/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_1230.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:24:24,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:24:24,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:24:24,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 00:24:24,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:24:24,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:24:24,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:24:24,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:24:24,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:24:24,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:24:24,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:24:24,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:24:24,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:24:24,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:24:24,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:24:24,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:24:24,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 00:24:24,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:24:24,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:24:24,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:24:24,151 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 00:24:24,176 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:24:24,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:24:24,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:24:24,181 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:24:24,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:24:24,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:24:24,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:24:24,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:24:24,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:24:24,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:24:24,184 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:24:24,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:24:24,184 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:24:24,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:24:24,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:24:24,185 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:24:24,185 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:24:24,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:24:24,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:24:24,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:24:24,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:24:24,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:24:24,186 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:24:24,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:24:24,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:24:24,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:24:24,610 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:24:24,611 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:24:24,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2020-11-07 00:24:24,702 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/045d0e92d/0614741424d14d8b8a12cf69dfab4f56/FLAG42d8f85ea [2020-11-07 00:24:25,388 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:24:25,389 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2020-11-07 00:24:25,399 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/045d0e92d/0614741424d14d8b8a12cf69dfab4f56/FLAG42d8f85ea [2020-11-07 00:24:25,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/045d0e92d/0614741424d14d8b8a12cf69dfab4f56 [2020-11-07 00:24:25,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:24:25,754 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:24:25,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:24:25,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:24:25,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:24:25,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:24:25" (1/1) ... [2020-11-07 00:24:25,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5af4a680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:25, skipping insertion in model container [2020-11-07 00:24:25,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:24:25" (1/1) ... [2020-11-07 00:24:25,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:24:25,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:24:25,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:24:25,986 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:24:26,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:24:26,034 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:24:26,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:26 WrapperNode [2020-11-07 00:24:26,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:24:26,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:24:26,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:24:26,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:24:26,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:26" (1/1) ... [2020-11-07 00:24:26,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:26" (1/1) ... [2020-11-07 00:24:26,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:26" (1/1) ... [2020-11-07 00:24:26,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:26" (1/1) ... [2020-11-07 00:24:26,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:26" (1/1) ... [2020-11-07 00:24:26,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:26" (1/1) ... [2020-11-07 00:24:26,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:26" (1/1) ... [2020-11-07 00:24:26,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:24:26,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:24:26,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:24:26,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:24:26,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:26" (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 00:24:26,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:24:26,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:24:26,170 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:24:26,170 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-11-07 00:24:26,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-11-07 00:24:26,171 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-11-07 00:24:26,171 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:24:26,171 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:24:26,171 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:24:26,172 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:24:26,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:24:26,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-11-07 00:24:26,172 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-11-07 00:24:26,172 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-11-07 00:24:26,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-07 00:24:26,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:24:26,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:24:26,173 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-11-07 00:24:26,173 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:24:26,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:24:26,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:24:26,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:24:26,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:24:26,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-07 00:24:26,755 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:24:26,756 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-11-07 00:24:26,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:24:26 BoogieIcfgContainer [2020-11-07 00:24:26,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:24:26,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:24:26,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:24:26,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:24:26,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:24:25" (1/3) ... [2020-11-07 00:24:26,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566190e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:24:26, skipping insertion in model container [2020-11-07 00:24:26,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:26" (2/3) ... [2020-11-07 00:24:26,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566190e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:24:26, skipping insertion in model container [2020-11-07 00:24:26,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:24:26" (3/3) ... [2020-11-07 00:24:26,771 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1230.c [2020-11-07 00:24:26,790 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:24:26,793 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:24:26,806 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:24:26,848 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:24:26,848 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:24:26,848 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:24:26,849 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:24:26,849 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:24:26,849 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:24:26,850 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:24:26,850 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:24:26,878 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-11-07 00:24:26,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-07 00:24:26,894 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:26,895 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] [2020-11-07 00:24:26,895 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:26,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:26,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1338507037, now seen corresponding path program 1 times [2020-11-07 00:24:26,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:26,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1936123861] [2020-11-07 00:24:26,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:27,012 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:27,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:24:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:27,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 00:24:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:27,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:24:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:27,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-11-07 00:24:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:27,345 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 00:24:27,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1936123861] [2020-11-07 00:24:27,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:24:27,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:24:27,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587254617] [2020-11-07 00:24:27,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:24:27,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:24:27,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:24:27,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:24:27,375 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 4 states. [2020-11-07 00:24:27,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:24:27,770 INFO L93 Difference]: Finished difference Result 153 states and 175 transitions. [2020-11-07 00:24:27,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-07 00:24:27,772 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-11-07 00:24:27,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:24:27,783 INFO L225 Difference]: With dead ends: 153 [2020-11-07 00:24:27,783 INFO