038 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 24 [2020-07-17 22:05:34,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:05:34,039 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2020-07-17 22:05:34,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 22:05:34,039 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2020-07-17 22:05:34,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-17 22:05:34,041 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:05:34,041 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, 1, 1, 1] [2020-07-17 22:05:34,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:05:34,042 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:05:34,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:05:34,042 INFO L82 PathProgramCache]: Analyzing trace with hash -231212118, now seen corresponding path program 1 times [2020-07-17 22:05:34,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:05:34,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036162670] [2020-07-17 22:05:34,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:05:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:05:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:05:34,422 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 22:05:34,422 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 22:05:34,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:05:34,483 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-17 22:05:34,483 WARN L170 areAnnotationChecker]: isinf_floatENTRY has no Hoare annotation [2020-07-17 22:05:34,484 WARN L170 areAnnotationChecker]: floor_floatENTRY has no Hoare annotation [2020-07-17 22:05:34,484 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:05:34,484 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:05:34,484 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-17 22:05:34,484 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:05:34,484 WARN L170 areAnnotationChecker]: L59-2 has no Hoare annotation [2020-07-17 22:05:34,484 WARN L170 areAnnotationChecker]: L59-2 has no Hoare annotation [2020-07-17 22:05:34,485 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-17 22:05:34,485 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-17 22:05:34,485 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:05:34,485 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:05:34,485 WARN L170 areAnnotationChecker]: L76 has no Hoare annotation [2020-07-17 22:05:34,485 WARN L170 areAnnotationChecker]: L76 has no Hoare annotation [2020-07-17 22:05:34,485 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:05:34,486 WARN L170 areAnnotationChecker]: L59-1 has no Hoare annotation [2020-07-17 22:05:34,486 WARN L170 areAnnotationChecker]: L59-1 has no Hoare annotation [2020-07-17 22:05:34,486 WARN L170 areAnnotationChecker]: L59-3 has no Hoare annotation [2020-07-17 22:05:34,486 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-17 22:05:34,486 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-17 22:05:34,486 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-17 22:05:34,486 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:05:34,487 WARN L170 areAnnotationChecker]: L76-1 has no Hoare annotation [2020-07-17 22:05:34,487 WARN L170 areAnnotationChecker]: isinf_floatFINAL has no Hoare annotation [2020-07-17 22:05:34,487 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:05:34,487 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:05:34,487 WARN L170 areAnnotationChecker]: L79 has no Hoare annotation [2020-07-17 22:05:34,487 WARN L170 areAnnotationChecker]: L79 has no Hoare annotation [2020-07-17 22:05:34,488 WARN L170 areAnnotationChecker]: isinf_floatEXIT has no Hoare annotation [2020-07-17 22:05:34,488 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-17 22:05:34,488 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-17 22:05:34,488 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-17 22:05:34,488 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-17 22:05:34,488 WARN L170 areAnnotationChecker]: L79-1 has no Hoare annotation [2020-07-17 22:05:34,488 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-17 22:05:34,489 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-17 22:05:34,489 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-17 22:05:34,489 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-17 22:05:34,489 WARN L170 areAnnotationChecker]: floor_floatFINAL has no Hoare annotation [2020-07-17 22:05:34,489 WARN L170 areAnnotationChecker]: L79-2 has no Hoare annotation [2020-07-17 22:05:34,489 WARN L170 areAnnotationChecker]: L79-2 has no Hoare annotation [2020-07-17 22:05:34,489 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-17 22:05:34,490 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-17 22:05:34,490 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-17 22:05:34,490 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-17 22:05:34,490 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-17 22:05:34,490 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-17 22:05:34,490 WARN L170 areAnnotationChecker]: floor_floatEXIT has no Hoare annotation [2020-07-17 22:05:34,490 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2020-07-17 22:05:34,491 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2020-07-17 22:05:34,491 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:05:34,491 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-17 22:05:34,491 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-17 