./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float6.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_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float6.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/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 9ec220fd0064d8652998013027d97b204a648814 ........................................................................................................................................................................................................................................... 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_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float6.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/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 9ec220fd0064d8652998013027d97b204a648814 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:25:55,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:25:55,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:25:55,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:25:55,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:25:55,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:25:55,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:25:56,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:25:56,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:25:56,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:25:56,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:25:56,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:25:56,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:25:56,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:25:56,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:25:56,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:25:56,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:25:56,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:25:56,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:25:56,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:25:56,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:25:56,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:25:56,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:25:56,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:25:56,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:25:56,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:25:56,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:25:56,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:25:56,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:25:56,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:25:56,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:25:56,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:25:56,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:25:56,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:25:56,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:25:56,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:25:56,067 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:25:56,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:25:56,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:25:56,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:25:56,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:25:56,069 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:25:56,112 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:25:56,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:25:56,114 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:25:56,114 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:25:56,115 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:25:56,115 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:25:56,115 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:25:56,115 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:25:56,115 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:25:56,115 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:25:56,117 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:25:56,117 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:25:56,117 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:25:56,117 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:25:56,117 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:25:56,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:25:56,118 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:25:56,119 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:25:56,119 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:25:56,119 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:25:56,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:25:56,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:25:56,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:25:56,120 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:25:56,120 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:25:56,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:25:56,120 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:25:56,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:25:56,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:25:56,122 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:25:56,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:25:56,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:25:56,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:25:56,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:25:56,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:25:56,123 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:25:56,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:25:56,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:25:56,124 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:25:56,124 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:25:56,124 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_0294fc1b-0d2d-4196-a5d3-9484423e4b07/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ec220fd0064d8652998013027d97b204a648814 [2020-11-28 07:25:56,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:25:56,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:25:56,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:25:56,430 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:25:56,431 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:25:56,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float6.c [2020-11-28 07:25:56,514 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/data/98de011c2/07d2589fbb0a4b72bf032d1a9bf5b63a/FLAGac683d958 [2020-11-28 07:25:56,980 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:25:56,981 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/sv-benchmarks/c/floats-cbmc-regression/float6.c [2020-11-28 07:25:56,998 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/data/98de011c2/07d2589fbb0a4b72bf032d1a9bf5b63a/FLAGac683d958 [2020-11-28 07:25:57,463 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/data/98de011c2/07d2589fbb0a4b72bf032d1a9bf5b63a [2020-11-28 07:25:57,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:25:57,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:25:57,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:25:57,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:25:57,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:25:57,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:25:57" (1/1) ... [2020-11-28 07:25:57,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22e24634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:57, skipping insertion in model container [2020-11-28 07:25:57,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:25:57" (1/1) ... [2020-11-28 07:25:57,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:25:57,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:25:57,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:25:57,760 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:25:57,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:25:57,807 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:25:57,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:57 WrapperNode [2020-11-28 07:25:57,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:25:57,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:25:57,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:25:57,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:25:57,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:57" (1/1) ... [2020-11-28 07:25:57,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:57" (1/1) ... [2020-11-28 07:25:57,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:25:57,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:25:57,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:25:57,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:25:57,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:57" (1/1) ... [2020-11-28 