/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1250.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:25:03,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:25:03,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:25:03,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:25:03,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:25:03,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:25:03,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:25:03,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:25:03,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:25:03,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:25:03,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:25:03,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:25:03,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:25:03,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:25:03,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:25:03,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:25:03,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:25:03,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:25:03,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:25:03,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:25:03,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:25:03,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:25:03,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:25:03,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:25:03,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 20:25:03,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:25:03,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:25:03,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:25:03,519 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:25:03,538 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:25:03,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:25:03,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:25:03,543 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:25:03,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:25:03,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:25:03,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:25:03,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:25:03,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:25:03,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:25:03,546 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:25:03,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:25:03,546 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:25:03,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:25:03,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:25:03,547 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:25:03,547 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:25:03,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:25:03,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:25:03,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:25:03,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:25:03,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:25:03,549 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:25:03,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:25:03,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:25:03,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:25:03,989 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:25:03,990 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:25:03,991 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1250.c [2020-10-23 20:25:04,082 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c56a97ca5/2fe559bd47c742359437c3e4e7d95e64/FLAG503587183 [2020-10-23 20:25:04,821 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:25:04,822 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1250.c [2020-10-23 20:25:04,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c56a97ca5/2fe559bd47c742359437c3e4e7d95e64/FLAG503587183 [2020-10-23 20:25:05,153 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c56a97ca5/2fe559bd47c742359437c3e4e7d95e64 [2020-10-23 20:25:05,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:25:05,170 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:25:05,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:25:05,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:25:05,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:25:05,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:25:05" (1/1) ... [2020-10-23 20:25:05,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a5318f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:05, skipping insertion in model container [2020-10-23 20:25:05,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:25:05" (1/1) ... [2020-10-23 20:25:05,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:25:05,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:25:05,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:25:05,418 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:25:05,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:25:05,505 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:25:05,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:05 WrapperNode [2020-10-23 20:25:05,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:25:05,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:25:05,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:25:05,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:25:05,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:05" (1/1) ... [2020-10-23 20:25:05,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:05" (1/1) ... [2020-10-23 20:25:05,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:05" (1/1) ... [2020-10-23 20:25:05,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:05" (1/1) ... [2020-10-23 20:25:05,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:05" (1/1) ... [2020-10-23 20:25:05,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:05" (1/1) ... [2020-10-23 20:25:05,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:05" (1/1) ... [2020-10-23 20:25:05,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:25:05,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:25:05,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:25:05,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:25:05,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:05" (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 [2020-10-23 20:25:05,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:25:05,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:25:05,714 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:25:05,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-23 20:25:05,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-10-23 20:25:05,715 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2020-10-23 20:25:05,715 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:25:05,716 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:25:05,716 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:25:05,716 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:25:05,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:25:05,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-23 20:25:05,718 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-23 20:25:05,718 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-10-23 20:25:05,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-23 20:25:05,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:25:05,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:25:05,720 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2020-10-23 20:25:05,720 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:25:05,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:25:05,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:25:05,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:25:05,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-23 20:25:05,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:25:06,238 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:25:06,238 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-23 20:25:06,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:25:06 BoogieIcfgContainer [2020-10-23 20:25:06,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:25:06,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:25:06,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:25:06,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:25:06,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:25:05" (1/3) ... [2020-10-23 20:25:06,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67408c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:25:06, skipping insertion in model container [2020-10-23 20:25:06,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:05" (2/3) ... [2020-10-23 20:25:06,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67408c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:25:06, skipping insertion in model container [2020-10-23 20:25:06,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:25:06" (3/3) ... [2020-10-23 20:25:06,255 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1250.c [2020-10-23 20:25:06,269 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:25:06,276 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:25:06,291 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:25:06,336 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:25:06,336 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:25:06,336 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:25:06,337 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:25:06,337 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:25:06,337 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:25:06,338 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:25:06,338 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:25:06,368 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-10-23 20:25:06,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-23 20:25:06,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:25:06,401 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:25:06,401 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:25:06,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:25:06,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1511873638, now seen corresponding path program 1 times [2020-10-23 20:25:06,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:25:06,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894282346] [2020-10-23 20:25:06,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:25:06,523 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:25:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:06,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:25:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:06,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-23 20:25:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:06,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:25:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:06,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-23 20:25:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:06,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:25:06,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894282346] [2020-10-23 20:25:06,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:25:06,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:25:06,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51492097] [2020-10-23 20:25:06,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:25:06,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:25:06,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:25:06,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:25:06,911 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 4 states. [2020-10-23 20:25:07,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:25:07,371 INFO L93 Difference]: Finished difference Result 153 states and 175 transitions. [2020-10-23 20:25:07,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 20:25:07,374 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-10-23 