./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invariants/eq2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d107545-204a-4741-aa54-16dd13f73315/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d107545-204a-4741-aa54-16dd13f73315/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d107545-204a-4741-aa54-16dd13f73315/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d107545-204a-4741-aa54-16dd13f73315/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invariants/eq2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d107545-204a-4741-aa54-16dd13f73315/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d107545-204a-4741-aa54-16dd13f73315/bin/utaipan-tZwUujhuQw --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 dcea0dc6513769e1c97ce958104bfe8a3ecb0a7a215514736cf79a424aff71bc ....................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:13:44,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:13:44,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:13:44,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:13:44,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:13:44,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:13:44,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:13:44,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:13:44,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:13:44,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:13:44,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:13:44,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:13:44,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:13:44,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:13:44,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:13:44,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:13:44,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:13:44,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:13:44,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:13:44,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:13:44,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:13:44,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:13:44,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:13:44,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:13:44,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:13:44,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:13:44,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:13:44,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:13:44,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:13:44,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:13:44,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:13:44,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:13:44,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:13:44,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:13:44,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:13:44,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:13:44,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:13:44,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:13:44,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:13:44,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:13:44,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:13:44,704 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d107545-204a-4741-aa54-16dd13f73315/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-20 05:13:44,729 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:13:44,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:13:44,730 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:13:44,730 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:13:44,731 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:13:44,731 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:13:44,731 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:13:44,731 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:13:44,732 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:13:44,732 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:13:44,732 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:13:44,732 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:13:44,733 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:13:44,733 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:13:44,733 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:13:44,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:13:44,734 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:13:44,734 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:13:44,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:13:44,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:13:44,735 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:13:44,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:13:44,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:13:44,736 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:13:44,736 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:13:44,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:13:44,737 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:13:44,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:13:44,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:13:44,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:13:44,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:13:44,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:13:44,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:13:44,738 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:13:44,739 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:13:44,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:13:44,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:13:44,739 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:13:44,740 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:13:44,740 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_7d107545-204a-4741-aa54-16dd13f73315/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d107545-204a-4741-aa54-16dd13f73315/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcea0dc6513769e1c97ce958104bfe8a3ecb0a7a215514736cf79a424aff71bc [2021-10-20 05:13:45,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:13:45,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:13:45,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:13:45,096 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:13:45,097 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:13:45,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d107545-204a-4741-aa54-16dd13f73315/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/loop-invariants/eq2.c [2021-10-20 05:13:45,187 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d107545-204a-4741-aa54-16dd13f73315/bin/utaipan-tZwUujhuQw/data/1ce7ade8b/f6b006c25b4547a5b53165ca7c881428/FLAG177243ea1 [2021-10-20 05:13:45,713 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:13:45,714 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d107545-204a-4741-aa54-16dd13f73315/sv-benchmarks/c/loop-invariants/eq2.c [2021-10-20 05:13:45,724 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d107545-204a-4741-aa54-16dd13f73315/bin/utaipan-tZwUujhuQw/data/1ce7ade8b/f6b006c25b4547a5b53165ca7c881428/FLAG177243ea1 [2021-10-20 05:13:46,072 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d107545-204a-4741-aa54-16dd13f73315/bin/utaipan-tZwUujhuQw/data/1ce7ade8b/f6b006c25b4547a5b53165ca7c881428 [2021-10-20 05:13:46,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:13:46,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:13:46,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:13:46,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:13:46,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:13:46,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:13:46" (1/1) ... [2021-10-20 