/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0670.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 10:18:04,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 10:18:04,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 10:18:04,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 10:18:04,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 10:18:04,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 10:18:04,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 10:18:04,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 10:18:04,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 10:18:04,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 10:18:04,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 10:18:04,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 10:18:04,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 10:18:04,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 10:18:04,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 10:18:04,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 10:18:04,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 10:18:04,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 10:18:04,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 10:18:04,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 10:18:04,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 10:18:04,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 10:18:04,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 10:18:04,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 10:18:04,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 10:18:04,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 10:18:04,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 10:18:04,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 10:18:04,946 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 10:18:04,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 10:18:04,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 10:18:04,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 10:18:04,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 10:18:04,951 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 10:18:04,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 10:18:04,952 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 10:18:04,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 10:18:04,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 10:18:04,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 10:18:04,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 10:18:04,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 10:18:04,959 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 [2020-10-13 10:18:04,996 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 10:18:04,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 10:18:04,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 10:18:04,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 10:18:04,998 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 10:18:04,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 10:18:04,999 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 10:18:04,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 10:18:04,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 10:18:04,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 10:18:05,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 10:18:05,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 10:18:05,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 10:18:05,001 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 10:18:05,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 10:18:05,002 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 10:18:05,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 10:18:05,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 10:18:05,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 10:18:05,002 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 10:18:05,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 10:18:05,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:18:05,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 10:18:05,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 10:18:05,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 10:18:05,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 10:18:05,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 10:18:05,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 10:18:05,004 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 10:18:05,004 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 10:18:05,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 10:18:05,280 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 10:18:05,283 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 10:18:05,284 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 10:18:05,285 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 10:18:05,286 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0670.c [2020-10-13 10:18:05,341 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e21ec5eb1/f28ce5f44d7b4d7d92cfcc32e67bf5fa/FLAG579ab23b6 [2020-10-13 10:18:05,786 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 10:18:05,787 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0670.c [2020-10-13 10:18:05,795 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e21ec5eb1/f28ce5f44d7b4d7d92cfcc32e67bf5fa/FLAG579ab23b6 [2020-10-13 10:18:06,160 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e21ec5eb1/f28ce5f44d7b4d7d92cfcc32e67bf5fa [2020-10-13 10:18:06,170 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 10:18:06,171 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 10:18:06,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 10:18:06,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 10:18:06,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 10:18:06,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:18:06" (1/1) ... [2020-10-13 10:18:06,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15d64021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:06, skipping insertion in model container [2020-10-13 10:18:06,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:18:06" (1/1) ... [2020-10-13 10:18:06,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 10:18:06,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 10:18:06,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:18:06,599 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 10:18:06,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:18:06,716 INFO L208 MainTranslator]: Completed translation [2020-10-13 10:18:06,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:06 WrapperNode [2020-10-13 10:18:06,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 10:18:06,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 10:18:06,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 10:18:06,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 10:18:06,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:06" (1/1) ... [2020-10-13 10:18:06,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:06" (1/1) ... [2020-10-13 10:18:06,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:06" (1/1) ... [2020-10-13 10:18:06,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:06" (1/1) ... [2020-10-13 10:18:06,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:06" (1/1) ... [2020-10-13 10:18:06,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:06" (1/1) ... [2020-10-13 10:18:06,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:06" (1/1) ... [2020-10-13 10:18:06,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 10:18:06,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 10:18:06,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 10:18:06,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 10:18:06,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:06" (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 [2020-10-13 10:18:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 10:18:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 10:18:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-13 10:18:06,872 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-13 10:18:06,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-13 10:18:06,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-13 10:18:06,872 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 10:18:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 10:18:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-13 10:18:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-13 10:18:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 10:18:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-13 10:18:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 10:18:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 10:18:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 10:18:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-13 10:18:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-13 10:18:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-13 10:18:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-13 10:18:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 10:18:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 10:18:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-13 10:18:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 10:18:07,518 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 10:18:07,518 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-13 10:18:07,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:18:07 BoogieIcfgContainer [2020-10-13 10:18:07,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 10:18:07,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 10:18:07,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 10:18:07,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 10:18:07,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:18:06" (1/3) ... [2020-10-13 10:18:07,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c3a24f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:18:07, skipping insertion in model container [2020-10-13 10:18:07,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:06" (2/3) ... [2020-10-13 10:18:07,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c3a24f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:18:07, skipping insertion in model container [2020-10-13 10:18:07,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:18:07" (3/3) ... [2020-10-13 10:18:07,532 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0670.c [2020-10-13 10:18:07,542 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 10:18:07,550 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 10:18:07,563 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 10:18:07,588 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 10:18:07,588 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 10:18:07,588 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 