/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/double_req_bl_1251b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 21:57:38,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 21:57:38,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 21:57:38,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 21:57:38,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 21:57:38,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 21:57:38,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 21:57:38,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 21:57:38,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 21:57:38,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 21:57:38,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 21:57:38,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 21:57:38,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 21:57:38,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 21:57:38,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 21:57:38,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 21:57:38,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 21:57:38,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 21:57:38,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 21:57:38,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 21:57:38,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 21:57:38,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 21:57:38,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 21:57:38,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 21:57:38,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-06 21:57:38,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 21:57:38,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 21:57:38,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 21:57:38,439 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 [2020-11-06 21:57:38,469 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 21:57:38,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 21:57:38,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 21:57:38,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 21:57:38,472 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 21:57:38,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 21:57:38,472 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 21:57:38,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 21:57:38,473 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 21:57:38,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 21:57:38,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 21:57:38,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 21:57:38,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 21:57:38,474 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 21:57:38,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 21:57:38,474 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 21:57:38,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 21:57:38,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 21:57:38,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 21:57:38,475 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 21:57:38,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 21:57:38,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 21:57:38,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 21:57:38,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 21:57:38,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 21:57:38,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 21:57:38,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 21:57:38,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 21:57:38,477 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 21:57:38,477 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 21:57:38,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 21:57:38,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 21:57:38,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 21:57:38,986 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 21:57:38,987 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 21:57:38,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-11-06 21:57:39,080 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7020e5ae/045cfc2d8df24e92b1bb39c5b02f3db7/FLAGbef87e520 [2020-11-06 21:57:39,725 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 21:57:39,726 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-11-06 21:57:39,735 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7020e5ae/045cfc2d8df24e92b1bb39c5b02f3db7/FLAGbef87e520 [2020-11-06 21:57:40,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7020e5ae/045cfc2d8df24e92b1bb39c5b02f3db7 [2020-11-06 21:57:40,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 21:57:40,096 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 21:57:40,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 21:57:40,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 21:57:40,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 21:57:40,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:57:40" (1/1) ... [2020-11-06 21:57:40,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@769898a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:40, skipping insertion in model container [2020-11-06 21:57:40,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:57:40" (1/1) ... [2020-11-06 21:57:40,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 21:57:40,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 21:57:40,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 21:57:40,330 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 21:57:40,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 21:57:40,377 INFO L208 MainTranslator]: Completed translation [2020-11-06 21:57:40,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:40 WrapperNode [2020-11-06 21:57:40,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 21:57:40,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 21:57:40,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 21:57:40,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 21:57:40,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:40" (1/1) ... [2020-11-06 21:57:40,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:40" (1/1) ... [2020-11-06 21:57:40,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:40" (1/1) ... [2020-11-06 21:57:40,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:40" (1/1) ... [2020-11-06 21:57:40,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:40" (1/1) ... [2020-11-06 21:57:40,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:40" (1/1) ... [2020-11-06 21:57:40,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:40" (1/1) ... [2020-11-06 21:57:40,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 21:57:40,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 21:57:40,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 21:57:40,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 21:57:40,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:40" (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 [2020-11-06 21:57:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 21:57:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 21:57:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 21:57:40,503 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-11-06 21:57:40,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-11-06 21:57:40,503 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2020-11-06 21:57:40,503 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 21:57:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 21:57:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 21:57:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 21:57:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 21:57:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-11-06 21:57:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-11-06 21:57:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-11-06 21:57:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-06 21:57:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 21:57:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 21:57:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2020-11-06 21:57:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 21:57:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 21:57:40,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 21:57:40,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 21:57:40,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 