./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1032d.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1032d.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 875e041813cc52e2b4711be1a316a97bbafa7756 ................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1032d.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 875e041813cc52e2b4711be1a316a97bbafa7756 ................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:56:25,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:56:25,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:56:25,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:56:25,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:56:25,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:56:25,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:56:25,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:56:25,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:56:25,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:56:25,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:56:25,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:56:25,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:56:25,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:56:25,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:56:25,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:56:25,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:56:25,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:56:25,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:56:25,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:56:25,797 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:56:25,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:56:25,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:56:25,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:56:25,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:56:25,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:56:25,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:56:25,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:56:25,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:56:25,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:56:25,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:56:25,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:56:25,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:56:25,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:56:25,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:56:25,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:56:25,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:56:25,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:56:25,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:56:25,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:56:25,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:56:25,826 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:56:25,868 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:56:25,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:56:25,869 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:56:25,870 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:56:25,870 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:56:25,870 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:56:25,870 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:56:25,871 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:56:25,871 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:56:25,871 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:56:25,872 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:56:25,872 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:56:25,873 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:56:25,873 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:56:25,873 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:56:25,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:56:25,874 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:56:25,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:56:25,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:56:25,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:56:25,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:56:25,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:56:25,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:56:25,876 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:56:25,876 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:56:25,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:56:25,876 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:56:25,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:56:25,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:56:25,877 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:56:25,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:56:25,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:56:25,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:56:25,878 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:56:25,878 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:56:25,879 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:56:25,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:56:25,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:56:25,879 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:56:25,880 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:56:25,880 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 875e041813cc52e2b4711be1a316a97bbafa7756 [2020-11-22 12:56:26,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:56:26,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:56:26,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:56:26,162 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:56:26,163 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:56:26,164 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1032d.c [2020-11-22 12:56:26,224 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/data/6dcdbd36c/e5cd0dedc7c2479ebf1ce6495a46d32e/FLAG1695e7594 [2020-11-22 12:56:26,799 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:56:26,800 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/sv-benchmarks/c/float-newlib/double_req_bl_1032d.c [2020-11-22 12:56:26,811 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/data/6dcdbd36c/e5cd0dedc7c2479ebf1ce6495a46d32e/FLAG1695e7594 [2020-11-22 12:56:27,137 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/data/6dcdbd36c/e5cd0dedc7c2479ebf1ce6495a46d32e [2020-11-22 12:56:27,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:56:27,140 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:56:27,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:27,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:56:27,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:56:27,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:27" (1/1) ... [2020-11-22 12:56:27,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a03c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:27, skipping insertion in model container [2020-11-22 12:56:27,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:27" (1/1) ... [2020-11-22 12:56:27,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:56:27,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:56:27,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:27,447 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:56:27,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:27,488 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:56:27,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:27 WrapperNode [2020-11-22 12:56:27,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:27,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:56:27,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:56:27,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:56:27,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:27" (1/1) ... [2020-11-22 12:56:27,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:27" (1/1) ... [2020-11-22 12:56:27,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:56:27,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:56:27,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:56:27,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:56:27,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:27" (1/1) ... [2020-11-22 12:56:27,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:27" (1/1) ... [2020-11-22 12:56:27,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:27" (1/1) ... [2020-11-22 