22:05:34,491 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-17 22:05:34,491 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-17 22:05:34,491 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-17 22:05:34,492 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-17 22:05:34,492 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-17 22:05:34,492 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:05:34,492 WARN L170 areAnnotationChecker]: L37-2 has no Hoare annotation [2020-07-17 22:05:34,492 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 22:05:34,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:05:34 BoogieIcfgContainer [2020-07-17 22:05:34,495 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:05:34,499 INFO L168 Benchmark]: Toolchain (without parser) took 2973.33 ms. Allocated memory was 139.5 MB in the beginning and 231.7 MB in the end (delta: 92.3 MB). Free memory was 104.4 MB in the beginning and 119.8 MB in the end (delta: -15.4 MB). Peak memory consumption was 76.9 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:34,500 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-17 22:05:34,501 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.46 ms. Allocated memory was 139.5 MB in the beginning and 207.6 MB in the end (delta: 68.2 MB). Free memory was 104.0 MB in the beginning and 186.6 MB in the end (delta: -82.6 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:34,502 INFO L168 Benchmark]: Boogie Preprocessor took 81.04 ms. Allocated memory is still 207.6 MB. Free memory was 186.6 MB in the beginning and 184.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:34,503 INFO L168 Benchmark]: RCFGBuilder took 682.13 ms. Allocated memory is still 207.6 MB. Free memory was 183.6 MB in the beginning and 153.2 MB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:34,504 INFO L168 Benchmark]: TraceAbstraction took 1765.43 ms. Allocated memory was 207.6 MB in the beginning and 231.7 MB in the end (delta: 24.1 MB). Free memory was 152.6 MB in the beginning and 119.8 MB in the end (delta: 32.8 MB). Peak memory consumption was 56.9 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:34,508 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 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 438.46 ms. Allocated memory was 139.5 MB in the beginning and 207.6 MB in the end (delta: 68.2 MB). Free memory was 104.0 MB in the beginning and 186.6 MB in the end (delta: -82.6 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 81.04 ms. Allocated memory is still 207.6 MB. Free memory was 186.6 MB in the beginning and 184.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 682.13 ms. Allocated memory is still 207.6 MB. Free memory was 183.6 MB in the beginning and 153.2 MB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1765.43 ms. Allocated memory was 207.6 MB in the beginning and 231.7 MB in the end (delta: 24.1 MB). Free memory was 152.6 MB in the beginning and 119.8 MB in the end (delta: 32.8 MB). Peak memory consumption was 56.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 64. Possible FailurePath: [L11] static const float huge_floor = 1.0e30; VAL [\old(huge_floor)=1000000000000000000000000000005, huge_floor=1000000000000000000000000000000] [L75] float x = 1.0f / 0.0f; VAL [huge_floor=1000000000000000000000000000000] [L76] CALL, EXPR floor_float(x) VAL [\old(x)=1000000000000000000000000000009, huge_floor=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [\old(x)=1000000000000000000000000000009, huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000009] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [\old(x)=1000000000000000000000000000009, huge_floor=1000000000000000000000000000000, i=18014396353609728, i0=-1, j0=2147483264, x=1000000000000000000000000000009] [L23] COND FALSE !(j0 < 23) VAL [\old(x)=1000000000000000000000000000009, huge_floor=1000000000000000000000000000000, i=18014396353609728, i0=-1, j0=2147483264, x=1000000000000000000000000000009] [L43] COND TRUE !((ix) < 0x7f800000L) [L44] return x + x; VAL [\old(x)=1000000000000000000000000000009, huge_floor=1000000000000000000000000000000, i=18014396353609728, i0=-1, j0=2147483264, x=1000000000000000000000000000009] [L76] RET, EXPR floor_float(x) VAL [floor_float(x)=1000000000000000000000000000002, huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000009] [L76] float res = floor_float(x); [L79] CALL, EXPR isinf_float(res) VAL [\old(x)=1000000000000000000000000000002, huge_floor=1000000000000000000000000000000] [L58] __int32_t ix; VAL [\old(x)=1000000000000000000000000000002, huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000002] [L60] ieee_float_shape_type gf_u; [L61] gf_u.value = (x) [L62] EXPR gf_u.word [L62] (ix) = gf_u.word [L64] ix &= 0x7fffffff [L65] return ((ix) == 0x7f800000L); VAL [\old(x)=1000000000000000000000000000002, \result=0, huge_floor=1000000000000000000000000000000, ix=0, x=1000000000000000000000000000002] [L79] RET, EXPR isinf_float(res) VAL [huge_floor=1000000000000000000000000000000, isinf_float(res)=0, res=1000000000000000000000000000002, x=1000000000000000000000000000009] [L79] COND TRUE !isinf_float(res) [L80] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000, res=1000000000000000000000000000002, x=1000000000000000000000000000009] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 44 SDtfs, 39 SDslu, 5 SDs, 0 SdLazy, 49 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 1357 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...