./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe033_tso.opt.i --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_d9c06b8b-df2e-46f7-b309-af2f75f75eb6/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d9c06b8b-df2e-46f7-b309-af2f75f75eb6/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d9c06b8b-df2e-46f7-b309-af2f75f75eb6/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d9c06b8b-df2e-46f7-b309-af2f75f75eb6/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe033_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d9c06b8b-df2e-46f7-b309-af2f75f75eb6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d9c06b8b-df2e-46f7-b309-af2f75f75eb6/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 51e6a13673efe5b33c2463d1fc46db9521e3a5a8 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:56:51,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:56:51,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:56:51,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:56:51,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:56:51,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:56:51,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:56:51,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:56:51,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:56:51,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:56:51,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:56:51,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:56:51,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:56:51,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:56:51,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:56:51,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:56:51,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:56:51,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:56:51,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:56:51,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:56:51,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:56:51,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:56:51,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:56:51,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:56:51,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:56:51,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:56:51,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:56:51,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:56:51,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:56:51,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:56:51,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:56:51,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:56:51,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:56:51,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:56:51,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:56:51,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:56:51,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:56:51,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:56:51,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:56:51,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:56:51,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:56:51,875 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d9c06b8b-df2e-46f7-b309-af2f75f75eb6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:56:51,929 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:56:51,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:56:51,931 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:56:51,931 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:56:51,931 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:56:51,932 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:56:51,932 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:56:51,932 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:56:51,932 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:56:51,932 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:56:51,934 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:56:51,934 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:56:51,934 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:56:51,934 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:56:51,934 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:56:51,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:56:51,935 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:56:51,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:56:51,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:56:51,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:56:51,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:56:51,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:56:51,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:56:51,937 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:56:51,937 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:56:51,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:56:51,937 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:56:51,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:56:51,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:56:51,940 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:56:51,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:56:51,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:56:51,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:56:51,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:56:51,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:56:51,941 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:56:51,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:56:51,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:56:51,942 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:56:51,942 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:56:51,942 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_d9c06b8b-df2e-46f7-b309-af2f75f75eb6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d9c06b8b-df2e-46f7-b309-af2f75f75eb6/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51e6a13673efe5b33c2463d1fc46db9521e3a5a8 [2020-11-22 12:56:52,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:56:52,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:56:52,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:56:52,356 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:56:52,357 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:56:52,358 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d9c06b8b-df2e-46f7-b309-af2f75f75eb6/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe033_tso.opt.i [2020-11-22 12:56:52,451 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d9c06b8b-df2e-46f7-b309-af2f75f75eb6/bin/utaipan/data/984060459/24008655443f4a81ab720d78f4b26475/FLAG73128d816 [2020-11-22 12:56:53,050 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:56:53,055 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d9c06b8b-df2e-46f7-b309-af2f75f75eb6/sv-benchmarks/c/pthread-wmm/safe033_tso.opt.i [2020-11-22 12:56:53,086 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d9c06b8b-df2e-46f7-b309-af2f75f75eb6/bin/utaipan/data/984060459/24008655443f4a81ab720d78f4b26475/FLAG73128d816 [2020-11-22 12:56:53,329 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d9c06b8b-df2e-46f7-b309-af2f75f75eb6/bin/utaipan/data/984060459/24008655443f4a81ab720d78f4b26475 [2020-11-22 12:56:53,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:56:53,334 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:56:53,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:53,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:56:53,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:56:53,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:53" (1/1) ... [2020-11-22 12:56:53,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1530918b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:53, skipping insertion in model container [2020-11-22 12:56:53,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:53" (1/1) ... [2020-11-22 12:56:53,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:56:53,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:56:53,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:53,864 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:56:53,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:54,016 