/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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 [2020-10-29 09:08:12,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:08:12,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:08:12,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:08:12,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:08:12,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:08:12,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:08:12,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:08:12,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:08:12,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:08:12,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:08:12,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:08:12,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:08:12,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:08:12,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:08:12,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:08:12,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:08:12,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:08:12,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:08:12,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:08:12,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:08:12,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:08:12,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:08:12,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:08:12,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:08:12,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:08:12,595 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:08:12,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:08:12,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:08:12,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:08:12,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:08:12,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:08:12,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:08:12,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:08:12,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:08:12,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:08:12,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:08:12,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:08:12,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:08:12,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:08:12,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:08:12,631 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 [2020-10-29 09:08:12,692 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:08:12,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:08:12,694 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:08:12,696 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:08:12,696 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:08:12,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:08:12,697 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:08:12,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:08:12,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:08:12,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:08:12,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:08:12,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:08:12,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:08:12,698 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:08:12,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:08:12,698 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:08:12,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:08:12,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:08:12,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:08:12,701 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:08:12,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:08:12,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:08:12,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:08:12,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:08:12,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:08:12,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:08:12,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:08:12,702 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:08:12,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:08:12,703 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:08:13,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:08:13,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:08:13,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:08:13,227 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:08:13,228 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:08:13,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0670.c [2020-10-29 09:08:13,323 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60a79bca1/1034578b802442c8b01f3c86b5483a60/FLAG49c41f3cd [2020-10-29 09:08:14,030 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:08:14,030 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_0670.c [2020-10-29 09:08:14,052 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60a79bca1/1034578b802442c8b01f3c86b5483a60/FLAG49c41f3cd [2020-10-29 09:08:14,334 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60a79bca1/1034578b802442c8b01f3c86b5483a60 [2020-10-29 09:08:14,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:08:14,351 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:08:14,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:08:14,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:08:14,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:08:14,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:08:14" (1/1) ... [2020-10-29 09:08:14,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@113407e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:08:14, skipping insertion in model container [2020-10-29 09:08:14,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:08:14" (1/1) ... [2020-10-29 09:08:14,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:08:14,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:08:14,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:08:14,699 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:08:14,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:08:14,820 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:08:14,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:08:14 WrapperNode [2020-10-29 09:08:14,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:08:14,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:08:14,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:08:14,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:08:14,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:08:14" (1/1) ... [2020-10-29 09:08:14,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:08:14" (1/1) ... [2020-10-29 09:08:14,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:08:14" (1/1) ... [2020-10-29 09:08:14,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:08:14" (1/1) ... [2020-10-29 09:08:14,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:08:14" (1/1) ... [2020-10-29 09:08:14,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:08:14" (1/1) ... [2020-10-29 09:08:14,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:08:14" (1/1) ... [2020-10-29 09:08:14,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:08:14,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:08:14,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:08:14,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:08:14,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:08:14" (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 [2020-10-29 09:08:15,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:08:15,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:08:15,063 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:08:15,063 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-10-29 09:08:15,064 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-10-29 09:08:15,064 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2020-10-29 09:08:15,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2020-10-29 09:08:15,064 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:08:15,065 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:08:15,065 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:08:15,065 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:08:15,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:08:15,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-29 09:08:15,065 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-10-29 09:08:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-10-29 09:08:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-29 09:08:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:08:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:08:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:08:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-29 09:08:15,067 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2020-10-29 09:08:15,067 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2020-10-29 09:08:15,067 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:08:15,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:08:15,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:08:15,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-29 09:08:15,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:08:16,032 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:08:16,033 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-29 09:08:16,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:08:16 BoogieIcfgContainer [2020-10-29 09:08:16,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:08:16,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:08:16,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:08:16,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:08:16,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:08:14" (1/3) ... [2020-10-29 09:08:16,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2eb0dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:08:16, skipping insertion in model container [2020-10-29 09:08:16,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:08:14" (2/3) ... [2020-10-29 09:08:16,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2eb0dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:08:16, skipping insertion in model container [2020-10-29 09:08:16,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:08:16" (3/3) ... [2020-10-29 09:08:16,045 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0670.c [2020-10-29 09:08:16,057 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:08:16,063 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:08:16,078 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:08:16,114 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:08:16,114 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:08:16,114 