/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=0.4 --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/float_req_bl_1131b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:20:58,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:20:58,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:20:58,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:20:58,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:20:58,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:20:58,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:20:58,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:20:58,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:20:58,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:20:58,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:20:58,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:20:58,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:20:58,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:20:58,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:20:58,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:20:58,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:20:58,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:20:58,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:20:58,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:20:58,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:20:58,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:20:58,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:20:58,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:20:58,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:20:58,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:20:58,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:20:58,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:20:58,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:20:58,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:20:58,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:20:58,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:20:58,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:20:58,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:20:58,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:20:58,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:20:58,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:20:58,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:20:58,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:20:58,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:20:58,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:20:58,968 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 13:20:59,027 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:20:59,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:20:59,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:20:59,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:20:59,030 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:20:59,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:20:59,030 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:20:59,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:20:59,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:20:59,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:20:59,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:20:59,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:20:59,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:20:59,032 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:20:59,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:20:59,034 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:20:59,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:20:59,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:20:59,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:20:59,034 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:20:59,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:20:59,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:20:59,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:20:59,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:20:59,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:20:59,036 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:20:59,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:20:59,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:20:59,037 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:20:59,037 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=0.4;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:20:59,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:20:59,606 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:20:59,610 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:20:59,612 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:20:59,612 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:20:59,613 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1131b.c [2020-09-25 13:20:59,708 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b8983137/6399022545ba490d8aa7d4de07e0ec59/FLAG0352e5b2e [2020-09-25 13:21:00,301 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:21:00,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_1131b.c [2020-09-25 13:21:00,311 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b8983137/6399022545ba490d8aa7d4de07e0ec59/FLAG0352e5b2e [2020-09-25 13:21:00,621 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b8983137/6399022545ba490d8aa7d4de07e0ec59 [2020-09-25 13:21:00,635 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:21:00,642 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:21:00,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:21:00,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:21:00,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:21:00,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:21:00" (1/1) ... [2020-09-25 13:21:00,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc4fd3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:00, skipping insertion in model container [2020-09-25 13:21:00,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:21:00" (1/1) ... [2020-09-25 13:21:00,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:21:00,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:21:00,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:21:00,992 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:21:01,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:21:01,142 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:21:01,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:01 WrapperNode [2020-09-25 13:21:01,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:21:01,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:21:01,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:21:01,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:21:01,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:01" (1/1) ... [2020-09-25 13:21:01,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:01" (1/1) ... [2020-09-25 13:21:01,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:01" (1/1) ... [2020-09-25 13:21:01,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:01" (1/1) ... [2020-09-25 13:21:01,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:01" (1/1) ... [2020-09-25 13:21:01,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:01" (1/1) ... [2020-09-25 13:21:01,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:01" (1/1) ... [2020-09-25 13:21:01,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:21:01,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:21:01,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:21:01,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:21:01,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:01" (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 13:21:01,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:21:01,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:21:01,284 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_float [2020-09-25 13:21:01,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_float [2020-09-25 13:21:01,284 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:21:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:21:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-09-25 13:21:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_float [2020-09-25 13:21:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:21:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-25 13:21:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:21:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:21:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-25 13:21:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:21:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_float [2020-09-25 13:21:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:21:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:21:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-09-25 13:21:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:21:01,915 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:21:01,916 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-09-25 13:21:01,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:21:01 BoogieIcfgContainer [2020-09-25 13:21:01,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:21:01,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:21:01,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:21:01,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:21:01,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:21:00" (1/3) ... [2020-09-25 13:21:01,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b53fa38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:21:01, skipping insertion in model container [2020-09-25 13:21:01,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:01" (2/3) ... [2020-09-25 13:21:01,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b53fa38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:21:01, skipping insertion in model container [2020-09-25 13:21:01,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:21:01" (3/3) ... [2020-09-25 