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:56:54,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:54 WrapperNode [2020-11-22 12:56:54,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:54,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:56:54,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:56:54,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:56:54,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:54" (1/1) ... [2020-11-22 12:56:54,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:54" (1/1) ... [2020-11-22 12:56:54,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:56:54,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:56:54,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:56:54,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:56:54,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:54" (1/1) ... [2020-11-22 12:56:54,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:54" (1/1) ... [2020-11-22 12:56:54,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:54" (1/1) ... [2020-11-22 12:56:54,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:54" (1/1) ... [2020-11-22 12:56:54,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:54" (1/1) ... [2020-11-22 12:56:54,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:54" (1/1) ... [2020-11-22 12:56:54,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:54" (1/1) ... [2020-11-22 12:56:54,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:56:54,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:56:54,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:56:54,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:56:54,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d9c06b8b-df2e-46f7-b309-af2f75f75eb6/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:56:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 12:56:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-22 12:56:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:56:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 12:56:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-22 12:56:54,188 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-22 12:56:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-22 12:56:54,189 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-22 12:56:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 12:56:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-22 12:56:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:56:54,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:56:54,191 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-22 12:56:54,596 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:56:54,596 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-22 12:56:54,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:54 BoogieIcfgContainer [2020-11-22 12:56:54,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:56:54,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:56:54,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:56:54,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:56:54,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:56:53" (1/3) ... [2020-11-22 12:56:54,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17268cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:54, skipping insertion in model container [2020-11-22 12:56:54,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:54" (2/3) ... [2020-11-22 12:56:54,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17268cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:54, skipping insertion in model container [2020-11-22 12:56:54,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:54" (3/3) ... [2020-11-22 12:56:54,615 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.opt.i [2020-11-22 12:56:54,622 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-22 12:56:54,623 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:56:54,627 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 12:56:54,627 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-22 12:56:54,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:56:54,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:56:54,648 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:56:54,648 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:56:54,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:56:54,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:56:54,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:56:54,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:56:54,649 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:56:54,649 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:56:54,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:56:54,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:56:54,652 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:56:54,652 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:56:54,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:56:54,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:56:54,661 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:56:54,661 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:56:54,661 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:56:54,661 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:56:54,663 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-22 12:56:54,674 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 12:56:54,694 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:56:54,694 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:56:54,694 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:56:54,694 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:56:54,694 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:56:54,694 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:56:54,694 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:56:54,695 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:56:54,709 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-22 12:56:54,713 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 64 transitions, 138 flow [2020-11-22 12:56:54,717 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 64 transitions, 138 flow [2020-11-22 12:56:54,719 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 68 places, 64 transitions, 138 flow [2020-11-22 12:56:54,781 INFO L129 PetriNetUnfolder]: 3/62 cut-off events. [2020-11-22 12:56:54,781 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-22 12:56:54,784 INFO L80 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 62 events. 3/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-11-22 12:56:54,786 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-11-22 12:56:57,029 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2020-11-22 12:56:57,185 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-11-22 12:56:57,499 INFO L131 LiptonReduction]: Checked pairs total: 1620 [2020-11-22 12:56:57,500 INFO L133 LiptonReduction]: Total number of compositions: 67 [2020-11-22 12:56:57,504 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-11-22 12:56:57,513 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-11-22 12:56:57,515 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-11-22 12:56:57,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-22 12:56:57,521 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:57,521 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-22 12:56:57,522 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:57,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:57,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1340707883, now seen corresponding path program 1 times [2020-11-22 12:56:57,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:56:57,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700504706] [2020-11-22 12:56:57,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:56:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:57,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:57,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700504706] [2020-11-22 12:56:57,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:57,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-22 12:56:57,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982454917] [2020-11-22 