20:25:07,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:25:07,386 INFO L225 Difference]: With dead ends: 153 [2020-10-23 20:25:07,386 INFO L226 Difference]: Without dead ends: 78 [2020-10-23 20:25:07,391 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 [2020-10-23 20:25:07,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-23 20:25:07,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-10-23 20:25:07,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-23 20:25:07,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 85 transitions. [2020-10-23 20:25:07,465 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 85 transitions. Word has length 44 [2020-10-23 20:25:07,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:25:07,466 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 85 transitions. [2020-10-23 20:25:07,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:25:07,466 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 85 transitions. [2020-10-23 20:25:07,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-23 20:25:07,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:25:07,470 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, 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] [2020-10-23 20:25:07,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:25:07,471 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:25:07,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:25:07,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1366811728, now seen corresponding path program 1 times [2020-10-23 20:25:07,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:25:07,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [551533489] [2020-10-23 20:25:07,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:25:07,476 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:25:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:07,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:25:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:07,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-23 20:25:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:07,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:25:07,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:07,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-23 20:25:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:07,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:25:07,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [551533489] [2020-10-23 20:25:07,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:25:07,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:25:07,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280074168] [2020-10-23 20:25:07,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:25:07,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:25:07,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:25:07,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:25:07,811 INFO L87 Difference]: Start difference. First operand 78 states and 85 transitions. Second operand 6 states. [2020-10-23 20:25:08,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:25:08,214 INFO L93 Difference]: Finished difference Result 100 states and 108 transitions. [2020-10-23 20:25:08,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 20:25:08,215 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-10-23 20:25:08,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:25:08,219 INFO L225 Difference]: With dead ends: 100 [2020-10-23 20:25:08,219 INFO L226 Difference]: Without dead ends: 83 [2020-10-23 20:25:08,221 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 [2020-10-23 20:25:08,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-23 20:25:08,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2020-10-23 20:25:08,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-23 20:25:08,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2020-10-23 20:25:08,239 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 58 [2020-10-23 20:25:08,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:25:08,240 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2020-10-23 20:25:08,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:25:08,240 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2020-10-23 20:25:08,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-23 20:25:08,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:25:08,243 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, 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] [2020-10-23 20:25:08,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:25:08,243 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:25:08,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:25:08,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1266244320, now seen corresponding path program 1 times [2020-10-23 20:25:08,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:25:08,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047982572] [2020-10-23 20:25:08,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:25:08,248 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:25:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:08,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:25:08,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:08,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-23 20:25:08,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:08,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:25:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:08,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-23 20:25:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:08,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:25:08,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047982572] [2020-10-23 20:25:08,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:25:08,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:25:08,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383431184] [2020-10-23 20:25:08,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:25:08,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:25:08,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:25:08,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:25:08,513 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 6 states. [2020-10-23 20:25:09,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:25:09,048 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2020-10-23 20:25:09,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 20:25:09,049 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-10-23 20:25:09,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:25:09,051 INFO L225 Difference]: With dead ends: 104 [2020-10-23 20:25:09,051 INFO L226 Difference]: Without dead ends: 87 [2020-10-23 20:25:09,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:25:09,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-23 20:25:09,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 82. [2020-10-23 20:25:09,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-23 20:25:09,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2020-10-23 20:25:09,067 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 61 [2020-10-23 20:25:09,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:25:09,068 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2020-10-23 20:25:09,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:25:09,068 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2020-10-23 20:25:09,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-23 20:25:09,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:25:09,070 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, 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] [2020-10-23 20:25:09,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:25:09,071 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:25:09,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:25:09,071 INFO L82 PathProgramCache]: Analyzing trace with hash -624687776, now seen corresponding path program 1 times [2020-10-23 20:25:09,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:25:09,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056891048] [2020-10-23 20:25:09,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:25:09,075 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:25:09,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:25:09,104 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:25:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:25:09,154 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:25:09,209 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:25:09,209 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:25:09,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:25:09,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:25:09 BoogieIcfgContainer [2020-10-23 20:25:09,237 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:25:09,242 INFO L168 Benchmark]: Toolchain (without parser) took 4076.17 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 128.0 MB in the beginning and 119.1 MB in the end (delta: 8.9 MB). Peak memory consumption was 44.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:09,243 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 125.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:25:09,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.00 ms. Allocated memory is still 151.0 MB. Free memory was 127.4 MB in the beginning and 116.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:09,247 INFO L168 Benchmark]: Boogie Preprocessor took 96.09 ms. Allocated memory is still 151.0 MB. Free memory was 116.6 MB in the beginning and 115.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:09,249 INFO L168 Benchmark]: RCFGBuilder took 631.32 ms. Allocated memory is still 151.0 MB. Free memory was 114.9 MB in the beginning and 125.7 MB in the end (delta: -10.8 MB). Peak memory consumption was 17.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:09,252 INFO L168 Benchmark]: TraceAbstraction took 2994.55 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 125.2 MB in the beginning and 119.1 MB in the end (delta: 6.1 MB). Peak memory consumption was 40.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:09,262 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 125.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 331.00 ms. Allocated memory is still 151.0 MB. Free memory was 127.4 MB in the beginning and 116.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 96.09 ms. Allocated memory is still 151.0 MB. Free memory was 116.6 MB in the beginning and 115.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 631.32 ms. Allocated memory is still 151.0 MB. Free memory was 114.9 MB in the beginning and 125.7 MB in the end (delta: -10.8 MB). Peak memory consumption was 17.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2994.55 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 125.2 MB in the beginning and 119.1 MB in the end (delta: 6.1 MB). Peak memory consumption was 40.7 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 18, overapproximation of someBinaryArithmeticDOUBLEoperation at line 70. Possible FailurePath: [L69] double x = 0.0 / 0.0; [L70] double y = 0.0 / 0.0; [L71] CALL, EXPR fmax_double(x, y) [L57] CALL, EXPR __fpclassify_double(x) [L29] __uint32_t msw, lsw; [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)) [L41-L42] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L44-L45] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L48-L49] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L52] return 0; [L57] RET, EXPR __fpclassify_double(x) [L57] COND TRUE __fpclassify_double(x) == 0 [L58] return y; [L71] RET, EXPR fmax_double(x, y) [L71] double res = fmax_double(x, y); [L73] CALL, EXPR isnan_double(res) [L18] return x != x; [L73] RET, EXPR isnan_double(res) [L73] COND TRUE !isnan_double(res) [L74] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1250.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 257 SDtfs, 71 SDslu, 433 SDs, 0 SdLazy, 344 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred 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, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...