/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 0.1.25-267fbe0 [2020-07-17 22:05:06,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:05:06,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:05:06,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:05:06,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:05:06,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:05:06,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:05:06,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:05:06,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:05:06,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:05:06,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:05:06,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:05:06,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:05:06,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:05:06,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:05:06,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:05:06,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:05:06,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:05:06,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:05:06,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:05:06,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:05:06,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:05:06,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:05:06,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:05:06,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:05:06,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:05:06,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:05:06,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:05:06,611 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 22:05:06,630 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:05:06,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:05:06,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:05:06,632 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:05:06,632 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:05:06,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:05:06,632 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:05:06,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:05:06,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:05:06,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:05:06,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:05:06,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:05:06,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:05:06,634 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:05:06,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:05:06,634 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:05:06,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:05:06,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:05:06,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:05:06,635 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:05:06,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:05:06,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:05:06,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:05:06,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:05:06,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:05:06,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:05:06,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:05:06,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:05:06,636 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:05:06,637 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:05:06,959 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:05:06,977 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:05:06,980 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:05:06,982 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:05:06,982 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:05:06,983 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0740.c [2020-07-17 22:05:07,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c93a7593d/8bfe9022517a4ba2b46877f6561feab1/FLAGc4e48014c [2020-07-17 22:05:07,472 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:05:07,473 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0740.c [2020-07-17 22:05:07,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c93a7593d/8bfe9022517a4ba2b46877f6561feab1/FLAGc4e48014c [2020-07-17 22:05:07,870 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c93a7593d/8bfe9022517a4ba2b46877f6561feab1 [2020-07-17 22:05:07,879 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:05:07,881 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:05:07,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:05:07,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:05:07,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:05:07,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:05:07" (1/1) ... [2020-07-17 22:05:07,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eedc7be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:07, skipping insertion in model container [2020-07-17 22:05:07,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:05:07" (1/1) ... [2020-07-17 22:05:07,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:05:07,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:05:08,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:05:08,132 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:05:08,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:05:08,279 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:05:08,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:08 WrapperNode [2020-07-17 22:05:08,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:05:08,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:05:08,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:05:08,281 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:05:08,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:08" (1/1) ... [2020-07-17 22:05:08,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:08" (1/1) ... [2020-07-17 22:05:08,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:08" (1/1) ... [2020-07-17 22:05:08,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:08" (1/1) ... [2020-07-17 22:05:08,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:08" (1/1) ... [2020-07-17 22:05:08,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:08" (1/1) ... [2020-07-17 22:05:08,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:08" (1/1) ... [2020-07-17 22:05:08,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:05:08,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:05:08,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:05:08,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:05:08,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:05:08,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:05:08,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:05:08,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-07-17 