./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/square_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_4.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/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 903ca868ca7711e93ab2999f02bf985edb50eb0c ................................................................................................................................................................................................................................................. 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_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_4.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/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 903ca868ca7711e93ab2999f02bf985edb50eb0c ..................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 18:37:37,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:37:37,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:37:37,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:37:37,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:37:37,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:37:37,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:37:37,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:37:37,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:37:37,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:37:37,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:37:37,061 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:37:37,061 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:37:37,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:37:37,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:37:37,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:37:37,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:37:37,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:37:37,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:37:37,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:37:37,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:37:37,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:37:37,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:37:37,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:37:37,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:37:37,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:37:37,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:37:37,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:37:37,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:37:37,083 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:37:37,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:37:37,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:37:37,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:37:37,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:37:37,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:37:37,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:37:37,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:37:37,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:37:37,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:37:37,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:37:37,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:37:37,090 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 18:37:37,112 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:37:37,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:37:37,113 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:37:37,113 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:37:37,113 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:37:37,114 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:37:37,114 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 18:37:37,114 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:37:37,114 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:37:37,114 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 18:37:37,114 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 18:37:37,115 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:37:37,115 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 18:37:37,115 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 18:37:37,115 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 18:37:37,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:37:37,116 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 18:37:37,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 18:37:37,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 18:37:37,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:37:37,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 18:37:37,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:37:37,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 18:37:37,117 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 18:37:37,117 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 18:37:37,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 18:37:37,118 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:37:37,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 18:37:37,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:37:37,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:37:37,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:37:37,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:37:37,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:37:37,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 18:37:37,119 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 18:37:37,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 18:37:37,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 18:37:37,120 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:37:37,120 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:37:37,120 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_cdb82712-0775-433c-a294-7382ce025a23/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 903ca868ca7711e93ab2999f02bf985edb50eb0c [2020-12-09 18:37:37,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:37:37,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:37:37,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:37:37,316 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:37:37,316 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:37:37,317 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/../../sv-benchmarks/c/floats-cdfpl/square_4.i [2020-12-09 18:37:37,358 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/data/489a78cc2/44452b36a70e498096754e3ac8dc3639/FLAG8f6585577 [2020-12-09 18:37:37,731 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:37:37,731 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/sv-benchmarks/c/floats-cdfpl/square_4.i [2020-12-09 18:37:37,737 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/data/489a78cc2/44452b36a70e498096754e3ac8dc3639/FLAG8f6585577 [2020-12-09 18:37:37,746 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/data/489a78cc2/44452b36a70e498096754e3ac8dc3639 [2020-12-09 18:37:37,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:37:37,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:37:37,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:37:37,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:37:37,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:37:37,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:37:37" (1/1) ... [2020-12-09 18:37:37,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da8ce3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:37, skipping insertion in model container [2020-12-09 18:37:37,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:37:37" (1/1) ... [2020-12-09 18:37:37,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:37:37,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:37:37,871 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/sv-benchmarks/c/floats-cdfpl/square_4.i[1131,1144] [2020-12-09 18:37:37,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:37:37,881 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 18:37:37,892 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/sv-benchmarks/c/floats-cdfpl/square_4.i[1131,1144] [2020-12-09 