12:56:27,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:27" (1/1) ... [2020-11-22 12:56:27,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:27" (1/1) ... [2020-11-22 12:56:27,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:27" (1/1) ... [2020-11-22 12:56:27,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:27" (1/1) ... [2020-11-22 12:56:27,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:56:27,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:56:27,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:56:27,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:56:27,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/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 [2020-11-22 12:56:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 12:56:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:56:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-22 12:56:27,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 12:56:27,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-22 12:56:27,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:56:27,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:56:27,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-22 12:56:27,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 12:56:28,281 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:56:28,282 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-22 12:56:28,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:28 BoogieIcfgContainer [2020-11-22 12:56:28,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:56:28,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:56:28,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:56:28,290 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:56:28,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:56:27" (1/3) ... [2020-11-22 12:56:28,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b0a817b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:28, skipping insertion in model container [2020-11-22 12:56:28,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:27" (2/3) ... [2020-11-22 12:56:28,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b0a817b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:28, skipping insertion in model container [2020-11-22 12:56:28,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:28" (3/3) ... [2020-11-22 12:56:28,294 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032d.c [2020-11-22 12:56:28,305 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:56:28,309 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 12:56:28,321 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 12:56:28,354 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:56:28,355 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:56:28,355 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:56:28,355 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:56:28,355 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:56:28,356 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:56:28,356 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:56:28,356 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:56:28,369 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-11-22 12:56:28,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 12:56:28,374 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:28,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:28,375 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:28,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:28,382 INFO L82 PathProgramCache]: Analyzing trace with hash 488328523, now seen corresponding path program 1 times [2020-11-22 12:56:28,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:56:28,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311958662] [2020-11-22 12:56:28,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:56:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:28,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:28,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311958662] [2020-11-22 12:56:28,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:28,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 12:56:28,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748652172] [2020-11-22 12:56:28,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:56:28,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:56:28,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:56:28,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:56:28,563 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-11-22 12:56:28,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:28,583 INFO L93 Difference]: Finished difference Result 41 states and 63 transitions. [2020-11-22 12:56:28,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:56:28,585 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-22 12:56:28,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:28,602 INFO L225 Difference]: With dead ends: 41 [2020-11-22 12:56:28,603 INFO L226 Difference]: Without dead ends: 19 [2020-11-22 12:56:28,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:56:28,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-22 12:56:28,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-22 12:56:28,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-22 12:56:28,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2020-11-22 12:56:28,643 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 10 [2020-11-22 12:56:28,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:28,644 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2020-11-22 12:56:28,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:56:28,644 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-11-22 12:56:28,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-22 12:56:28,645 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:28,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:28,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 12:56:28,645 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:28,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:28,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1034469516, now seen corresponding path program 1 times [2020-11-22 12:56:28,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:56:28,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281113987] [2020-11-22 12:56:28,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:56:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:56:28,802 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:56:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:56:28,877 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:56:28,918 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 12:56:28,918 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:56:28,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 12:56:28,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:56:28 BoogieIcfgContainer [2020-11-22 12:56:28,957 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:56:28,958 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:56:28,958 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:56:28,959 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:56:28,959 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:28" (3/4) ... [2020-11-22 12:56:28,962 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 12:56:28,962 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:56:28,966 INFO L168 Benchmark]: Toolchain (without parser) took 1824.05 ms. Allocated memory is still 115.3 MB. Free memory was 87.1 MB in the beginning and 87.2 MB in the end (delta: -155.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:28,967 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 83.9 MB. Free memory was 41.3 MB in the beginning and 41.3 MB in the end (delta: 41.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:28,968 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.11 ms. Allocated memory is still 115.3 MB. Free memory was 87.1 MB in the beginning and 91.7 MB in the end (delta: -4.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:28,970 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.89 ms. Allocated memory is still 115.3 MB. Free memory was 91.7 MB in the beginning and 89.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:28,971 INFO L168 Benchmark]: Boogie Preprocessor took 34.67 ms. Allocated memory is still 115.3 MB. Free memory was 89.7 MB in the beginning and 88.