./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test_union_cast-1.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_6c944e84-ed6e-4b8e-b487-cfb0a351d132/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c944e84-ed6e-4b8e-b487-cfb0a351d132/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_6c944e84-ed6e-4b8e-b487-cfb0a351d132/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c944e84-ed6e-4b8e-b487-cfb0a351d132/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test_union_cast-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c944e84-ed6e-4b8e-b487-cfb0a351d132/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_6c944e84-ed6e-4b8e-b487-cfb0a351d132/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 baeb06bbbe614eb8454b39387a6a006762963b74 ...................................................................................................................................................................................................................................................................................... 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 06:44:18,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:44:18,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:44:18,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:44:18,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:44:18,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:44:18,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:44:18,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:44:18,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:44:18,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:44:18,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:44:18,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:44:18,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:44:18,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:44:18,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:44:18,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:44:18,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:44:18,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:44:18,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:44:18,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:44:18,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:44:18,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:44:18,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:44:18,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:44:18,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:44:18,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:44:18,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:44:18,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:44:18,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:44:18,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:44:18,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:44:18,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:44:18,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:44:18,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:44:18,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:44:18,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:44:18,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:44:18,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:44:18,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:44:18,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:44:18,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:44:18,417 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c944e84-ed6e-4b8e-b487-cfb0a351d132/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 06:44:18,442 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:44:18,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:44:18,443 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:44:18,443 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:44:18,443 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:44:18,444 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:44:18,444 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 06:44:18,444 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:44:18,444 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:44:18,444 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 06:44:18,445 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 06:44:18,445 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:44:18,445 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 06:44:18,445 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 06:44:18,449 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 06:44:18,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:44:18,451 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:44:18,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 06:44:18,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:44:18,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:44:18,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:44:18,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:44:18,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:44:18,453 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:44:18,453 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:44:18,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:44:18,453 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:44:18,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:44:18,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:44:18,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:44:18,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:44:18,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:44:18,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:44:18,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:44:18,458 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 06:44:18,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 06:44:18,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:44:18,460 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:44:18,460 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:44:18,460 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_6c944e84-ed6e-4b8e-b487-cfb0a351d132/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c944e84-ed6e-4b8e-b487-cfb0a351d132/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> baeb06bbbe614eb8454b39387a6a006762963b74 [2021-10-13 06:44:18,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:44:18,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:44:18,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:44:18,734 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:44:18,735 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:44:18,736 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c944e84-ed6e-4b8e-b487-cfb0a351d132/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/ldv-regression/test_union_cast-1.i [2021-10-13 06:44:18,818 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c944e84-ed6e-4b8e-b487-cfb0a351d132/bin/utaipan-q2qaUkNPG8/data/55773aeed/bc2ad14a4e11412294ae62bd6ad4e456/FLAG1863e919b [2021-10-13 06:44:19,301 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:44:19,301 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c944e84-ed6e-4b8e-b487-cfb0a351d132/sv-benchmarks/c/ldv-regression/test_union_cast-1.i [2021-10-13 06:44:19,308 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c944e84-ed6e-4b8e-b487-cfb0a351d132/bin/utaipan-q2qaUkNPG8/data/55773aeed/bc2ad14a4e11412294ae62bd6ad4e456/FLAG1863e919b [2021-10-13 06:44:19,685 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c944e84-ed6e-4b8e-b487-cfb0a351d132/bin/utaipan-q2qaUkNPG8/data/55773aeed/bc2ad14a4e11412294ae62bd6ad4e456 [2021-10-13 06:44:19,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:44:19,690 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:44:19,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:44:19,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:44:19,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:44:19,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:44:19" (1/1) ... [2021-10-13 06:44:19,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58682471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:19, skipping insertion in model container [2021-10-13 06:44:19,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:44:19" (1/1) ... [2021-10-13 06:44:19,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:44:19,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:44:19,872 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_6c944e84-ed6e-4b8e-b487-cfb0a351d132/sv-benchmarks/c/ldv-regression/test_union_cast-1.i[817,830] [2021-10-13 06:44:19,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:44:19,891 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:44:19,905 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_6c944e84-ed6e-4b8e-b487-cfb0a351d132/sv-benchmarks/c/ldv-regression/test_union_cast-1.i[817,830] [2021-10-13 06:44:19,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:44:19,927 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:44:19,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:19 WrapperNode [2021-10-13 06:44:19,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:44:19,930 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:44:19,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:44:19,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:44:19,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:19" (1/1) ... [2021-10-13 06:44:19,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:19" (1/1) ... [2021-10-13 06:44:19,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:44:19,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:44:19,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:44:19,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:44:19,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:19" (1/1) ... [2021-10-13 06:44:19,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:19" (1/1) ... [2021-10-13 06:44:19,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:19" (1/1) ... [2021-10-13 06:44:19,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:19" (1/1) ... [2021-10-13 06:44:19,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:19" (1/1) ... [2021-10-13 06:44:19,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:19" (1/1) ... [2021-10-13 06:44:19,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:19" (1/1) ... [2021-10-13 06:44:19,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:44:19,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:44:19,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:44:19,994 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:44:19,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:19" (1/1) ... [2021-10-13 06:44:20,004 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:44:20,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c944e84-ed6e-4b8e-b487-cfb0a351d132/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:44:20,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c944e84-ed6e-4b8e-b487-cfb0a351d132/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:44:20,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c944e84-ed6e-4b8e-b487-cfb0a351d132/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:44:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 