18:37:37,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:37:37,903 INFO L208 MainTranslator]: Completed translation [2020-12-09 18:37:37,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:37 WrapperNode [2020-12-09 18:37:37,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 18:37:37,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 18:37:37,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 18:37:37,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 18:37:37,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:37" (1/1) ... [2020-12-09 18:37:37,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:37" (1/1) ... [2020-12-09 18:37:37,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 18:37:37,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 18:37:37,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 18:37:37,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 18:37:37,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:37" (1/1) ... [2020-12-09 18:37:37,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:37" (1/1) ... [2020-12-09 18:37:37,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:37" (1/1) ... [2020-12-09 18:37:37,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:37" (1/1) ... [2020-12-09 18:37:37,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:37" (1/1) ... [2020-12-09 18:37:37,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:37" (1/1) ... [2020-12-09 18:37:37,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:37" (1/1) ... [2020-12-09 18:37:37,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 18:37:37,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 18:37:37,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 18:37:37,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 18:37:37,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/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 [2020-12-09 18:37:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 18:37:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 18:37:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 18:37:37,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 18:37:38,173 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 18:37:38,173 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-09 18:37:38,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:37:38 BoogieIcfgContainer [2020-12-09 18:37:38,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 18:37:38,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 18:37:38,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 18:37:38,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 18:37:38,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:37:37" (1/3) ... [2020-12-09 18:37:38,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@396f0fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:37:38, skipping insertion in model container [2020-12-09 18:37:38,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:37" (2/3) ... [2020-12-09 18:37:38,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@396f0fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:37:38, skipping insertion in model container [2020-12-09 18:37:38,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:37:38" (3/3) ... [2020-12-09 18:37:38,181 INFO L111 eAbstractionObserver]: Analyzing ICFG square_4.i [2020-12-09 18:37:38,191 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 18:37:38,194 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 18:37:38,203 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 18:37:38,222 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 18:37:38,222 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 18:37:38,222 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 18:37:38,222 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 18:37:38,222 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 18:37:38,223 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 18:37:38,223 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 18:37:38,223 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 18:37:38,232 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-12-09 18:37:38,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-09 18:37:38,236 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:37:38,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-09 18:37:38,237 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:37:38,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:37:38,241 INFO L82 PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times [2020-12-09 18:37:38,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 18:37:38,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916287253] [2020-12-09 18:37:38,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 18:37:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 18:37:38,330 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 18:37:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 18:37:38,345 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 18:37:38,360 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 18:37:38,360 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 18:37:38,361 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 18:37:38,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:37:38 BoogieIcfgContainer [2020-12-09 18:37:38,375 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 18:37:38,376 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 18:37:38,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 18:37:38,376 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 18:37:38,376 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:37:38" (3/4) ... [2020-12-09 18:37:38,379 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 18:37:38,379 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 18:37:38,380 INFO L168 Benchmark]: Toolchain (without parser) took 630.09 ms. Allocated memory is still 94.4 MB. Free memory was 72.7 MB in the beginning and 51.4 MB in the end (delta: 21.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2020-12-09 18:37:38,381 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 69.2 MB. Free memory is still 44.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:37:38,382 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.06 ms. Allocated memory is still 94.4 MB. Free memory was 72.3 MB in the beginning and 62.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 18:37:38,382 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.81 ms. Allocated memory is still 94.4 MB. Free memory was 62.7 MB in the beginning and 61.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:37:38,383 INFO L168 Benchmark]: Boogie Preprocessor took 13.01 ms. Allocated memory is still 94.4 MB. Free memory was 61.5 MB in the beginning and 60.6 MB in the end (delta: 915.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:37:38,384 INFO L168 Benchmark]: RCFGBuilder took 235.09 ms. Allocated memory is still 94.4 MB. Free memory was 60.2 MB in the beginning and 64.1 MB in the end (delta: -3.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 18:37:38,384 INFO L168 Benchmark]: TraceAbstraction took 199.04 ms. Allocated memory is still 94.4 MB. Free memory was 63.5 MB in the beginning and 52.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 18:37:38,385 INFO L168 Benchmark]: Witness Printer took 3.20 ms. Allocated memory is still 94.4 MB. Free memory was 52.0 MB in the beginning and 51.4 MB in the end (delta: 621.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:37:38,388 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 69.2 MB. Free memory is still 44.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 153.06 ms. Allocated memory is still 94.4 MB. Free memory was 72.3 MB in the beginning and 62.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 21.81 ms. Allocated memory is still 94.4 MB. Free memory was 62.7 MB in the beginning and 61.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 13.01 ms. Allocated memory is still 94.4 MB. Free memory was 61.5 MB in the beginning and 60.6 MB in the end (delta: 915.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 235.09 ms. Allocated memory is still 94.4 MB. Free memory was 60.2 MB in the beginning and 64.1 MB in the end (delta: -3.