21:57:40,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-06 21:57:40,945 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 21:57:40,945 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-11-06 21:57:40,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:57:40 BoogieIcfgContainer [2020-11-06 21:57:40,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 21:57:40,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 21:57:40,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 21:57:40,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 21:57:40,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:57:40" (1/3) ... [2020-11-06 21:57:40,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b0b3897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:57:40, skipping insertion in model container [2020-11-06 21:57:40,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:40" (2/3) ... [2020-11-06 21:57:40,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b0b3897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:57:40, skipping insertion in model container [2020-11-06 21:57:40,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:57:40" (3/3) ... [2020-11-06 21:57:40,957 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1251b.c [2020-11-06 21:57:40,974 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 21:57:40,980 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 21:57:40,993 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 21:57:41,023 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 21:57:41,023 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 21:57:41,023 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 21:57:41,023 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 21:57:41,023 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 21:57:41,023 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 21:57:41,024 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 21:57:41,024 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 21:57:41,041 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-11-06 21:57:41,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-06 21:57:41,047 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:57:41,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 21:57:41,048 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 21:57:41,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:57:41,055 INFO L82 PathProgramCache]: Analyzing trace with hash 976255988, now seen corresponding path program 1 times [2020-11-06 21:57:41,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:57:41,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631693135] [2020-11-06 21:57:41,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:57:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:57:41,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 21:57:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:57:41,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 21:57:41,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:57:41,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 21:57:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:57:41,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 21:57:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:57:41,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 21:57:41,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631693135] [2020-11-06 21:57:41,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 21:57:41,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 21:57:41,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201120971] [2020-11-06 21:57:41,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 21:57:41,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 21:57:41,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 21:57:41,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-06 21:57:41,518 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 4 states. [2020-11-06 21:57:41,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 21:57:41,823 INFO L93 Difference]: Finished difference Result 77 states and 100 transitions. [2020-11-06 21:57:41,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 21:57:41,826 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-11-06 21:57:41,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 21:57:41,856 INFO L225 Difference]: With dead ends: 77 [2020-11-06 21:57:41,856 INFO L226 Difference]: Without dead ends: 38 [2020-11-06 21:57:41,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-06 21:57:41,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-06 21:57:41,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-06 21:57:41,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-06 21:57:41,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2020-11-06 21:57:41,936 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 28 [2020-11-06 21:57:41,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 21:57:41,938 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2020-11-06 21:57:41,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 21:57:41,939 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2020-11-06 21:57:41,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-06 21:57:41,941 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:57:41,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 21:57:41,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 21:57:41,942 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 21:57:41,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:57:41,945 INFO L82 PathProgramCache]: Analyzing trace with hash 750737641, now seen corresponding path program 1 times [2020-11-06 21:57:41,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:57:41,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685269420] [2020-11-06 21:57:41,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:57:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:57:42,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 21:57:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:57:42,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 21:57:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:57:42,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 21:57:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:57:42,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 21:57:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:57:42,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 21:57:42,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685269420] [2020-11-06 21:57:42,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 21:57:42,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-06 21:57:42,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138454225] [2020-11-06 21:57:42,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-06 21:57:42,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 21:57:42,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-06 21:57:42,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-06 21:57:42,281 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 6 states. [2020-11-06 21:57:42,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 21:57:42,527 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2020-11-06 21:57:42,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 21:57:42,528 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-11-06 21:57:42,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 21:57:42,531 INFO L225 Difference]: With dead ends: 49 [2020-11-06 21:57:42,532 INFO L226 Difference]: Without dead ends: 42 [2020-11-06 21:57:42,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-06 21:57:42,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-06 21:57:42,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-11-06 21:57:42,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-06 21:57:42,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2020-11-06 21:57:42,546 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 29 [2020-11-06 21:57:42,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 21:57:42,547 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2020-11-06 21:57:42,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-06 21:57:42,547 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2020-11-06 21:57:42,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-06 21:57:42,549 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:57:42,549 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 21:57:42,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 21:57:42,549 