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:08:16,114 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:08:16,115 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:08:16,115 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:08:16,115 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:08:16,119 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:08:16,177 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states. [2020-10-29 09:08:16,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-29 09:08:16,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:08:16,200 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] [2020-10-29 09:08:16,203 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:08:16,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:08:16,216 INFO L82 PathProgramCache]: Analyzing trace with hash -2142318848, now seen corresponding path program 1 times [2020-10-29 09:08:16,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:08:16,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846115436] [2020-10-29 09:08:16,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:08:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:08:16,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:08:16,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:08:16,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:08:16,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-29 09:08:16,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:08:16,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 348 [2020-10-29 09:08:16,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:08:16,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:08:16,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:08:16,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-29 09:08:16,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:08:16,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-29 09:08:16,966 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-29 09:08:16,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:08:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:08:16,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:08:17,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:08:17,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:08:17,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:08:17,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 09:08:17,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:08:17,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:08:17,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:08:17,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:08:17,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:08:17,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:08:17,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:08:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:08:17,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:08:17,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:08:17,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:08:17,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:08:17,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:08:17,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:08:17,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:08:17,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:08:17,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:08:17,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:08:17,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:08:17,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 09:08:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:08:17,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:08:17,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:08:17,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:08:17,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 09:08:17,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:08:17,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 09:08:17,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:08:17,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:08:17,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:08:17,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:08:17,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:08:17,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:08:17,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 09:08:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:08:17,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:08:17,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:08:17,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:08:17,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:08:17,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 09:08:17,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:08:17,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:08:17,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:08:17,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:08:17,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:08:17,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:08:17,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 09:08:17,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1846115436] [2020-10-29 09:08:17,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:08:17,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 09:08:17,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782570987] [2020-10-29 09:08:17,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 09:08:17,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:08:17,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 09:08:17,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 09:08:17,155 INFO L87 Difference]: Start difference. First operand 115 states. Second operand 4 states. [2020-10-29 09:08:17,301 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 09:08:17,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:08:17,737 INFO L93 Difference]: Finished difference Result 216 states and 333 transitions. [2020-10-29 09:08:17,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-29 09:08:17,739 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-10-29 09:08:17,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:08:17,751 INFO L225 Difference]: With dead ends: 216 [2020-10-29 09:08:17,751 INFO L226 Difference]: Without dead ends: 107 [2020-10-29 09:08:17,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 09:08:17,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-29 09:08:17,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-10-29 09:08:17,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-29 09:08:17,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 149 transitions. [2020-10-29 09:08:17,815 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 149 transitions. Word has length 31 [2020-10-29 09:08:17,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:08:17,816 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 149 transitions. [2020-10-29 09:08:17,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 09:08:17,817 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 149 transitions. [2020-10-29 09:08:17,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-29 09:08:17,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:08:17,820 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] [2020-10-29 09:08:17,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:08:17,821 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:08:17,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:08:17,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1800834359, now seen corresponding path program 1 times [2020-10-29 09:08:17,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:08:17,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246218158] [2020-10-29 09:08:17,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:08:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 09:08:17,940 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 09:08:17,941 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 09:08:17,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 09:08:17,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 09:08:17 BoogieIcfgContainer [2020-10-29 09:08:17,975 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 09:08:17,979 INFO L168 Benchmark]: Toolchain (without parser) took 3636.18 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 125.6 MB in the beginning and 153.0 MB in the end (delta: -27.4 MB). Peak memory consumption was 82.3 MB. Max. memory is 8.0 GB. [2020-10-29 09:08:17,980 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 151.0 MB. Free memory is still 124.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:08:17,982 INFO L168 Benchmark]: CACSL2BoogieTranslator took 465.37 ms. Allocated memory is still 151.0 MB. Free memory was 125.0 MB in the beginning and 110.5 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-29 09:08:17,983 INFO L168 Benchmark]: Boogie Preprocessor took 125.19 ms. Allocated memory is still 151.0 MB. Free memory was 110.5 MB in the beginning and 107.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-29 09:08:17,986 INFO L168 Benchmark]: RCFGBuilder took 1086.21 ms. Allocated memory is still 151.0 MB. Free memory was 107.6 MB in the beginning and 104.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 15.1 MB. Max. memory is 8.0 GB. [2020-10-29 09:08:17,989 INFO L168 Benchmark]: TraceAbstraction took 1938.06 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 104.4 MB in the beginning and 153.0 MB in the end (delta: -48.7 MB). Peak memory consumption was 62.0 MB. Max. memory is 8.0 GB. [2020-10-29 09:08:18,000 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 151.0 MB. Free memory is still 124.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 465.37 ms. Allocated memory is still 151.0 MB. Free memory was 125.0 MB in the beginning and 110.5 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 125.19 ms. Allocated memory is still 151.0 MB. Free memory was 110.5 MB in the beginning and 107.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1086.21 ms. Allocated memory is still 151.0 MB. Free memory was 107.6 MB in the beginning and 104.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 15.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1938.06 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 104.4 MB in the beginning and 153.0 MB in the end (delta: -48.7 MB). Peak memory consumption was 62.0 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 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: 1.8s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.6s, 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, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s 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, 0.6s 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...