/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_0740.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 11:58:57,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 11:58:57,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 11:58:57,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 11:58:57,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 11:58:57,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 11:58:57,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 11:58:57,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 11:58:57,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 11:58:57,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 11:58:57,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 11:58:57,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 11:58:57,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 11:58:57,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 11:58:57,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 11:58:57,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 11:58:57,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 11:58:57,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 11:58:57,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 11:58:57,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 11:58:57,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 11:58:57,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 11:58:57,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 11:58:57,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 11:58:57,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-08 11:58:57,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 11:58:57,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 11:58:57,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 11:58:57,257 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 [2020-07-08 11:58:57,272 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 11:58:57,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 11:58:57,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-08 11:58:57,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-08 11:58:57,273 INFO L138 SettingsManager]: * Use SBE=true [2020-07-08 11:58:57,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 11:58:57,274 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 11:58:57,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 11:58:57,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 11:58:57,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 11:58:57,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 11:58:57,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 11:58:57,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 11:58:57,275 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 11:58:57,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 11:58:57,275 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 11:58:57,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 11:58:57,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 11:58:57,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-08 11:58:57,276 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 11:58:57,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 11:58:57,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 11:58:57,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 11:58:57,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-08 11:58:57,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-08 11:58:57,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-08 11:58:57,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-08 11:58:57,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 11:58:57,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-08 11:58:57,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-08 11:58:57,543 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 11:58:57,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 11:58:57,561 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 11:58:57,562 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 11:58:57,563 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 11:58:57,563 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0740.c [2020-07-08 11:58:57,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b4f443bd/6b01fe10e9764e368b22a43f2460d85c/FLAG3c6b102ef [2020-07-08 11:58:58,103 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 11:58:58,104 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0740.c [2020-07-08 11:58:58,111 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b4f443bd/6b01fe10e9764e368b22a43f2460d85c/FLAG3c6b102ef [2020-07-08 11:58:58,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b4f443bd/6b01fe10e9764e368b22a43f2460d85c [2020-07-08 11:58:58,528 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 11:58:58,530 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 11:58:58,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 11:58:58,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 11:58:58,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 11:58:58,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 11:58:58" (1/1) ... [2020-07-08 11:58:58,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ffd5db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:58:58, skipping insertion in model container [2020-07-08 11:58:58,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 11:58:58" (1/1) ... [2020-07-08 11:58:58,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 11:58:58,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 11:58:58,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 11:58:58,767 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 11:58:58,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 11:58:58,913 INFO L208 MainTranslator]: Completed translation [2020-07-08 11:58:58,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:58:58 WrapperNode [2020-07-08 11:58:58,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 11:58:58,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 11:58:58,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 11:58:58,914 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 