22:05:08,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2020-07-17 22:05:08,394 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:05:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:05:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-17 22:05:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-07-17 22:05:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2020-07-17 22:05:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 22:05:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 22:05:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:05:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:05:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:05:08,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 22:05:08,396 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:05:08,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:05:08,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:05:08,914 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:05:08,915 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-17 22:05:08,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:05:08 BoogieIcfgContainer [2020-07-17 22:05:08,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:05:08,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:05:08,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:05:08,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:05:08,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:05:07" (1/3) ... [2020-07-17 22:05:08,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@988359f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:05:08, skipping insertion in model container [2020-07-17 22:05:08,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:08" (2/3) ... [2020-07-17 22:05:08,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@988359f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:05:08, skipping insertion in model container [2020-07-17 22:05:08,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:05:08" (3/3) ... [2020-07-17 22:05:08,928 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740.c [2020-07-17 22:05:08,938 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:05:08,945 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:05:08,957 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:05:08,980 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:05:08,980 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:05:08,980 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:05:08,980 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:05:08,981 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:05:08,981 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:05:08,981 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:05:08,981 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:05:09,000 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-07-17 22:05:09,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-17 22:05:09,007 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:05:09,008 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] [2020-07-17 22:05:09,009 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:05:09,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:05:09,013 INFO L82 PathProgramCache]: Analyzing trace with hash 159633202, now seen corresponding path program 1 times [2020-07-17 22:05:09,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:05:09,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941558844] [2020-07-17 22:05:09,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:05:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:09,264 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 [2020-07-17 22:05:09,265 INFO L280 TraceCheckUtils]: 1: Hoare triple {49#true} assume true; {49#true} is VALID [2020-07-17 22:05:09,265 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {49#true} {49#true} #130#return; {49#true} is VALID [2020-07-17 22:05:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:09,332 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 [2020-07-17 22:05:09,333 INFO L280 TraceCheckUtils]: 1: Hoare triple {49#true} assume !true; {50#false} is VALID [2020-07-17 22:05:09,334 INFO L280 TraceCheckUtils]: 2: Hoare triple {50#false} ~hx~0 := ~bitwiseAnd(~ix~0, 2147483647); {50#false} is VALID [2020-07-17 22:05:09,334 INFO L280 TraceCheckUtils]: 3: Hoare triple {50#false} assume !(~hx~0 % 4294967296 < 2139095040);#res := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~x, ~x), ~x); {50#false} is VALID [2020-07-17 22:05:09,334 INFO L280 TraceCheckUtils]: 4: Hoare triple {50#false} assume true; {50#false} is VALID [2020-07-17 22:05:09,335 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {50#false} {49#true} #126#return; {50#false} is VALID [2020-07-17 22:05:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:09,345 INFO L280 TraceCheckUtils]: 0: Hoare triple {49#true} ~x := #in~x;#res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {49#true} is VALID [2020-07-17 22:05:09,345 INFO L280 TraceCheckUtils]: 1: Hoare triple {49#true} assume true; {49#true} is VALID [2020-07-17 22:05:09,346 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {49#true} {50#false} #128#return; {50#false} is VALID [2020-07-17 22:05:09,348 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 [2020-07-17 22:05:09,348 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 [2020-07-17 22:05:09,348 INFO L280 TraceCheckUtils]: 2: Hoare triple {49#true} assume true; {49#true} is VALID [2020-07-17 22:05:09,349 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {49#true} {49#true} #130#return; {49#true} is VALID [2020-07-17 22:05:09,349 INFO L263 TraceCheckUtils]: 4: Hoare triple {49#true} call #t~ret7 := main(); {49#true} is VALID [2020-07-17 22:05:09,350 INFO L280 TraceCheckUtils]: 5: Hoare triple {49#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(~someUnaryFLOAToperation(1.0), 0.0); {49#true} is VALID [2020-07-17 22:05:09,352 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 [2020-07-17 22:05:09,352 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 [2020-07-17 22:05:09,354 INFO L280 TraceCheckUtils]: 8: Hoare triple {49#true} assume !true; {50#false} is VALID [2020-07-17 22:05:09,354 INFO L280 TraceCheckUtils]: 9: Hoare triple {50#false} ~hx~0 := ~bitwiseAnd(~ix~0, 2147483647); {50#false} is VALID [2020-07-17 22:05:09,354 INFO L280 TraceCheckUtils]: 10: Hoare triple {50#false} assume !