/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 04:45:44,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 04:45:44,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 04:45:44,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 04:45:44,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 04:45:44,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 04:45:44,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 04:45:44,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 04:45:44,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 04:45:44,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 04:45:44,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 04:45:44,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 04:45:44,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 04:45:44,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 04:45:44,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 04:45:44,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 04:45:44,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 04:45:44,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 04:45:44,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 04:45:44,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 04:45:44,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 04:45:44,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 04:45:44,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 04:45:44,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 04:45:44,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 04:45:44,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 04:45:44,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 04:45:44,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 04:45:44,834 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 04:45:44,856 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 04:45:44,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 04:45:44,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 04:45:44,861 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 04:45:44,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 04:45:44,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 04:45:44,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 04:45:44,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 04:45:44,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 04:45:44,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 04:45:44,864 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 04:45:44,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 04:45:44,864 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 04:45:44,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 04:45:44,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 04:45:44,865 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 04:45:44,865 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 04:45:44,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 04:45:44,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 04:45:44,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 04:45:44,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 04:45:44,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 04:45:44,866 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 04:45:45,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 04:45:45,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 04:45:45,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 04:45:45,311 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 04:45:45,314 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 04:45:45,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-11-07 04:45:45,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9cea78ff/b79107f5782c43c1aa2e8b99779978ec/FLAG81952070b [2020-11-07 04:45:46,118 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 04:45:46,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-11-07 04:45:46,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9cea78ff/b79107f5782c43c1aa2e8b99779978ec/FLAG81952070b [2020-11-07 04:45:46,448 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9cea78ff/b79107f5782c43c1aa2e8b99779978ec [2020-11-07 04:45:46,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 04:45:46,461 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 04:45:46,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 04:45:46,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 04:45:46,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 04:45:46,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:45:46" (1/1) ... [2020-11-07 04:45:46,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34abccad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:46, skipping insertion in model container [2020-11-07 04:45:46,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:45:46" (1/1) ... [2020-11-07 04:45:46,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 04:45:46,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 04:45:46,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:45:46,803 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 04:45:46,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:45:46,889 INFO L208 MainTranslator]: Completed translation [2020-11-07 04:45:46,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:46 WrapperNode [2020-11-07 04:45:46,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 04:45:46,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 04:45:46,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 04:45:46,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 04:45:46,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:46" (1/1) ... [2020-11-07 04:45:46,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:46" (1/1) ... [2020-11-07 04:45:46,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:46" (1/1) ... [2020-11-07 04:45:46,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:46" (1/1) ... [2020-11-07 04:45:46,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:46" (1/1) ... [2020-11-07 04:45:46,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:46" (1/1) ... [2020-11-07 04:45:46,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:46" (1/1) ... [2020-11-07 04:45:46,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 04:45:46,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 04:45:46,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 04:45:46,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 04:45:46,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:46" (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 [2020-11-07 04:45:47,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 04:45:47,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 04:45:47,100 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 04:45:47,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-11-07 04:45:47,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-11-07 04:45:47,101 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2020-11-07 04:45:47,101 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 04:45:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 04:45:47,102 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 04:45:47,102 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 04:45:47,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 04:45:47,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-11-07 04:45:47,102 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-11-07 04:45:47,103 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-11-07 04:45:47,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-07 04:45:47,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 04:45:47,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 04:45:47,104 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2020-11-07 04:45:47,104 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 04:45:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 04:45:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 04:45:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 04:45:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 04:45:47,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-07 04:45:47,756 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 04:45:47,757 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-11-07 04:45:47,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:45:47 BoogieIcfgContainer [2020-11-07 04:45:47,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 04:45:47,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 04:45:47,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 