/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.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=SHALLOWEST --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 language data_model -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1271a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:04:18,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:04:18,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:04:18,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:04:18,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:04:18,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:04:18,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:04:18,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:04:18,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:04:18,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:04:18,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:04:18,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:04:18,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:04:18,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:04:18,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:04:18,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:04:18,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:04:18,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:04:18,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:04:18,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:04:18,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:04:18,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:04:18,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:04:18,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:04:18,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:04:18,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:04:18,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:04:18,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:04:18,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:04:18,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:04:18,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:04:18,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:04:18,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:04:18,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:04:18,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:04:18,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:04:18,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:04:18,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:04:18,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:04:18,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:04:18,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:04:18,758 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 [2020-10-27 01:04:18,797 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:04:18,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:04:18,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:04:18,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:04:18,799 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:04:18,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:04:18,800 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:04:18,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:04:18,800 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:04:18,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:04:18,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:04:18,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:04:18,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:04:18,801 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:04:18,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:04:18,802 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:04:18,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:04:18,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:04:18,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:04:18,803 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:04:18,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:04:18,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:04:18,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:04:18,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:04:18,804 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:04:18,804 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:04:18,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:04:18,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:04:18,805 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:04:18,805 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:04:19,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:04:19,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:04:19,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:04:19,242 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:04:19,243 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:04:19,244 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1271a.c [2020-10-27 01:04:19,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98a3ecdd3/97bdc4a45779469cb7c7125c6d56df38/FLAGf966d8421 [2020-10-27 01:04:20,157 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:04:20,158 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_1271a.c [2020-10-27 01:04:20,176 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98a3ecdd3/97bdc4a45779469cb7c7125c6d56df38/FLAGf966d8421 [2020-10-27 01:04:20,455 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98a3ecdd3/97bdc4a45779469cb7c7125c6d56df38 [2020-10-27 01:04:20,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:04:20,465 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:04:20,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:04:20,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:04:20,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:04:20,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:04:20" (1/1) ... [2020-10-27 01:04:20,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f0af55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:04:20, skipping insertion in model container [2020-10-27 01:04:20,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:04:20" (1/1) ... [2020-10-27 01:04:20,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:04:20,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:04:20,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:04:20,783 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:04:20,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:04:20,938 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:04:20,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:04:20 WrapperNode [2020-10-27 01:04:20,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:04:20,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:04:20,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:04:20,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:04:20,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:04:20" (1/1) ... [2020-10-27 01:04:20,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:04:20" (1/1) ... [2020-10-27 01:04:20,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:04:20" (1/1) ... [2020-10-27 01:04:20,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:04:20" (1/1) ... [2020-10-27 01:04:21,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:04:20" (1/1) ... [2020-10-27 01:04:21,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:04:20" (1/1) ... [2020-10-27 01:04:21,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:04:20" (1/1) ... [2020-10-27 01:04:21,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:04:21,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:04:21,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:04:21,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:04:21,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:04:20" (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 [2020-10-27 01:04:21,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:04:21,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:04:21,161 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:04:21,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2020-10-27 01:04:21,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_hypotf [2020-10-27 01:04:21,161 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-10-27 01:04:21,161 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_float [2020-10-27 01:04:21,162 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:04:21,162 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:04:21,162 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:04:21,162 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:04:21,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:04:21,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-27 01:04:21,163 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2020-10-27 01:04:21,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 01:04:21,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:04:21,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:04:21,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:04:21,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 01:04:21,164 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_hypotf [2020-10-27 01:04:21,164 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-10-27 01:04:21,164 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_float [2020-10-27 01:04:21,164 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:04:21,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:04:21,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:04:21,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:04:22,052 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:04:22,052 INFO L298 CfgBuilder]: Removed 34 assume(true) statements. [2020-10-27 01:04:22,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:04:22 BoogieIcfgContainer [2020-10-27 01:04:22,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:04:22,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:04:22,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:04:22,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:04:22,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:04:20" (1/3) ... [2020-10-27 01:04:22,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65056769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:04:22, skipping insertion in model container [2020-10-27 01:04:22,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:04:20" (2/3) ... [2020-10-27 01:04:22,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65056769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:04:22, skipping insertion in model container [2020-10-27 01:04:22,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:04:22" (3/3) ... [2020-10-27 01:04:22,064 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1271a.c [2020-10-27 01:04:22,076 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:04:22,082 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:04:22,096 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:04:22,125 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:04:22,125 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:04:22,125 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:04:22,125 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:04:22,126 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:04:22,126 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:04:22,126 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:04:22,126 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:04:22,146 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2020-10-27 01:04:22,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-27 