05:13:46,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@481329c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:46, skipping insertion in model container [2021-10-20 05:13:46,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:13:46" (1/1) ... [2021-10-20 05:13:46,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:13:46,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:13:46,287 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_7d107545-204a-4741-aa54-16dd13f73315/sv-benchmarks/c/loop-invariants/eq2.c[364,377] [2021-10-20 05:13:46,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:13:46,312 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:13:46,328 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_7d107545-204a-4741-aa54-16dd13f73315/sv-benchmarks/c/loop-invariants/eq2.c[364,377] [2021-10-20 05:13:46,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:13:46,350 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:13:46,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:46 WrapperNode [2021-10-20 05:13:46,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:13:46,353 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:13:46,353 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:13:46,353 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:13:46,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:46" (1/1) ... [2021-10-20 05:13:46,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:46" (1/1) ... [2021-10-20 05:13:46,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:13:46,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:13:46,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:13:46,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:13:46,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:46" (1/1) ... [2021-10-20 05:13:46,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:46" (1/1) ... [2021-10-20 05:13:46,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:46" (1/1) ... [2021-10-20 05:13:46,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:46" (1/1) ... [2021-10-20 05:13:46,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:46" (1/1) ... [2021-10-20 05:13:46,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:46" (1/1) ... [2021-10-20 05:13:46,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:46" (1/1) ... [2021-10-20 05:13:46,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:13:46,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:13:46,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:13:46,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:13:46,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:46" (1/1) ... [2021-10-20 05:13:46,440 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:13:46,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d107545-204a-4741-aa54-16dd13f73315/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:13:46,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d107545-204a-4741-aa54-16dd13f73315/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:13:46,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d107545-204a-4741-aa54-16dd13f73315/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:13:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:13:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:13:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-20 05:13:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:13:46,839 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:13:46,840 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-20 05:13:46,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:13:46 BoogieIcfgContainer [2021-10-20 05:13:46,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:13:46,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:13:46,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:13:46,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:13:46,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:13:46" (1/3) ... [2021-10-20 05:13:46,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de4a578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:13:46, skipping insertion in model container [2021-10-20 05:13:46,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:46" (2/3) ... [2021-10-20 05:13:46,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de4a578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:13:46, skipping insertion in model container [2021-10-20 05:13:46,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:13:46" (3/3) ... [2021-10-20 05:13:46,865 INFO L111 eAbstractionObserver]: Analyzing ICFG eq2.c [2021-10-20 05:13:46,871 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:13:46,886 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-20 05:13:46,956 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:13:46,965 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, mAutomataTypeConcurrency=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 [2021-10-20 05:13:46,965 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-20 05:13:46,985 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2021-10-20 05:13:46,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-20 05:13:46,996 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:46,997 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-20 05:13:46,998 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:13:47,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:47,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1880294, now seen corresponding path program 1 times [2021-10-20 05:13:47,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:13:47,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765862481] [2021-10-20 05:13:47,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:47,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:13:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:47,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:47,503 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:13:47,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765862481] [2021-10-20 05:13:47,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765862481] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:47,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:13:47,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 05:13:47,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073021662] [2021-10-20 05:13:47,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:13:47,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:13:47,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:13:47,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:13:47,551 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-20 05:13:47,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:47,639 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2021-10-20 05:13:47,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:13:47,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-10-20 05:13:47,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:47,648 INFO L225 Difference]: With dead ends: 9 [2021-10-20 05:13:47,649 INFO L226 Difference]: Without dead ends: 0 [2021-10-20 05:13:47,652 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-20 05:13:47,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-20 05:13:47,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-20 05:13:47,677 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) [2021-10-20 05:13:47,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-20 05:13:47,678 