04:45:47,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 04:45:47,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:45:46" (1/3) ... [2020-11-07 04:45:47,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e7e7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:45:47, skipping insertion in model container [2020-11-07 04:45:47,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:46" (2/3) ... [2020-11-07 04:45:47,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e7e7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:45:47, skipping insertion in model container [2020-11-07 04:45:47,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:45:47" (3/3) ... [2020-11-07 04:45:47,768 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1251b.c [2020-11-07 04:45:47,784 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 04:45:47,788 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 04:45:47,805 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 04:45:47,829 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 04:45:47,829 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 04:45:47,829 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 04:45:47,829 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 04:45:47,830 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 04:45:47,830 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 04:45:47,830 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 04:45:47,830 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 04:45:47,847 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-11-07 04:45:47,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-07 04:45:47,859 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:45:47,860 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] [2020-11-07 04:45:47,860 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:45:47,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:45:47,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1864280971, now seen corresponding path program 1 times [2020-11-07 04:45:47,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:45:47,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [852127210] [2020-11-07 04:45:47,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:45:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:48,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:45:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:48,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-07 04:45:48,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:48,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-07 04:45:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:48,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:45:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:48,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:45:48,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [852127210] [2020-11-07 04:45:48,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:45:48,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 04:45:48,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136154400] [2020-11-07 04:45:48,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 04:45:48,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:45:48,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 04:45:48,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 04:45:48,248 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 4 states. [2020-11-07 04:45:48,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:45:48,593 INFO L93 Difference]: Finished difference Result 150 states and 173 transitions. [2020-11-07 04:45:48,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-07 04:45:48,595 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-11-07 04:45:48,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:45:48,632 INFO L225 Difference]: With dead ends: 150 [2020-11-07 04:45:48,633 INFO L226 Difference]: Without dead ends: 80 [2020-11-07 04:45:48,637 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 [2020-11-07 04:45:48,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-11-07 04:45:48,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-11-07 04:45:48,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-11-07 04:45:48,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2020-11-07 04:45:48,701 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 46 [2020-11-07 04:45:48,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:45:48,702 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2020-11-07 04:45:48,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 04:45:48,702 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2020-11-07 04:45:48,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-11-07 04:45:48,706 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:45:48,706 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] [2020-11-07 04:45:48,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 04:45:48,707 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:45:48,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:45:48,708 INFO L82 PathProgramCache]: Analyzing trace with hash -751884555, now seen corresponding path program 1 times [2020-11-07 04:45:48,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:45:48,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891386029] [2020-11-07 04:45:48,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:45:48,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:48,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:45:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:48,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-07 04:45:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:48,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-07 04:45:48,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:48,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:45:48,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:49,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:45:49,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891386029] [2020-11-07 04:45:49,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:45:49,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 04:45:49,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917636100] [2020-11-07 04:45:49,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 04:45:49,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:45:49,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 04:45:49,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 04:45:49,032 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 6 states. [2020-11-07 04:45:49,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:45:49,325 INFO L93 Difference]: Finished difference Result 95 states and 103 transitions. [2020-11-07 04:45:49,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 04:45:49,325 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-11-07 04:45:49,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:45:49,330 INFO L225 Difference]: With dead ends: 95 [2020-11-07 04:45:49,330 INFO L226 Difference]: Without dead ends: 85 [2020-11-07 04:45:49,331 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 [2020-11-07 04:45:49,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-11-07 04:45:49,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2020-11-07 04:45:49,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-07 04:45:49,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2020-11-07 04:45:49,349 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 60 [2020-11-07 04:45:49,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:45:49,350 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2020-11-07 04:45:49,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 04:45:49,350 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2020-11-07 04:45:49,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-11-07 04:45:49,353 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:45:49,353 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, 1, 1] [2020-11-07 04:45:49,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 04:45:49,354 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:45:49,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:45:49,354 INFO L82 PathProgramCache]: Analyzing trace with hash 555272722, now seen corresponding path program 1 times [2020-11-07 04:45:49,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:45:49,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [703962618] [2020-11-07 