07:25:57,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:57" (1/1) ... [2020-11-28 07:25:57,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:57" (1/1) ... [2020-11-28 07:25:57,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:57" (1/1) ... [2020-11-28 07:25:57,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:57" (1/1) ... [2020-11-28 07:25:57,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:57" (1/1) ... [2020-11-28 07:25:57,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:57" (1/1) ... [2020-11-28 07:25:57,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:25:57,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:25:57,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:25:57,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:25:57,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/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 [2020-11-28 07:25:57,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:25:57,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:25:57,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:25:57,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:25:58,585 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:25:58,586 INFO L298 CfgBuilder]: Removed 76 assume(true) statements. [2020-11-28 07:25:58,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:25:58 BoogieIcfgContainer [2020-11-28 07:25:58,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:25:58,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:25:58,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:25:58,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:25:58,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:25:57" (1/3) ... [2020-11-28 07:25:58,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@478e50bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:25:58, skipping insertion in model container [2020-11-28 07:25:58,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:57" (2/3) ... [2020-11-28 07:25:58,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@478e50bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:25:58, skipping insertion in model container [2020-11-28 07:25:58,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:25:58" (3/3) ... [2020-11-28 07:25:58,600 INFO L111 eAbstractionObserver]: Analyzing ICFG float6.c [2020-11-28 07:25:58,609 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:25:58,613 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2020-11-28 07:25:58,621 INFO L253 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2020-11-28 07:25:58,652 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:25:58,652 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:25:58,653 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:25:58,653 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:25:58,653 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:25:58,653 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:25:58,653 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:25:58,653 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:25:58,672 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states. [2020-11-28 07:25:58,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 07:25:58,676 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:25:58,676 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-28 07:25:58,677 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:25:58,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:25:58,682 INFO L82 PathProgramCache]: Analyzing trace with hash 397054, now seen corresponding path program 1 times [2020-11-28 07:25:58,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:25:58,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028587944] [2020-11-28 07:25:58,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:25:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:25:58,771 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:25:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:25:58,786 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:25:58,803 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:25:58,804 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:25:58,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:25:58,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:25:58 BoogieIcfgContainer [2020-11-28 07:25:58,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:25:58,824 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:25:58,825 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:25:58,825 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:25:58,825 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:25:58" (3/4) ... [2020-11-28 07:25:58,828 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 07:25:58,828 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:25:58,833 INFO L168 Benchmark]: Toolchain (without parser) took 1362.22 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 48.2 MB in the beginning and 61.2 MB in the end (delta: -13.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:58,835 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 86.0 MB. Free memory is still 64.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:25:58,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.75 ms. Allocated memory is still 86.0 MB. Free memory was 48.0 MB in the beginning and 62.0 MB in the end (delta: -14.0 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:58,839 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.07 ms. Allocated memory is still 86.0 MB. Free memory was 62.0 MB in the beginning and 60.2 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:25:58,840 INFO L168 Benchmark]: Boogie Preprocessor took 28.38 ms. Allocated memory is still 86.0 MB. Free memory was 60.1 MB in the beginning and 58.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:25:58,841 INFO L168 Benchmark]: RCFGBuilder took 707.17 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 58.6 MB in the beginning and 73.8 MB in the end (delta: -15.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:58,842 INFO L168 Benchmark]: TraceAbstraction took 230.88 ms. Allocated memory is still 117.4 MB. Free memory was 73.3 MB in the beginning and 61.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:58,843 INFO L168 Benchmark]: Witness Printer took 4.08 ms. Allocated memory is still 117.4 MB. Free memory is still 61.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:25:58,854 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 86.0 MB. Free memory is still 64.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 336.75 ms. Allocated memory is still 86.0 MB. Free memory was 48.0 MB in the beginning and 62.0 MB in the end (delta: -14.0 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.07 ms. Allocated memory is still 86.0 MB. Free memory was 62.0 MB in the beginning and 60.2 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.38 ms. Allocated memory is still 86.0 MB. Free memory was 60.1 MB in the beginning and 58.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 707.17 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 58.6 MB in the beginning and 73.8 MB in the end (delta: -15.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 230.88 ms. Allocated memory is still 117.4 MB. Free memory was 73.3 MB in the beginning and 61.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.08 ms. Allocated memory is still 117.4 MB. Free memory is still 61.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 9. Possible FailurePath: [L9] COND TRUE !(1.0!=2.0) [L4] __assert_fail("0", "float6.