/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=DEEPEST --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_0670.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:44:10,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:44:10,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:44:10,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:44:10,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:44:10,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:44:10,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:44:10,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:44:10,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:44:10,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:44:10,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:44:10,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:44:10,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:44:10,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:44:10,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:44:10,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:44:10,806 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:44:10,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:44:10,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:44:10,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:44:10,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:44:10,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:44:10,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:44:10,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:44:10,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:44:10,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:44:10,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:44:10,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:44:10,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:44:10,847 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:44:10,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:44:10,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:44:10,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:44:10,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:44:10,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:44:10,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:44:10,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:44:10,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:44:10,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:44:10,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:44:10,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:44:10,857 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 19:44:10,912 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:44:10,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:44:10,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:44:10,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:44:10,916 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:44:10,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:44:10,917 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:44:10,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:44:10,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:44:10,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:44:10,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:44:10,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:44:10,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:44:10,920 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:44:10,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:44:10,920 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:44:10,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:44:10,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:44:10,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:44:10,921 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:44:10,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:44:10,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:44:10,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:44:10,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:44:10,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:44:10,923 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:44:10,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:44:10,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:44:10,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:44:10,924 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:44:11,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:44:11,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:44:11,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:44:11,412 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:44:11,413 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:44:11,414 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0670.c [2020-10-27 19:44:11,514 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d767350f4/62c6ed92679141e093d1bd80714c9041/FLAG4f6ce81b9 [2020-10-27 19:44:12,194 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:44:12,196 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_0670.c [2020-10-27 19:44:12,219 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d767350f4/62c6ed92679141e093d1bd80714c9041/FLAG4f6ce81b9 [2020-10-27 19:44:12,538 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d767350f4/62c6ed92679141e093d1bd80714c9041 [2020-10-27 19:44:12,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:44:12,550 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:44:12,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:44:12,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:44:12,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:44:12,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:44:12" (1/1) ... [2020-10-27 19:44:12,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f3c1806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:12, skipping insertion in model container [2020-10-27 19:44:12,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:44:12" (1/1) ... [2020-10-27 19:44:12,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:44:12,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:44:12,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:44:12,848 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:44:12,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:44:12,937 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:44:12,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:12 WrapperNode [2020-10-27 19:44:12,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:44:12,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:44:12,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:44:12,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:44:12,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:12" (1/1) ... [2020-10-27 19:44:12,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:12" (1/1) ... [2020-10-27 19:44:12,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:12" (1/1) ... [2020-10-27 19:44:12,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:12" (1/1) ... [2020-10-27 19:44:13,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:12" (1/1) ... [2020-10-27 19:44:13,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:12" (1/1) ... [2020-10-27 19:44:13,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:12" (1/1) ... [2020-10-27 19:44:13,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:44:13,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:44:13,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:44:13,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:44:13,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:12" (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 19:44:13,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:44:13,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:44:13,153 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:44:13,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-10-27 19:44:13,154 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-10-27 19:44:13,154 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2020-10-27 19:44:13,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2020-10-27 19:44:13,154 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:44:13,155 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:44:13,155 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:44:13,155 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:44:13,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:44:13,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-27 19:44:13,156 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-10-27 19:44:13,156 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-10-27 19:44:13,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:44:13,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:44:13,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:44:13,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:44:13,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:44:13,157 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2020-10-27 19:44:13,157 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2020-10-27 19:44:13,157 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:44:13,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:44:13,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:44:13,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 19:44:13,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:44:13,935 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:44:13,935 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-27 19:44:13,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:44:13 BoogieIcfgContainer [2020-10-27 19:44:13,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:44:13,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:44:13,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:44:13,943 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:44:13,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:44:12" (1/3) ... [2020-10-27 19:44:13,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3718d268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:44:13, skipping insertion in model container [2020-10-27 19:44:13,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:12" (2/3) ... [2020-10-27 19:44:13,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3718d268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:44:13, skipping insertion in model container [2020-10-27 19:44:13,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:44:13" (3/3) ... [2020-10-27 19:44:13,947 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0670.c [2020-10-27 19:44:13,959 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:44:13,965 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:44:13,978 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:44:14,007 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:44:14,008 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:44:14,008 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:44:14,008 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:44:14,008 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:44:14,008 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:44:14,008 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:44:14,008 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:44:14,032 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states. [2020-10-27 19:44:14,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-27 19:44:14,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:44:14,041 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] [2020-10-27 