./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/terminator_03-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/terminator_03-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/bin/utaipan-q2qaUkNPG8 --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 67505ab4d8c5a0470c6c2902a08f5f9b7fa098ac ............................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 08:10:32,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:10:32,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:10:32,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:10:32,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:10:32,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:10:32,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:10:32,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:10:32,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:10:32,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:10:32,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:10:32,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:10:32,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:10:32,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:10:32,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:10:32,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:10:32,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:10:32,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:10:32,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:10:32,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:10:32,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:10:32,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:10:32,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:10:32,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:10:32,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:10:32,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:10:32,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:10:32,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:10:32,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:10:32,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:10:32,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:10:32,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:10:32,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:10:32,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:10:32,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:10:32,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:10:32,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:10:32,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:10:32,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:10:32,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:10:32,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:10:32,997 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 08:10:33,027 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:10:33,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:10:33,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:10:33,028 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:10:33,028 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:10:33,028 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:10:33,028 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 08:10:33,029 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:10:33,029 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:10:33,029 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 08:10:33,029 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 08:10:33,029 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:10:33,030 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 08:10:33,030 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 08:10:33,030 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 08:10:33,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:10:33,031 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:10:33,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 08:10:33,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:10:33,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:10:33,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 08:10:33,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:10:33,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 08:10:33,032 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:10:33,032 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:10:33,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 08:10:33,033 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:10:33,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 08:10:33,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:10:33,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:10:33,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:10:33,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:10:33,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:10:33,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 08:10:33,042 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 08:10:33,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 08:10:33,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 08:10:33,044 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:10:33,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:10:33,044 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_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67505ab4d8c5a0470c6c2902a08f5f9b7fa098ac [2021-10-13 08:10:33,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:10:33,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:10:33,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:10:33,377 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:10:33,377 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:10:33,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/loops/terminator_03-2.i [2021-10-13 08:10:33,453 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/bin/utaipan-q2qaUkNPG8/data/8d2a37f3c/b8ed0e18aaf746309ae6c30ab8d9daad/FLAG0f844c44b [2021-10-13 08:10:33,908 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:10:33,910 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/sv-benchmarks/c/loops/terminator_03-2.i [2021-10-13 08:10:33,919 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/bin/utaipan-q2qaUkNPG8/data/8d2a37f3c/b8ed0e18aaf746309ae6c30ab8d9daad/FLAG0f844c44b [2021-10-13 08:10:34,279 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/bin/utaipan-q2qaUkNPG8/data/8d2a37f3c/b8ed0e18aaf746309ae6c30ab8d9daad [2021-10-13 08:10:34,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:10:34,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:10:34,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:10:34,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:10:34,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:10:34,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:10:34" (1/1) ... [2021-10-13 08:10:34,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44d0b71c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:10:34, skipping insertion in model container [2021-10-13 08:10:34,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:10:34" (1/1) ... [2021-10-13 08:10:34,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:10:34,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:10:34,451 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/sv-benchmarks/c/loops/terminator_03-2.i[902,915] [2021-10-13 08:10:34,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:10:34,480 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 08:10:34,492 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/sv-benchmarks/c/loops/terminator_03-2.i[902,915] [2021-10-13 08:10:34,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:10:34,508 INFO L208 MainTranslator]: Completed translation [2021-10-13 08:10:34,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:10:34 WrapperNode [2021-10-13 08:10:34,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:10:34,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 08:10:34,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 08:10:34,511 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 08:10:34,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:10:34" (1/1) ... [2021-10-13 08:10:34,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:10:34" (1/1) ... [2021-10-13 08:10:34,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 08:10:34,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 08:10:34,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 08:10:34,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 08:10:34,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:10:34" (1/1) ... [2021-10-13 08:10:34,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:10:34" (1/1) ... [2021-10-13 08:10:34,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:10:34" (1/1) ... [2021-10-13 08:10:34,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:10:34" (1/1) ... [2021-10-13 08:10:34,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:10:34" (1/1) ... [2021-10-13 08:10:34,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:10:34" (1/1) ... [2021-10-13 08:10:34,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:10:34" (1/1) ... [2021-10-13 08:10:34,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 08:10:34,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 08:10:34,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 08:10:34,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 08:10:34,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:10:34" (1/1) ... [2021-10-13 08:10:34,577 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:10:34,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:10:34,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 08:10:34,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 08:10:34,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 08:10:34,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 08:10:34,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 08:10:34,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 08:10:34,924 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 08:10:34,924 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 08:10:34,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:10:34 BoogieIcfgContainer [2021-10-13 