11:58:58,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:58:58" (1/1) ... [2020-07-08 11:58:58,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:58:58" (1/1) ... [2020-07-08 11:58:58,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:58:58" (1/1) ... [2020-07-08 11:58:58,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:58:58" (1/1) ... [2020-07-08 11:58:58,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:58:58" (1/1) ... [2020-07-08 11:58:58,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:58:58" (1/1) ... [2020-07-08 11:58:58,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:58:58" (1/1) ... [2020-07-08 11:58:58,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 11:58:58,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 11:58:58,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 11:58:58,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 11:58:58,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:58:58" (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 [2020-07-08 11:58:59,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 11:58:59,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 11:58:59,030 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-07-08 11:58:59,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2020-07-08 11:58:59,030 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 11:58:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 11:58:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-08 11:58:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-07-08 11:58:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2020-07-08 11:58:59,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-08 11:58:59,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-08 11:58:59,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 11:58:59,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 11:58:59,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 11:58:59,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-08 11:58:59,032 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 11:58:59,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 11:58:59,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 11:58:59,554 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 11:58:59,555 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-08 11:58:59,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 11:58:59 BoogieIcfgContainer [2020-07-08 11:58:59,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 11:58:59,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 11:58:59,561 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 11:58:59,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 11:58:59,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 11:58:58" (1/3) ... [2020-07-08 11:58:59,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13dc968b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 11:58:59, skipping insertion in model container [2020-07-08 11:58:59,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:58:58" (2/3) ... [2020-07-08 11:58:59,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13dc968b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 11:58:59, skipping insertion in model container [2020-07-08 11:58:59,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 11:58:59" (3/3) ... [2020-07-08 11:58:59,567 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740.c [2020-07-08 11:58:59,578 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-08 11:58:59,585 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 11:58:59,595 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 11:58:59,616 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 11:58:59,617 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 11:58:59,617 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-08 11:58:59,617 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 11:58:59,617 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 11:58:59,617 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 11:58:59,617 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 11:58:59,617 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 11:58:59,633 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-07-08 11:58:59,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-08 11:58:59,640 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 11:58:59,640 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] [2020-07-08 11:58:59,641 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 11:58:59,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 11:58:59,646 INFO L82 PathProgramCache]: Analyzing trace with hash 159633202, now seen corresponding path program 1 times [2020-07-08 11:58:59,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 11:58:59,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827317336] [2020-07-08 11:58:59,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 11:58:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 11:58:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 11:58:59,868 INFO L280 TraceCheckUtils]: 0: Hoare triple {63#(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; {49#true} is VALID [2020-07-08 11:58:59,869 INFO L280 TraceCheckUtils]: 1: Hoare triple {49#true} assume true; {49#true} is VALID [2020-07-08 11:58:59,869 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {49#true} {49#true} #130#return; {49#true} is VALID [2020-07-08 11:58:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 11:58:59,899 INFO L280 TraceCheckUtils]: 0: Hoare triple {64#(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; {49#true} is VALID [2020-07-08 11:58:59,901 INFO L280 TraceCheckUtils]: 1: Hoare triple {49#true} assume !true; {50#false} is VALID [2020-07-08 11:58:59,901 INFO L280 TraceCheckUtils]: 2: Hoare triple {50#false} ~hx~0 := ~bitwiseAnd(~ix~0, 2147483647); {50#false} is VALID [2020-07-08 11:58:59,902 INFO L280 TraceCheckUtils]: 3: Hoare triple {50#false} assume !