06:44:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:44:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 06:44:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-13 06:44:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:44:20,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:44:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 06:44:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 06:44:20,319 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:44:20,319 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-13 06:44:20,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:44:20 BoogieIcfgContainer [2021-10-13 06:44:20,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:44:20,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:44:20,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:44:20,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:44:20,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:44:19" (1/3) ... [2021-10-13 06:44:20,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@821f5d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:44:20, skipping insertion in model container [2021-10-13 06:44:20,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:19" (2/3) ... [2021-10-13 06:44:20,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@821f5d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:44:20, skipping insertion in model container [2021-10-13 06:44:20,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:44:20" (3/3) ... [2021-10-13 06:44:20,349 INFO L111 eAbstractionObserver]: Analyzing ICFG test_union_cast-1.i [2021-10-13 06:44:20,354 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:44:20,354 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 06:44:20,406 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:44:20,412 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 06:44:20,412 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 06:44:20,425 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 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 06:44:20,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 06:44:20,429 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:20,430 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 06:44:20,430 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:44:20,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:20,435 INFO L82 PathProgramCache]: Analyzing trace with hash 46290, now seen corresponding path program 1 times [2021-10-13 06:44:20,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 06:44:20,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008648953] [2021-10-13 06:44:20,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:20,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 06:44:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:20,664 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 06:44:20,664 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 06:44:20,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008648953] [2021-10-13 06:44:20,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008648953] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 06:44:20,666 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:44:20,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 06:44:20,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854985567] [2021-10-13 06:44:20,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 06:44:20,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 06:44:20,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 06:44:20,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 06:44:20,702 INFO L87 Difference]: Start difference. First operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 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) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 06:44:20,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:44:20,726 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2021-10-13 06:44:20,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:44:20,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2021-10-13 06:44:20,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:44:20,736 INFO L225 Difference]: With dead ends: 8 [2021-10-13 06:44:20,736 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 06:44:20,741 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 06:44:20,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 06:44:20,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 06:44:20,766 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 06:44:20,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 06:44:20,768 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2021-10-13 06:44:20,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:44:20,769 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 06:44:20,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 06:44:20,770 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 06:44:20,770 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 06:44:20,772 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:44:20,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 06:44:20,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 06:44:20,780 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:44:20,787 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 06:44:20,787 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 06:44:20,800 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-10-13 06:44:20,802 INFO L857 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-10-13 06:44:20,802 INFO L857 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2021-10-13 06:44:20,803 INFO L853 garLoopResultBuilder]: At program point L14-2(lines 13 18) the Hoare annotation is: (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2021-10-13 06:44:20,810 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 06:44:20,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:44:20 BoogieIcfgContainer [2021-10-13 06:44:20,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 06:44:20,833 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 06:44:20,833 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 06:44:20,834 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 06:44:20,834 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:44:20" (3/4) ... [2021-10-13 06:44:20,838 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 06:44:20,853 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-13 06:44:20,854 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-13 06:44:20,855 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-13 06:44:20,855 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 06:44:20,919 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c944e84-ed6e-4b8e-b487-cfb0a351d132/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 06:44:20,921 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 06:44:20,922 INFO L168 Benchmark]: Toolchain (without parser) took 1231.14 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 58.8 MB in the beginning and 89.4 MB in the end (delta: -30.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:44:20,923 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 94.4 MB. Free memory was 64.5 MB in the beginning and 64.5 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:44:20,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.49 ms. Allocated memory is still 94.4 MB. Free memory was 58.6 MB in the beginning and 69.5 MB in the end (delta: -11.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:20,924 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.78 ms. Allocated memory is still 94.4 MB. Free memory was 69.5 MB in the beginning and 68.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:20,924 INFO L168 Benchmark]: Boogie Preprocessor took 23.84 ms. Allocated memory is still 94.4 MB. Free memory was 68.0 MB in the beginning and 67.1 MB in the end (delta: 908.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:44:20,925 INFO L168 Benchmark]: RCFGBuilder took 346.41 ms. Allocated memory is still 94.4 MB. Free memory was 67.1 MB in the beginning and 57.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:20,926 INFO L168 Benchmark]: TraceAbstraction took 484.40 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 56.6 MB in the beginning and 89.1 MB in the end (delta: -32.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:20,926 INFO L168 Benchmark]: Witness Printer took 87.87 ms. Allocated memory is still 113.2 MB. Free memory was 89.1 MB in the beginning and 89.4 MB in the end (delta: -361.5 kB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:20,929 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 94.4 MB. Free memory was 64.5 MB in the beginning and 64.5 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 236.49 ms. Allocated memory is still 94.4 MB. Free memory was 58.6 MB in the beginning and 69.5 MB in the end (delta: -11.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.78 ms. Allocated memory is still 94.4 MB. Free memory was 69.5 MB in the beginning and 68.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.84 ms. Allocated memory is still 94.4 MB. Free memory was 68.0 MB in the beginning and 67.1 MB in the end (delta: 908.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 346.41 ms. Allocated memory is still 94.4 MB. Free memory was 67.1 MB in the beginning and 57.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 484.40 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 56.6 MB in the beginning and 89.1 MB in the end (delta: -32.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. * Witness Printer took 87.87 ms. Allocated memory is still 113.2 MB. Free memory was 89.1 MB in the beginning and 89.4 MB in the end (delta: -361.5 kB). Peak memory consumption was 3.6 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: 15]: 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, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 405.3ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 8.0ms, AutomataDifference: 58.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 12.8ms, InitialAbstractionConstructionTime: 8.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 10.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 4 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 3.7ms HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 7.1ms SsaConstructionTime, 44.0ms SatisfiabilityAnalysisTime, 84.6ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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: 13]: Loop Invariant Derived loop invariant: !(0 == cond) RESULT: Ultimate proved your program to be correct! [2021-10-13 06:44:20,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c944e84-ed6e-4b8e-b487-cfb0a351d132/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...