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:28,971 INFO L168 Benchmark]: RCFGBuilder took 719.73 ms. Allocated memory is still 115.3 MB. Free memory was 88.4 MB in the beginning and 61.1 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:28,973 INFO L168 Benchmark]: TraceAbstraction took 671.87 ms. Allocated memory is still 115.3 MB. Free memory was 61.1 MB in the beginning and 87.7 MB in the end (delta: -26.6 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:28,974 INFO L168 Benchmark]: Witness Printer took 5.45 ms. Allocated memory is still 115.3 MB. Free memory was 87.7 MB in the beginning and 87.2 MB in the end (delta: 477.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:28,983 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 83.9 MB. Free memory was 41.3 MB in the beginning and 41.3 MB in the end (delta: 41.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 333.11 ms. Allocated memory is still 115.3 MB. Free memory was 87.1 MB in the beginning and 91.7 MB in the end (delta: -4.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.89 ms. Allocated memory is still 115.3 MB. Free memory was 91.7 MB in the beginning and 89.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.67 ms. Allocated memory is still 115.3 MB. Free memory was 89.7 MB in the beginning and 88.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 719.73 ms. Allocated memory is still 115.3 MB. Free memory was 88.4 MB in the beginning and 61.1 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 671.87 ms. Allocated memory is still 115.3 MB. Free memory was 61.1 MB in the beginning and 87.7 MB in the end (delta: -26.6 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. * Witness Printer took 5.45 ms. Allocated memory is still 115.3 MB. Free memory was 87.7 MB in the beginning and 87.2 MB in the end (delta: 477.1 kB). There was no memory consumed. Max. memory is 16.1 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 bitwiseOr at line 75, overapproximation of someBinaryArithmeticDOUBLEoperation at line 42, overapproximation of bitwiseAnd at line 74. Possible FailurePath: [L88] double x = -1.0 / 0.0; [L17] __int32_t msw, exponent_less_1023; [L18] __uint32_t lsw; [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (msw) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (lsw) = ew_u.parts.lsw [L25] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L26] COND FALSE !(exponent_less_1023 < 20) [L40] COND TRUE exponent_less_1023 > 51 [L41] COND TRUE exponent_less_1023 == 1024 [L42] return x + x; [L89] double res = round_double(x); [L67] __int32_t hx, lx; [L69] ieee_double_shape_type ew_u; [L70] ew_u.value = (x) [L71] EXPR ew_u.parts.msw [L71] (hx) = ew_u.parts.msw [L72] EXPR ew_u.parts.lsw [L72] (lx) = ew_u.parts.lsw [L74] hx &= 0x7fffffff [L75] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L76] hx = 0x7ff00000 - hx [L77] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L92] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_1032d.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:56:31,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:56:31,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:56:31,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:56:31,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:56:31,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:56:31,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:56:31,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:56:31,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:56:31,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:56:31,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:56:31,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:56:31,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:56:31,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:56:31,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:56:31,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:56:31,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:56:31,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:56:31,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:56:31,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:56:31,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:56:31,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:56:31,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:56:31,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:56:31,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:56:31,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:56:31,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:56:31,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:56:31,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:56:31,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:56:31,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:56:31,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:56:31,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:56:31,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:56:31,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:56:31,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:56:31,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:56:31,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:56:31,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:56:31,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:56:31,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:56:31,547 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:56:31,587 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:56:31,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:56:31,589 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:56:31,589 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:56:31,590 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:56:31,590 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:56:31,590 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:56:31,591 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:56:31,591 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:56:31,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:56:31,593 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:56:31,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:56:31,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:56:31,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:56:31,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:56:31,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:56:31,595 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:56:31,595 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:56:31,595 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:56:31,595 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:56:31,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:56:31,596 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:56:31,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:56:31,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:56:31,596 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:56:31,597 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:56:31,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:56:31,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:56:31,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:56:31,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:56:31,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:56:31,598 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:56:31,598 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:56:31,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:56:31,599 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:56:31,599 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:56:31,599 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 875e041813cc52e2b4711be1a316a97bbafa7756 [2020-11-22 12:56:31,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:56:32,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:56:32,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:56:32,035 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:56:32,038 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:56:32,039 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1032d.c [2020-11-22 12:56:32,115 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/data/8cd7968bd/cb0f9e15c5494c42a922f49590e046e0/FLAGf43b690f0 [2020-11-22 12:56:32,603 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:56:32,604 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/sv-benchmarks/c/float-newlib/double_req_bl_1032d.c [2020-11-22 12:56:32,615 