/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --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/float_req_bl_1131b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:58:13,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:58:13,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:58:13,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:58:13,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:58:13,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:58:13,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:58:13,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:58:13,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:58:13,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:58:13,882 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:58:13,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:58:13,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:58:13,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:58:13,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:58:13,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:58:13,892 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:58:13,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:58:13,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:58:13,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:58:13,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:58:13,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:58:13,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:58:13,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:58:13,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:58:13,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:58:13,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:58:13,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:58:13,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:58:13,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:58:13,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:58:13,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:58:13,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:58:13,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:58:13,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:58:13,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:58:13,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:58:13,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:58:13,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:58:13,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:58:13,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:58:13,928 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 09:58:13,956 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:58:13,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:58:13,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:58:13,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:58:13,958 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:58:13,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:58:13,959 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:58:13,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:58:13,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:58:13,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:58:13,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:58:13,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:58:13,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:58:13,960 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:58:13,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:58:13,961 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:58:13,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:58:13,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:58:13,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:58:13,962 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:58:13,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:58:13,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:58:13,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:58:13,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:58:13,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:58:13,963 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:58:13,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:58:13,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:58:13,964 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:58:13,964 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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:58:14,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:58:14,483 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:58:14,487 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:58:14,489 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:58:14,489 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:58:14,491 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1131b.c [2020-09-25 09:58:14,568 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84e05088c/c0d39ee7d8fb4e3fb57022bfdf7f4f57/FLAGbe5e83677 [2020-09-25 09:58:15,107 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:58:15,108 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_1131b.c [2020-09-25 09:58:15,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84e05088c/c0d39ee7d8fb4e3fb57022bfdf7f4f57/FLAGbe5e83677 [2020-09-25 09:58:15,438 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84e05088c/c0d39ee7d8fb4e3fb57022bfdf7f4f57 [2020-09-25 09:58:15,452 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:58:15,458 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:58:15,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:58:15,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:58:15,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:58:15,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:58:15" (1/1) ... [2020-09-25 09:58:15,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@257a0311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:15, skipping insertion in model container [2020-09-25 09:58:15,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:58:15" (1/1) ... [2020-09-25 09:58:15,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:58:15,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:58:15,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:58:15,785 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:58:15,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:58:15,943 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:58:15,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:15 WrapperNode [2020-09-25 09:58:15,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:58:15,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:58:15,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:58:15,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:58:15,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:15" (1/1) ... [2020-09-25 09:58:15,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:15" (1/1) ... [2020-09-25 09:58:15,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:15" (1/1) ... [2020-09-25 09:58:15,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:15" (1/1) ... [2020-09-25 09:58:15,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:15" (1/1) ... [2020-09-25 09:58:16,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:15" (1/1) ... [2020-09-25 09:58:16,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:15" (1/1) ... [2020-09-25 09:58:16,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:58:16,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:58:16,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:58:16,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:58:16,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:15" (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 09:58:16,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:58:16,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:58:16,087 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_float [2020-09-25 09:58:16,087 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_float [2020-09-25 09:58:16,087 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:58:16,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:58:16,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-09-25 09:58:16,088 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_float [2020-09-25 09:58:16,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:58:16,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-25 09:58:16,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:58:16,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:58:16,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-25 09:58:16,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:58:16,089 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_float [2020-09-25 09:58:16,095 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:58:16,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:58:16,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-09-25 09:58:16,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:58:16,654 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:58:16,654 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-09-25 09:58:16,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:58:16 BoogieIcfgContainer [2020-09-25 09:58:16,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:58:16,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:58:16,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:58:16,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:58:16,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:58:15" (1/3) ... [2020-09-25 09:58:16,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed91107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:58:16, skipping insertion in model container [2020-09-25 09:58:16,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:15" (2/3) ... [2020-09-25 09:58:16,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed91107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:58:16, skipping insertion in model container [2020-09-25 09:58:16,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:58:16" (3/3) ... [2020-09-25 09:58:16,680 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1131b.c [2020-09-25 09:58:16,691 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:58:16,704 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:58:16,724 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:58:16,755 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:58:16,755 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:58:16,755 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:58:16,755 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:58:16,756 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:58:16,756 