04:45:49,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:45:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:49,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:45:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:49,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-07 04:45:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:49,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-07 04:45:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:49,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:45:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:49,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:45:49,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [703962618] [2020-11-07 04:45:49,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:45:49,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 04:45:49,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816518040] [2020-11-07 04:45:49,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 04:45:49,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:45:49,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 04:45:49,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 04:45:49,583 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand 6 states. [2020-11-07 04:45:49,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:45:49,886 INFO L93 Difference]: Finished difference Result 99 states and 108 transitions. [2020-11-07 04:45:49,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 04:45:49,887 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-11-07 04:45:49,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:45:49,890 INFO L225 Difference]: With dead ends: 99 [2020-11-07 04:45:49,890 INFO L226 Difference]: Without dead ends: 89 [2020-11-07 04:45:49,891 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 [2020-11-07 04:45:49,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-07 04:45:49,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 84. [2020-11-07 04:45:49,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-07 04:45:49,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2020-11-07 04:45:49,907 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 63 [2020-11-07 04:45:49,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:45:49,907 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2020-11-07 04:45:49,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 04:45:49,907 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2020-11-07 04:45:49,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-11-07 04:45:49,909 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:45:49,910 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, 1, 1] [2020-11-07 04:45:49,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 04:45:49,910 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:45:49,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:45:49,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1735708206, now seen corresponding path program 1 times [2020-11-07 04:45:49,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:45:49,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [496168888] [2020-11-07 04:45:49,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:45:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:45:49,945 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:45:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:45:49,967 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:45:50,006 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 04:45:50,007 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 04:45:50,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 04:45:50,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:45:50 BoogieIcfgContainer [2020-11-07 04:45:50,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 04:45:50,104 INFO L168 Benchmark]: Toolchain (without parser) took 3647.78 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 127.4 MB in the beginning and 96.8 MB in the end (delta: 30.7 MB). Peak memory consumption was 61.6 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:50,105 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 151.0 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 04:45:50,107 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.02 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 116.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:50,109 INFO L168 Benchmark]: Boogie Preprocessor took 95.65 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 114.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:50,110 INFO L168 Benchmark]: RCFGBuilder took 768.09 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 125.9 MB in the end (delta: -11.0 MB). Peak memory consumption was 16.2 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:50,112 INFO L168 Benchmark]: TraceAbstraction took 2338.09 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 125.4 MB in the beginning and 96.8 MB in the end (delta: 28.6 MB). Peak memory consumption was 60.1 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:50,118 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 151.0 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 424.02 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 116.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 95.65 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 114.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 768.09 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 125.9 MB in the end (delta: -11.0 MB). Peak memory consumption was 16.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2338.09 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 125.4 MB in the beginning and 96.8 MB in the end (delta: 28.6 MB). Peak memory consumption was 60.1 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(); VAL [__VERIFIER_nondet_double()=4294967308, x=4294967308] [L67] double y = 0.0 / 0.0; VAL [x=4294967308] [L74] CALL, EXPR isnan_double(x) VAL [\old(x)=4294967308] [L18] return x != x; VAL [\old(x)=4294967308, \result=0, x=4294967308] [L74] RET, EXPR isnan_double(x) VAL [isnan_double(x)=0, x=4294967308] [L74] COND TRUE !isnan_double(x) VAL [isnan_double(x)=0, x=4294967308] [L76] CALL, EXPR fmax_double(x, y) VAL [\old(x)=4294967308, \old(y)=4294967303] [L57] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4294967308] [L29] __uint32_t msw, lsw; VAL [\old(x)=4294967308, x=4294967308] [L32] ieee_double_shape_type ew_u; VAL [\old(x)=4294967308, ew_u={3:0}, x=4294967308] [L33] ew_u.value = (x) VAL [\old(x)=4294967308, ew_u={3:0}, x=4294967308] [L34] EXPR ew_u.parts.msw VAL [\old(x)=4294967308, ew_u={3:0}, ew_u.parts.msw=4293918721, x=4294967308] [L34] (msw) = ew_u.parts.msw VAL [\old(x)=4294967308, ew_u={3:0}, ew_u.parts.msw=4293918721, msw=4293918721, x=4294967308] [L35] EXPR ew_u.parts.lsw VAL [\old(x)=4294967308, ew_u={3:0}, ew_u.parts.lsw=4294967297, msw=4293918721, x=4294967308] [L35] (lsw) = ew_u.parts.lsw VAL [\old(x)=4294967308, ew_u={3:0}, ew_u.parts.lsw=4294967297, lsw=4294967297, msw=4293918721, x=4294967308] [L38-L39] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=4294967308, lsw=4294967297, msw=4293918721, x=4294967308] [L41-L42] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=4294967308, lsw=4294967297, msw=4293918721, x=4294967308] [L44-L45] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=4294967308, lsw=4294967297, msw=4293918721, x=4294967308] [L48-L49] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) VAL [\old(x)=4294967308, lsw=4294967297, msw=4293918721, x=4294967308] [L52] return 0; VAL [\old(x)=4294967308, \result=0, lsw=4294967297, msw=4293918721, x=4294967308] [L57] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4294967308, \old(y)=4294967303, __fpclassify_double(x)=0, x=4294967308, y=4294967303] [L57] COND TRUE __fpclassify_double(x) == 0 VAL [\old(x)=4294967308, \old(y)=4294967303, __fpclassify_double(x)=0, x=4294967308, y=4294967303] [L58] return y; VAL [\old(x)=4294967308, \old(y)=4294967303, \result=4294967303, x=4294967308, y=4294967303] [L76] RET, EXPR fmax_double(x, y) VAL [fmax_double(x, y)=4294967303, x=4294967308, y=4294967303] [L76] double res = fmax_double(x, y); VAL [fmax_double(x, y)=4294967303, res=4294967303, x=4294967308, y=4294967303] [L79] COND TRUE res != x VAL [res=4294967303, x=4294967308, y=4294967303] [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, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 261 SDtfs, 103 SDslu, 412 SDs, 0 SdLazy, 356 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s 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=89occurred 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 19282 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...