/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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_0250b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:47:26,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:47:26,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:47:26,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:47:26,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:47:26,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:47:26,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:47:26,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:47:26,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:47:26,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:47:26,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:47:26,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:47:26,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:47:26,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:47:26,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:47:26,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:47:26,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:47:26,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:47:26,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:47:26,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:47:26,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:47:26,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:47:26,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:47:26,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:47:26,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:47:26,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:47:26,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:47:26,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:47:26,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:47:26,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:47:26,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:47:26,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:47:26,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:47:26,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:47:26,691 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:47:26,691 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:47:26,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:47:26,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:47:26,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:47:26,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:47:26,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:47:26,695 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 [2020-10-14 04:47:26,716 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:47:26,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:47:26,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:47:26,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:47:26,718 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:47:26,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:47:26,719 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:47:26,719 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:47:26,719 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:47:26,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:47:26,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:47:26,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:47:26,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:47:26,720 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:47:26,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:47:26,721 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:47:26,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:47:26,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:47:26,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:47:26,721 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:47:26,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:47:26,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:47:26,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:47:26,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:47:26,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:47:26,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:47:26,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:47:26,723 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:47:26,723 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:47:26,723 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 04:47:27,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:47:27,067 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:47:27,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:47:27,073 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:47:27,074 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:47:27,074 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0250b.c [2020-10-14 04:47:27,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89581eaaf/a1142c407e4f44a18ab3db8ed412c2a3/FLAGed49439c4 [2020-10-14 04:47:27,606 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:47:27,606 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_0250b.c [2020-10-14 04:47:27,620 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89581eaaf/a1142c407e4f44a18ab3db8ed412c2a3/FLAGed49439c4 [2020-10-14 04:47:27,952 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89581eaaf/a1142c407e4f44a18ab3db8ed412c2a3 [2020-10-14 04:47:27,961 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:47:27,963 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:47:27,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:47:27,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:47:27,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:47:27,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:47:27" (1/1) ... [2020-10-14 04:47:27,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c8d6227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:27, skipping insertion in model container [2020-10-14 04:47:27,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:47:27" (1/1) ... [2020-10-14 04:47:27,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:47:28,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:47:28,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:47:28,329 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:47:28,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:47:28,500 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:47:28,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:28 WrapperNode [2020-10-14 04:47:28,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:47:28,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:47:28,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:47:28,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:47:28,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:28" (1/1) ... [2020-10-14 04:47:28,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:28" (1/1) ... [2020-10-14 04:47:28,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:28" (1/1) ... [2020-10-14 04:47:28,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:28" (1/1) ... [2020-10-14 04:47:28,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:28" (1/1) ... [2020-10-14 04:47:28,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:28" (1/1) ... [2020-10-14 04:47:28,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:28" (1/1) ... [2020-10-14 04:47:28,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:47:28,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:47:28,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:47:28,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:47:28,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:28" (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 [2020-10-14 04:47:28,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:47:28,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:47:28,632 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2020-10-14 04:47:28,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-10-14 04:47:28,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2020-10-14 04:47:28,633 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-10-14 04:47:28,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2020-10-14 04:47:28,633 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:47:28,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:47:28,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-14 04:47:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2020-10-14 04:47:28,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 04:47:28,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-14 04:47:28,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 04:47:28,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 04:47:28,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 04:47:28,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-14 04:47:28,641 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-10-14 04:47:28,641 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2020-10-14 04:47:28,641 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-10-14 04:47:28,641 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2020-10-14 04:47:28,642 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:47:28,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:47:28,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:47:29,233 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:47:29,233 INFO L295 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-14 04:47:29,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:47:29 BoogieIcfgContainer [2020-10-14 04:47:29,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:47:29,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:47:29,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:47:29,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:47:29,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:47:27" (1/3) ... [2020-10-14 04:47:29,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1adcec7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:47:29, skipping insertion in model container [2020-10-14 04:47:29,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:28" (2/3) ... [2020-10-14 04:47:29,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1adcec7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:47:29, skipping insertion in model container [2020-10-14 04:47:29,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:47:29" (3/3) ... [2020-10-14 04:47:29,248 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250b.c [2020-10-14 04:47:29,259 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:47:29,267 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 04:47:29,282 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 