/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1252b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 15:25:42,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 15:25:42,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 15:25:42,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 15:25:42,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 15:25:42,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 15:25:42,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 15:25:42,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 15:25:42,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 15:25:42,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 15:25:42,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 15:25:42,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 15:25:42,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 15:25:42,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 15:25:42,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 15:25:42,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 15:25:42,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 15:25:42,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 15:25:42,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 15:25:42,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 15:25:42,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 15:25:42,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 15:25:42,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 15:25:42,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 15:25:42,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 15:25:42,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 15:25:42,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 15:25:42,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 15:25:42,160 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 15:25:42,182 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 15:25:42,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 15:25:42,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 15:25:42,183 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 15:25:42,184 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 15:25:42,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 15:25:42,184 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 15:25:42,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 15:25:42,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 15:25:42,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 15:25:42,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 15:25:42,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 15:25:42,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 15:25:42,185 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 15:25:42,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 15:25:42,186 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 15:25:42,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 15:25:42,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 15:25:42,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 15:25:42,187 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 15:25:42,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 15:25:42,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 15:25:42,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 15:25:42,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 15:25:42,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 15:25:42,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 15:25:42,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 15:25:42,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 15:25:42,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 15:25:42,189 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES 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: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-08-18 15:25:42,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 15:25:42,500 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 15:25:42,503 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 15:25:42,505 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 15:25:42,505 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 15:25:42,506 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1252b.c [2020-08-18 15:25:42,580 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8671ccd1f/2ccf7f3273104ee684ad509024978068/FLAGe410eab0c [2020-08-18 15:25:43,057 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 15:25:43,058 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1252b.c [2020-08-18 15:25:43,070 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8671ccd1f/2ccf7f3273104ee684ad509024978068/FLAGe410eab0c [2020-08-18 15:25:43,439 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8671ccd1f/2ccf7f3273104ee684ad509024978068 [2020-08-18 15:25:43,449 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 15:25:43,450 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 15:25:43,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 15:25:43,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 15:25:43,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 15:25:43,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 03:25:43" (1/1) ... [2020-08-18 15:25:43,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6266eb80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:25:43, skipping insertion in model container [2020-08-18 15:25:43,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 03:25:43" (1/1) ... [2020-08-18 15:25:43,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 15:25:43,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 15:25:43,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 15:25:43,675 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 15:25:43,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 15:25:43,816 INFO L208 MainTranslator]: Completed translation [2020-08-18 15:25:43,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:25:43 WrapperNode [2020-08-18 15:25:43,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 15:25:43,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 15:25:43,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 15:25:43,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 15:25:43,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:25:43" (1/1) ... [2020-08-18 15:25:43,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:25:43" (1/1) ... [2020-08-18 15:25:43,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:25:43" (1/1) ... [2020-08-18 15:25:43,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:25:43" (1/1) ... [2020-08-18 15:25:43,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:25:43" (1/1) ... [2020-08-18 15:25:43,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:25:43" (1/1) ... [2020-08-18 15:25:43,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:25:43" (1/1) ... [2020-08-18 15:25:43,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 15:25:43,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 15:25:43,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 15:25:43,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 15:25:43,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:25:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-18 15:25:43,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 15:25:43,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 15:25:43,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-08-18 15:25:43,925 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2020-08-18 15:25:43,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-08-18 15:25:43,926 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 15:25:43,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 15:25:43,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-18 15:25:43,926 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-08-18 15:25:43,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 15:25:43,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-18 15:25:43,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 15:25:43,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 