/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:16:18,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:16:18,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:16:18,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:16:18,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:16:18,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:16:18,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:16:18,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:16:18,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:16:18,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:16:18,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:16:18,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:16:18,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:16:18,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:16:18,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:16:18,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:16:18,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:16:18,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:16:18,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:16:18,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:16:18,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:16:18,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:16:18,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:16:18,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:16:18,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:16:18,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:16:18,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:16:18,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:16:18,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:16:18,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:16:18,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:16:18,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:16:18,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:16:18,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:16:18,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:16:18,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:16:18,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:16:18,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:16:18,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:16:18,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:16:18,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:16:18,999 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 [2020-09-25 04:16:19,058 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:16:19,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:16:19,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:16:19,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:16:19,063 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:16:19,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:16:19,064 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:16:19,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:16:19,064 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:16:19,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:16:19,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:16:19,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:16:19,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:16:19,066 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:16:19,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:16:19,066 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:16:19,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:16:19,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:16:19,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:16:19,067 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:16:19,068 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:16:19,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:16:19,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:16:19,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:16:19,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:16:19,069 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:16:19,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:16:19,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:16:19,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:16:19,070 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:16:19,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:16:19,544 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:16:19,548 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:16:19,549 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:16:19,550 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:16:19,551 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-09-25 04:16:19,637 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1cfe71e1e/6c74c162bbfb4cc8977d8095844bfb9f/FLAG83d6eb7f7 [2020-09-25 04:16:20,181 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:16:20,182 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-09-25 04:16:20,190 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1cfe71e1e/6c74c162bbfb4cc8977d8095844bfb9f/FLAG83d6eb7f7 [2020-09-25 04:16:20,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1cfe71e1e/6c74c162bbfb4cc8977d8095844bfb9f [2020-09-25 04:16:20,515 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:16:20,522 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:16:20,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:16:20,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:16:20,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:16:20,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:16:20" (1/1) ... [2020-09-25 04:16:20,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:20, skipping insertion in model container [2020-09-25 04:16:20,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:16:20" (1/1) ... [2020-09-25 04:16:20,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:16:20,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:16:20,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:16:20,873 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:16:21,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:16:21,049 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:16:21,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:21 WrapperNode [2020-09-25 04:16:21,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:16:21,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:16:21,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:16:21,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:16:21,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:21" (1/1) ... [2020-09-25 04:16:21,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:21" (1/1) ... [2020-09-25 04:16:21,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:21" (1/1) ... [2020-09-25 04:16:21,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:21" (1/1) ... [2020-09-25 04:16:21,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:21" (1/1) ... [2020-09-25 04:16:21,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:21" (1/1) ... [2020-09-25 04:16:21,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:21" (1/1) ... [2020-09-25 04:16:21,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:16:21,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:16:21,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:16:21,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:16:21,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:21" (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 [2020-09-25 04:16:21,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:16:21,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:16:21,198 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-09-25 04:16:21,198 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-09-25 04:16:21,199 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-09-25 04:16:21,199 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:16:21,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:16:21,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-09-25 04:16:21,199 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-09-25 04:16:21,199 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-09-25 04:16:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:16:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-25 04:16:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:16:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:16:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-25 04:16:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:16:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-09-25 04:16:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:16:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:16:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-09-25 04:16:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:16:21,945 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:16:21,945 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-09-25 04:16:21,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:16:21 BoogieIcfgContainer [2020-09-25 04:16:21,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:16:21,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:16:21,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:16:21,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:16:21,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:16:20" (1/3) ... [2020-09-25 04:16:21,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9cd5814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:16:21, skipping insertion in model container [2020-09-25 04:16:21,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:21" (2/3) ... [2020-09-25 04:16:21,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9cd5814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:16:21, skipping insertion in model container [2020-09-25 04:16:21,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:16:21" (3/3) ... [2020-09-25 04:16:21,965 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-09-25 04:16:21,976 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:16:21,990 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:16:22,013 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:16:22,054 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:16:22,054 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:16:22,054 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:16:22,054 