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:58:16,756 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:58:16,756 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:58:16,783 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2020-09-25 09:58:16,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-25 09:58:16,794 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:16,795 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] [2020-09-25 09:58:16,795 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:16,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:16,803 INFO L82 PathProgramCache]: Analyzing trace with hash -309473205, now seen corresponding path program 1 times [2020-09-25 09:58:16,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:16,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751317541] [2020-09-25 09:58:16,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:16,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:17,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:17,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:17,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:17,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 09:58:17,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:58:17,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 365 [2020-09-25 09:58:17,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:17,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:17,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:17,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 09:58:17,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:17,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 09:58:17,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:17,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:17,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:17,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:58:17,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:17,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 09:58:17,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:17,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:17,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:17,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:17,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:17,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:17,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 09:58:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:17,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:17,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:17,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:17,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:58:17,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:58:17,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 09:58:17,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:17,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:17,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:17,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 09:58:17,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:17,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:17,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 09:58:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:17,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:17,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:17,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:17,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:58:17,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:58:17,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:58:17,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:17,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:17,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:17,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 09:58:17,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:17,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:17,566 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 09:58:17,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751317541] [2020-09-25 09:58:17,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:58:17,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 09:58:17,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656163721] [2020-09-25 09:58:17,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 09:58:17,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:17,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 09:58:17,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 09:58:17,600 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 4 states. [2020-09-25 09:58:18,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:18,064 INFO L93 Difference]: Finished difference Result 306 states and 369 transitions. [2020-09-25 09:58:18,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 09:58:18,067 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2020-09-25 09:58:18,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:18,082 INFO L225 Difference]: With dead ends: 306 [2020-09-25 09:58:18,082 INFO L226 Difference]: Without dead ends: 155 [2020-09-25 09:58:18,088 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 09:58:18,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-09-25 09:58:18,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2020-09-25 09:58:18,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-09-25 09:58:18,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 170 transitions. [2020-09-25 09:58:18,156 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 170 transitions. Word has length 49 [2020-09-25 09:58:18,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:18,156 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 170 transitions. [2020-09-25 09:58:18,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 09:58:18,157 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 170 transitions. [2020-09-25 09:58:18,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-09-25 09:58:18,160 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:18,160 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] [2020-09-25 09:58:18,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:58:18,161 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:18,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:18,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1032631156, now seen corresponding path program 1 times [2020-09-25 09:58:18,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:18,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [703489020] [2020-09-25 09:58:18,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 09:58:18,224 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 09:58:18,225 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 09:58:18,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:58:18,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:58:18 BoogieIcfgContainer [2020-09-25 09:58:18,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 09:58:18,257 INFO L168 Benchmark]: Toolchain (without parser) took 2801.62 ms. Allocated memory was 147.8 MB in the beginning and 234.4 MB in the end (delta: 86.5 MB). Free memory was 104.3 MB in the beginning and 149.3 MB in the end (delta: -45.0 MB). Peak memory consumption was 41.5 MB. Max. memory is 7.1 GB. [2020-09-25 09:58:18,258 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 09:58:18,259 INFO L168 Benchmark]: CACSL2BoogieTranslator took 485.13 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 103.7 MB in the beginning and 180.6 MB in the end (delta: -77.0 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-09-25 09:58:18,260 INFO L168 Benchmark]: Boogie Preprocessor took 67.22 ms. Allocated memory is still 203.9 MB. Free memory was 180.6 MB in the beginning and 178.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-25 09:58:18,260 INFO L168 Benchmark]: RCFGBuilder took 655.55 ms. Allocated memory is still 203.9 MB. Free memory was 178.0 MB in the beginning and 141.7 MB in the end (delta: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. [2020-09-25 09:58:18,261 INFO L168 Benchmark]: TraceAbstraction took 1583.43 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 141.1 MB in the beginning and 149.3 MB in the end (delta: -8.3 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-09-25 09:58:18,265 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 485.13 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 103.7 MB in the beginning and 180.6 MB in the end (delta: -77.0 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 67.22 ms. Allocated memory is still 203.9 MB. Free memory was 180.6 MB in the beginning and 178.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 655.55 ms. Allocated memory is still 203.9 MB. Free memory was 178.0 MB in the beginning and 141.7 MB in the end (delta: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1583.43 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 141.1 MB in the beginning and 149.3 MB in the end (delta: -8.3 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 135]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 134, overapproximation of someUnaryDOUBLEoperation at line 14, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryArithmeticFLOAToperation at line 35, overapproximation of bitwiseXor at line 31. Possible FailurePath: [L12-L15] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L126] float x = __VERIFIER_nondet_float(); [L127] float y = -1.0f / 0.0f; [L129] CALL isfinite_float(x) [L109] __int32_t ix; [L111] ieee_float_shape_type gf_u; [L112] gf_u.value = (x) [L113] EXPR gf_u.word [L113] (ix) = gf_u.word [L115] ix &= 0x7fffffff [L116] return (((ix) < 0x7f800000L)); [L129] RET isfinite_float(x) [L129] COND TRUE isfinite_float(x) [L131] CALL, EXPR fmod_float(x, y) [L18] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L21] ieee_float_shape_type gf_u; [L22] gf_u.value = (x) [L23] EXPR gf_u.word [L23] (hx) = gf_u.word [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (y) [L28] EXPR gf_u.word [L28] (hy) = gf_u.word [L30] sx = hx & 0x80000000 [L31] hx ^= sx [L32] hy &= 0x7fffffff [L34] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L35] return (x * y) / (x * y); [L131] RET, EXPR fmod_float(x, y) [L131] float res = fmod_float(x, y); [L134] COND TRUE res != x [L135] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 162 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 174 SDtfs, 31 SDslu, 128 SDs, 0 SdLazy, 190 SolverSat, 5 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred 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, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 4464 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...