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-10-20 05:13:47,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:47,679 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-20 05:13:47,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-20 05:13:47,680 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-20 05:13:47,680 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-20 05:13:47,683 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:13:47,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-20 05:13:47,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-20 05:13:47,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:47,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:47,720 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-20 05:13:47,720 INFO L857 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2021-10-20 05:13:47,721 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-20 05:13:47,721 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2021-10-20 05:13:47,722 INFO L853 garLoopResultBuilder]: At program point L16-2(lines 16 19) the Hoare annotation is: (let ((.cse2 (div ULTIMATE.start_main_~z~0 4294967296)) (.cse3 (div ULTIMATE.start_main_~y~0 4294967296))) (let ((.cse1 (* 4294967296 .cse3)) (.cse0 (+ ULTIMATE.start_main_~y~0 (* 4294967296 .cse2)))) (and (< .cse0 (+ ULTIMATE.start_main_~z~0 .cse1 1)) (<= (+ ULTIMATE.start_main_~z~0 .cse1) .cse0) (< .cse2 (+ .cse3 1))))) [2021-10-20 05:13:47,722 INFO L857 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-10-20 05:13:47,722 INFO L853 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: (let ((.cse2 (div ULTIMATE.start_main_~z~0 4294967296)) (.cse3 (div ULTIMATE.start_main_~y~0 4294967296))) (let ((.cse1 (* 4294967296 .cse3)) (.cse0 (+ ULTIMATE.start_main_~y~0 (* 4294967296 .cse2)))) (and (< .cse0 (+ ULTIMATE.start_main_~z~0 .cse1 1)) (<= (+ ULTIMATE.start_main_~z~0 .cse1) .cse0) (< .cse2 (+ .cse3 1)) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))))) [2021-10-20 05:13:47,727 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:13:47,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:13:47 BoogieIcfgContainer [2021-10-20 05:13:47,744 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:13:47,745 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:13:47,745 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:13:47,746 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:13:47,746 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:13:46" (3/4) ... [2021-10-20 05:13:47,750 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-20 05:13:47,760 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-20 05:13:47,760 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-20 05:13:47,761 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-20 05:13:47,761 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-20 05:13:47,761 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-20 05:13:47,798 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d107545-204a-4741-aa54-16dd13f73315/bin/utaipan-tZwUujhuQw/witness.graphml [2021-10-20 05:13:47,798 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:13:47,800 INFO L168 Benchmark]: Toolchain (without parser) took 1723.35 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 59.7 MB in the beginning and 88.0 MB in the end (delta: -28.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:13:47,800 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 94.4 MB. Free memory was 66.4 MB in the beginning and 66.4 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:13:47,801 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.59 ms. Allocated memory is still 94.4 MB. Free memory was 59.7 MB in the beginning and 70.8 MB in the end (delta: -11.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 05:13:47,802 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.93 ms. Allocated memory is still 94.4 MB. Free memory was 70.8 MB in the beginning and 69.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:13:47,802 INFO L168 Benchmark]: Boogie Preprocessor took 35.73 ms. Allocated memory is still 94.4 MB. Free memory was 69.5 MB in the beginning and 68.6 MB in the end (delta: 876.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:13:47,803 INFO L168 Benchmark]: RCFGBuilder took 419.51 ms. Allocated memory is still 94.4 MB. Free memory was 68.2 MB in the beginning and 57.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-20 05:13:47,803 INFO L168 Benchmark]: TraceAbstraction took 892.73 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 57.3 MB in the beginning and 90.7 MB in the end (delta: -33.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:13:47,804 INFO L168 Benchmark]: Witness Printer took 52.86 ms. Allocated memory is still 121.6 MB. Free memory was 90.7 MB in the beginning and 88.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:13:47,807 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 66.4 MB in the beginning and 66.4 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 261.59 ms. Allocated memory is still 94.4 MB. Free memory was 59.7 MB in the beginning and 70.8 MB in the end (delta: -11.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.93 ms. Allocated memory is still 94.4 MB. Free memory was 70.8 MB in the beginning and 69.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.73 ms. Allocated memory is still 94.4 MB. Free memory was 69.5 MB in the beginning and 68.6 MB in the end (delta: 876.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 419.51 ms. Allocated memory is still 94.4 MB. Free memory was 68.2 MB in the beginning and 57.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 892.73 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 57.3 MB in the beginning and 90.7 MB in the end (delta: -33.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 52.86 ms. Allocated memory is still 121.6 MB. Free memory was 90.7 MB in the beginning and 88.0 MB in the end (delta: 2.7 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: 7]: 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, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 773.0ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 20.0ms, AutomataDifference: 120.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 35.1ms, InitialAbstractionConstructionTime: 11.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2 SDtfs, 5 SDslu, 1 SDs, 0 SdLazy, 4 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 31.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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: 10.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 86 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 8.3ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 18.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 13.5ms SsaConstructionTime, 97.3ms SatisfiabilityAnalysisTime, 294.7ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 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: 5]: Loop Invariant Derived loop invariant: ((y + 4294967296 * (z / 4294967296) < z + 4294967296 * (y / 4294967296) + 1 && z + 4294967296 * (y / 4294967296) <= y + 4294967296 * (z / 4294967296)) && z / 4294967296 < y / 4294967296 + 1) && !(0 == cond) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (y + 4294967296 * (z / 4294967296) < z + 4294967296 * (y / 4294967296) + 1 && z + 4294967296 * (y / 4294967296) <= y + 4294967296 * (z / 4294967296)) && z / 4294967296 < y / 4294967296 + 1 RESULT: Ultimate proved your program to be correct! [2021-10-20 05:13:47,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d107545-204a-4741-aa54-16dd13f73315/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...