(~hx~0 % 4294967296 < 2139095040);#res := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~x, ~x), ~x); {50#false} is VALID [2020-07-08 11:58:59,902 INFO L280 TraceCheckUtils]: 4: Hoare triple {50#false} assume true; {50#false} is VALID [2020-07-08 11:58:59,902 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {50#false} {49#true} #126#return; {50#false} is VALID [2020-07-08 11:58:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 11:58:59,914 INFO L280 TraceCheckUtils]: 0: Hoare triple {49#true} ~x := #in~x;#res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {49#true} is VALID [2020-07-08 11:58:59,915 INFO L280 TraceCheckUtils]: 1: Hoare triple {49#true} assume true; {49#true} is VALID [2020-07-08 11:58:59,915 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {49#true} {50#false} #128#return; {50#false} is VALID [2020-07-08 11:58:59,917 INFO L263 TraceCheckUtils]: 0: Hoare triple {49#true} call ULTIMATE.init(); {63#(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 [2020-07-08 11:58:59,918 INFO L280 TraceCheckUtils]: 1: Hoare triple {63#(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; {49#true} is VALID [2020-07-08 11:58:59,918 INFO L280 TraceCheckUtils]: 2: Hoare triple {49#true} assume true; {49#true} is VALID [2020-07-08 11:58:59,919 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {49#true} {49#true} #130#return; {49#true} is VALID [2020-07-08 11:58:59,919 INFO L263 TraceCheckUtils]: 4: Hoare triple {49#true} call #t~ret7 := main(); {49#true} is VALID [2020-07-08 11:58:59,920 INFO L280 TraceCheckUtils]: 5: Hoare triple {49#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(~someUnaryFLOAToperation(1.0), 0.0); {49#true} is VALID [2020-07-08 11:58:59,922 INFO L263 TraceCheckUtils]: 6: Hoare triple {49#true} call #t~ret5 := __ieee754_sqrtf(~x~0); {64#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-08 11:58:59,922 INFO L280 TraceCheckUtils]: 7: Hoare triple {64#(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; {49#true} is VALID [2020-07-08 11:58:59,923 INFO L280 TraceCheckUtils]: 8: Hoare triple {49#true} assume !true; {50#false} is VALID [2020-07-08 11:58:59,923 INFO L280 TraceCheckUtils]: 9: Hoare triple {50#false} ~hx~0 := ~bitwiseAnd(~ix~0, 2147483647); {50#false} is VALID [2020-07-08 11:58:59,924 INFO L280 TraceCheckUtils]: 10: Hoare triple {50#false} assume !(~hx~0 % 4294967296 < 2139095040);#res := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~x, ~x), ~x); {50#false} is VALID [2020-07-08 11:58:59,924 INFO L280 TraceCheckUtils]: 11: Hoare triple {50#false} assume true; {50#false} is VALID [2020-07-08 11:58:59,925 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {50#false} {49#true} #126#return; {50#false} is VALID [2020-07-08 11:58:59,925 INFO L280 TraceCheckUtils]: 13: Hoare triple {50#false} ~res~0 := #t~ret5;havoc #t~ret5; {50#false} is VALID [2020-07-08 11:58:59,926 INFO L263 TraceCheckUtils]: 14: Hoare triple {50#false} call #t~ret6 := isnan_float(~res~0); {49#true} is VALID [2020-07-08 11:58:59,926 INFO L280 TraceCheckUtils]: 15: Hoare triple {49#true} ~x := #in~x;#res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {49#true} is VALID [2020-07-08 11:58:59,926 INFO L280 TraceCheckUtils]: 16: Hoare triple {49#true} assume true; {49#true} is VALID [2020-07-08 11:58:59,927 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {49#true} {50#false} #128#return; {50#false} is VALID [2020-07-08 11:58:59,927 INFO L280 TraceCheckUtils]: 18: Hoare triple {50#false} assume -2147483648 <= #t~ret6 && #t~ret6 <= 2147483647; {50#false} is VALID [2020-07-08 11:58:59,928 INFO L280 TraceCheckUtils]: 19: Hoare triple {50#false} assume 0 == #t~ret6;havoc #t~ret6; {50#false} is VALID [2020-07-08 11:58:59,928 INFO L280 TraceCheckUtils]: 20: Hoare triple {50#false} assume !false; {50#false} is VALID [2020-07-08 11:58:59,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 11:58:59,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827317336] [2020-07-08 11:58:59,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 11:58:59,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-08 11:58:59,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831683877] [2020-07-08 11:58:59,947 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-07-08 11:58:59,952 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 11:58:59,956 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-08 11:59:00,009 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 11:59:00,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-08 11:59:00,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 11:59:00,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-08 11:59:00,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-08 11:59:00,021 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 4 states. [2020-07-08 11:59:00,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 11:59:00,484 INFO L93 Difference]: Finished difference Result 84 states and 118 transitions. [2020-07-08 11:59:00,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-08 11:59:00,484 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-07-08 11:59:00,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 11:59:00,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 11:59:00,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2020-07-08 11:59:00,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 11:59:00,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2020-07-08 11:59:00,508 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 118 transitions. [2020-07-08 11:59:00,671 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 118 edges. 