01:04:22,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:04:22,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:04:22,157 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:04:22,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:04:22,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1672690526, now seen corresponding path program 1 times [2020-10-27 01:04:22,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:04:22,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1296452521] [2020-10-27 01:04:22,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:04:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:04:22,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:04:22,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:04:22,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:04:22,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:04:22,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:04:22,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:04:22,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 01:04:22,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 01:04:22,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 596 [2020-10-27 01:04:22,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:04:22,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:04:22,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 01:04:22,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:04:22,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 01:04:23,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:04:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:04:23,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:04:23,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:04:23,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:04:23,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:04:23,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 01:04:23,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:04:23,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:04:23,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:04:23,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:04:23,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:04:23,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:04:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:04:23,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:04:23,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:04:23,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:04:23,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:04:23,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 01:04:23,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:04:23,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:04:23,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:04:23,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:04:23,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:04:23,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-27 01:04:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:04:23,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:04:23,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:04:23,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:04:23,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:04:23,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:04:23,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:04:23,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 01:04:23,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 01:04:23,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-27 01:04:23,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:04:23,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:04:23,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:04:23,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:04:23,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:04:23,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 01:04:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:04:23,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:04:23,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:04:23,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:04:23,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:04:23,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:04:23,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:04:23,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:04:23,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 01:04:23,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:04:23,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:04:23,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:04:23,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1296452521] [2020-10-27 01:04:23,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:04:23,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 01:04:23,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590787133] [2020-10-27 01:04:23,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 01:04:23,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:04:23,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 01:04:23,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 01:04:23,355 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 4 states. [2020-10-27 01:04:23,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:04:23,832 INFO L93 Difference]: Finished difference Result 215 states and 335 transitions. [2020-10-27 01:04:23,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 01:04:23,833 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-10-27 01:04:23,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:04:23,845 INFO L225 Difference]: With dead ends: 215 [2020-10-27 01:04:23,845 INFO L226 Difference]: Without dead ends: 105 [2020-10-27 01:04:23,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:04:23,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-27 01:04:23,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-10-27 01:04:23,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-27 01:04:23,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 127 transitions. [2020-10-27 01:04:23,941 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 127 transitions. Word has length 35 [2020-10-27 01:04:23,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:04:23,942 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 127 transitions. [2020-10-27 01:04:23,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 01:04:23,942 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 127 transitions. [2020-10-27 01:04:23,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-27 01:04:23,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:04:23,944 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:04:23,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:04:23,944 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:04:23,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:04:23,945 INFO L82 PathProgramCache]: Analyzing trace with hash 2115574848, now seen corresponding path program 1 times [2020-10-27 01:04:23,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:04:23,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182634982] [2020-10-27 01:04:23,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:04:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 01:04:24,000 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 01:04:24,000 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 01:04:24,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:04:24,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:04:24 BoogieIcfgContainer [2020-10-27 01:04:24,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:04:24,032 INFO L168 Benchmark]: Toolchain (without parser) took 3567.83 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 70.8 MB in the end (delta: 55.3 MB). Peak memory consumption was 55.9 MB. Max. memory is 8.0 GB. [2020-10-27 01:04:24,033 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 151.0 MB. Free memory is still 123.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:04:24,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 472.27 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 111.3 MB in the end (delta: 14.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-27 01:04:24,037 INFO L168 Benchmark]: Boogie Preprocessor took 136.11 ms. Allocated memory is still 151.0 MB. Free memory was 111.3 MB in the beginning and 108.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 01:04:24,037 INFO L168 Benchmark]: RCFGBuilder took 977.14 ms. Allocated memory is still 151.0 MB. Free memory was 108.4 MB in the beginning and 99.5 MB in the end (delta: 8.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-10-27 01:04:24,038 INFO L168 Benchmark]: TraceAbstraction took 1970.39 ms. Allocated memory is still 151.0 MB. Free memory was 98.9 MB in the beginning and 70.8 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.6 MB. Max. memory is 8.0 GB. [2020-10-27 01:04:24,050 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 151.0 MB. Free memory is still 123.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 472.27 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 111.3 MB in the end (delta: 14.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 136.11 ms. Allocated memory is still 151.0 MB. Free memory was 111.3 MB in the beginning and 108.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 977.14 ms. Allocated memory is still 151.0 MB. Free memory was 108.4 MB in the beginning and 99.5 MB in the end (delta: 8.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1970.39 ms. Allocated memory is still 151.0 MB. Free memory was 98.9 MB in the beginning and 70.8 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 213, overapproximation of someBinaryArithmeticFLOAToperation at line 120, overapproximation of bitwiseAnd at line 98. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L234] float x = 0.0f / 0.0f; [L235] float y = __VERIFIER_nondet_float(); [L237] CALL isfinite_float(y) [L217] __int32_t ix; [L219] ieee_float_shape_type gf_u; [L220] gf_u.value = (x) [L221] EXPR gf_u.word [L221] (ix) = gf_u.word [L223] ix &= 0x7fffffff [L224] return (((ix) < 0x7f800000L)); [L237] RET isfinite_float(y) [L237] COND TRUE isfinite_float(y) [L238] CALL, EXPR __ieee754_hypotf(x, y) [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; [L88] ieee_float_shape_type gf_u; [L89] gf_u.value = (x) [L90] EXPR gf_u.word [L90] (ha) = gf_u.word [L92] ha &= 0x7fffffffL [L94] ieee_float_shape_type gf_u; [L95] gf_u.value = (y) [L96] EXPR gf_u.word [L96] (hb) = gf_u.word [L98] hb &= 0x7fffffffL [L99] COND TRUE hb > ha [L100] a = y [L101] b = x [L102] j = ha [L103] ha = hb [L104] hb = j [L110] ieee_float_shape_type sf_u; [L111] sf_u.word = (ha) [L112] EXPR sf_u.value [L112] (a) = sf_u.value [L115] ieee_float_shape_type sf_u; [L116] sf_u.word = (hb) [L117] EXPR sf_u.value [L117] (b) = sf_u.value [L119] COND TRUE (ha - hb) > 0xf000000L [L120] return a + b; [L238] RET, EXPR __ieee754_hypotf(x, y) [L238] float res = __ieee754_hypotf(x, y); [L240] CALL, EXPR isnan_float(res) [L213] return x != x; [L240] RET, EXPR isnan_float(res) [L240] COND TRUE !isnan_float(res) [L241] CALL reach_error() [L3] __assert_fail("0", "float_req_bl_1271a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 113 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 129 SDtfs, 14 SDslu, 105 SDs, 0 SdLazy, 135 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred 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, 0.9s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 3196 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...