04:47:29,305 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:47:29,305 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:47:29,305 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:47:29,306 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:47:29,306 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:47:29,306 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:47:29,306 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:47:29,306 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:47:29,324 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2020-10-14 04:47:29,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-14 04:47:29,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:47:29,332 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] [2020-10-14 04:47:29,332 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:47:29,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:47:29,338 INFO L82 PathProgramCache]: Analyzing trace with hash 999120398, now seen corresponding path program 1 times [2020-10-14 04:47:29,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:47:29,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1895058389] [2020-10-14 04:47:29,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:47:29,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:29,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:29,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:29,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 04:47:29,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:29,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-14 04:47:29,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:29,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:29,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:47:29,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 04:47:29,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:47:29,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:47:29,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:47:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:29,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:29,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:29,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:47:29,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:29,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 04:47:29,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:29,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:29,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:47:29,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:47:29,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:47:29,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:47:29,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:47:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:29,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:29,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:29,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 04:47:29,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:29,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 04:47:29,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:29,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:29,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:47:29,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 04:47:29,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:47:29,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:47:29,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-14 04:47:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:29,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:29,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:29,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:47:29,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:29,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 04:47:29,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:29,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:29,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:47:29,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:47:29,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:47:29,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:47:29,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:47:29,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1895058389] [2020-10-14 04:47:29,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:47:29,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:47:29,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67584077] [2020-10-14 04:47:29,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:47:29,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:47:29,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:47:29,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:47:29,926 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 4 states. [2020-10-14 04:47:30,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:47:30,369 INFO L93 Difference]: Finished difference Result 144 states and 214 transitions. [2020-10-14 04:47:30,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:47:30,371 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-10-14 04:47:30,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:47:30,382 INFO L225 Difference]: With dead ends: 144 [2020-10-14 04:47:30,383 INFO L226 Difference]: Without dead ends: 72 [2020-10-14 04:47:30,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:47:30,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-14 04:47:30,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-14 04:47:30,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-14 04:47:30,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2020-10-14 04:47:30,443 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 21 [2020-10-14 04:47:30,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:47:30,443 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2020-10-14 04:47:30,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:47:30,444 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2020-10-14 04:47:30,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-14 04:47:30,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:47:30,445 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] [2020-10-14 04:47:30,446 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:47:30,446 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:47:30,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:47:30,447 INFO L82 PathProgramCache]: Analyzing trace with hash 952293865, now seen corresponding path program 1 times [2020-10-14 04:47:30,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:47:30,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1943043113] [2020-10-14 04:47:30,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:47:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 04:47:30,485 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 04:47:30,485 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 04:47:30,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:47:30,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:47:30 BoogieIcfgContainer [2020-10-14 04:47:30,509 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 04:47:30,511 INFO L168 Benchmark]: Toolchain (without parser) took 2548.20 ms. Allocated memory was 145.8 MB in the beginning and 233.8 MB in the end (delta: 88.1 MB). Free memory was 101.8 MB in the beginning and 138.8 MB in the end (delta: -37.0 MB). Peak memory consumption was 51.1 MB. Max. memory is 7.1 GB. [2020-10-14 04:47:30,512 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-14 04:47:30,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 537.32 ms. Allocated memory was 145.8 MB in the beginning and 200.3 MB in the end (delta: 54.5 MB). Free memory was 101.4 MB in the beginning and 174.4 MB in the end (delta: -73.0 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2020-10-14 04:47:30,514 INFO L168 Benchmark]: Boogie Preprocessor took 69.93 ms. Allocated memory is still 200.3 MB. Free memory was 174.4 MB in the beginning and 171.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2020-10-14 04:47:30,515 INFO L168 Benchmark]: RCFGBuilder took 666.84 ms. Allocated memory is still 200.3 MB. Free memory was 171.2 MB in the beginning and 133.2 MB in the end (delta: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 7.1 GB. [2020-10-14 04:47:30,516 INFO L168 Benchmark]: TraceAbstraction took 1268.93 ms. Allocated memory was 200.3 MB in the beginning and 233.8 MB in the end (delta: 33.6 MB). Free memory was 133.2 MB in the beginning and 138.8 MB in the end (delta: -5.6 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2020-10-14 04:47:30,520 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 537.32 ms. Allocated memory was 145.8 MB in the beginning and 200.3 MB in the end (delta: 54.5 MB). Free memory was 101.4 MB in the beginning and 174.4 MB in the end (delta: -73.0 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.93 ms. Allocated memory is still 200.3 MB. Free memory was 174.4 MB in the beginning and 171.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 666.84 ms. Allocated memory is still 200.3 MB. Free memory was 171.2 MB in the beginning and 133.2 MB in the end (delta: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1268.93 ms. Allocated memory was 200.3 MB in the beginning and 233.8 MB in the end (delta: 33.6 MB). Free memory was 133.2 MB in the beginning and 138.8 MB in the end (delta: -5.6 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 233]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someUnaryDOUBLEoperation at line 147, overapproximation of bitwiseAnd at line 161, overapproximation of someUnaryFLOAToperation at line 145, overapproximation of someBinaryArithmeticFLOAToperation at line 164. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L60] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L143-L151] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; [L228] float x = -1.0f / 0.0f; [L229] CALL, EXPR __ieee754_asinf(x) [L154] float t, w, p, q, c, r, s; [L155] __int32_t hx, ix; [L157] ieee_float_shape_type gf_u; [L158] gf_u.value = (x) [L159] EXPR gf_u.word [L159] (hx) = gf_u.word [L161] ix = hx & 0x7fffffff [L162] COND TRUE ix == 0x3f800000 [L164] return x * pio2_hi_asin + x * pio2_lo_asin; [L229] RET, EXPR __ieee754_asinf(x) [L229] float res = __ieee754_asinf(x); [L232] CALL, EXPR isnan_float(res) [L58] return x != x; [L232] RET, EXPR isnan_float(res) [L232] COND TRUE !isnan_float(res) [L233] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 81 SDtfs, 77 SDslu, 5 SDs, 0 SdLazy, 93 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 1900 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...