12:56:57,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:56:57,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:56:57,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:56:57,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:56:57,776 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-11-22 12:56:57,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:57,815 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-11-22 12:56:57,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:56:57,817 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-22 12:56:57,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:57,827 INFO L225 Difference]: With dead ends: 72 [2020-11-22 12:56:57,827 INFO L226 Difference]: Without dead ends: 56 [2020-11-22 12:56:57,834 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:56:57,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-11-22 12:56:57,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-11-22 12:56:57,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-22 12:56:57,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 114 transitions. [2020-11-22 12:56:57,897 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 114 transitions. Word has length 6 [2020-11-22 12:56:57,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:57,898 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 114 transitions. [2020-11-22 12:56:57,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:56:57,898 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 114 transitions. [2020-11-22 12:56:57,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-22 12:56:57,900 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:57,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:57,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 12:56:57,905 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:57,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:57,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1368723103, now seen corresponding path program 1 times [2020-11-22 12:56:57,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:56:57,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198314620] [2020-11-22 12:56:57,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:56:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:58,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:58,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198314620] [2020-11-22 12:56:58,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:58,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 12:56:58,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835021295] [2020-11-22 12:56:58,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:56:58,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:56:58,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:56:58,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:56:58,076 INFO L87 Difference]: Start difference. First operand 56 states and 114 transitions. Second operand 4 states. [2020-11-22 12:56:58,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:58,110 INFO L93 Difference]: Finished difference Result 56 states and 99 transitions. [2020-11-22 12:56:58,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:56:58,111 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-22 12:56:58,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:58,112 INFO L225 Difference]: With dead ends: 56 [2020-11-22 12:56:58,112 INFO L226 Difference]: Without dead ends: 40 [2020-11-22 12:56:58,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:56:58,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-11-22 12:56:58,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-11-22 12:56:58,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-22 12:56:58,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-11-22 12:56:58,120 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 7 [2020-11-22 12:56:58,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:58,120 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-11-22 12:56:58,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:56:58,121 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-11-22 12:56:58,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-22 12:56:58,122 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:58,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:58,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 12:56:58,122 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:58,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:58,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1081707285, now seen corresponding path program 1 times [2020-11-22 12:56:58,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:56:58,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162709905] [2020-11-22 12:56:58,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:56:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:58,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:58,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162709905] [2020-11-22 12:56:58,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:58,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 12:56:58,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035199571] [2020-11-22 12:56:58,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:56:58,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:56:58,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:56:58,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:56:58,198 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-11-22 12:56:58,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:58,257 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2020-11-22 12:56:58,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:56:58,257 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-22 12:56:58,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:58,258 INFO L225 Difference]: With dead ends: 35 [2020-11-22 12:56:58,258 INFO L226 Difference]: Without dead ends: 28 [2020-11-22 12:56:58,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:56:58,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-22 12:56:58,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-11-22 12:56:58,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-22 12:56:58,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions. [2020-11-22 12:56:58,263 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 42 transitions. Word has length 9 [2020-11-22 12:56:58,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:58,263 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 42 transitions. [2020-11-22 12:56:58,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:56:58,264 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2020-11-22 12:56:58,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-22 12:56:58,264 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:58,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:58,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-22 12:56:58,265 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:58,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:58,265 INFO L82 PathProgramCache]: Analyzing trace with hash 370642726, now seen corresponding path program 1 times [2020-11-22 12:56:58,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:56:58,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117941559] [2020-11-22 12:56:58,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:56:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:58,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:58,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117941559] [2020-11-22 12:56:58,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:58,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 12:56:58,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916232931] [2020-11-22 12:56:58,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:56:58,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:56:58,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:56:58,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:56:58,352 INFO L87 Difference]: Start difference. First operand 28 states and 42 transitions. Second operand 4 states. [2020-11-22 12:56:58,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:58,379 