10:18:07,588 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 10:18:07,588 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 10:18:07,589 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 10:18:07,589 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 10:18:07,589 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 10:18:07,609 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2020-10-13 10:18:07,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-13 10:18:07,618 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:18:07,619 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] [2020-10-13 10:18:07,619 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:18:07,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:18:07,626 INFO L82 PathProgramCache]: Analyzing trace with hash -598334976, now seen corresponding path program 1 times [2020-10-13 10:18:07,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:18:07,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902360328] [2020-10-13 10:18:07,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:18:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:18:07,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:18:07,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:18:08,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:18:08,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 10:18:08,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:18:08,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 420 [2020-10-13 10:18:08,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:18:08,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:18:08,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-13 10:18:08,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:18:08,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 10:18:08,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:18:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:18:08,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:18:08,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:18:08,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:18:08,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:18:08,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 10:18:08,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:18:08,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:18:08,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:18:08,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:18:08,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:18:08,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:18:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:18:08,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:18:08,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:18:08,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:18:08,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:18:08,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:18:08,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:18:08,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:18:08,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:18:08,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:18:08,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:18:08,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 10:18:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:18:08,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:18:08,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:18:08,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:18:08,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 10:18:08,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:18:08,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 10:18:08,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:18:08,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:18:08,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 10:18:08,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:18:08,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:18:08,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 10:18:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:18:08,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:18:08,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:18:08,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:18:08,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:18:08,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:18:08,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:18:08,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:18:08,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:18:08,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:18:08,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:18:08,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 10:18:08,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902360328] [2020-10-13 10:18:08,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:18:08,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 10:18:08,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949685333] [2020-10-13 10:18:08,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 10:18:08,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:18:08,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 10:18:08,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 10:18:08,422 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 4 states. [2020-10-13 10:18:08,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:18:08,845 INFO L93 Difference]: Finished difference Result 215 states and 335 transitions. [2020-10-13 10:18:08,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 10:18:08,847 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-10-13 10:18:08,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:18:08,859 INFO L225 Difference]: With dead ends: 215 [2020-10-13 10:18:08,859 INFO L226 Difference]: Without dead ends: 108 [2020-10-13 10:18:08,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:18:08,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-13 10:18:08,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-13 10:18:08,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-13 10:18:08,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 150 transitions. [2020-10-13 10:18:08,920 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 150 transitions. Word has length 30 [2020-10-13 10:18:08,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:18:08,922 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 150 transitions. [2020-10-13 10:18:08,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 10:18:08,922 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 150 transitions. [2020-10-13 10:18:08,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-13 10:18:08,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:18:08,925 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] [2020-10-13 10:18:08,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 10:18:08,926 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:18:08,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:18:08,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1940139543, now seen corresponding path program 1 times [2020-10-13 10:18:08,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:18:08,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1693400291] [2020-10-13 10:18:08,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:18:08,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 10:18:08,994 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 10:18:08,995 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 10:18:09,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 10:18:09,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:18:09 BoogieIcfgContainer [2020-10-13 10:18:09,024 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 10:18:09,026 INFO L168 Benchmark]: Toolchain (without parser) took 2854.35 ms. Allocated memory was 141.6 MB in the beginning and 234.9 MB in the end (delta: 93.3 MB). Free memory was 102.7 MB in the beginning and 100.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 95.2 MB. Max. memory is 7.1 GB. [2020-10-13 10:18:09,028 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-13 10:18:09,030 INFO L168 Benchmark]: CACSL2BoogieTranslator took 545.58 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 102.5 MB in the beginning and 177.1 MB in the end (delta: -74.6 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-10-13 10:18:09,030 INFO L168 Benchmark]: Boogie Preprocessor took 85.13 ms. Allocated memory is still 204.5 MB. Free memory was 177.1 MB in the beginning and 173.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-10-13 10:18:09,032 INFO L168 Benchmark]: RCFGBuilder took 720.10 ms. Allocated memory is still 204.5 MB. Free memory was 173.7 MB in the beginning and 128.5 MB in the end (delta: 45.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 7.1 GB. [2020-10-13 10:18:09,033 INFO L168 Benchmark]: TraceAbstraction took 1498.87 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 128.5 MB in the beginning and 100.9 MB in the end (delta: 27.6 MB). Peak memory consumption was 58.1 MB. Max. memory is 7.1 GB. [2020-10-13 10:18:09,043 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 545.58 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 102.5 MB in the beginning and 177.1 MB in the end (delta: -74.6 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.13 ms. Allocated memory is still 204.5 MB. Free memory was 177.1 MB in the beginning and 173.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 720.10 ms. Allocated memory is still 204.5 MB. Free memory was 173.7 MB in the beginning and 128.5 MB in the end (delta: 45.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1498.87 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 128.5 MB in the beginning and 100.9 MB in the end (delta: 27.6 MB). Peak memory consumption was 58.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 262]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of someBinaryDOUBLEComparisonOperation at line 245. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L253] double x = __VERIFIER_nondet_double(); [L254] double y = __VERIFIER_nondet_double(); [L256] CALL, EXPR isnan_double(x) [L245] return x != x; [L256] RET, EXPR isnan_double(x) [L256] isnan_double(x) || isnan_double(y) [L256] COND TRUE isnan_double(x) || isnan_double(y) [L258] CALL, EXPR __ieee754_atan2(y, x) [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; [L258] RET, EXPR __ieee754_atan2(y, x) [L258] double res = __ieee754_atan2(y, x); [L261] CALL, EXPR isnan_double(res) [L245] return x != x; [L261] RET, EXPR isnan_double(res) [L261] COND TRUE !isnan_double(res) [L262] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 113 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 150 SDtfs, 28 SDslu, 126 SDs, 0 SdLazy, 144 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 2755 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...