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/data/8cd7968bd/cb0f9e15c5494c42a922f49590e046e0/FLAGf43b690f0 [2020-11-22 12:56:32,964 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/data/8cd7968bd/cb0f9e15c5494c42a922f49590e046e0 [2020-11-22 12:56:32,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:56:32,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:56:32,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:32,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:56:32,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:56:32,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:32" (1/1) ... [2020-11-22 12:56:32,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@738aa8d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:32, skipping insertion in model container [2020-11-22 12:56:32,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:32" (1/1) ... [2020-11-22 12:56:32,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:56:33,014 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:56:33,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:33,258 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:56:33,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:33,348 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:56:33,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:33 WrapperNode [2020-11-22 12:56:33,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:33,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:56:33,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:56:33,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:56:33,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:33" (1/1) ... [2020-11-22 12:56:33,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:33" (1/1) ... [2020-11-22 12:56:33,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:56:33,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:56:33,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:56:33,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:56:33,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:33" (1/1) ... [2020-11-22 12:56:33,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:33" (1/1) ... [2020-11-22 12:56:33,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:33" (1/1) ... [2020-11-22 12:56:33,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:33" (1/1) ... [2020-11-22 12:56:33,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:33" (1/1) ... [2020-11-22 12:56:33,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:33" (1/1) ... [2020-11-22 12:56:33,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:33" (1/1) ... [2020-11-22 12:56:33,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:56:33,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:56:33,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:56:33,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:56:33,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/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 [2020-11-22 12:56:33,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-22 12:56:33,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-22 12:56:33,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:56:33,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:56:33,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-22 12:56:33,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:56:33,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:56:33,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-22 12:56:33,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 12:56:34,031 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:56:34,032 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-22 12:56:34,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:34 BoogieIcfgContainer [2020-11-22 12:56:34,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:56:34,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:56:34,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:56:34,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:56:34,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:56:32" (1/3) ... [2020-11-22 12:56:34,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d84d4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:34, skipping insertion in model container [2020-11-22 12:56:34,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:33" (2/3) ... [2020-11-22 12:56:34,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d84d4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:34, skipping insertion in model container [2020-11-22 12:56:34,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:34" (3/3) ... [2020-11-22 12:56:34,041 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032d.c [2020-11-22 12:56:34,050 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:56:34,054 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 12:56:34,079 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 12:56:34,104 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:56:34,104 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:56:34,104 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:56:34,104 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:56:34,104 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:56:34,104 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:56:34,105 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:56:34,105 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:56:34,117 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-11-22 12:56:34,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-22 12:56:34,122 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:34,123 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:34,123 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:34,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:34,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1058195810, now seen corresponding path program 1 times [2020-11-22 12:56:34,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:34,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [131247513] [2020-11-22 12:56:34,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 12:56:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:34,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:56:34,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:34,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:34,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:34,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:34,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [131247513] [2020-11-22 12:56:34,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:34,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:56:34,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356748095] [2020-11-22 12:56:34,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:56:34,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:34,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:56:34,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:56:34,366 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2020-11-22 12:56:34,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:34,389 INFO L93 Difference]: Finished difference Result 57 states and 85 transitions. [2020-11-22 12:56:34,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:56:34,391 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-11-22 12:56:34,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:34,401 INFO L225 Difference]: With dead ends: 57 [2020-11-22 12:56:34,402 INFO L226 Difference]: Without dead ends: 26 [2020-11-22 12:56:34,405 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:56:34,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-11-22 12:56:34,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-11-22 12:56:34,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-22 12:56:34,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2020-11-22 12:56:34,448 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 13 [2020-11-22 12:56:34,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:34,448 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-11-22 12:56:34,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:56:34,449 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2020-11-22 12:56:34,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-22 12:56:34,450 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:34,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:34,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:56:34,674 