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 112 locations, 36 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=112occurred 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-a4ecdab [2020-11-28 07:26:01,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:26:01,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:26:01,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:26:01,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:26:01,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:26:01,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:26:01,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:26:01,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:26:01,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:26:01,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:26:01,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:26:01,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:26:01,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:26:01,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:26:01,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:26:01,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:26:01,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:26:01,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:26:01,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:26:01,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:26:01,359 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:26:01,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:26:01,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:26:01,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:26:01,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:26:01,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:26:01,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:26:01,367 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:26:01,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:26:01,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:26:01,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:26:01,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:26:01,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:26:01,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:26:01,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:26:01,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:26:01,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:26:01,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:26:01,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:26:01,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:26:01,377 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:26:01,412 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:26:01,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:26:01,413 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:26:01,414 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:26:01,414 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:26:01,414 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:26:01,414 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:26:01,414 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:26:01,415 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:26:01,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:26:01,416 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:26:01,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:26:01,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:26:01,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:26:01,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:26:01,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:26:01,417 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:26:01,417 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:26:01,417 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:26:01,417 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:26:01,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:26:01,418 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:26:01,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:26:01,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:26:01,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:26:01,419 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:26:01,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:26:01,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:26:01,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:26:01,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:26:01,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:26:01,420 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:26:01,421 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:26:01,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:26:01,422 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:26:01,422 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:26:01,423 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_0294fc1b-0d2d-4196-a5d3-9484423e4b07/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ec220fd0064d8652998013027d97b204a648814 [2020-11-28 07:26:01,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:26:01,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:26:01,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:26:01,804 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:26:01,805 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:26:01,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float6.c [2020-11-28 07:26:01,876 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/data/6a6eb5d24/33d7788628b942fdb60fac3ef45f4136/FLAG109b23f52 [2020-11-28 07:26:02,351 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:26:02,352 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/sv-benchmarks/c/floats-cbmc-regression/float6.c [2020-11-28 07:26:02,360 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/data/6a6eb5d24/33d7788628b942fdb60fac3ef45f4136/FLAG109b23f52 [2020-11-28 07:26:02,721 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/data/6a6eb5d24/33d7788628b942fdb60fac3ef45f4136 [2020-11-28 07:26:02,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:26:02,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:26:02,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:26:02,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:26:02,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:26:02,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:26:02" (1/1) ... [2020-11-28 07:26:02,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36bfdba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:02, skipping insertion in model container [2020-11-28 07:26:02,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:26:02" (1/1) ... [2020-11-28 07:26:02,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:26:02,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:26:02,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:26:02,941 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:26:02,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:26:02,997 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:26:02,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:02 WrapperNode [2020-11-28 07:26:02,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:26:02,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:26:02,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:26:02,999 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:26:03,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:02" (1/1) ... [2020-11-28 07:26:03,052 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:02" (1/1) ... [2020-11-28 07:26:03,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:26:03,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:26:03,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:26:03,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:26:03,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:02" (1/1) ... [2020-11-28 07:26:03,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:02" (1/1) ... [2020-11-28 07:26:03,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:02" (1/1) ... [2020-11-28 07:26:03,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:02" (1/1) ... [2020-11-28 07:26:03,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:02" (1/1) ... [2020-11-28 07:26:03,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:02" (1/1) ... [2020-11-28 07:26:03,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:02" (1/1) ... [2020-11-28 07:26:03,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:26:03,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:26:03,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:26:03,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:26:03,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/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 [2020-11-28 07:26:03,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:26:03,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:26:03,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:26:03,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:26:04,001 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:26:04,009 INFO L298 CfgBuilder]: Removed 76 assume(true) statements. [2020-11-28 07:26:04,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:26:04 BoogieIcfgContainer [2020-11-28 07:26:04,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:26:04,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:26:04,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:26:04,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:26:04,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:26:02" (1/3) ... [2020-11-28 07:26:04,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a1219ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:26:04, skipping