/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0683a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:44:17,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:44:17,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:44:17,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:44:17,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:44:17,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:44:17,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:44:17,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:44:17,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:44:17,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:44:17,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:44:17,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:44:17,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:44:17,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:44:17,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:44:17,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:44:17,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:44:17,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:44:17,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:44:17,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:44:17,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:44:17,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:44:17,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:44:17,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:44:17,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:44:17,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:44:17,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:44:17,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:44:17,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:44:17,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:44:17,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:44:17,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:44:17,644 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:44:17,645 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:44:17,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:44:17,646 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:44:17,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:44:17,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:44:17,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:44:17,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:44:17,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:44:17,654 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 19:44:17,683 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:44:17,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:44:17,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:44:17,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:44:17,685 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:44:17,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:44:17,686 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:44:17,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:44:17,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:44:17,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:44:17,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:44:17,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:44:17,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:44:17,687 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:44:17,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:44:17,688 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:44:17,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:44:17,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:44:17,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:44:17,689 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:44:17,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:44:17,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:44:17,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:44:17,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:44:17,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:44:17,690 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:44:17,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:44:17,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:44:17,691 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:44:17,691 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:44:18,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:44:18,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:44:18,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:44:18,204 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:44:18,204 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:44:18,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0683a.c [2020-10-27 19:44:18,288 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec93295b1/a08638f36ff04861a4dfc1050e63f292/FLAGd9a6be103 [2020-10-27 19:44:18,996 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:44:18,997 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_0683a.c [2020-10-27 19:44:19,014 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec93295b1/a08638f36ff04861a4dfc1050e63f292/FLAGd9a6be103 [2020-10-27 19:44:19,269 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec93295b1/a08638f36ff04861a4dfc1050e63f292 [2020-10-27 19:44:19,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:44:19,281 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:44:19,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:44:19,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:44:19,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:44:19,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:44:19" (1/1) ... [2020-10-27 19:44:19,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53cc3f83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:19, skipping insertion in model container [2020-10-27 19:44:19,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:44:19" (1/1) ... [2020-10-27 19:44:19,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:44:19,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:44:19,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:44:19,593 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:44:19,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:44:19,732 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:44:19,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:19 WrapperNode [2020-10-27 19:44:19,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:44:19,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:44:19,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:44:19,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:44:19,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:19" (1/1) ... [2020-10-27 19:44:19,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:19" (1/1) ... [2020-10-27 19:44:19,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:19" (1/1) ... [2020-10-27 19:44:19,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:19" (1/1) ... [2020-10-27 19:44:19,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:19" (1/1) ... [2020-10-27 19:44:19,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:19" (1/1) ... [2020-10-27 19:44:19,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:19" (1/1) ... [2020-10-27 19:44:19,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:44:19,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:44:19,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:44:19,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:44:19,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:19" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:44:19,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:44:19,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:44:19,887 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:44:19,887 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-10-27 19:44:19,887 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2020-10-27 19:44:19,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2020-10-27 19:44:19,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-10-27 19:44:19,889 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_float [2020-10-27 19:44:19,890 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:44:19,890 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:44:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:44:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:44:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:44:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-27 19:44:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-10-27 19:44:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:44:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:44:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:44:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:44:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:44:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2020-10-27 19:44:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2020-10-27 19:44:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-10-27 19:44:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_float [2020-10-27 19:44:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:44:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:44:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:44:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 19:44:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:44:20,681 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:44:20,681 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-27 19:44:20,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:44:20 BoogieIcfgContainer [2020-10-27 19:44:20,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:44:20,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:44:20,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:44:20,689 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:44:20,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:44:19" (1/3) ... [2020-10-27 19:44:20,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@333995c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:44:20, skipping insertion in model container [2020-10-27 19:44:20,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:44:19" (2/3) ... [2020-10-27 19:44:20,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@333995c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:44:20, skipping insertion in model container [2020-10-27 19:44:20,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:44:20" (3/3) ... [2020-10-27 19:44:20,692 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0683a.c [2020-10-27 19:44:20,705 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:44:20,710 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:44:20,725 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:44:20,756 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:44:20,756 