/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=0.4 --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 05:24:52,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:24:52,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:24:52,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:24:52,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:24:52,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:24:52,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:24:52,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:24:52,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:24:52,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:24:52,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:24:52,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:24:52,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:24:52,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:24:52,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:24:52,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:24:52,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:24:52,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:24:52,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:24:52,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:24:52,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:24:52,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:24:52,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:24:52,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:24:52,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:24:52,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:24:52,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:24:52,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:24:52,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:24:52,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:24:52,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:24:52,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:24:52,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:24:52,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:24:52,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:24:52,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:24:52,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:24:52,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:24:52,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:24:52,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:24:52,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:24:52,454 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 05:24:52,511 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:24:52,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:24:52,513 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:24:52,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:24:52,514 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:24:52,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:24:52,515 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:24:52,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:24:52,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:24:52,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:24:52,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:24:52,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:24:52,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:24:52,518 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:24:52,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:24:52,518 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:24:52,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:24:52,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:24:52,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:24:52,519 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:24:52,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:24:52,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:24:52,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:24:52,520 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:24:52,520 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:24:52,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:24:52,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:24:52,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:24:52,521 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:24:52,521 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 05:24:53,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:24:53,064 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:24:53,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:24:53,073 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:24:53,074 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:24:53,075 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-09-25 05:24:53,179 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a3d080ae/ffa3a4946f5c4ec198a8ec12467b3c58/FLAGcb2c4e086 [2020-09-25 05:24:53,782 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:24:53,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-09-25 05:24:53,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a3d080ae/ffa3a4946f5c4ec198a8ec12467b3c58/FLAGcb2c4e086 [2020-09-25 05:24:54,122 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a3d080ae/ffa3a4946f5c4ec198a8ec12467b3c58 [2020-09-25 05:24:54,135 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:24:54,141 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:24:54,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:24:54,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:24:54,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:24:54,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:24:54" (1/1) ... [2020-09-25 05:24:54,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14924135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:24:54, skipping insertion in model container [2020-09-25 05:24:54,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:24:54" (1/1) ... [2020-09-25 05:24:54,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:24:54,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:24:54,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:24:54,479 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:24:54,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:24:54,646 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:24:54,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:24:54 WrapperNode [2020-09-25 05:24:54,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:24:54,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:24:54,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:24:54,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:24:54,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:24:54" (1/1) ... [2020-09-25 05:24:54,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:24:54" (1/1) ... [2020-09-25 05:24:54,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:24:54" (1/1) ... [2020-09-25 05:24:54,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:24:54" (1/1) ... [2020-09-25 05:24:54,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:24:54" (1/1) ... [2020-09-25 05:24:54,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:24:54" (1/1) ... [2020-09-25 05:24:54,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:24:54" (1/1) ... [2020-09-25 05:24:54,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:24:54,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:24:54,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:24:54,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:24:54,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:24:54" (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 05:24:54,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:24:54,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:24:54,807 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-09-25 05:24:54,807 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-09-25 05:24:54,807 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-09-25 05:24:54,808 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:24:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:24:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-09-25 05:24:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-09-25 05:24:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-09-25 05:24:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:24:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-25 05:24:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:24:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:24:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-25 05:24:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:24:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-09-25 05:24:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:24:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:24:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-09-25 05:24:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:24:55,536 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:24:55,536 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-09-25 05:24:55,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:24:55 BoogieIcfgContainer [2020-09-25 05:24:55,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:24:55,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:24:55,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:24:55,556 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:24:55,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:24:54" (1/3) ... [2020-09-25 05:24:55,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@368f39ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:24:55, skipping insertion in model container [2020-09-25 05:24:55,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:24:54" (2/3) ... [2020-09-25 05:24:55,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@368f39ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:24:55, skipping insertion in model container [2020-09-25 05:24:55,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:24:55" (3/3) ... [2020-09-25 05:24:55,563 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-09-25 