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:34,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:34,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1055488069, now seen corresponding path program 1 times [2020-11-22 12:56:34,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:34,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883004849] [2020-11-22 12:56:34,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 12:56:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:34,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-22 12:56:34,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:35,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:35,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:35,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:35,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883004849] [2020-11-22 12:56:35,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:35,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-22 12:56:35,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492707765] [2020-11-22 12:56:35,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 12:56:35,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:35,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 12:56:35,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 12:56:35,252 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand 8 states. [2020-11-22 12:56:35,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:35,566 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2020-11-22 12:56:35,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:56:35,569 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-11-22 12:56:35,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:35,570 INFO L225 Difference]: With dead ends: 34 [2020-11-22 12:56:35,570 INFO L226 Difference]: Without dead ends: 16 [2020-11-22 12:56:35,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-22 12:56:35,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-22 12:56:35,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-22 12:56:35,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-22 12:56:35,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-11-22 12:56:35,577 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 15 [2020-11-22 12:56:35,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:35,578 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-11-22 12:56:35,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 12:56:35,578 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-11-22 12:56:35,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-22 12:56:35,579 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:35,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:35,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:56:35,780 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:35,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:35,780 INFO L82 PathProgramCache]: Analyzing trace with hash 709099857, now seen corresponding path program 1 times [2020-11-22 12:56:35,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:35,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1961911416] [2020-11-22 12:56:35,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-22 12:56:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:56:36,018 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:56:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:56:36,230 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:56:36,308 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 12:56:36,308 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:56:36,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:56:36,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:56:36 BoogieIcfgContainer [2020-11-22 12:56:36,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:56:36,539 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:56:36,539 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:56:36,539 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:56:36,540 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:34" (3/4) ... [2020-11-22 12:56:36,542 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 12:56:36,595 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fb2b2595-4fd9-450b-83b1-bd5e461b358e/bin/utaipan/witness.graphml [2020-11-22 12:56:36,595 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:56:36,597 INFO L168 Benchmark]: Toolchain (without parser) took 3626.21 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 36.7 MB in the beginning and 51.5 MB in the end (delta: -14.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:36,597 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 58.7 MB. Free memory was 40.4 MB in the beginning and 40.4 MB in the end (delta: 31.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:36,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.01 ms. Allocated memory is still 58.7 MB. Free memory was 36.6 MB in the beginning and 40.0 MB in the end (delta: -3.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:36,598 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.00 ms. Allocated memory is still 58.7 MB. Free memory was 40.0 MB in the beginning and 38.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:36,599 INFO L168 Benchmark]: Boogie Preprocessor took 35.70 ms. Allocated memory is still 58.7 MB. Free memory was 38.2 MB in the beginning and 36.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:36,600 INFO L168 Benchmark]: RCFGBuilder took 607.05 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 36.6 MB in the beginning and 46.2 MB in the end (delta: -9.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:36,600 INFO L168 Benchmark]: TraceAbstraction took 2503.25 ms. Allocated memory is still 73.4 MB. Free memory was 45.7 MB in the beginning and 54.2 MB in the end (delta: -8.6 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:36,601 INFO L168 Benchmark]: Witness Printer took 56.21 ms. Allocated memory is still 73.4 MB. Free memory was 54.2 MB in the beginning and 52.0 MB in the end (delta: 2.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:36,617 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 58.7 MB. Free memory was 40.4 MB in the beginning and 40.4 MB in the end (delta: 31.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 375.01 ms. Allocated memory is still 58.7 MB. Free memory was 36.6 MB in the beginning and 40.0 MB in the end (delta: -3.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.00 ms. Allocated memory is still 58.7 MB. Free memory was 40.0 MB in the beginning and 38.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.70 ms. Allocated memory is still 58.7 MB. Free memory was 38.2 MB in the beginning and 36.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 607.05 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 36.6 MB in the beginning and 46.2 MB in the end (delta: -9.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2503.25 ms. Allocated memory is still 73.4 MB. Free memory was 45.7 MB in the beginning and 54.2 MB in the end (delta: -8.6 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. * Witness Printer took 56.21 ms. Allocated memory is still 73.4 MB. Free memory was 54.2 MB in the beginning and 52.0 MB in the end (delta: 2.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L88] double x = -1.0 / 0.0; [L17] __int32_t msw, exponent_less_1023; [L18] __uint32_t lsw; [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (msw) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (lsw) = ew_u.parts.lsw [L25] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L26] COND FALSE !(exponent_less_1023 < 20) [L40] COND TRUE exponent_less_1023 > 51 [L41] COND TRUE exponent_less_1023 == 1024 [L42] return x + x; [L89] double res = round_double(x); [L67] __int32_t hx, lx; [L69] ieee_double_shape_type ew_u; [L70] ew_u.value = (x) [L71] EXPR ew_u.parts.msw [L71] (hx) = ew_u.parts.msw [L72] EXPR ew_u.parts.lsw [L72] (lx) = ew_u.parts.lsw [L74] hx &= 0x7fffffff [L75] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L76] hx = 0x7ff00000 - hx [L77] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L92] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_1032d.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 44 SDslu, 6 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 52 ConstructedInterpolants, 5 QuantifiedInterpolants, 2332 SizeOfPredicates, 8 NumberOfNonLiveVariables, 110 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 proved your program to be incorrect! Received shutdown request...