insertion in model container [2020-11-28 07:26:04,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:02" (2/3) ... [2020-11-28 07:26:04,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a1219ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:26:04, skipping insertion in model container [2020-11-28 07:26:04,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:26:04" (3/3) ... [2020-11-28 07:26:04,024 INFO L111 eAbstractionObserver]: Analyzing ICFG float6.c [2020-11-28 07:26:04,035 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:26:04,049 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2020-11-28 07:26:04,075 INFO L253 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2020-11-28 07:26:04,120 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:26:04,120 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:26:04,120 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:26:04,120 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:26:04,120 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:26:04,120 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:26:04,121 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:26:04,121 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:26:04,151 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2020-11-28 07:26:04,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 07:26:04,155 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:26:04,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 07:26:04,156 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:26:04,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:26:04,162 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-11-28 07:26:04,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:26:04,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974383900] [2020-11-28 07:26:04,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/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 [2020-11-28 07:26:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:26:04,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 07:26:04,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:26:04,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:26:04,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:26:04,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:26:04,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974383900] [2020-11-28 07:26:04,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:26:04,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 07:26:04,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520103124] [2020-11-28 07:26:04,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:26:04,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:26:04,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:26:04,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:26:04,275 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 2 states. [2020-11-28 07:26:04,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:26:04,305 INFO L93 Difference]: Finished difference Result 219 states and 290 transitions. [2020-11-28 07:26:04,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:26:04,306 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-11-28 07:26:04,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:26:04,314 INFO L225 Difference]: With dead ends: 219 [2020-11-28 07:26:04,314 INFO L226 Difference]: Without dead ends: 68 [2020-11-28 07:26:04,337 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:26:04,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-28 07:26:04,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-11-28 07:26:04,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-28 07:26:04,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 67 transitions. [2020-11-28 07:26:04,368 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 67 transitions. Word has length 4 [2020-11-28 07:26:04,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:26:04,368 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 67 transitions. [2020-11-28 07:26:04,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:26:04,368 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 67 transitions. [2020-11-28 07:26:04,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 07:26:04,369 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:26:04,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:26:04,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:26:04,584 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:26:04,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:26:04,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1026561821, now seen corresponding path program 1 times [2020-11-28 07:26:04,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:26:04,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [185707576] [2020-11-28 07:26:04,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/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 [2020-11-28 07:26:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:26:04,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 07:26:04,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:26:04,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:26:04,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:26:04,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:26:04,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [185707576] [2020-11-28 07:26:04,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:26:04,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-28 07:26:04,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242059227] [2020-11-28 07:26:04,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:26:04,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:26:04,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:26:04,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:26:04,815 INFO L87 Difference]: Start difference. First operand 68 states and 67 transitions. Second operand 4 states. [2020-11-28 07:26:05,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:26:05,029 INFO L93 Difference]: Finished difference Result 68 states and 67 transitions. [2020-11-28 07:26:05,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:26:05,030 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-28 07:26:05,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:26:05,031 INFO L225 Difference]: With dead ends: 68 [2020-11-28 07:26:05,031 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:26:05,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:26:05,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:26:05,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:26:05,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:26:05,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:26:05,033 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2020-11-28 07:26:05,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:26:05,033 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:26:05,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:26:05,033 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:26:05,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:26:05,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 07:26:05,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:26:05,256 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,260 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,261 INFO L274 CegarLoopResult]: For program point L19-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,262 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,262 INFO L274 CegarLoopResult]: For program point L36-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,263 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:26:05,263 INFO L274 CegarLoopResult]: For program point L20-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,264 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,264 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,265 INFO L274 CegarLoopResult]: For program point L37-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,265 INFO L274 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,266 INFO L274 CegarLoopResult]: For program point L4-2(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,266 INFO L274 CegarLoopResult]: For program point L4-3(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,267 INFO L274 CegarLoopResult]: For program point L4-4(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,267 INFO L274 CegarLoopResult]: For program point L4-5(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,268 INFO L274 CegarLoopResult]: For program point L4-6(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,268 