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:16:22,054 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:16:22,055 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:16:22,055 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:16:22,055 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:16:22,080 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2020-09-25 04:16:22,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 04:16:22,091 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:16:22,092 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:16:22,093 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:16:22,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:16:22,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1076720203, now seen corresponding path program 1 times [2020-09-25 04:16:22,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:16:22,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635328560] [2020-09-25 04:16:22,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:16:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:22,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:22,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:22,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:22,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:22,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 04:16:22,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:16:22,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-09-25 04:16:22,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:22,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:22,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:16:22,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 04:16:22,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:16:22,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:16:22,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:16:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:22,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:22,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:22,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:16:22,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:16:22,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:16:22,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:22,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:22,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:16:22,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:16:22,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:16:22,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 17 [2020-09-25 04:16:22,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 04:16:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:22,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:22,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:22,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:16:22,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:16:22,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 04:16:22,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:22,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:22,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:16:22,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 04:16:22,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:16:22,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:16:22,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 04:16:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:22,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:22,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:22,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:22,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:22,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 04:16:22,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:16:22,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:16:22,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:22,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:22,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:16:22,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 04:16:22,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:16:22,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:16:22,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:16:22,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635328560] [2020-09-25 04:16:22,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:16:22,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:16:22,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512287782] [2020-09-25 04:16:22,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:16:22,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:16:22,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:16:22,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:16:22,917 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2020-09-25 04:16:23,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:16:23,469 INFO L93 Difference]: Finished difference Result 414 states and 503 transitions. [2020-09-25 04:16:23,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:16:23,471 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-25 04:16:23,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:16:23,487 INFO L225 Difference]: With dead ends: 414 [2020-09-25 04:16:23,488 INFO L226 Difference]: Without dead ends: 209 [2020-09-25 04:16:23,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:16:23,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-09-25 04:16:23,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-09-25 04:16:23,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-09-25 04:16:23,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 235 transitions. [2020-09-25 04:16:23,562 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 235 transitions. Word has length 51 [2020-09-25 04:16:23,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:16:23,563 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 235 transitions. [2020-09-25 04:16:23,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:16:23,563 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 235 transitions. [2020-09-25 04:16:23,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 04:16:23,566 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:16:23,567 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:16:23,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:16:23,567 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:16:23,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:16:23,568 INFO L82 PathProgramCache]: Analyzing trace with hash -484158952, now seen corresponding path program 1 times [2020-09-25 04:16:23,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:16:23,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1706990479] [2020-09-25 04:16:23,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:16:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 04:16:23,652 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 04:16:23,652 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 04:16:23,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:16:23,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:16:23 BoogieIcfgContainer [2020-09-25 04:16:23,682 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:16:23,686 INFO L168 Benchmark]: Toolchain (without parser) took 3167.19 ms. Allocated memory was 147.8 MB in the beginning and 233.8 MB in the end (delta: 86.0 MB). Free memory was 103.1 MB in the beginning and 116.3 MB in the end (delta: -13.2 MB). Peak memory consumption was 72.7 MB. Max. memory is 7.1 GB. [2020-09-25 04:16:23,686 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 04:16:23,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 527.21 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 102.5 MB in the beginning and 179.6 MB in the end (delta: -77.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2020-09-25 04:16:23,688 INFO L168 Benchmark]: Boogie Preprocessor took 79.88 ms. Allocated memory is still 204.5 MB. Free memory was 179.6 MB in the beginning and 176.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-09-25 04:16:23,689 INFO L168 Benchmark]: RCFGBuilder took 822.38 ms. Allocated memory is still 204.5 MB. Free memory was 176.7 MB in the beginning and 129.6 MB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 7.1 GB. [2020-09-25 04:16:23,690 INFO L168 Benchmark]: TraceAbstraction took 1727.31 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 128.9 MB in the beginning and 116.3 MB in the end (delta: 12.6 MB). Peak memory consumption was 41.9 MB. Max. memory is 7.1 GB. [2020-09-25 04:16:23,694 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 527.21 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 102.5 MB in the beginning and 179.6 MB in the end (delta: -77.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 79.88 ms. Allocated memory is still 204.5 MB. Free memory was 179.6 MB in the beginning and 176.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 822.38 ms. Allocated memory is still 204.5 MB. Free memory was 176.7 MB in the beginning and 129.6 MB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1727.31 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 128.9 MB in the beginning and 116.3 MB in the end (delta: 12.6 MB). Peak memory consumption was 41.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 189]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 188, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L180] double y = 1.0 / 0.0; [L181] double x = __VERIFIER_nondet_double(); [L183] CALL isfinite_double(x) [L164] __int32_t hx; [L166] ieee_double_shape_type gh_u; [L167] gh_u.value = (x) [L168] EXPR gh_u.parts.msw [L168] (hx) = gh_u.parts.msw [L170] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L183] RET isfinite_double(x) [L183] COND TRUE isfinite_double(x) [L185] CALL, EXPR fmod_double(x, y) [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); [L185] RET, EXPR fmod_double(x, y) [L185] double res = fmod_double(x, y); [L188] COND TRUE res != x [L189] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 220 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 37 SDslu, 182 SDs, 0 SdLazy, 260 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred 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, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 4750 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...