15:25:43,927 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2020-08-18 15:25:43,927 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-08-18 15:25:43,928 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 15:25:43,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 15:25:43,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 15:25:43,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-18 15:25:43,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 15:25:44,248 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 15:25:44,248 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-18 15:25:44,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 03:25:44 BoogieIcfgContainer [2020-08-18 15:25:44,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 15:25:44,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 15:25:44,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 15:25:44,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 15:25:44,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 03:25:43" (1/3) ... [2020-08-18 15:25:44,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c9e391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 03:25:44, skipping insertion in model container [2020-08-18 15:25:44,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:25:43" (2/3) ... [2020-08-18 15:25:44,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c9e391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 03:25:44, skipping insertion in model container [2020-08-18 15:25:44,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 03:25:44" (3/3) ... [2020-08-18 15:25:44,262 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252b.c [2020-08-18 15:25:44,274 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 15:25:44,282 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 15:25:44,298 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 15:25:44,330 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 15:25:44,330 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 15:25:44,331 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 15:25:44,331 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 15:25:44,331 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 15:25:44,331 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 15:25:44,331 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 15:25:44,331 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 15:25:44,351 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-08-18 15:25:44,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-08-18 15:25:44,358 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:25:44,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:25:44,360 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:25:44,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:25:44,365 INFO L82 PathProgramCache]: Analyzing trace with hash -592398611, now seen corresponding path program 1 times [2020-08-18 15:25:44,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:25:44,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1924319741] [2020-08-18 15:25:44,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:25:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:25:44,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:25:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:25:44,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:25:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:25:44,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 15:25:44,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:25:44,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:25:44,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1924319741] [2020-08-18 15:25:44,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:25:44,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 15:25:44,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206808422] [2020-08-18 15:25:44,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 15:25:44,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:25:44,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 15:25:44,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 15:25:44,646 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 4 states. [2020-08-18 15:25:44,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:25:44,893 INFO L93 Difference]: Finished difference Result 79 states and 107 transitions. [2020-08-18 15:25:44,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-18 15:25:44,896 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-08-18 15:25:44,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:25:44,907 INFO L225 Difference]: With dead ends: 79 [2020-08-18 15:25:44,907 INFO L226 Difference]: Without dead ends: 40 [2020-08-18 15:25:44,911 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-18 15:25:44,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-08-18 15:25:44,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-08-18 15:25:44,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-08-18 15:25:44,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-08-18 15:25:44,962 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 22 [2020-08-18 15:25:44,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:25:44,963 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-08-18 15:25:44,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 15:25:44,963 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-08-18 15:25:44,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-18 15:25:44,966 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:25:44,966 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] [2020-08-18 15:25:44,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 15:25:44,967 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:25:44,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:25:44,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1646954013, now seen corresponding path program 1 times [2020-08-18 15:25:44,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:25:44,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33371918] [2020-08-18 15:25:44,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:25:45,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:25:45,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:25:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:25:45,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:25:45,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:25:45,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 15:25:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:25:45,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:25:45,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [33371918] [2020-08-18 15:25:45,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:25:45,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 15:25:45,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711524255] [2020-08-18 15:25:45,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 15:25:45,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:25:45,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 15:25:45,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-18 15:25:45,152 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 6 states. [2020-08-18 15:25:45,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:25:45,416 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2020-08-18 15:25:45,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-18 15:25:45,417 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-08-18 15:25:45,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:25:45,421 INFO L225 Difference]: With dead ends: 59 [2020-08-18 15:25:45,421 INFO L226 Difference]: Without dead ends: 44 [2020-08-18 15:25:45,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-18 15:25:45,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-08-18 15:25:45,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-08-18 15:25:45,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-08-18 15:25:45,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2020-08-18 15:25:45,435 