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 199.04 ms. Allocated memory is still 94.4 MB. Free memory was 63.5 MB in the beginning and 52.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.20 ms. Allocated memory is still 94.4 MB. Free memory was 52.0 MB in the beginning and 51.4 MB in the end (delta: 621.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 29]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 28, overapproximation of someBinaryArithmeticFLOAToperation at line 26. Possible FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L23] float x = IN; [L25-L26] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; [L28] COND TRUE !(result >= 0.0f && result < 1.39844f) [L29] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 0.2.0-7b2dab5 [2020-12-09 18:37:39,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:37:39,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:37:39,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:37:39,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:37:39,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:37:39,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:37:39,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:37:39,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:37:39,963 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:37:39,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:37:39,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:37:39,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:37:39,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:37:39,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:37:39,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:37:39,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:37:39,969 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:37:39,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:37:39,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:37:39,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:37:39,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:37:39,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:37:39,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:37:39,980 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:37:39,980 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:37:39,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:37:39,981 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:37:39,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:37:39,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:37:39,983 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:37:39,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:37:39,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:37:39,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:37:39,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:37:39,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:37:39,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:37:39,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:37:39,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:37:39,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:37:39,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:37:39,989 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 18:37:40,018 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:37:40,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:37:40,020 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:37:40,020 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:37:40,020 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:37:40,020 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:37:40,020 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:37:40,021 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:37:40,021 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:37:40,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:37:40,022 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 18:37:40,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 18:37:40,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:37:40,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 18:37:40,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:37:40,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 18:37:40,023 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 18:37:40,023 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 18:37:40,023 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 18:37:40,024 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 18:37:40,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 18:37:40,024 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:37:40,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 18:37:40,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:37:40,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 18:37:40,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:37:40,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:37:40,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:37:40,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:37:40,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 18:37:40,026 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 18:37:40,026 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 18:37:40,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 18:37:40,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:37:40,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:37:40,027 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_cdb82712-0775-433c-a294-7382ce025a23/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 903ca868ca7711e93ab2999f02bf985edb50eb0c [2020-12-09 18:37:40,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:37:40,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:37:40,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:37:40,276 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:37:40,277 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:37:40,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/../../sv-benchmarks/c/floats-cdfpl/square_4.i [2020-12-09 18:37:40,326 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/data/d0bfbe650/f08114feba144938a57b16a60e2f6b03/FLAG068271ca2 [2020-12-09 18:37:40,790 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:37:40,790 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/sv-benchmarks/c/floats-cdfpl/square_4.i [2020-12-09 18:37:40,796 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/data/d0bfbe650/f08114feba144938a57b16a60e2f6b03/FLAG068271ca2 [2020-12-09 18:37:40,807 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/data/d0bfbe650/f08114feba144938a57b16a60e2f6b03 [2020-12-09 18:37:40,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:37:40,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:37:40,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:37:40,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:37:40,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:37:40,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:37:40" (1/1) ... [2020-12-09 18:37:40,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58c4c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:40, skipping insertion in model container [2020-12-09 18:37:40,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:37:40" (1/1) ... [2020-12-09 18:37:40,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:37:40,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:37:40,938 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/sv-benchmarks/c/floats-cdfpl/square_4.i[1131,1144] [2020-12-09 18:37:40,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:37:40,950 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 18:37:40,962 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/sv-benchmarks/c/floats-cdfpl/square_4.i[1131,1144] [2020-12-09 18:37:40,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:37:40,974 INFO L208 MainTranslator]: Completed translation [2020-12-09 18:37:40,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:40 WrapperNode [2020-12-09 18:37:40,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 