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:44:20,756 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:44:20,756 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:44:20,757 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:44:20,757 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:44:20,757 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:44:20,757 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:44:20,779 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states. [2020-10-27 19:44:20,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-27 19:44:20,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:44:20,789 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] [2020-10-27 19:44:20,790 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:44:20,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:44:20,797 INFO L82 PathProgramCache]: Analyzing trace with hash 113553072, now seen corresponding path program 1 times [2020-10-27 19:44:20,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:44:20,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724531621] [2020-10-27 19:44:20,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:44:20,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:44:21,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:44:21,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:44:21,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:44:21,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:44:21,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 19:44:21,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 19:44:21,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 526 [2020-10-27 19:44:21,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:44:21,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:44:21,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-27 19:44:21,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:44:21,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 19:44:21,716 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 19:44:21,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:44:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:44:21,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:44:21,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:44:21,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:44:21,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:44:21,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 19:44:21,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:44:21,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:44:21,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:44:21,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:44:21,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:44:21,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:44:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:44:21,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:44:21,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:44:21,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:44:21,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:44:21,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:44:21,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 19:44:21,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:44:21,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:44:21,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 19:44:21,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:44:21,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:44:21,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-27 19:44:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:44:21,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:44:21,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:44:21,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:44:21,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 19:44:21,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:44:21,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 19:44:21,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:44:21,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:44:21,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:44:21,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:44:21,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 19:44:21,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:44:21,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724531621] [2020-10-27 19:44:21,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:44:21,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:44:21,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869367595] [2020-10-27 19:44:21,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:44:21,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:44:21,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:44:21,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:44:21,912 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 4 states. [2020-10-27 19:44:22,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:44:22,419 INFO L93 Difference]: Finished difference Result 233 states and 360 transitions. [2020-10-27 19:44:22,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:44:22,421 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-10-27 19:44:22,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:44:22,433 INFO L225 Difference]: With dead ends: 233 [2020-10-27 19:44:22,433 INFO L226 Difference]: Without dead ends: 114 [2020-10-27 19:44:22,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:44:22,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-27 19:44:22,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-10-27 19:44:22,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-27 19:44:22,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 154 transitions. [2020-10-27 19:44:22,528 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 154 transitions. Word has length 28 [2020-10-27 19:44:22,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:44:22,529 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 154 transitions. [2020-10-27 19:44:22,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:44:22,529 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 154 transitions. [2020-10-27 19:44:22,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-27 19:44:22,531 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:44:22,531 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] [2020-10-27 19:44:22,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:44:22,532 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:44:22,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:44:22,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1452785207, now seen corresponding path program 1 times [2020-10-27 19:44:22,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:44:22,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [738601336] [2020-10-27 19:44:22,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:44:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:44:22,599 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:44:22,600 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:44:22,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:44:22,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:44:22 BoogieIcfgContainer [2020-10-27 19:44:22,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:44:22,629 INFO L168 Benchmark]: Toolchain (without parser) took 3352.60 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 125.9 MB in the beginning and 147.6 MB in the end (delta: -21.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 8.0 GB. [2020-10-27 19:44:22,630 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 124.1 MB in the end (delta: 102.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:44:22,631 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.47 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 111.0 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 19:44:22,632 INFO L168 Benchmark]: Boogie Preprocessor took 71.08 ms. Allocated memory is still 151.0 MB. Free memory was 111.0 MB in the beginning and 107.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:44:22,633 INFO L168 Benchmark]: RCFGBuilder took 875.80 ms. Allocated memory is still 151.0 MB. Free memory was 107.9 MB in the beginning and 98.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 11.0 MB. Max. memory is 8.0 GB. [2020-10-27 19:44:22,634 INFO L168 Benchmark]: TraceAbstraction took 1942.03 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 97.6 MB in the beginning and 147.6 MB in the end (delta: -50.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:44:22,637 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 124.1 MB in the end (delta: 102.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 450.47 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 111.0 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 71.08 ms. Allocated memory is still 151.0 MB. Free memory was 111.0 MB in the beginning and 107.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 875.80 ms. Allocated memory is still 151.0 MB. Free memory was 107.9 MB in the beginning and 98.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 11.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1942.03 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 97.6 MB in the beginning and 147.6 MB in the end (delta: -50.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 256, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 135, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; [L249] float x = 1.0f / 0.0f; [L250] float y = __VERIFIER_nondet_float(); [L252] CALL, EXPR isfinite_float(y) [L231] __int32_t ix; [L233] ieee_float_shape_type gf_u; [L234] gf_u.value = (x) [L235] EXPR gf_u.word [L235] (ix) = gf_u.word [L237] ix &= 0x7fffffff [L238] return (((ix) < 0x7f800000L)); [L252] RET, EXPR isfinite_float(y) [L252] COND TRUE isfinite_float(y) && y < 0.0f [L253] CALL, EXPR __ieee754_atan2f(y, x) [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; [L125] ieee_float_shape_type gf_u; [L126] gf_u.value = (x) [L127] EXPR gf_u.word [L127] (hx) = gf_u.word [L129] ix = hx & 0x7fffffff [L131] ieee_float_shape_type gf_u; [L132] gf_u.value = (y) [L133] EXPR gf_u.word [L133] (hy) = gf_u.word [L135] iy = hy & 0x7fffffff [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] return x + y; [L253] RET, EXPR __ieee754_atan2f(y, x) [L253] float res = __ieee754_atan2f(y, x); [L256] EXPR res == -0.0f && __signbit_float(res) == 1 [L256] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L257] CALL reach_error() [L3] __assert_fail("0", "float_req_bl_0683a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 122 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 154 SDtfs, 14 SDslu, 141 SDs, 0 SdLazy, 151 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=122occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 3321 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...