19:44:14,042 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:44:14,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:44:14,049 INFO L82 PathProgramCache]: Analyzing trace with hash -2142318848, now seen corresponding path program 1 times [2020-10-27 19:44:14,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:44:14,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482463244] [2020-10-27 19:44:14,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:44:14,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:44:14,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:44:14,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:44:14,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:44:14,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 19:44:14,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:44:14,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-10-27 19:44:14,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:44:14,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:44:14,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-27 19:44:14,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:44:14,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 19:44:14,857 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 19:44:14,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:44:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:44:14,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:44:14,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:44:14,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:44:14,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:44:14,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-27 19:44:14,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:44:14,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:44:14,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:44:14,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:44:14,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:44:15,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:44:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:44:15,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:44:15,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:44:15,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:44:15,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:44:15,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 19:44:15,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:44:15,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:44:15,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:44:15,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:44:15,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:44:15,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 19:44:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:44:15,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:44:15,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:44:15,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:44:15,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 19:44:15,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:44:15,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 19:44:15,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:44:15,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:44:15,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:44:15,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:44:15,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:44:15,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 19:44:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:44:15,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:44:15,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:44:15,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:44:15,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:44:15,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 19:44:15,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:44:15,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:44:15,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:44:15,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:44:15,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:44:15,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 19:44:15,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1482463244] [2020-10-27 19:44:15,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:44:15,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:44:15,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154030290] [2020-10-27 19:44:15,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:44:15,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:44:15,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:44:15,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:44:15,167 INFO L87 Difference]: Start difference. First operand 115 states. Second operand 4 states. [2020-10-27 19:44:15,378 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 19:44:15,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:44:15,973 INFO L93 Difference]: Finished difference Result 216 states and 333 transitions. [2020-10-27 19:44:15,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:44:15,975 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-10-27 19:44:15,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:44:15,987 INFO L225 Difference]: With dead ends: 216 [2020-10-27 19:44:15,987 INFO L226 Difference]: Without dead ends: 107 [2020-10-27 19:44:15,992 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:44:16,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-27 19:44:16,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-10-27 19:44:16,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-27 19:44:16,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 149 transitions. [2020-10-27 19:44:16,072 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 149 transitions. Word has length 31 [2020-10-27 19:44:16,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:44:16,074 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 149 transitions. [2020-10-27 19:44:16,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:44:16,074 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 149 transitions. [2020-10-27 19:44:16,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-27 19:44:16,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:44:16,077 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, 1] [2020-10-27 19:44:16,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:44:16,078 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:44:16,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:44:16,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1800834359, now seen corresponding path program 1 times [2020-10-27 19:44:16,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:44:16,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1094036350] [2020-10-27 19:44:16,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:44:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:44:16,148 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:44:16,148 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:44:16,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:44:16,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:44:16 BoogieIcfgContainer [2020-10-27 19:44:16,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:44:16,185 INFO L168 Benchmark]: Toolchain (without parser) took 3637.84 ms. Allocated memory was 151.0 MB in the beginning and 195.0 MB in the end (delta: 44.0 MB). Free memory was 125.8 MB in the beginning and 162.4 MB in the end (delta: -36.6 MB). Peak memory consumption was 8.3 MB. Max. memory is 8.0 GB. [2020-10-27 19:44:16,186 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory was 123.2 MB in the beginning and 123.1 MB in the end (delta: 80.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:44:16,187 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.24 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 111.3 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 19:44:16,188 INFO L168 Benchmark]: Boogie Preprocessor took 116.64 ms. Allocated memory is still 151.0 MB. Free memory was 111.3 MB in the beginning and 108.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:44:16,189 INFO L168 Benchmark]: RCFGBuilder took 878.50 ms. Allocated memory is still 151.0 MB. Free memory was 108.4 MB in the beginning and 102.0 MB in the end (delta: 6.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-27 19:44:16,190 INFO L168 Benchmark]: TraceAbstraction took 2242.05 ms. Allocated memory was 151.0 MB in the beginning and 195.0 MB in the end (delta: 44.0 MB). Free memory was 101.5 MB in the beginning and 162.4 MB in the end (delta: -60.9 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:44:16,194 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory was 123.2 MB in the beginning and 123.1 MB in the end (delta: 80.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 384.24 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 111.3 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 116.64 ms. Allocated memory is still 151.0 MB. Free memory was 111.3 MB in the beginning and 108.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 878.50 ms. Allocated memory is still 151.0 MB. Free memory was 108.4 MB in the beginning and 102.0 MB in the end (delta: 6.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2242.05 ms. Allocated memory was 151.0 MB in the beginning and 195.0 MB in the end (delta: 44.0 MB). Free memory was 101.5 MB in the beginning and 162.4 MB in the end (delta: -60.9 MB). There was no memory consumed. 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 15, overapproximation of someUnaryDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 138, overapproximation of someBinaryArithmeticFLOAToperation at line 140. Possible FailurePath: [L32-L37] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L39-L44] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L46-L50] 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, }; [L52-L54] 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; [L120-L121] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; [L226] float x = __VERIFIER_nondet_float(); [L227] float y = __VERIFIER_nondet_float(); [L229] CALL, EXPR isnan_float(x) [L15] return x != x; [L229] RET, EXPR isnan_float(x) [L229] isnan_float(x) || isnan_float(y) [L229] COND TRUE isnan_float(x) || isnan_float(y) [L232] CALL, EXPR __ieee754_atan2f(y, x) [L124] float z; [L125] __int32_t k, m, hx, hy, ix, iy; [L128] ieee_float_shape_type gf_u; [L129] gf_u.value = (x) [L130] EXPR gf_u.word [L130] (hx) = gf_u.word [L132] ix = hx & 0x7fffffff [L134] ieee_float_shape_type gf_u; [L135] gf_u.value = (y) [L136] EXPR gf_u.word [L136] (hy) = gf_u.word [L138] iy = hy & 0x7fffffff [L139] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L140] return x + y; [L232] RET, EXPR __ieee754_atan2f(y, x) [L232] float res = __ieee754_atan2f(y, x); [L235] CALL, EXPR isnan_float(res) [L15] return x != x; [L235] RET, EXPR isnan_float(res) [L235] COND TRUE !isnan_float(res) [L236] CALL reach_error() [L3] __assert_fail("0", "float_req_bl_0670.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 115 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.1s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 149 SDtfs, 30 SDslu, 124 SDs, 0 SdLazy, 140 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred 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, 0.8s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 3420 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...