05:24:55,575 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:24:55,592 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:24:55,615 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:24:55,662 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:24:55,662 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:24:55,663 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:24:55,663 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:24:55,663 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:24:55,663 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:24:55,663 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:24:55,664 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:24:55,700 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2020-09-25 05:24:55,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 05:24:55,717 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:24:55,719 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 05:24:55,719 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:24:55,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:24:55,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1076720203, now seen corresponding path program 1 times [2020-09-25 05:24:55,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:24:55,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808651798] [2020-09-25 05:24:55,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:24:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:24:55,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:24:56,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:24:56,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:24:56,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:24:56,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 05:24:56,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:24:56,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 417 [2020-09-25 05:24:56,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:24:56,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:24:56,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:24:56,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 05:24:56,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:24:56,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 05:24:56,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:24:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:24:56,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:24:56,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:24:56,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:24:56,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:24:56,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 05:24:56,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:24:56,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:24:56,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:24:56,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:24:56,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:24:56,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:24:56,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 05:24:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:24:56,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:24:56,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:24:56,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:24:56,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:24:56,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 05:24:56,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:24:56,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:24:56,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:24:56,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 05:24:56,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:24:56,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:24:56,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 05:24:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:24:56,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:24:56,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:24:56,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:24:56,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:24:56,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 05:24:56,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:24:56,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 05:24:56,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:24:56,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:24:56,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:24:56,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 05:24:56,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:24:56,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:24:56,641 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 05:24:56,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808651798] [2020-09-25 05:24:56,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:24:56,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:24:56,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409925419] [2020-09-25 05:24:56,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:24:56,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:24:56,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:24:56,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:24:56,689 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2020-09-25 05:24:57,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:24:57,298 INFO L93 Difference]: Finished difference Result 414 states and 503 transitions. [2020-09-25 05:24:57,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:24:57,300 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-25 05:24:57,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:24:57,318 INFO L225 Difference]: With dead ends: 414 [2020-09-25 05:24:57,318 INFO L226 Difference]: Without dead ends: 209 [2020-09-25 05:24:57,326 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 05:24:57,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-09-25 05:24:57,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-09-25 05:24:57,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-09-25 05:24:57,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 235 transitions. [2020-09-25 05:24:57,402 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 235 transitions. Word has length 51 [2020-09-25 05:24:57,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:24:57,402 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 235 transitions. [2020-09-25 05:24:57,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:24:57,403 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 235 transitions. [2020-09-25 05:24:57,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 05:24:57,406 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:24:57,407 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 05:24:57,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:24:57,407 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:24:57,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:24:57,408 INFO L82 PathProgramCache]: Analyzing trace with hash -484158952, now seen corresponding path program 1 times [2020-09-25 05:24:57,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:24:57,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072154643] [2020-09-25 05:24:57,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:24:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 05:24:57,542 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 05:24:57,542 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 05:24:57,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:24:57,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:24:57 BoogieIcfgContainer [2020-09-25 05:24:57,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:24:57,612 INFO L168 Benchmark]: Toolchain (without parser) took 3473.36 ms. Allocated memory was 138.9 MB in the beginning and 233.8 MB in the end (delta: 94.9 MB). Free memory was 101.7 MB in the beginning and 119.6 MB in the end (delta: -17.9 MB). Peak memory consumption was 77.0 MB. Max. memory is 7.1 GB. [2020-09-25 05:24:57,614 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 05:24:57,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 505.62 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 101.1 MB in the beginning and 176.3 MB in the end (delta: -75.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-09-25 05:24:57,617 INFO L168 Benchmark]: Boogie Preprocessor took 73.05 ms. Allocated memory is still 201.3 MB. Free memory was 176.3 MB in the beginning and 173.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 05:24:57,618 INFO L168 Benchmark]: RCFGBuilder took 828.18 ms. Allocated memory is still 201.3 MB. Free memory was 173.6 MB in the beginning and 125.9 MB in the end (delta: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 7.1 GB. [2020-09-25 05:24:57,620 INFO L168 Benchmark]: TraceAbstraction took 2056.39 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 125.9 MB in the beginning and 119.6 MB in the end (delta: 6.2 MB). Peak memory consumption was 38.7 MB. Max. memory is 7.1 GB. [2020-09-25 05:24:57,629 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 505.62 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 101.1 MB in the beginning and 176.3 MB in the end (delta: -75.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 73.05 ms. Allocated memory is still 201.3 MB. Free memory was 176.3 MB in the beginning and 173.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 828.18 ms. Allocated memory is still 201.3 MB. Free memory was 173.6 MB in the beginning and 125.9 MB in the end (delta: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2056.39 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 125.9 MB in the beginning and 119.6 MB in the end (delta: 6.2 MB). Peak memory consumption was 38.7 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: 1.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, 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, 0.7s 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...