(~hx~0 % 4294967296 < 2139095040);#res := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~x, ~x), ~x); {50#false} is VALID [2020-07-17 22:05:09,355 INFO L280 TraceCheckUtils]: 11: Hoare triple {50#false} assume true; {50#false} is VALID [2020-07-17 22:05:09,355 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {50#false} {49#true} #126#return; {50#false} is VALID [2020-07-17 22:05:09,356 INFO L280 TraceCheckUtils]: 13: Hoare triple {50#false} ~res~0 := #t~ret5;havoc #t~ret5; {50#false} is VALID [2020-07-17 22:05:09,356 INFO L263 TraceCheckUtils]: 14: Hoare triple {50#false} call #t~ret6 := isnan_float(~res~0); {49#true} is VALID [2020-07-17 22:05:09,356 INFO L280 TraceCheckUtils]: 15: Hoare triple {49#true} ~x := #in~x;#res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {49#true} is VALID [2020-07-17 22:05:09,357 INFO L280 TraceCheckUtils]: 16: Hoare triple {49#true} assume true; {49#true} is VALID [2020-07-17 22:05:09,357 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {49#true} {50#false} #128#return; {50#false} is VALID [2020-07-17 22:05:09,357 INFO L280 TraceCheckUtils]: 18: Hoare triple {50#false} assume -2147483648 <= #t~ret6 && #t~ret6 <= 2147483647; {50#false} is VALID [2020-07-17 22:05:09,358 INFO L280 TraceCheckUtils]: 19: Hoare triple {50#false} assume 0 == #t~ret6;havoc #t~ret6; {50#false} is VALID [2020-07-17 22:05:09,358 INFO L280 TraceCheckUtils]: 20: Hoare triple {50#false} assume !false; {50#false} is VALID [2020-07-17 22:05:09,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:05:09,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941558844] [2020-07-17 22:05:09,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:05:09,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 22:05:09,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73340453] [2020-07-17 22:05:09,370 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-07-17 22:05:09,372 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:05:09,376 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-17 22:05:09,417 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:05:09,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 22:05:09,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:05:09,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 22:05:09,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 22:05:09,426 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 4 states. [2020-07-17 22:05:09,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:09,941 INFO L93 Difference]: Finished difference Result 84 states and 118 transitions. [2020-07-17 22:05:09,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 22:05:09,942 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-07-17 22:05:09,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:05:09,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:05:09,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2020-07-17 22:05:09,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:05:09,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2020-07-17 22:05:09,966 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 118 transitions. [2020-07-17 22:05:10,130 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 118 edges. 118 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:05:10,144 INFO L225 Difference]: With dead ends: 84 [2020-07-17 22:05:10,144 INFO L226 Difference]: Without dead ends: 42 [2020-07-17 22:05:10,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 22:05:10,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-17 22:05:10,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-07-17 22:05:10,217 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:05:10,218 INFO L82 GeneralOperation]: Start isEquivalent. First operand 42 states. Second operand 42 states. [2020-07-17 22:05:10,219 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 42 states. [2020-07-17 22:05:10,219 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 42 states. [2020-07-17 22:05:10,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:10,224 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2020-07-17 22:05:10,224 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2020-07-17 22:05:10,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:05:10,225 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:05:10,225 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 42 states. [2020-07-17 22:05:10,226 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 42 states. [2020-07-17 22:05:10,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:10,231 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2020-07-17 22:05:10,231 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2020-07-17 22:05:10,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:05:10,232 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:05:10,232 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:05:10,232 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:05:10,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-07-17 22:05:10,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2020-07-17 22:05:10,237 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 52 transitions. Word has length 21 [2020-07-17 22:05:10,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:05:10,238 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 52 transitions. [2020-07-17 22:05:10,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 22:05:10,238 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2020-07-17 22:05:10,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-17 22:05:10,239 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:05:10,240 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:05:10,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:05:10,240 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:05:10,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:05:10,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1643831456, now seen corresponding path program 1 times [2020-07-17 22:05:10,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:05:10,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087020512] [2020-07-17 22:05:10,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:05:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:05:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:05:10,446 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 22:05:10,447 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 22:05:10,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:05:10,497 WARN L170 areAnnotationChecker]: isnan_floatENTRY has no Hoare annotation [2020-07-17 22:05:10,497 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-17 22:05:10,498 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:05:10,498 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:05:10,498 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-17 22:05:10,498 WARN L170 areAnnotationChecker]: __ieee754_sqrtfENTRY has no Hoare annotation [2020-07-17 22:05:10,498 WARN L170 areAnnotationChecker]: isnan_floatFINAL has no Hoare annotation [2020-07-17 22:05:10,498 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:05:10,498 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:05:10,499 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:05:10,499 WARN L170 areAnnotationChecker]: L93 has no Hoare annotation [2020-07-17 22:05:10,500 WARN L170 areAnnotationChecker]: L93 has no Hoare annotation [2020-07-17 22:05:10,500 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2020-07-17 22:05:10,500 