18:37:40,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 18:37:40,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 18:37:40,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 18:37:40,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:40" (1/1) ... [2020-12-09 18:37:40,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:40" (1/1) ... [2020-12-09 18:37:41,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 18:37:41,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 18:37:41,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 18:37:41,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 18:37:41,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:40" (1/1) ... [2020-12-09 18:37:41,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:40" (1/1) ... [2020-12-09 18:37:41,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:40" (1/1) ... [2020-12-09 18:37:41,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:40" (1/1) ... [2020-12-09 18:37:41,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:40" (1/1) ... [2020-12-09 18:37:41,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:40" (1/1) ... [2020-12-09 18:37:41,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:40" (1/1) ... [2020-12-09 18:37:41,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 18:37:41,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 18:37:41,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 18:37:41,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 18:37:41,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/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 [2020-12-09 18:37:41,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 18:37:41,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 18:37:41,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 18:37:41,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 18:37:43,362 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 18:37:43,362 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-09 18:37:43,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:37:43 BoogieIcfgContainer [2020-12-09 18:37:43,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 18:37:43,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 18:37:43,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 18:37:43,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 18:37:43,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:37:40" (1/3) ... [2020-12-09 18:37:43,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dafe969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:37:43, skipping insertion in model container [2020-12-09 18:37:43,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:37:40" (2/3) ... [2020-12-09 18:37:43,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dafe969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:37:43, skipping insertion in model container [2020-12-09 18:37:43,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:37:43" (3/3) ... [2020-12-09 18:37:43,370 INFO L111 eAbstractionObserver]: Analyzing ICFG square_4.i [2020-12-09 18:37:43,381 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 18:37:43,383 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 18:37:43,391 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 18:37:43,408 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 18:37:43,408 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 18:37:43,408 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 18:37:43,408 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 18:37:43,408 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 18:37:43,408 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 18:37:43,408 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 18:37:43,408 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 18:37:43,416 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-12-09 18:37:43,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 18:37:43,419 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:37:43,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 18:37:43,420 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:37:43,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:37:43,423 INFO L82 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2020-12-09 18:37:43,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:37:43,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1096772366] [2020-12-09 18:37:43,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/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 [2020-12-09 18:37:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:37:43,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 18:37:43,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:37:43,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:37:43,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:37:43,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1096772366] [2020-12-09 18:37:43,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:37:43,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 18:37:43,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83924629] [2020-12-09 18:37:43,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 18:37:43,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:37:43,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 18:37:43,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 18:37:43,952 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2020-12-09 18:37:43,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:37:43,962 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-12-09 18:37:43,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 18:37:43,963 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-09 18:37:43,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:37:43,968 INFO L225 Difference]: With dead ends: 19 [2020-12-09 18:37:43,968 INFO L226 Difference]: Without dead ends: 7 [2020-12-09 18:37:43,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 18:37:43,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-12-09 18:37:43,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-12-09 18:37:43,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-12-09 18:37:43,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2020-12-09 18:37:43,990 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2020-12-09 18:37:43,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:37:43,990 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2020-12-09 18:37:43,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 18:37:43,990 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-12-09 18:37:43,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 18:37:43,991 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:37:43,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 18:37:44,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 18:37:44,192 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:37:44,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:37:44,192 INFO L82 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2020-12-09 18:37:44,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:37:44,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [415061351] [2020-12-09 18:37:44,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/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 [2020-12-09 18:49:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:49:27,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 18:49:27,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:49:30,238 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (fp.lt ULTIMATE.start_main_~IN~0 .cse0) (fp.geq ULTIMATE.start_main_~IN~0 (_ +zero 8 24)) (= c_ULTIMATE.start_main_~result~0 (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) ULTIMATE.start_main_~IN~0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2020-12-09 18:49:32,300 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 18:49:42,628 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (_ +zero 8 24))) (fp.lt ULTIMATE.start_main_~IN~0 .cse0) (fp.geq ULTIMATE.start_main_~IN~0 (_ +zero 8 24))))) (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 