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions. [2020-11-22 12:56:58,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:56:58,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-22 12:56:58,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:58,380 INFO L225 Difference]: With dead ends: 35 [2020-11-22 12:56:58,380 INFO L226 Difference]: Without dead ends: 22 [2020-11-22 12:56:58,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:56:58,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-22 12:56:58,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-22 12:56:58,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-22 12:56:58,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-11-22 12:56:58,384 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 12 [2020-11-22 12:56:58,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:58,384 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-11-22 12:56:58,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:56:58,384 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-11-22 12:56:58,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-22 12:56:58,385 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:58,385 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:58,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-22 12:56:58,385 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:58,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:58,386 INFO L82 PathProgramCache]: Analyzing trace with hash -7959878, now seen corresponding path program 2 times [2020-11-22 12:56:58,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:56:58,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395424778] [2020-11-22 12:56:58,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:56:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:58,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:58,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395424778] [2020-11-22 12:56:58,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:58,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 12:56:58,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87488942] [2020-11-22 12:56:58,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:56:58,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:56:58,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:56:58,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:56:58,448 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 3 states. [2020-11-22 12:56:58,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:58,458 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-11-22 12:56:58,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:56:58,460 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-22 12:56:58,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:58,460 INFO L225 Difference]: With dead ends: 21 [2020-11-22 12:56:58,460 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 12:56:58,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:56:58,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 12:56:58,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 12:56:58,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 12:56:58,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 12:56:58,461 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-22 12:56:58,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:58,462 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 12:56:58,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:56:58,462 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 12:56:58,462 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 12:56:58,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-22 12:56:58,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:56:58 BasicIcfg [2020-11-22 12:56:58,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:56:58,466 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:56:58,466 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:56:58,466 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:56:58,466 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:54" (3/4) ... [2020-11-22 12:56:58,474 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 12:56:58,481 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-11-22 12:56:58,481 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-11-22 12:56:58,489 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-22 12:56:58,490 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-22 12:56:58,490 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 12:56:58,490 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 12:56:58,548 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d9c06b8b-df2e-46f7-b309-af2f75f75eb6/bin/utaipan/witness.graphml [2020-11-22 12:56:58,548 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:56:58,550 INFO L168 Benchmark]: Toolchain (without parser) took 5215.05 ms. Allocated memory was 90.2 MB in the beginning and 138.4 MB in the end (delta: 48.2 MB). Free memory was 57.3 MB in the beginning and 54.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 50.8 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:58,550 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 90.2 MB. Free memory was 67.4 MB in the beginning and 67.3 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:58,551 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.86 ms. Allocated memory is still 90.2 MB. Free memory was 57.1 MB in the beginning and 48.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:58,551 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.65 ms. Allocated memory is still 90.2 MB. Free memory was 48.0 MB in the beginning and 46.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:58,552 INFO L168 Benchmark]: Boogie Preprocessor took 42.17 ms. Allocated memory is still 90.2 MB. Free memory was 46.3 MB in the beginning and 45.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:58,552 INFO L168 Benchmark]: RCFGBuilder took 485.89 ms. Allocated memory is still 90.2 MB. Free memory was 44.6 MB in the beginning and 63.5 MB in the end (delta: -18.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:58,553 INFO L168 Benchmark]: TraceAbstraction took 3864.72 ms. Allocated memory was 90.2 MB in the beginning and 138.4 MB in the end (delta: 48.2 MB). Free memory was 62.9 MB in the beginning and 58.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 51.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:58,553 INFO L168 Benchmark]: Witness Printer took 82.83 ms. Allocated memory is still 138.4 MB. Free memory was 58.1 MB in the beginning and 54.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:58,556 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 90.2 MB. Free memory was 67.4 MB in the beginning and 67.3 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 680.86 ms. Allocated memory is still 90.2 MB. Free memory was 57.1 MB in the beginning and 48.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.65 ms. Allocated memory is still 90.2 MB. Free memory was 48.0 MB in the beginning and 46.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.17 ms. Allocated memory is still 90.2 MB. Free memory was 46.3 MB in the beginning and 45.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 485.89 ms. Allocated memory is still 90.2 MB. Free memory was 44.6 MB in the beginning and 63.5 MB in the end (delta: -18.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3864.72 ms. Allocated memory was 90.2 MB in the beginning and 138.4 MB in the end (delta: 48.2 MB). Free memory was 62.9 MB in the beginning and 58.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 51.5 MB. Max. memory is 16.1 GB. * Witness Printer took 82.83 ms. Allocated memory is still 138.4 MB. Free memory was 58.1 MB in the beginning and 54.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 565 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 30 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.7s, 68 PlacesBefore, 22 PlacesAfterwards, 64 TransitionsBefore, 15 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 3 ChoiceCompositions, 67 TotalNumberOfCompositions, 1620 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 58 SDtfs, 56 SDslu, 50 SDs, 0 SdLazy, 32 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 815 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...