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2020-07-17 22:05:10,500 WARN L170 areAnnotationChecker]: isnan_floatEXIT has no Hoare annotation [2020-07-17 22:05:10,500 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:05:10,500 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:05:10,500 WARN L170 areAnnotationChecker]: L93-1 has no Hoare annotation [2020-07-17 22:05:10,501 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2020-07-17 22:05:10,501 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2020-07-17 22:05:10,501 WARN L170 areAnnotationChecker]: L22-3 has no Hoare annotation [2020-07-17 22:05:10,501 WARN L170 areAnnotationChecker]: L96-1 has no Hoare annotation [2020-07-17 22:05:10,501 WARN L170 areAnnotationChecker]: L96 has no Hoare annotation [2020-07-17 22:05:10,501 WARN L170 areAnnotationChecker]: L96 has no Hoare annotation [2020-07-17 22:05:10,501 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-17 22:05:10,502 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-17 22:05:10,502 WARN L170 areAnnotationChecker]: L96-2 has no Hoare annotation [2020-07-17 22:05:10,502 WARN L170 areAnnotationChecker]: L96-2 has no Hoare annotation [2020-07-17 22:05:10,502 WARN L170 areAnnotationChecker]: __ieee754_sqrtfFINAL has no Hoare annotation [2020-07-17 22:05:10,502 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-17 22:05:10,502 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-17 22:05:10,503 WARN L170 areAnnotationChecker]: L97 has no Hoare annotation [2020-07-17 22:05:10,503 WARN L170 areAnnotationChecker]: L97 has no Hoare annotation [2020-07-17 22:05:10,504 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:05:10,504 WARN L170 areAnnotationChecker]: __ieee754_sqrtfEXIT has no Hoare annotation [2020-07-17 22:05:10,504 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-17 22:05:10,504 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-17 22:05:10,504 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:05:10,504 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-17 22:05:10,504 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-17 22:05:10,504 WARN L170 areAnnotationChecker]: L39-3 has no Hoare annotation [2020-07-17 22:05:10,505 WARN L170 areAnnotationChecker]: L39-3 has no Hoare annotation [2020-07-17 22:05:10,505 WARN L170 areAnnotationChecker]: L39-3 has no Hoare annotation [2020-07-17 22:05:10,505 WARN L170 areAnnotationChecker]: L38-2 has no Hoare annotation [2020-07-17 22:05:10,505 WARN L170 areAnnotationChecker]: L39-4 has no Hoare annotation [2020-07-17 22:05:10,505 WARN L170 areAnnotationChecker]: L39-2 has no Hoare annotation [2020-07-17 22:05:10,505 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2020-07-17 22:05:10,505 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2020-07-17 22:05:10,506 WARN L170 areAnnotationChecker]: L45-2 has no Hoare annotation [2020-07-17 22:05:10,506 WARN L170 areAnnotationChecker]: L53-2 has no Hoare annotation [2020-07-17 22:05:10,506 WARN L170 areAnnotationChecker]: L53-2 has no Hoare annotation [2020-07-17 22:05:10,506 WARN L170 areAnnotationChecker]: L53-2 has no Hoare annotation [2020-07-17 22:05:10,506 WARN L170 areAnnotationChecker]: L53-3 has no Hoare annotation [2020-07-17 22:05:10,506 WARN L170 areAnnotationChecker]: L53-3 has no Hoare annotation [2020-07-17 22:05:10,506 WARN L170 areAnnotationChecker]: L55 has no Hoare annotation [2020-07-17 22:05:10,506 WARN L170 areAnnotationChecker]: L55 has no Hoare annotation [2020-07-17 22:05:10,508 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-17 22:05:10,508 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-17 22:05:10,508 WARN L170 areAnnotationChecker]: L64 has no Hoare annotation [2020-07-17 22:05:10,508 WARN L170 areAnnotationChecker]: L55-2 has no Hoare annotation [2020-07-17 22:05:10,508 WARN L170 areAnnotationChecker]: L68 has no Hoare annotation [2020-07-17 22:05:10,509 WARN L170 areAnnotationChecker]: L68 has no Hoare annotation [2020-07-17 22:05:10,509 WARN L170 areAnnotationChecker]: L76-2 has no Hoare annotation [2020-07-17 22:05:10,509 WARN L170 areAnnotationChecker]: L76-2 has no Hoare annotation [2020-07-17 22:05:10,509 WARN L170 areAnnotationChecker]: L76-1 has no Hoare annotation [2020-07-17 22:05:10,509 WARN L170 areAnnotationChecker]: L76-1 has no Hoare annotation [2020-07-17 22:05:10,509 WARN L170 areAnnotationChecker]: L76-3 has no Hoare annotation [2020-07-17 22:05:10,510 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-17 22:05:10,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:05:10 BoogieIcfgContainer [2020-07-17 22:05:10,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:05:10,522 INFO L168 Benchmark]: Toolchain (without parser) took 2638.70 ms. Allocated memory was 146.3 MB in the beginning and 235.9 MB in the end (delta: 89.7 MB). Free memory was 103.8 MB in the beginning and 117.4 MB in the end (delta: -13.7 MB). Peak memory consumption was 76.0 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:10,523 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 22:05:10,525 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.04 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 103.3 MB in the beginning and 182.3 MB in the end (delta: -78.9 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:10,526 INFO L168 Benchmark]: Boogie Preprocessor took 49.42 ms. Allocated memory is still 203.4 MB. Free memory was 182.3 MB in the beginning and 179.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:10,526 INFO L168 Benchmark]: RCFGBuilder took 589.37 ms. Allocated memory is still 203.4 MB. Free memory was 179.2 MB in the beginning and 146.4 MB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:10,528 INFO L168 Benchmark]: TraceAbstraction took 1595.63 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 146.4 MB in the beginning and 118.8 MB in the end (delta: 27.5 MB). Peak memory consumption was 60.0 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:10,541 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 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 398.04 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 103.3 MB in the beginning and 182.3 MB in the end (delta: -78.9 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.42 ms. Allocated memory is still 203.4 MB. Free memory was 182.3 MB in the beginning and 179.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 589.37 ms. Allocated memory is still 203.4 MB. Free memory was 179.2 MB in the beginning and 146.4 MB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1595.63 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 146.4 MB in the beginning and 118.8 MB in the end (delta: 27.5 MB). Peak memory consumption was 60.0 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: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, 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, 0.1s 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, 0.1s SatisfiabilityAnalysisTime, 0.2s 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...