./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/array_3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58c5b76-f458-40f1-9e44-e3275dd83b79/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58c5b76-f458-40f1-9e44-e3275dd83b79/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58c5b76-f458-40f1-9e44-e3275dd83b79/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58c5b76-f458-40f1-9e44-e3275dd83b79/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-acceleration/array_3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58c5b76-f458-40f1-9e44-e3275dd83b79/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58c5b76-f458-40f1-9e44-e3275dd83b79/bin/ukojak-LBtLqBUTdQ --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9c5d8dd6c87f471ee77fd3b765c8ecabfaf01dd976e127275ea7c589f724f472 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:07:16,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:07:16,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:07:16,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:07:16,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:07:16,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:07:16,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:07:16,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:07:16,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:07:16,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:07:16,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:07:16,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:07:16,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:07:16,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:07:16,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:07:16,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:07:16,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:07:16,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:07:16,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:07:16,529 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:07:16,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:07:16,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:07:16,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:07:16,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:07:16,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:07:16,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:07:16,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:07:16,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:07:16,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:07:16,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:07:16,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:07:16,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:07:16,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:07:16,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:07:16,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:07:16,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:07:16,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:07:16,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:07:16,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:07:16,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:07:16,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:07:16,564 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58c5b76-f458-40f1-9e44-e3275dd83b79/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-22 23:07:16,607 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:07:16,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:07:16,612 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:07:16,612 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:07:16,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:07:16,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:07:16,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:07:16,614 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:07:16,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:07:16,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:07:16,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:07:16,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:07:16,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:07:16,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:07:16,622 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:07:16,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:07:16,623 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:07:16,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:07:16,623 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:07:16,623 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:07:16,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:07:16,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:07:16,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:07:16,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:07:16,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:07:16,625 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-22 23:07:16,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:07:16,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:07:16,625 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f58c5b76-f458-40f1-9e44-e3275dd83b79/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58c5b76-f458-40f1-9e44-e3275dd83b79/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c5d8dd6c87f471ee77fd3b765c8ecabfaf01dd976e127275ea7c589f724f472 [2021-11-22 23:07:16,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:07:16,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:07:16,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:07:16,911 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:07:16,915 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:07:16,917 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58c5b76-f458-40f1-9e44-e3275dd83b79/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/loop-acceleration/array_3-1.i [2021-11-22 23:07:16,988 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58c5b76-f458-40f1-9e44-e3275dd83b79/bin/ukojak-LBtLqBUTdQ/data/f8beb25ac/1e82b14fe3e44affbea11f4676962eb5/FLAGd36a1d4bc [2021-11-22 23:07:17,413 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:07:17,413 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58c5b76-f458-40f1-9e44-e3275dd83b79/sv-benchmarks/c/loop-acceleration/array_3-1.i [2021-11-22 23:07:17,419 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58c5b76-f458-40f1-9e44-e3275dd83b79/bin/ukojak-LBtLqBUTdQ/data/f8beb25ac/1e82b14fe3e44affbea11f4676962eb5/FLAGd36a1d4bc [2021-11-22 23:07:17,798 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58c5b76-f458-40f1-9e44-e3275dd83b79/bin/ukojak-LBtLqBUTdQ/data/f8beb25ac/1e82b14fe3e44affbea11f4676962eb5 [2021-11-22 23:07:17,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:07:17,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:07:17,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:07:17,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:07:17,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:07:17,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:07:17" (1/1) ... [2021-11-22 23:07:17,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60bd3d85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:17, skipping insertion in model container [2021-11-22 23:07:17,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:07:17" (1/1) ... [2021-11-22 23:07:17,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:07:17,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:07:18,004 WARN L230 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_f58c5b76-f458-40f1-9e44-e3275dd83b79/sv-benchmarks/c/loop-acceleration/array_3-1.i[849,862] [2021-11-22 23:07:18,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:07:18,022 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:07:18,035 WARN L230 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_f58c5b76-f458-40f1-9e44-e3275dd83b79/sv-benchmarks/c/loop-acceleration/array_3-1.i[849,862] [2021-11-22 23:07:18,039 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:07:18,052 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:07:18,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:18 WrapperNode [2021-11-22 23:07:18,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:07:18,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:07:18,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:07:18,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:07:18,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:18" (1/1) ... [2021-11-22 23:07:18,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:18" (1/1) ... [2021-11-22 23:07:18,086 INFO L137 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2021-11-22 23:07:18,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:07:18,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:07:18,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:07:18,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:07:18,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:18" (1/1) ... [2021-11-22 23:07:18,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:18" (1/1) ... [2021-11-22 23:07:18,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:18" (1/1) ... [2021-11-22 23:07:18,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:18" (1/1) ... [2021-11-22 23:07:18,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:18" (1/1) ... [2021-11-22 23:07:18,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:18" (1/1) ... [2021-11-22 23:07:18,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:18" (1/1) ... [2021-11-22 23:07:18,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:07:18,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:07:18,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:07:18,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:07:18,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:18" (1/1) ... [2021-11-22 23:07:18,117 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:07:18,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58c5b76-f458-40f1-9e44-e3275dd83b79/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:07:18,141 