/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 --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0670.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 10:19:38,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 10:19:38,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 10:19:38,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 10:19:38,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 10:19:38,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 10:19:38,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 10:19:38,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 10:19:38,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 10:19:38,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 10:19:38,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 10:19:38,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 10:19:38,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 10:19:38,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 10:19:38,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 10:19:38,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 10:19:38,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 10:19:38,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 10:19:38,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 10:19:38,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 10:19:38,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 10:19:38,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 10:19:38,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 10:19:38,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 10:19:38,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 10:19:38,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 10:19:38,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 10:19:38,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 10:19:38,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 10:19:38,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 10:19:38,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 10:19:38,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 10:19:38,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 10:19:38,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 10:19:38,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 10:19:38,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 10:19:38,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 10:19:38,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 10:19:38,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 10:19:38,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 10:19:38,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 10:19:38,766 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 [2020-10-13 10:19:38,804 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 10:19:38,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 10:19:38,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 10:19:38,806 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 10:19:38,806 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 10:19:38,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 10:19:38,807 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 10:19:38,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 10:19:38,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 10:19:38,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 10:19:38,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 10:19:38,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 10:19:38,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 10:19:38,808 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 10:19:38,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 10:19:38,809 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 10:19:38,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 10:19:38,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 10:19:38,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 10:19:38,809 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 10:19:38,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 10:19:38,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:19:38,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 10:19:38,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 10:19:38,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 10:19:38,810 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 10:19:38,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 10:19:38,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 10:19:38,811 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 10:19:38,811 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.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 10:19:39,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 10:19:39,128 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 10:19:39,131 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 10:19:39,133 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 10:19:39,133 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 10:19:39,134 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0670.c [2020-10-13 10:19:39,192 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/efa71142f/f84ac216e3d841bc8847b04958a655ca/FLAG99dd19f22 [2020-10-13 10:19:39,701 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 10:19:39,701 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_0670.c [2020-10-13 10:19:39,713 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/efa71142f/f84ac216e3d841bc8847b04958a655ca/FLAG99dd19f22 [2020-10-13 10:19:40,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/efa71142f/f84ac216e3d841bc8847b04958a655ca [2020-10-13 10:19:40,046 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 10:19:40,048 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 10:19:40,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 10:19:40,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 10:19:40,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 10:19:40,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:19:40" (1/1) ... [2020-10-13 10:19:40,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bbd1661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:40, skipping insertion in model container [2020-10-13 10:19:40,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:19:40" (1/1) ... [2020-10-13 10:19:40,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 10:19:40,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 10:19:40,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:19:40,459 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 10:19:40,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:19:40,541 INFO L208 MainTranslator]: Completed translation [2020-10-13 10:19:40,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:40 WrapperNode [2020-10-13 10:19:40,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 10:19:40,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 10:19:40,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 10:19:40,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 10:19:40,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:40" (1/1) ... [2020-10-13 10:19:40,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:40" (1/1) ... [2020-10-13 10:19:40,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:40" (1/1) ... [2020-10-13 10:19:40,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:40" (1/1) ... [2020-10-13 10:19:40,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:40" (1/1) ... [2020-10-13 10:19:40,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:40" (1/1) ... [2020-10-13 10:19:40,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:40" (1/1) ... [2020-10-13 10:19:40,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 10:19:40,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 10:19:40,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 10:19:40,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 10:19:40,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:40" (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 [2020-10-13 10:19:40,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 10:19:40,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 10:19:40,683 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-10-13 10:19:40,683 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-10-13 10:19:40,683 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2020-10-13 10:19:40,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2020-10-13 10:19:40,684 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 10:19:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 10:19:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-13 10:19:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-10-13 10:19:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-10-13 10:19:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 10:19:40,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-13 10:19:40,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 10:19:40,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 10:19:40,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 10:19:40,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-13 10:19:40,685 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2020-10-13 10:19:40,686 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2020-10-13 10:19:40,686 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 10:19:40,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 10:19:40,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-13 10:19:40,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 10:19:41,304 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 10:19:41,305 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-13 10:19:41,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:19:41 BoogieIcfgContainer [2020-10-13 10:19:41,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 10:19:41,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 10:19:41,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 10:19:41,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 10:19:41,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:19:40" (1/3) ... [2020-10-13 10:19:41,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ab2105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:19:41, skipping insertion in model container [2020-10-13 10:19:41,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:19:40" (2/3) ... [2020-10-13 10:19:41,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ab2105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:19:41, skipping insertion in model container [2020-10-13 10:19:41,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:19:41" (3/3) ... [2020-10-13 10:19:41,321 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0670.c [2020-10-13 10:19:41,333 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 10:19:41,342 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 10:19:41,357 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 10:19:41,384 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 10:19:41,385 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 10:19:41,385 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 10:19:41,385 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 10:19:41,386 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 10:19:41,386 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 10:19:41,386 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 10:19:41,386 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 