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 21:57:42,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:57:42,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1341817893, now seen corresponding path program 1 times [2020-11-06 21:57:42,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:57:42,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650469323] [2020-11-06 21:57:42,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:57:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:57:42,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 21:57:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:57:42,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 21:57:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:57:42,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-06 21:57:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:57:42,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 21:57:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:57:42,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 21:57:42,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650469323] [2020-11-06 21:57:42,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 21:57:42,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-06 21:57:42,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026514755] [2020-11-06 21:57:42,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-06 21:57:42,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 21:57:42,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-06 21:57:42,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-06 21:57:42,741 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 6 states. [2020-11-06 21:57:42,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 21:57:42,898 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2020-11-06 21:57:42,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 21:57:42,899 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-11-06 21:57:42,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 21:57:42,901 INFO L225 Difference]: With dead ends: 53 [2020-11-06 21:57:42,901 INFO L226 Difference]: Without dead ends: 46 [2020-11-06 21:57:42,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-06 21:57:42,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-06 21:57:42,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2020-11-06 21:57:42,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-06 21:57:42,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2020-11-06 21:57:42,912 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 32 [2020-11-06 21:57:42,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 21:57:42,912 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2020-11-06 21:57:42,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-06 21:57:42,912 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2020-11-06 21:57:42,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-06 21:57:42,914 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:57:42,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 21:57:42,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-06 21:57:42,914 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 21:57:42,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:57:42,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1156198044, now seen corresponding path program 1 times [2020-11-06 21:57:42,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:57:42,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351833833] [2020-11-06 21:57:42,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:57:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 21:57:42,943 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 21:57:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 21:57:42,983 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 21:57:43,033 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-06 21:57:43,033 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 21:57:43,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-06 21:57:43,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:57:43 BoogieIcfgContainer [2020-11-06 21:57:43,074 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 21:57:43,077 INFO L168 Benchmark]: Toolchain (without parser) took 2985.26 ms. Allocated memory is still 155.2 MB. Free memory was 131.0 MB in the beginning and 106.8 MB in the end (delta: 24.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-11-06 21:57:43,078 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory was 100.9 MB in the beginning and 100.8 MB in the end (delta: 68.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 21:57:43,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.65 ms. Allocated memory is still 155.2 MB. Free memory was 130.3 MB in the beginning and 120.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-06 21:57:43,079 INFO L168 Benchmark]: Boogie Preprocessor took 45.56 ms. Allocated memory is still 155.2 MB. Free memory was 120.1 MB in the beginning and 118.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-06 21:57:43,080 INFO L168 Benchmark]: RCFGBuilder took 522.30 ms. Allocated memory is still 155.2 MB. Free memory was 118.4 MB in the beginning and 133.8 MB in the end (delta: -15.4 MB). Peak memory consumption was 16.2 MB. Max. memory is 8.0 GB. [2020-11-06 21:57:43,081 INFO L168 Benchmark]: TraceAbstraction took 2124.49 ms. Allocated memory is still 155.2 MB. Free memory was 133.3 MB in the beginning and 106.8 MB in the end (delta: 26.5 MB). Peak memory consumption was 26.9 MB. Max. memory is 8.0 GB. [2020-11-06 21:57:43,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory was 100.9 MB in the beginning and 100.8 MB in the end (delta: 68.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 279.65 ms. Allocated memory is still 155.2 MB. Free memory was 130.3 MB in the beginning and 120.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 45.56 ms. Allocated memory is still 155.2 MB. Free memory was 120.1 MB in the beginning and 118.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 522.30 ms. Allocated memory is still 155.2 MB. Free memory was 118.4 MB in the beginning and 133.8 MB in the end (delta: -15.4 MB). Peak memory consumption was 16.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2124.49 ms. Allocated memory is still 155.2 MB. Free memory was 133.3 MB in the beginning and 106.8 MB in the end (delta: 26.5 MB). Peak memory consumption was 26.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 79, overapproximation of someBinaryArithmeticDOUBLEoperation at line 67. Possible FailurePath: [L66] double x = __VERIFIER_nondet_double(); [L67] double y = 0.0 / 0.0; VAL [x=4294967302] [L74] CALL, EXPR isnan_double(x) VAL [\old(x)=4294967302] [L18] return x != x; VAL [\old(x)=4294967302, \result=0, x=4294967302] [L74] RET, EXPR isnan_double(x) VAL [isnan_double(x)=0, x=4294967302] [L74] COND TRUE !isnan_double(x) [L76] CALL, EXPR fmax_double(x, y) VAL [\old(x)=4294967302, \old(y)=4294967304] [L57] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4294967302] [L29] __uint32_t msw, lsw; VAL [\old(x)=4294967302, x=4294967302] [L32] ieee_double_shape_type ew_u; [L33] ew_u.value = (x) [L34] EXPR ew_u.parts.msw [L34] (msw) = ew_u.parts.msw [L35] EXPR ew_u.parts.lsw [L35] (lsw) = ew_u.parts.lsw [L38-L39] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=4294967302, lsw=4294967297, msw=4293918721, x=4294967302] [L41-L42] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=4294967302, lsw=4294967297, msw=4293918721, x=4294967302] [L44-L45] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=4294967302, lsw=4294967297, msw=4293918721, x=4294967302] [L48-L49] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L52] return 0; VAL [\old(x)=4294967302, \result=0, lsw=4294967297, msw=4293918721, x=4294967302] [L57] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4294967302, \old(y)=4294967304, __fpclassify_double(x)=0, x=4294967302, y=4294967304] [L57] COND TRUE __fpclassify_double(x) == 0 [L58] return y; VAL [\old(x)=4294967302, \old(y)=4294967304, \result=4294967304, x=4294967302, y=4294967304] [L76] RET, EXPR fmax_double(x, y) VAL [fmax_double(x, y)=4294967304, x=4294967302, y=4294967304] [L76] double res = fmax_double(x, y); [L79] COND TRUE res != x VAL [res=4294967304, x=4294967302, y=4294967304] [L80] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1251b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 128 SDtfs, 54 SDslu, 198 SDs, 0 SdLazy, 172 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 7590 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...