INFO L274 CegarLoopResult]: For program point L4-7(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,269 INFO L274 CegarLoopResult]: For program point L4-8(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,269 INFO L274 CegarLoopResult]: For program point L4-9(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,270 INFO L274 CegarLoopResult]: For program point L4-10(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,270 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,271 INFO L274 CegarLoopResult]: For program point L4-11(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,272 INFO L274 CegarLoopResult]: For program point L4-12(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,272 INFO L274 CegarLoopResult]: For program point L4-13(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,273 INFO L274 CegarLoopResult]: For program point L4-14(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,273 INFO L274 CegarLoopResult]: For program point L4-15(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,274 INFO L274 CegarLoopResult]: For program point L4-16(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,274 INFO L274 CegarLoopResult]: For program point L21-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,274 INFO L274 CegarLoopResult]: For program point L4-17(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,275 INFO L274 CegarLoopResult]: For program point L4-18(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,275 INFO L274 CegarLoopResult]: For program point L4-19(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,275 INFO L274 CegarLoopResult]: For program point L4-20(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,276 INFO L274 CegarLoopResult]: For program point L4-21(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,276 INFO L274 CegarLoopResult]: For program point L4-22(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,276 INFO L274 CegarLoopResult]: For program point L4-23(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,277 INFO L274 CegarLoopResult]: For program point L4-24(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,277 INFO L274 CegarLoopResult]: For program point L4-25(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,277 INFO L274 CegarLoopResult]: For program point L4-26(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,278 INFO L274 CegarLoopResult]: For program point L4-27(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,278 INFO L274 CegarLoopResult]: For program point L4-28(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,279 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,279 INFO L274 CegarLoopResult]: For program point L4-29(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,279 INFO L274 CegarLoopResult]: For program point L4-30(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,279 INFO L274 CegarLoopResult]: For program point L4-31(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,280 INFO L274 CegarLoopResult]: For program point L38-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,280 INFO L274 CegarLoopResult]: For program point L4-32(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,280 INFO L274 CegarLoopResult]: For program point L4-33(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,280 INFO L274 CegarLoopResult]: For program point L4-34(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,281 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,281 INFO L274 CegarLoopResult]: For program point L4-35(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,281 INFO L274 CegarLoopResult]: For program point L4-36(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,282 INFO L274 CegarLoopResult]: For program point L4-37(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,282 INFO L274 CegarLoopResult]: For program point L4-38(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,282 INFO L274 CegarLoopResult]: For program point L4-39(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,282 INFO L274 CegarLoopResult]: For program point L4-40(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,283 INFO L274 CegarLoopResult]: For program point L4-41(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,283 INFO L274 CegarLoopResult]: For program point L4-42(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,283 INFO L274 CegarLoopResult]: For program point L4-43(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,283 INFO L274 CegarLoopResult]: For program point L4-44(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,284 INFO L274 CegarLoopResult]: For program point L4-45(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,284 INFO L274 CegarLoopResult]: For program point L4-46(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,284 INFO L274 CegarLoopResult]: For program point L22-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,284 INFO L274 CegarLoopResult]: For program point L4-47(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,284 INFO L274 CegarLoopResult]: For program point L4-48(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,285 INFO L274 CegarLoopResult]: For program point L4-49(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,285 INFO L274 CegarLoopResult]: For program point L4-50(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,285 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,285 INFO L274 CegarLoopResult]: For program point L4-51(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,286 INFO L274 CegarLoopResult]: For program point L4-52(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,286 INFO L274 CegarLoopResult]: For program point L4-53(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,286 INFO L274 CegarLoopResult]: For program point L4-54(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,286 INFO L274 CegarLoopResult]: For program point L4-55(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,286 INFO L274 CegarLoopResult]: For program point L4-56(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,287 INFO L274 CegarLoopResult]: For program point L4-57(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,287 INFO L274 CegarLoopResult]: For program point L4-58(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,287 INFO L274 CegarLoopResult]: For program point L4-59(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,287 INFO L274 CegarLoopResult]: For program point L4-60(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,287 INFO L274 CegarLoopResult]: For program point L4-61(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,288 INFO L274 CegarLoopResult]: For program point L39-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,288 INFO L274 CegarLoopResult]: For program point L4-62(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,288 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,288 INFO L274 CegarLoopResult]: For program point L6(lines 6 50) no Hoare annotation was computed. [2020-11-28 07:26:05,288 INFO L274 CegarLoopResult]: For program point L4-63(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,289 INFO L274 CegarLoopResult]: For program point L4-64(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,289 INFO L274 CegarLoopResult]: For program point L4-65(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,289 INFO L274 CegarLoopResult]: For program point L4-66(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,289 INFO L274 CegarLoopResult]: For program point L4-67(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,289 INFO L274 CegarLoopResult]: For program point L4-68(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,289 INFO L274 CegarLoopResult]: For program point L4-69(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,290 INFO L274 CegarLoopResult]: For program point L4-70(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,290 INFO L274 CegarLoopResult]: For program point L4-71(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,290 INFO L274 CegarLoopResult]: For program point L23-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,290 INFO L274 CegarLoopResult]: For program point L40-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,290 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,291 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,291 INFO L274 CegarLoopResult]: For program point L24-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,291 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,291 INFO L274 CegarLoopResult]: For program point L41-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,291 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,291 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:26:05,292 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,292 INFO