08:10:34,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 08:10:34,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 08:10:34,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 08:10:34,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 08:10:34,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:10:34" (1/3) ... [2021-10-13 08:10:34,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c4361c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:10:34, skipping insertion in model container [2021-10-13 08:10:34,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:10:34" (2/3) ... [2021-10-13 08:10:34,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c4361c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:10:34, skipping insertion in model container [2021-10-13 08:10:34,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:10:34" (3/3) ... [2021-10-13 08:10:34,939 INFO L111 eAbstractionObserver]: Analyzing ICFG terminator_03-2.i [2021-10-13 08:10:34,948 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 08:10:34,948 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 08:10:35,007 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 08:10:35,016 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 08:10:35,016 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 08:10:35,033 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:10:35,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 08:10:35,038 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:10:35,039 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 08:10:35,039 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:10:35,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:10:35,045 INFO L82 PathProgramCache]: Analyzing trace with hash 2068504419, now seen corresponding path program 1 times [2021-10-13 08:10:35,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:10:35,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537540663] [2021-10-13 08:10:35,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:10:35,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:10:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:10:35,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:10:35,355 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 08:10:35,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537540663] [2021-10-13 08:10:35,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537540663] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 08:10:35,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:10:35,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 08:10:35,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218188894] [2021-10-13 08:10:35,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:10:35,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 08:10:35,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:10:35,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:10:35,394 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:10:35,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:10:35,438 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-10-13 08:10:35,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:10:35,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-13 08:10:35,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:10:35,445 INFO L225 Difference]: With dead ends: 16 [2021-10-13 08:10:35,446 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 08:10:35,448 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:10:35,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 08:10:35,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 08:10:35,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:10:35,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 08:10:35,471 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-10-13 08:10:35,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:10:35,471 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 08:10:35,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:10:35,472 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 08:10:35,472 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 08:10:35,474 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:10:35,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 08:10:35,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 08:10:35,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:10:35,482 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:10:35,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:10:35,512 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 08:10:35,513 INFO L857 garLoopResultBuilder]: For program point L29(lines 29 33) no Hoare annotation was computed. [2021-10-13 08:10:35,513 INFO L857 garLoopResultBuilder]: For program point L29-1(lines 29 33) no Hoare annotation was computed. [2021-10-13 08:10:35,513 INFO L857 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-10-13 08:10:35,514 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 08:10:35,514 INFO L857 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2021-10-13 08:10:35,514 INFO L860 garLoopResultBuilder]: At program point L30-2(lines 30 32) the Hoare annotation is: true [2021-10-13 08:10:35,520 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-13 08:10:35,520 INFO L857 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2021-10-13 08:10:35,521 INFO L853 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: (and (or (<= ULTIMATE.start_main_~y~0 0) (<= 100 ULTIMATE.start_main_~x~0)) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-13 08:10:35,521 INFO L860 garLoopResultBuilder]: At program point L35(lines 25 36) the Hoare annotation is: true [2021-10-13 08:10:35,525 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 08:10:35,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:10:35 BoogieIcfgContainer [2021-10-13 08:10:35,544 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 08:10:35,548 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 08:10:35,548 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 08:10:35,549 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 08:10:35,549 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:10:34" (3/4) ... [2021-10-13 08:10:35,551 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 08:10:35,559 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-13 08:10:35,559 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 08:10:35,559 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 08:10:35,560 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 08:10:35,598 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 08:10:35,598 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 08:10:35,600 INFO L168 Benchmark]: Toolchain (without parser) took 1315.55 ms. Allocated memory is still 96.5 MB. Free memory was 55.5 MB in the beginning and 34.0 MB in the end (delta: 21.4 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. [2021-10-13 08:10:35,600 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 96.5 MB. Free memory is still 71.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:10:35,601 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.47 ms. Allocated memory is still 96.5 MB. Free memory was 55.3 MB in the beginning and 71.3 MB in the end (delta: -16.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 08:10:35,602 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.07 ms. Allocated memory is still 96.5 MB. Free memory was 71.3 MB in the beginning and 69.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:10:35,602 INFO L168 Benchmark]: Boogie Preprocessor took 19.46 ms. Allocated memory is still 96.5 MB. Free memory was 69.9 MB in the beginning and 69.1 MB in the end (delta: 866.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:10:35,603 INFO L168 Benchmark]: RCFGBuilder took 364.47 ms. Allocated memory is still 96.5 MB. Free memory was 68.8 MB in the beginning and 58.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:10:35,603 INFO L168 Benchmark]: TraceAbstraction took 616.27 ms. Allocated memory is still 96.5 MB. Free memory was 58.3 MB in the beginning and 36.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:10:35,604 INFO L168 Benchmark]: Witness Printer took 50.06 ms. Allocated memory is still 96.5 MB. Free memory was 36.1 MB in the beginning and 34.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:10:35,607 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 96.5 MB. Free memory is still 71.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 224.47 ms. Allocated memory is still 96.5 MB. Free memory was 55.3 MB in the beginning and 71.3 MB in the end (delta: -16.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.07 ms. Allocated memory is still 96.5 MB. Free memory was 71.3 MB in the beginning and 69.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.46 ms. Allocated memory is still 96.5 MB. Free memory was 69.9 MB in the beginning and 69.1 MB in the end (delta: 866.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 364.47 ms. Allocated memory is still 96.5 MB. Free memory was 68.8 MB in the beginning and 58.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 616.27 ms. Allocated memory is still 96.5 MB. Free memory was 58.3 MB in the beginning and 36.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 50.06 ms. Allocated memory is still 96.5 MB. Free memory was 36.1 MB in the beginning and 34.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 520.0ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 8.7ms, AutomataDifference: 84.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 37.7ms, InitialAbstractionConstructionTime: 12.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 10 SDtfs, 7 SDslu, 9 SDs, 0 SdLazy, 7 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 8.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 14 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 7.2ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 24.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 14.8ms SsaConstructionTime, 42.8ms SatisfiabilityAnalysisTime, 167.5ms InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (y <= 0 || 100 <= x) && !(0 == cond) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 08:10:35,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dcafabd-aa6c-4b99-abb1-d82f2d687e09/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...