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 23 [2020-08-18 15:25:45,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:25:45,436 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2020-08-18 15:25:45,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 15:25:45,436 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2020-08-18 15:25:45,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-18 15:25:45,437 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:25:45,438 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] [2020-08-18 15:25:45,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 15:25:45,438 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:25:45,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:25:45,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1003466516, now seen corresponding path program 1 times [2020-08-18 15:25:45,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:25:45,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2126341580] [2020-08-18 15:25:45,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:25:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:25:45,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:25:45,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:25:45,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:25:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:25:45,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 15:25:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:25:45,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:25:45,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2126341580] [2020-08-18 15:25:45,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:25:45,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 15:25:45,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563189057] [2020-08-18 15:25:45,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 15:25:45,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:25:45,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 15:25:45,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-18 15:25:45,571 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand 6 states. [2020-08-18 15:25:45,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:25:45,805 INFO L93 Difference]: Finished difference Result 63 states and 74 transitions. [2020-08-18 15:25:45,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-18 15:25:45,806 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-08-18 15:25:45,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:25:45,808 INFO L225 Difference]: With dead ends: 63 [2020-08-18 15:25:45,808 INFO L226 Difference]: Without dead ends: 48 [2020-08-18 15:25:45,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-18 15:25:45,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-08-18 15:25:45,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2020-08-18 15:25:45,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-08-18 15:25:45,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2020-08-18 15:25:45,819 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 26 [2020-08-18 15:25:45,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:25:45,819 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2020-08-18 15:25:45,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 15:25:45,820 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2020-08-18 15:25:45,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-18 15:25:45,821 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:25:45,821 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] [2020-08-18 15:25:45,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 15:25:45,822 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:25:45,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:25:45,822 INFO L82 PathProgramCache]: Analyzing trace with hash -793484843, now seen corresponding path program 1 times [2020-08-18 15:25:45,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:25:45,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [646935565] [2020-08-18 15:25:45,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:25:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 15:25:45,844 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 15:25:45,845 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 15:25:45,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 15:25:45,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 03:25:45 BoogieIcfgContainer [2020-08-18 15:25:45,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 15:25:45,880 INFO L168 Benchmark]: Toolchain (without parser) took 2427.71 ms. Allocated memory was 148.9 MB in the beginning and 232.8 MB in the end (delta: 83.9 MB). Free memory was 103.8 MB in the beginning and 135.5 MB in the end (delta: -31.7 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. [2020-08-18 15:25:45,881 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 148.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-18 15:25:45,883 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.09 ms. Allocated memory was 148.9 MB in the beginning and 205.0 MB in the end (delta: 56.1 MB). Free memory was 103.6 MB in the beginning and 183.8 MB in the end (delta: -80.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2020-08-18 15:25:45,885 INFO L168 Benchmark]: Boogie Preprocessor took 47.92 ms. Allocated memory is still 205.0 MB. Free memory was 183.8 MB in the beginning and 181.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-08-18 15:25:45,886 INFO L168 Benchmark]: RCFGBuilder took 388.17 ms. Allocated memory is still 205.0 MB. Free memory was 181.5 MB in the beginning and 161.1 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-08-18 15:25:45,894 INFO L168 Benchmark]: TraceAbstraction took 1621.81 ms. Allocated memory was 205.0 MB in the beginning and 232.8 MB in the end (delta: 27.8 MB). Free memory was 160.5 MB in the beginning and 135.5 MB in the end (delta: 25.0 MB). Peak memory consumption was 52.7 MB. Max. memory is 7.1 GB. [2020-08-18 15:25:45,904 INFO L336 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 148.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 364.09 ms. Allocated memory was 148.9 MB in the beginning and 205.0 MB in the end (delta: 56.1 MB). Free memory was 103.6 MB in the beginning and 183.8 MB in the end (delta: -80.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.92 ms. Allocated memory is still 205.0 MB. Free memory was 183.8 MB in the beginning and 181.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 388.17 ms. Allocated memory is still 205.0 MB. Free memory was 181.5 MB in the beginning and 161.1 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1621.81 ms. Allocated memory was 205.0 MB in the beginning and 232.8 MB in the end (delta: 27.8 MB). Free memory was 160.5 MB in the beginning and 135.5 MB in the end (delta: 25.0 MB). Peak memory consumption was 52.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 85]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 84, overapproximation of someUnaryDOUBLEoperation at line 80. Possible FailurePath: [L79] double x = 0.0; [L80] double y = -0.0; [L81] CALL, EXPR fmax_double(x, y) [L52] CALL, EXPR __fpclassify_double(x) [L24] __uint32_t msw, lsw; [L27] ieee_double_shape_type ew_u; [L28] ew_u.value = (x) [L29] EXPR ew_u.parts.msw [L29] (msw) = ew_u.parts.msw [L30] EXPR ew_u.parts.lsw [L30] (lsw) = ew_u.parts.lsw [L33-L34] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L36-L37] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L39-L40] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L43-L44] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L47] return 0; [L52] RET, EXPR __fpclassify_double(x) [L52] COND TRUE __fpclassify_double(x) == 0 [L53] return y; [L81] RET, EXPR fmax_double(x, y) [L81] double res = fmax_double(x, y); [L84] EXPR res == 0.0 && __signbit_double(res) == 0 [L84] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L85] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 123 SDtfs, 117 SDslu, 43 SDs, 0 SdLazy, 296 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 4170 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...