118 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 11:59:00,685 INFO L225 Difference]: With dead ends: 84 [2020-07-08 11:59:00,686 INFO L226 Difference]: Without dead ends: 42 [2020-07-08 11:59:00,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-08 11:59:00,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-08 11:59:00,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-07-08 11:59:00,766 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 11:59:00,767 INFO L82 GeneralOperation]: Start isEquivalent. First operand 42 states. Second operand 42 states. [2020-07-08 11:59:00,767 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 42 states. [2020-07-08 11:59:00,767 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 42 states. [2020-07-08 11:59:00,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 11:59:00,773 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2020-07-08 11:59:00,773 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2020-07-08 11:59:00,774 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 11:59:00,774 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 11:59:00,774 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 42 states. [2020-07-08 11:59:00,775 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 42 states. [2020-07-08 11:59:00,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 11:59:00,780 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2020-07-08 11:59:00,780 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2020-07-08 11:59:00,780 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 11:59:00,781 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 11:59:00,781 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 11:59:00,781 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 11:59:00,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-07-08 11:59:00,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2020-07-08 11:59:00,786 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 52 transitions. Word has length 21 [2020-07-08 11:59:00,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 11:59:00,787 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 52 transitions. [2020-07-08 11:59:00,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-08 11:59:00,787 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2020-07-08 11:59:00,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-08 11:59:00,788 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 11:59:00,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 11:59:00,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 11:59:00,789 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 11:59:00,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 11:59:00,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1643831456, now seen corresponding path program 1 times [2020-07-08 11:59:00,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 11:59:00,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205248747] [2020-07-08 11:59:00,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 11:59:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 11:59:00,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 11:59:00,909 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-08 11:59:00,910 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-08 11:59:00,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 11:59:00,948 WARN L170 areAnnotationChecker]: isnan_floatENTRY has no Hoare annotation [2020-07-08 11:59:00,948 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-08 11:59:00,948 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 11:59:00,949 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 11:59:00,949 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-08 11:59:00,949 WARN L170 areAnnotationChecker]: __ieee754_sqrtfENTRY has no Hoare annotation [2020-07-08 11:59:00,949 WARN L170 areAnnotationChecker]: isnan_floatFINAL has no Hoare annotation [2020-07-08 11:59:00,949 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-08 11:59:00,949 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 11:59:00,950 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 11:59:00,950 WARN L170 areAnnotationChecker]: L93 has no Hoare annotation [2020-07-08 11:59:00,950 WARN L170 areAnnotationChecker]: L93 has no Hoare annotation [2020-07-08 11:59:00,950 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2020-07-08 11:59:00,950 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2020-07-08 11:59:00,950 WARN L170 areAnnotationChecker]: isnan_floatEXIT has no Hoare annotation [2020-07-08 11:59:00,950 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 11:59:00,951 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 11:59:00,951 WARN L170 areAnnotationChecker]: L93-1 has no Hoare annotation [2020-07-08 11:59:00,951 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2020-07-08 11:59:00,951 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2020-07-08 11:59:00,951 WARN L170 areAnnotationChecker]: L22-3 has no Hoare annotation [2020-07-08 11:59:00,951 WARN L170 areAnnotationChecker]: L96-1 has no Hoare annotation [2020-07-08 11:59:00,951 WARN L170 areAnnotationChecker]: L96 has no Hoare annotation [2020-07-08 11:59:00,951 WARN L170 areAnnotationChecker]: L96 has no Hoare annotation [2020-07-08 11:59:00,952 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-08 11:59:00,952 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-08 11:59:00,952 WARN L170 areAnnotationChecker]: L96-2 has no Hoare annotation [2020-07-08 11:59:00,952 WARN L170 areAnnotationChecker]: L96-2 has no Hoare annotation [2020-07-08 11:59:00,952 WARN L170 areAnnotationChecker]: __ieee754_sqrtfFINAL has no Hoare annotation [2020-07-08 11:59:00,952 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-08 11:59:00,952 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-08 11:59:00,953 WARN L170 areAnnotationChecker]: L97 has no Hoare annotation [2020-07-08 11:59:00,953 WARN L170 areAnnotationChecker]: L97 has no Hoare annotation [2020-07-08 11:59:00,953 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 11:59:00,953 WARN L170 areAnnotationChecker]: __ieee754_sqrtfEXIT has no Hoare annotation [2020-07-08 11:59:00,953 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-08 11:59:00,953 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-08 11:59:00,953 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-08 11:59:00,954 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-08 11:59:00,954 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-08 11:59:00,954 WARN L170 areAnnotationChecker]: L39-3 has no Hoare annotation [2020-07-08 11:59:00,954 WARN L170 areAnnotationChecker]: L39-3 has no Hoare annotation [2020-07-08 11:59:00,954 WARN L170 areAnnotationChecker]: L39-3 has no Hoare annotation [2020-07-08 11:59:00,954 WARN L170 areAnnotationChecker]: L38-2 has no Hoare annotation [2020-07-08 11:59:00,954 WARN L170 areAnnotationChecker]: L39-4 has no Hoare annotation [2020-07-08 11:59:00,955 WARN L170 areAnnotationChecker]: L39-2 has no Hoare annotation [2020-07-08 11:59:00,955 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2020-07-08 11:59:00,955 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2020-07-08 11:59:00,955 WARN L170 areAnnotationChecker]: L45-2 has no Hoare annotation [2020-07-08 11:59:00,955 WARN L170 areAnnotationChecker]: L53-2 has no Hoare annotation [2020-07-08 11:59:00,955 WARN L170 areAnnotationChecker]: L53-2 has no Hoare annotation [2020-07-08 11:59:00,955 WARN L170 areAnnotationChecker]: L53-2 has no Hoare annotation [2020-07-08 11:59:00,956 WARN L170 areAnnotationChecker]: L53-3 has no Hoare annotation [2020-07-08 11:59:00,956 WARN L170 areAnnotationChecker]: L53-3 has no Hoare annotation [2020-07-08 11:59:00,956 WARN L170 areAnnotationChecker]: L55 has no Hoare annotation [2020-07-08 11:59:00,956 WARN L170 areAnnotationChecker]: L55 has no Hoare annotation [2020-07-08 11:59:00,956 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-08 11:59:00,956 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-08 11:59:00,956 WARN L170 areAnnotationChecker]: L64 has no Hoare annotation [2020-07-08 11:59:00,957 WARN L170 areAnnotationChecker]: L55-2 has no Hoare annotation [2020-07-08 11:59:00,957 WARN L170 areAnnotationChecker]: L68 has no Hoare annotation [2020-07-08 11:59:00,957 WARN L170 areAnnotationChecker]: L68 has no Hoare annotation [2020-07-08 11:59:00,957 WARN L170 areAnnotationChecker]: L76-2 has no Hoare annotation [2020-07-08 11:59:00,957 WARN L170 areAnnotationChecker]: L76-2 has no Hoare annotation [2020-07-08 11:59:00,957 WARN L170 areAnnotationChecker]: L76-1 has no Hoare annotation [2020-07-08 11:59:00,957 WARN L170 areAnnotationChecker]: L76-1 has no Hoare annotation [2020-07-08 11:59:00,958 WARN L170 areAnnotationChecker]: L76-3 has no Hoare annotation [2020-07-08 11:59:00,958 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. [2020-07-08 11:59:00,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 11:59:00 BoogieIcfgContainer [2020-07-08 11:59:00,961 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 11:59:00,964 INFO L168 Benchmark]: Toolchain (without parser) took 2433.37 ms. Allocated memory was 137.9 MB in the beginning and 233.8 MB in the end (delta: 95.9 MB). Free memory was 102.9 MB in the beginning and 118.3 MB in the end (delta: -15.5 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. [2020-07-08 11:59:00,965 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-08 11:59:00,966 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.48 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 102.6 MB in the beginning and 179.8 MB in the end (delta: -77.1 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-07-08 11:59:00,967 INFO L168 Benchmark]: Boogie Preprocessor took 50.84 ms. Allocated memory is still 201.9 MB. Free memory was 179.8 MB in the beginning and 177.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-07-08 11:59:00,968 INFO L168 Benchmark]: RCFGBuilder took 594.41 ms. Allocated memory is still 201.9 MB. Free memory was 177.7 MB in the beginning and 145.2 MB in the end (delta: 32.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. [2020-07-08 11:59:00,969 INFO L168 Benchmark]: TraceAbstraction took 1400.01 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 144.5 MB in the beginning and 118.3 MB in the end (delta: 26.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. [2020-07-08 11:59:00,973 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 0.18 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 382.48 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 102.6 MB in the beginning and 179.8 MB in the end (delta: -77.1 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.84 ms. Allocated memory is still 201.9 MB. Free memory was 179.8 MB in the beginning and 177.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 594.41 ms. Allocated memory is still 201.9 MB. Free memory was 177.7 MB in the beginning and 145.2 MB in the end (delta: 32.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1400.01 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 144.5 MB in the beginning and 118.3 MB in the end (delta: 26.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 97]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someBinaryArithmeticFLOAToperation at line 30, overapproximation of bitwiseAnd at line 27. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [\old(one_sqrt)=8589934598, \old(tiny_sqrt)=8589934595, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L91] float x = -1.0f / 0.0f; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L93] CALL, EXPR __ieee754_sqrtf(x) VAL [\old(x)=8589934596, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L18] float z; [L19] __uint32_t r, hx; [L20] __int32_t ix, s, q, m, t, i; VAL [\old(x)=8589934596, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934596] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (ix) = gf_u.word [L27] hx = ix & 0x7fffffff VAL [\old(x)=8589934596, ix=-1, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934596] [L29] COND TRUE !((hx) < 0x7f800000L) [L30] return x * x + x; VAL [\old(x)=8589934596, hx=2139095040, ix=-1, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934596] [L93] RET, EXPR __ieee754_sqrtf(x) VAL [__ieee754_sqrtf(x)=8589934597, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934596] [L93] float res = __ieee754_sqrtf(x); [L96] CALL, EXPR isnan_float(res) VAL [\old(x)=8589934597, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L13] return x != x; VAL [\old(x)=8589934597, \result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934597] [L96] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, one_sqrt=1, res=8589934597, tiny_sqrt=1/1000000000000000000000000000000, x=8589934596] [L96] COND TRUE !isnan_float(res) [L97] __VERIFIER_error() VAL [one_sqrt=1, res=8589934597, tiny_sqrt=1/1000000000000000000000000000000, x=8589934596] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 47 SDslu, 5 SDs, 0 SdLazy, 53 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 940 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...