10:19:41,410 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2020-10-13 10:19:41,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-13 10:19:41,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:19:41,420 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:19:41,421 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:19:41,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:19:41,428 INFO L82 PathProgramCache]: Analyzing trace with hash -2098232351, now seen corresponding path program 1 times [2020-10-13 10:19:41,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:19:41,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [267822641] [2020-10-13 10:19:41,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:19:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:19:41,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:19:41,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:19:41,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:19:41,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 10:19:41,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:19:41,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-10-13 10:19:41,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:19:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:19:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-13 10:19:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:19:41,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 10:19:42,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:19:42,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:19:42,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:19:42,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:19:42,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:19:42,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:19:42,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 10:19:42,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:19:42,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:19:42,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:19:42,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:19:42,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:19:42,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:19:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:19:42,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:19:42,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:19:42,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:19:42,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:19:42,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 10:19:42,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:19:42,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:19:42,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:19:42,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:19:42,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:19:42,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 10:19:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:19:42,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:19:42,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:19:42,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:19:42,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 10:19:42,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:19:42,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 10:19:42,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:19:42,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:19:42,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 10:19:42,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:19:42,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:19:42,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 10:19:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:19:42,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:19:42,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:19:42,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:19:42,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:19:42,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:19:42,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:19:42,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:19:42,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:19:42,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:19:42,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:19:42,190 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 10:19:42,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [267822641] [2020-10-13 10:19:42,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:19:42,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 10:19:42,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272283205] [2020-10-13 10:19:42,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 10:19:42,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:19:42,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 10:19:42,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 10:19:42,222 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 4 states. [2020-10-13 10:19:42,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:19:42,685 INFO L93 Difference]: Finished difference Result 211 states and 327 transitions. [2020-10-13 10:19:42,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 10:19:42,687 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-10-13 10:19:42,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:19:42,699 INFO L225 Difference]: With dead ends: 211 [2020-10-13 10:19:42,700 INFO L226 Difference]: Without dead ends: 106 [2020-10-13 10:19:42,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:19:42,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-13 10:19:42,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-10-13 10:19:42,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-13 10:19:42,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 148 transitions. [2020-10-13 10:19:42,763 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 148 transitions. Word has length 30 [2020-10-13 10:19:42,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:19:42,765 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 148 transitions. [2020-10-13 10:19:42,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 10:19:42,766 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 148 transitions. [2020-10-13 10:19:42,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-13 10:19:42,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:19:42,768 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:19:42,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 10:19:42,769 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:19:42,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:19:42,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1945989656, now seen corresponding path program 1 times [2020-10-13 10:19:42,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:19:42,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1647568262] [2020-10-13 10:19:42,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:19:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 10:19:42,860 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 10:19:42,860 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 10:19:42,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 10:19:42,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:19:42 BoogieIcfgContainer [2020-10-13 10:19:42,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 10:19:42,896 INFO L168 Benchmark]: Toolchain (without parser) took 2847.46 ms. Allocated memory was 148.4 MB in the beginning and 233.8 MB in the end (delta: 85.5 MB). Free memory was 103.9 MB in the beginning and 111.8 MB in the end (delta: -7.8 MB). Peak memory consumption was 77.6 MB. Max. memory is 7.1 GB. [2020-10-13 10:19:42,898 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 10:19:42,900 INFO L168 Benchmark]: CACSL2BoogieTranslator took 493.13 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 103.5 MB in the beginning and 179.1 MB in the end (delta: -75.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-10-13 10:19:42,901 INFO L168 Benchmark]: Boogie Preprocessor took 72.65 ms. Allocated memory is still 205.0 MB. Free memory was 179.1 MB in the beginning and 175.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2020-10-13 10:19:42,901 INFO L168 Benchmark]: RCFGBuilder took 695.67 ms. Allocated memory is still 205.0 MB. Free memory was 175.8 MB in the beginning and 134.6 MB in the end (delta: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 7.1 GB. [2020-10-13 10:19:42,903 INFO L168 Benchmark]: TraceAbstraction took 1580.67 ms. Allocated memory was 205.0 MB in the beginning and 233.8 MB in the end (delta: 28.8 MB). Free memory was 134.0 MB in the beginning and 111.8 MB in the end (delta: 22.2 MB). Peak memory consumption was 51.0 MB. Max. memory is 7.1 GB. [2020-10-13 10:19:42,913 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 493.13 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 103.5 MB in the beginning and 179.1 MB in the end (delta: -75.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.65 ms. Allocated memory is still 205.0 MB. Free memory was 179.1 MB in the beginning and 175.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 695.67 ms. Allocated memory is still 205.0 MB. Free memory was 175.8 MB in the beginning and 134.6 MB in the end (delta: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1580.67 ms. Allocated memory was 205.0 MB in the beginning and 233.8 MB in the end (delta: 28.8 MB). Free memory was 134.0 MB in the beginning and 111.8 MB in the end (delta: 22.2 MB). Peak memory consumption was 51.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 234]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someUnaryDOUBLEoperation at line 45, overapproximation of bitwiseAnd at line 136, overapproximation of someBinaryArithmeticFLOAToperation at line 138. Possible FailurePath: [L30-L35] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L37-L42] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L44-L48] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L50-L52] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L118-L119] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; [L224] float x = __VERIFIER_nondet_float(); [L225] float y = __VERIFIER_nondet_float(); [L227] CALL, EXPR isnan_float(x) [L13] return x != x; [L227] RET, EXPR isnan_float(x) [L227] isnan_float(x) || isnan_float(y) [L227] COND TRUE isnan_float(x) || isnan_float(y) [L230] CALL, EXPR __ieee754_atan2f(y, x) [L122] float z; [L123] __int32_t k, m, hx, hy, ix, iy; [L126] ieee_float_shape_type gf_u; [L127] gf_u.value = (x) [L128] EXPR gf_u.word [L128] (hx) = gf_u.word [L130] ix = hx & 0x7fffffff [L132] ieee_float_shape_type gf_u; [L133] gf_u.value = (y) [L134] EXPR gf_u.word [L134] (hy) = gf_u.word [L136] iy = hy & 0x7fffffff [L137] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L138] return x + y; [L230] RET, EXPR __ieee754_atan2f(y, x) [L230] float res = __ieee754_atan2f(y, x); [L233] CALL, EXPR isnan_float(res) [L13] return x != x; [L233] RET, EXPR isnan_float(res) [L233] COND TRUE !isnan_float(res) [L234] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 111 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 148 SDtfs, 28 SDslu, 125 SDs, 0 SdLazy, 141 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 2755 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 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...