L226 Difference]: Without dead ends: 78 [2020-11-07 00:24:27,788 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 00:24:27,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-11-07 00:24:27,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-11-07 00:24:27,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-11-07 00:24:27,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 85 transitions. [2020-11-07 00:24:27,846 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 85 transitions. Word has length 44 [2020-11-07 00:24:27,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:24:27,847 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 85 transitions. [2020-11-07 00:24:27,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:24:27,847 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 85 transitions. [2020-11-07 00:24:27,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-07 00:24:27,850 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:27,850 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] [2020-11-07 00:24:27,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:24:27,854 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:27,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:27,855 INFO L82 PathProgramCache]: Analyzing trace with hash 660798361, now seen corresponding path program 1 times [2020-11-07 00:24:27,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:27,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137097887] [2020-11-07 00:24:27,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:27,859 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:27,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:24:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:28,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 00:24:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:28,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:24:28,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:28,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-11-07 00:24:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:28,258 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 00:24:28,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137097887] [2020-11-07 00:24:28,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:24:28,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:24:28,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811599853] [2020-11-07 00:24:28,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:24:28,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:24:28,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:24:28,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:24:28,262 INFO L87 Difference]: Start difference. First operand 78 states and 85 transitions. Second operand 6 states. [2020-11-07 00:24:28,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:24:28,668 INFO L93 Difference]: Finished difference Result 100 states and 108 transitions. [2020-11-07 00:24:28,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 00:24:28,668 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-11-07 00:24:28,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:24:28,672 INFO L225 Difference]: With dead ends: 100 [2020-11-07 00:24:28,673 INFO L226 Difference]: Without dead ends: 83 [2020-11-07 00:24:28,674 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 [2020-11-07 00:24:28,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-11-07 00:24:28,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2020-11-07 00:24:28,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-11-07 00:24:28,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2020-11-07 00:24:28,698 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 58 [2020-11-07 00:24:28,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:24:28,698 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2020-11-07 00:24:28,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:24:28,699 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2020-11-07 00:24:28,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-11-07 00:24:28,702 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:28,702 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] [2020-11-07 00:24:28,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:24:28,702 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:28,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:28,705 INFO L82 PathProgramCache]: Analyzing trace with hash -870996455, now seen corresponding path program 1 times [2020-11-07 00:24:28,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:28,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100245999] [2020-11-07 00:24:28,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:28,711 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:28,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:24:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:28,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 00:24:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:28,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:24:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:29,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 00:24:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:29,024 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 00:24:29,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100245999] [2020-11-07 00:24:29,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:24:29,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:24:29,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657292692] [2020-11-07 00:24:29,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:24:29,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:24:29,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:24:29,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:24:29,028 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 6 states. [2020-11-07 00:24:29,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:24:29,305 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2020-11-07 00:24:29,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 00:24:29,306 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-11-07 00:24:29,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:24:29,308 INFO L225 Difference]: With dead ends: 104 [2020-11-07 00:24:29,308 INFO L226 Difference]: Without dead ends: 87 [2020-11-07 00:24:29,309 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 00:24:29,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-11-07 00:24:29,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 82. [2020-11-07 00:24:29,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-11-07 00:24:29,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2020-11-07 00:24:29,324 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 61 [2020-11-07 00:24:29,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:24:29,324 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2020-11-07 00:24:29,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:24:29,325 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2020-11-07 00:24:29,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-11-07 00:24:29,327 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:29,327 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] [2020-11-07 00:24:29,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:24:29,327 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:29,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:29,328 INFO L82 PathProgramCache]: Analyzing trace with hash -229439911, now seen corresponding path program 1 times [2020-11-07 00:24:29,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:29,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256472990] [2020-11-07 00:24:29,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:29,331 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:29,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:24:29,363 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:24:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:24:29,414 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:24:29,461 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:24:29,461 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:24:29,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:24:29,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:24:29 BoogieIcfgContainer [2020-11-07 00:24:29,488 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:24:29,492 INFO L168 Benchmark]: Toolchain (without parser) took 3741.04 ms. Allocated memory is still 157.3 MB. Free memory was 134.3 MB in the beginning and 66.5 MB in the end (delta: 67.8 MB). Peak memory consumption was 68.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:29,493 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory is still 98.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:24:29,494 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.58 ms. Allocated memory is still 157.3 MB. Free memory was 133.6 MB in the beginning and 123.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:29,496 INFO L168 Benchmark]: Boogie Preprocessor took 46.26 ms. Allocated memory is still 157.3 MB. Free memory was 123.3 MB in the beginning and 121.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:29,498 INFO L168 Benchmark]: RCFGBuilder took 676.30 ms. Allocated memory is still 157.3 MB. Free memory was 121.4 MB in the beginning and 125.7 MB in the end (delta: -4.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:29,499 INFO L168 Benchmark]: TraceAbstraction took 2725.70 ms. Allocated memory is still 157.3 MB. Free memory was 125.3 MB in the beginning and 66.5 MB in the end (delta: 58.9 MB). Peak memory consumption was 58.6 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:29,509 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 is still 98.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 276.58 ms. Allocated memory is still 157.3 MB. Free memory was 133.6 MB in the beginning and 123.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.26 ms. Allocated memory is still 157.3 MB. Free memory was 123.3 MB in the beginning and 121.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 676.30 ms. Allocated memory is still 157.3 MB. Free memory was 121.4 MB in the beginning and 125.7 MB in the end (delta: -4.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2725.70 ms. Allocated memory is still 157.3 MB. Free memory was 125.3 MB in the beginning and 66.5 MB in the end (delta: 58.9 MB). Peak memory consumption was 58.6 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 64. Possible FailurePath: [L63] double x = 0.0 / 0.0; [L64] double y = 0.0 / 0.0; [L65] CALL, EXPR fmin_double(x, y) [L47] CALL, EXPR __fpclassify_double(x) [L20] __uint32_t msw, lsw; [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (msw) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lsw) = ew_u.parts.lsw [L29-L30] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L32-L33] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L35-L36] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L39-L40] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L43] return 0; [L47] RET, EXPR __fpclassify_double(x) [L47] COND TRUE __fpclassify_double(x) == 0 [L48] return y; [L65] RET, EXPR fmin_double(x, y) [L65] double res = fmin_double(x, y); [L67] CALL, EXPR isnan_double(res) [L18] return x != x; [L67] RET, EXPR isnan_double(res) [L67] COND TRUE !isnan_double(res) [L68] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1230.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: 2.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.1s, 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, 0.6s 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...