13:21:01,938 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1131b.c [2020-09-25 13:21:01,951 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:21:01,966 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:21:01,991 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:21:02,027 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:21:02,028 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:21:02,028 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:21:02,028 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:21:02,028 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:21:02,028 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:21:02,029 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:21:02,029 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:21:02,058 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2020-09-25 13:21:02,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-25 13:21:02,070 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:21:02,072 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 13:21:02,072 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:21:02,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:21:02,081 INFO L82 PathProgramCache]: Analyzing trace with hash -309473205, now seen corresponding path program 1 times [2020-09-25 13:21:02,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:21:02,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484190556] [2020-09-25 13:21:02,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:21:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:02,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:02,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:02,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:02,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:02,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 13:21:02,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:21:02,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-09-25 13:21:02,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:02,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:02,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:21:02,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 13:21:02,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:21:02,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:21:02,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:21:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:02,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:02,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:02,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:21:02,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:21:02,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 13:21:02,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:02,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:02,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:21:02,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:21:02,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:21:02,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:21:02,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 13:21:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:02,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:02,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:02,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:02,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 13:21:02,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:21:02,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 13:21:02,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:02,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:02,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:21:02,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 13:21:02,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:21:02,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:21:02,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 13:21:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:02,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:02,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:02,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:02,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:21:02,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:21:02,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:21:02,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:02,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:02,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:21:02,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 13:21:02,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:21:02,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:21:02,827 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 13:21:02,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484190556] [2020-09-25 13:21:02,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:21:02,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:21:02,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481554731] [2020-09-25 13:21:02,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:21:02,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:21:02,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:21:02,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:21:02,862 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 4 states. [2020-09-25 13:21:03,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:21:03,362 INFO L93 Difference]: Finished difference Result 306 states and 369 transitions. [2020-09-25 13:21:03,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 13:21:03,365 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2020-09-25 13:21:03,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:21:03,380 INFO L225 Difference]: With dead ends: 306 [2020-09-25 13:21:03,380 INFO L226 Difference]: Without dead ends: 155 [2020-09-25 13:21:03,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:21:03,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-09-25 13:21:03,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2020-09-25 13:21:03,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-09-25 13:21:03,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 170 transitions. [2020-09-25 13:21:03,453 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 170 transitions. Word has length 49 [2020-09-25 13:21:03,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:21:03,453 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 170 transitions. [2020-09-25 13:21:03,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:21:03,454 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 170 transitions. [2020-09-25 13:21:03,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-09-25 13:21:03,457 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:21:03,457 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 13:21:03,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:21:03,458 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:21:03,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:21:03,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1032631156, now seen corresponding path program 1 times [2020-09-25 13:21:03,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:21:03,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759920645] [2020-09-25 13:21:03,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:21:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 13:21:03,522 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 13:21:03,522 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 13:21:03,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:21:03,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:21:03 BoogieIcfgContainer [2020-09-25 13:21:03,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:21:03,565 INFO L168 Benchmark]: Toolchain (without parser) took 2926.02 ms. Allocated memory was 139.5 MB in the beginning and 234.9 MB in the end (delta: 95.4 MB). Free memory was 103.0 MB in the beginning and 152.9 MB in the end (delta: -49.9 MB). Peak memory consumption was 45.5 MB. Max. memory is 7.1 GB. [2020-09-25 13:21:03,567 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 13:21:03,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 500.62 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 102.3 MB in the beginning and 178.5 MB in the end (delta: -76.2 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-09-25 13:21:03,571 INFO L168 Benchmark]: Boogie Preprocessor took 62.50 ms. Allocated memory is still 201.9 MB. Free memory was 178.5 MB in the beginning and 175.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 13:21:03,572 INFO L168 Benchmark]: RCFGBuilder took 720.27 ms. Allocated memory is still 201.9 MB. Free memory was 175.8 MB in the beginning and 139.6 MB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2020-09-25 13:21:03,574 INFO L168 Benchmark]: TraceAbstraction took 1632.18 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 138.9 MB in the beginning and 152.9 MB in the end (delta: -13.9 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. [2020-09-25 13:21:03,586 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 500.62 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 102.3 MB in the beginning and 178.5 MB in the end (delta: -76.2 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.50 ms. Allocated memory is still 201.9 MB. Free memory was 178.5 MB in the beginning and 175.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 720.27 ms. Allocated memory is still 201.9 MB. Free memory was 175.8 MB in the beginning and 139.6 MB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1632.18 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 138.9 MB in the beginning and 152.9 MB in the end (delta: -13.9 MB). Peak memory consumption was 19.1 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: 1.5s, 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, 0.1s 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, 0.5s 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...