34961.0 25000.0)))) (fp.lt ULTIMATE.start_main_~IN~0 .cse1) (fp.geq ULTIMATE.start_main_~IN~0 (_ +zero 8 24)))))) is different from false [2020-12-09 18:49:44,693 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (_ +zero 8 24))) (fp.lt ULTIMATE.start_main_~IN~0 .cse0) (fp.geq ULTIMATE.start_main_~IN~0 (_ +zero 8 24))))) (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 34961.0 25000.0)))) (fp.lt ULTIMATE.start_main_~IN~0 .cse1) (fp.geq ULTIMATE.start_main_~IN~0 (_ +zero 8 24)))))) is different from true [2020-12-09 18:49:44,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:49:44,694 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:49:44,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [415061351] [2020-12-09 18:49:44,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:49:44,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 18:49:44,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162958197] [2020-12-09 18:49:44,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 18:49:44,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:49:44,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 18:49:44,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=12, Unknown=3, NotChecked=14, Total=42 [2020-12-09 18:49:44,697 INFO L87 Difference]: Start difference. First operand 7 states and 6 transitions. Second operand 7 states. [2020-12-09 18:49:44,929 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 13 [2020-12-09 18:49:47,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:49:47,118 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2020-12-09 18:49:47,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 18:49:47,183 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2020-12-09 18:49:47,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:49:47,183 INFO L225 Difference]: With dead ends: 7 [2020-12-09 18:49:47,183 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 18:49:47,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=18, Invalid=17, Unknown=3, NotChecked=18, Total=56 [2020-12-09 18:49:47,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 18:49:47,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 18:49:47,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 18:49:47,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 18:49:47,185 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-12-09 18:49:47,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:49:47,185 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 18:49:47,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 18:49:47,185 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 18:49:47,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 18:49:47,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 18:49:47,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 18:49:47,424 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 18:49:47,424 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 18:49:47,424 INFO L265 CegarLoopResult]: At program point L31(lines 18 32) the Hoare annotation is: true [2020-12-09 18:49:47,424 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 18:49:47,424 INFO L262 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-12-09 18:49:47,424 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 18:49:47,424 INFO L262 CegarLoopResult]: For program point L28(lines 28 29) no Hoare annotation was computed. [2020-12-09 18:49:47,424 INFO L262 CegarLoopResult]: For program point L28-2(lines 28 29) no Hoare annotation was computed. [2020-12-09 18:49:47,425 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 29) no Hoare annotation was computed. [2020-12-09 18:49:47,425 INFO L262 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-12-09 18:49:47,425 INFO L262 CegarLoopResult]: For program point L14(lines 14 16) no Hoare annotation was computed. [2020-12-09 18:49:47,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:49:47 BoogieIcfgContainer [2020-12-09 18:49:47,431 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 18:49:47,432 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 18:49:47,432 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 18:49:47,432 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 18:49:47,433 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:37:43" (3/4) ... [2020-12-09 18:49:47,436 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 18:49:47,447 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 18:49:47,447 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 18:49:47,447 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 18:49:47,447 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 18:49:47,468 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cdb82712-0775-433c-a294-7382ce025a23/bin/utaipan/witness.graphml [2020-12-09 18:49:47,468 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 18:49:47,469 INFO L168 Benchmark]: Toolchain (without parser) took 726658.19 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 50.8 MB in the beginning and 60.6 MB in the end (delta: -9.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2020-12-09 18:49:47,469 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 67.1 MB. Free memory is still 49.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:49:47,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.90 ms. Allocated memory is still 67.1 MB. Free memory was 50.6 MB in the beginning and 40.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 18:49:47,470 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.28 ms. Allocated memory is still 67.1 MB. Free memory was 40.3 MB in the beginning and 51.2 MB in the end (delta: -10.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:49:47,470 INFO L168 Benchmark]: Boogie Preprocessor took 23.00 ms. Allocated memory is still 67.1 MB. Free memory was 51.2 MB in the beginning and 50.2 MB in the end (delta: 978.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:49:47,471 INFO L168 Benchmark]: RCFGBuilder took 2325.96 ms. Allocated memory is still 67.1 MB. Free memory was 50.1 MB in the beginning and 39.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 18:49:47,471 INFO L168 Benchmark]: TraceAbstraction took 724066.83 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 38.6 MB in the beginning and 63.4 MB in the end (delta: -24.7 MB). Peak memory consumption was 20.2 kB. Max. memory is 16.1 GB. [2020-12-09 18:49:47,472 INFO L168 Benchmark]: Witness Printer took 35.90 ms. Allocated memory is still 90.2 MB. Free memory was 63.4 MB in the beginning and 60.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:49:47,474 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 67.1 MB. Free memory is still 49.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 162.90 ms. Allocated memory is still 67.1 MB. Free memory was 50.6 MB in the beginning and 40.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.28 ms. Allocated memory is still 67.1 MB. Free memory was 40.3 MB in the beginning and 51.2 MB in the end (delta: -10.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.00 ms. Allocated memory is still 67.1 MB. Free memory was 51.2 MB in the beginning and 50.2 MB in the end (delta: 978.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2325.96 ms. Allocated memory is still 67.1 MB. Free memory was 50.1 MB in the beginning and 39.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 724066.83 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 38.6 MB in the beginning and 63.4 MB in the end (delta: -24.7 MB). Peak memory consumption was 20.2 kB. Max. memory is 16.1 GB. * Witness Printer took 35.90 ms. Allocated memory is still 90.2 MB. Free memory was 63.4 MB in the beginning and 60.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 29]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 723.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 3 SDslu, 0 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 704.0s SatisfiabilityAnalysisTime, 16.8s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 2 QuantifiedInterpolants, 1280 SizeOfPredicates, 6 NumberOfNonLiveVariables, 52 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 correct! Received shutdown request...