L274 CegarLoopResult]: For program point L25-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,292 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,292 INFO L274 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-11-28 07:26:05,292 INFO L274 CegarLoopResult]: For program point L42-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,293 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,293 INFO L274 CegarLoopResult]: For program point L9-2(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,293 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,293 INFO L274 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-11-28 07:26:05,293 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,293 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,294 INFO L274 CegarLoopResult]: For program point L43-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,294 INFO L274 CegarLoopResult]: For program point L10-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,294 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,294 INFO L274 CegarLoopResult]: For program point L44-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,294 INFO L274 CegarLoopResult]: For program point L11-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,294 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,295 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,295 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 07:26:05,295 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,295 INFO L274 CegarLoopResult]: For program point L45-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,295 INFO L274 CegarLoopResult]: For program point L12-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,295 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,295 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,296 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,296 INFO L274 CegarLoopResult]: For program point L46-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,296 INFO L274 CegarLoopResult]: For program point L13-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,296 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,296 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-11-28 07:26:05,296 INFO L274 CegarLoopResult]: For program point L30-2(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,297 INFO L274 CegarLoopResult]: For program point L47-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,297 INFO L274 CegarLoopResult]: For program point L14-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,297 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,297 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,297 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,297 INFO L274 CegarLoopResult]: For program point L48-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,297 INFO L274 CegarLoopResult]: For program point L15-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,298 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,298 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 07:26:05,298 INFO L274 CegarLoopResult]: For program point L32-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,298 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,298 INFO L274 CegarLoopResult]: For program point L16-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,298 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,298 INFO L274 CegarLoopResult]: For program point L33-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,299 INFO L274 CegarLoopResult]: For program point L17-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,299 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,299 INFO L274 CegarLoopResult]: For program point L34-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,299 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,299 INFO L274 CegarLoopResult]: For program point L18-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,299 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:26:05,299 INFO L274 CegarLoopResult]: For program point L35-1(lines 7 50) no Hoare annotation was computed. [2020-11-28 07:26:05,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:26:05 BoogieIcfgContainer [2020-11-28 07:26:05,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:26:05,306 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:26:05,306 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:26:05,306 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:26:05,306 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:26:04" (3/4) ... [2020-11-28 07:26:05,309 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:26:05,321 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 07:26:05,322 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 07:26:05,322 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 07:26:05,323 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:26:05,391 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0294fc1b-0d2d-4196-a5d3-9484423e4b07/bin/utaipan/witness.graphml [2020-11-28 07:26:05,391 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:26:05,393 INFO L168 Benchmark]: Toolchain (without parser) took 2665.71 ms. Allocated memory was 60.8 MB in the beginning and 94.4 MB in the end (delta: 33.6 MB). Free memory was 41.5 MB in the beginning and 43.6 MB in the end (delta: -2.1 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:26:05,394 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 60.8 MB. Free memory was 43.1 MB in the beginning and 43.0 MB in the end (delta: 50.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:26:05,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.09 ms. Allocated memory is still 60.8 MB. Free memory was 41.4 MB in the beginning and 30.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:26:05,394 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.91 ms. Allocated memory is still 60.8 MB. Free memory was 30.0 MB in the beginning and 43.5 MB in the end (delta: -13.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:26:05,395 INFO L168 Benchmark]: Boogie Preprocessor took 40.41 ms. Allocated memory is still 60.8 MB. Free memory was 43.5 MB in the beginning and 41.7 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:26:05,395 INFO L168 Benchmark]: RCFGBuilder took 893.46 ms. Allocated memory was 60.8 MB in the beginning and 94.4 MB in the end (delta: 33.6 MB). Free memory was 41.7 MB in the beginning and 63.0 MB in the end (delta: -21.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:26:05,396 INFO L168 Benchmark]: TraceAbstraction took 1292.60 ms. Allocated memory is still 94.4 MB. Free memory was 62.6 MB in the beginning and 48.4 MB in the end (delta: 14.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:26:05,396 INFO L168 Benchmark]: Witness Printer took 85.82 ms. Allocated memory is still 94.4 MB. Free memory was 48.4 MB in the beginning and 43.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:26:05,398 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 60.8 MB. Free memory was 43.1 MB in the beginning and 43.0 MB in the end (delta: 50.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 268.09 ms. Allocated memory is still 60.8 MB. Free memory was 41.4 MB in the beginning and 30.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.91 ms. Allocated memory is still 60.8 MB. Free memory was 30.0 MB in the beginning and 43.5 MB in the end (delta: -13.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.41 ms. Allocated memory is still 60.8 MB. Free memory was 43.5 MB in the beginning and 41.7 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 893.46 ms. Allocated memory was 60.8 MB in the beginning and 94.4 MB in the end (delta: 33.6 MB). Free memory was 41.7 MB in the beginning and 63.0 MB in the end (delta: -21.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1292.60 ms. Allocated memory is still 94.4 MB. Free memory was 62.6 MB in the beginning and 48.4 MB in the end (delta: 14.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * Witness Printer took 85.82 ms. Allocated memory is still 94.4 MB. Free memory was 48.4 MB in the beginning and 43.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 36 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 151 locations, 36 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 92 SDtfs, 17 SDslu, 38 SDs, 0 SdLazy, 21 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=151occurred 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, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 52 ConstructedInterpolants, 1 QuantifiedInterpolants, 1398 SizeOfPredicates, 6 NumberOfNonLiveVariables, 72 ConjunctsInSsa, 4 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 correct! Received shutdown request...