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58c5b76-f458-40f1-9e44-e3275dd83b79/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:07:18,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58c5b76-f458-40f1-9e44-e3275dd83b79/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:07:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:07:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:07:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 23:07:18,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 23:07:18,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:07:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:07:18,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 23:07:18,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:07:18,269 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:07:18,271 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:07:18,418 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:07:18,449 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:07:18,449 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-22 23:07:18,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:07:18 BoogieIcfgContainer [2021-11-22 23:07:18,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:07:18,452 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-22 23:07:18,452 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-22 23:07:18,466 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-22 23:07:18,466 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:07:18" (1/1) ... [2021-11-22 23:07:18,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:07:18,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:18,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2021-11-22 23:07:18,573 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2021-11-22 23:07:18,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-22 23:07:18,575 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:18,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:18,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:07:18,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:18,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2021-11-22 23:07:18,781 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-11-22 23:07:18,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 23:07:18,787 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:18,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:18,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:07:18,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:18,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2021-11-22 23:07:18,861 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2021-11-22 23:07:18,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-22 23:07:18,862 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:18,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:18,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:07:19,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:19,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 13 states and 17 transitions. [2021-11-22 23:07:19,019 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2021-11-22 23:07:19,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 23:07:19,019 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:19,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:19,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-22 23:07:19,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:19,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2021-11-22 23:07:19,202 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-11-22 23:07:19,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-22 23:07:19,203 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:19,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:19,260 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-22 23:07:19,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:19,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2021-11-22 23:07:19,304 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2021-11-22 23:07:19,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 23:07:19,315 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:19,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:19,362 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-22 23:07:19,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:19,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2021-11-22 23:07:19,423 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2021-11-22 23:07:19,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-22 23:07:19,424 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:19,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:19,471 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:07:19,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:19,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 17 states and 25 transitions. [2021-11-22 23:07:19,593 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 25 transitions. [2021-11-22 23:07:19,594 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-22 23:07:19,594 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2021-11-22 23:07:19,606 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-22 23:07:19,649 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-22 23:07:19,654 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2021-11-22 23:07:19,659 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-22 23:07:19,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.11 11:07:19 ImpRootNode [2021-11-22 23:07:19,660 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-22 23:07:19,661 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 23:07:19,662 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 23:07:19,662 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 23:07:19,663 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:07:18" (3/4) ... [2021-11-22 23:07:19,667 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-22 23:07:19,680 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-22 23:07:19,680 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-22 23:07:19,680 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-22 23:07:19,681 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-22 23:07:19,734 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58c5b76-f458-40f1-9e44-e3275dd83b79/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-22 23:07:19,739 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 23:07:19,740 INFO L158 Benchmark]: Toolchain (without parser) took 1937.96ms. Allocated memory was 102.8MB in the beginning and 142.6MB in the end (delta: 39.8MB). Free memory was 65.4MB in the beginning and 103.5MB in the end (delta: -38.1MB). Peak memory consumption was 907.4kB. Max. memory is 16.1GB. [2021-11-22 23:07:19,741 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 102.8MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:07:19,742 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.06ms. Allocated memory is still 102.8MB. Free memory was 65.2MB in the beginning and 76.5MB in the end (delta: -11.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-22 23:07:19,742 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.02ms. Allocated memory is still 102.8MB. Free memory was 76.5MB in the beginning and 75.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:07:19,743 INFO L158 Benchmark]: Boogie Preprocessor took 20.85ms. Allocated memory is still 102.8MB. Free memory was 75.3MB in the beginning and 74.3MB in the end (delta: 931.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:07:19,745 INFO L158 Benchmark]: RCFGBuilder took 343.16ms. Allocated memory is still 102.8MB. Free memory was 73.9MB in the beginning and 64.3MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 23:07:19,747 INFO L158 Benchmark]: CodeCheck took 1208.05ms. Allocated memory was 102.8MB in the beginning and 142.6MB in the end (delta: 39.8MB). Free memory was 64.3MB in the beginning and 106.5MB in the end (delta: -42.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:07:19,749 INFO L158 Benchmark]: Witness Printer took 78.40ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 103.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:07:19,751 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 198 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 121 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 216 IncrementalHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 77 mSDtfsCounter, 216 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 526 GetRequests, 503 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 106 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 21/25 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: i <= 1023 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 102.8MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.06ms. Allocated memory is still 102.8MB. Free memory was 65.2MB in the beginning and 76.5MB in the end (delta: -11.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.02ms. Allocated memory is still 102.8MB. Free memory was 76.5MB in the beginning and 75.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.85ms. Allocated memory is still 102.8MB. Free memory was 75.3MB in the beginning and 74.3MB in the end (delta: 931.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 343.16ms. Allocated memory is still 102.8MB. Free memory was 73.9MB in the beginning and 64.3MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1208.05ms. Allocated memory was 102.8MB in the beginning and 142.6MB in the end (delta: 39.8MB). Free memory was 64.3MB in the beginning and 106.5MB in the end (delta: -42.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 78.40ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 103.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-22 23:07:19,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58c5b76-f458-40f1-9e44-e3275dd83b79/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE