./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark02_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab4be87b-c64d-4488-8eea-cacc9f417381/bin/ukojak-d1pc8ZmBRL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab4be87b-c64d-4488-8eea-cacc9f417381/bin/ukojak-d1pc8ZmBRL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab4be87b-c64d-4488-8eea-cacc9f417381/bin/ukojak-d1pc8ZmBRL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab4be87b-c64d-4488-8eea-cacc9f417381/bin/ukojak-d1pc8ZmBRL/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark02_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab4be87b-c64d-4488-8eea-cacc9f417381/bin/ukojak-d1pc8ZmBRL/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab4be87b-c64d-4488-8eea-cacc9f417381/bin/ukojak-d1pc8ZmBRL --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a49557d960d757ebc59691c53a34969948d685fd24f146c763d0c70a84ed86eb --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 07:51:21,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 07:51:21,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 07:51:21,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 07:51:21,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 07:51:21,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 07:51:21,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 07:51:21,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 07:51:21,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 07:51:21,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 07:51:21,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 07:51:21,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 07:51:21,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 07:51:21,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 07:51:21,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 07:51:21,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 07:51:21,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 07:51:21,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 07:51:21,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 07:51:21,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 07:51:21,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 07:51:21,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 07:51:21,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 07:51:21,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 07:51:21,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 07:51:21,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 07:51:21,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 07:51:21,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 07:51:21,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 07:51:21,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 07:51:21,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 07:51:21,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 07:51:21,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 07:51:21,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 07:51:21,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 07:51:21,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 07:51:21,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 07:51:21,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 07:51:21,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 07:51:21,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 07:51:21,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 07:51:21,289 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab4be87b-c64d-4488-8eea-cacc9f417381/bin/ukojak-d1pc8ZmBRL/config/svcomp-Overflow-32bit-Kojak_Default.epf [2021-11-25 07:51:21,352 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 07:51:21,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 07:51:21,356 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 07:51:21,357 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-25 07:51:21,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 07:51:21,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 07:51:21,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 07:51:21,359 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 07:51:21,359 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 07:51:21,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 07:51:21,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 07:51:21,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 07:51:21,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 07:51:21,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 07:51:21,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 07:51:21,368 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-25 07:51:21,368 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 07:51:21,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 07:51:21,368 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 07:51:21,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 07:51:21,369 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-25 07:51:21,369 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-25 07:51:21,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 07:51:21,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 07:51:21,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 07:51:21,370 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 07:51:21,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 07:51:21,371 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-25 07:51:21,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 07:51:21,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 07:51:21,377 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_ab4be87b-c64d-4488-8eea-cacc9f417381/bin/ukojak-d1pc8ZmBRL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab4be87b-c64d-4488-8eea-cacc9f417381/bin/ukojak-d1pc8ZmBRL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a49557d960d757ebc59691c53a34969948d685fd24f146c763d0c70a84ed86eb [2021-11-25 07:51:21,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 07:51:21,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 07:51:21,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 07:51:21,833 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 07:51:21,834 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 07:51:21,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab4be87b-c64d-4488-8eea-cacc9f417381/bin/ukojak-d1pc8ZmBRL/../../sv-benchmarks/c/loop-zilu/benchmark02_linear.i [2021-11-25 07:51:21,931 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab4be87b-c64d-4488-8eea-cacc9f417381/bin/ukojak-d1pc8ZmBRL/data/367311854/e669c3f4f9874a32b825aa5bc3db23ea/FLAG66737da7b [2021-11-25 07:51:22,529 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 07:51:22,530 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab4be87b-c64d-4488-8eea-cacc9f417381/sv-benchmarks/c/loop-zilu/benchmark02_linear.i [2021-11-25 07:51:22,538 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab4be87b-c64d-4488-8eea-cacc9f417381/bin/ukojak-d1pc8ZmBRL/data/367311854/e669c3f4f9874a32b825aa5bc3db23ea/FLAG66737da7b [2021-11-25 07:51:22,883 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab4be87b-c64d-4488-8eea-cacc9f417381/bin/ukojak-d1pc8ZmBRL/data/367311854/e669c3f4f9874a32b825aa5bc3db23ea [2021-11-25 07:51:22,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 07:51:22,889 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 07:51:22,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 07:51:22,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 07:51:22,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 07:51:22,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:51:22" (1/1) ... [2021-11-25 07:51:22,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4008f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:51:22, skipping insertion in model container [2021-11-25 07:51:22,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:51:22" (1/1) ... [2021-11-25 07:51:22,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 07:51:22,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 07:51:23,177 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_ab4be87b-c64d-4488-8eea-cacc9f417381/sv-benchmarks/c/loop-zilu/benchmark02_linear.i[868,881] [2021-11-25 07:51:23,194 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 07:51:23,208 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 07:51:23,235 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_ab4be87b-c64d-4488-8eea-cacc9f417381/sv-benchmarks/c/loop-zilu/benchmark02_linear.i[868,881] [2021-11-25 07:51:23,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 07:51:23,264 INFO L208 MainTranslator]: Completed translation [2021-11-25 07:51:23,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:51:23 WrapperNode [2021-11-25 07:51:23,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 07:51:23,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 07:51:23,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 07:51:23,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 07:51:23,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:51:23" (1/1) ... [2021-11-25 07:51:23,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:51:23" (1/1) ... [2021-11-25 07:51:23,316 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2021-11-25 07:51:23,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 07:51:23,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 07:51:23,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 07:51:23,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 07:51:23,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:51:23" (1/1) ... [2021-11-25 07:51:23,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:51:23" (1/1) ... [2021-11-25 07:51:23,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:51:23" (1/1) ... [2021-11-25 07:51:23,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:51:23" (1/1) ... [2021-11-25 07:51:23,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:51:23" (1/1) ... [2021-11-25 07:51:23,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:51:23" (1/1) ... [2021-11-25 07:51:23,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:51:23" (1/1) ... [2021-11-25 07:51:23,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 07:51:23,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 07:51:23,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 07:51:23,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 07:51:23,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:51:23" (1/1) ... [2021-11-25 07:51:23,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 07:51:23,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab4be87b-c64d-4488-8eea-cacc9f417381/bin/ukojak-d1pc8ZmBRL/z3 [2021-11-25 07:51:23,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab4be87b-c64d-4488-8eea-cacc9f417381/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-25 07:51:23,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab4be87b-c64d-4488-8eea-cacc9f417381/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-25 07:51:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 07:51:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 07:51:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 07:51:23,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 07:51:23,563 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 07:51:23,566 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 07:51:23,734 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 07:51:23,766 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 07:51:23,766 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 07:51:23,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:51:23 BoogieIcfgContainer [2021-11-25 07:51:23,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 07:51:23,771 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-25 07:51:23,771 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-25 07:51:23,790 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-25 07:51:23,790 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:51:23" (1/1) ... [2021-11-25 07:51:23,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 07:51:23,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:51:23,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2021-11-25 07:51:23,875 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-11-25 07:51:23,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 07:51:23,878 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:51:23,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:51:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:51:24,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:51:24,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:51:24,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2021-11-25 07:51:24,237 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2021-11-25 07:51:24,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 07:51:24,237 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:51:24,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:51:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:51:24,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:51:24,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:51:24,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 14 states and 21 transitions. [2021-11-25 07:51:24,585 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 21 transitions. [2021-11-25 07:51:24,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 07:51:24,588 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:51:24,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:51:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:51:24,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 07:51:24,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:51:24,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2021-11-25 07:51:24,907 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2021-11-25 07:51:24,907 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 07:51:24,908 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2021-11-25 07:51:24,923 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2021-11-25 07:51:24,949 INFO L560 CodeCheckObserver]: Invariant with dag size 7 [2021-11-25 07:51:24,962 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-25 07:51:24,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 07:51:24 ImpRootNode [2021-11-25 07:51:24,963 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-25 07:51:24,965 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 07:51:24,965 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 07:51:24,965 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 07:51:24,966 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:51:23" (3/4) ... [2021-11-25 07:51:24,971 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 07:51:24,989 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-25 07:51:24,990 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-25 07:51:24,990 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-25 07:51:24,991 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-25 07:51:25,052 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab4be87b-c64d-4488-8eea-cacc9f417381/bin/ukojak-d1pc8ZmBRL/witness.graphml [2021-11-25 07:51:25,058 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 07:51:25,067 INFO L158 Benchmark]: Toolchain (without parser) took 2173.67ms. Allocated memory was 100.7MB in the beginning and 138.4MB in the end (delta: 37.7MB). Free memory was 66.3MB in the beginning and 103.0MB in the end (delta: -36.7MB). Peak memory consumption was 996.9kB. Max. memory is 16.1GB. [2021-11-25 07:51:25,067 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 100.7MB. Free memory is still 55.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 07:51:25,069 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.06ms. Allocated memory was 100.7MB in the beginning and 138.4MB in the end (delta: 37.7MB). Free memory was 66.1MB in the beginning and 112.8MB in the end (delta: -46.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 07:51:25,070 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.92ms. Allocated memory is still 138.4MB. Free memory was 112.8MB in the beginning and 111.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 07:51:25,070 INFO L158 Benchmark]: Boogie Preprocessor took 47.90ms. Allocated memory is still 138.4MB. Free memory was 111.6MB in the beginning and 110.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 07:51:25,071 INFO L158 Benchmark]: RCFGBuilder took 402.58ms. Allocated memory is still 138.4MB. Free memory was 110.3MB in the beginning and 100.7MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 07:51:25,075 INFO L158 Benchmark]: CodeCheck took 1192.61ms. Allocated memory is still 138.4MB. Free memory was 100.7MB in the beginning and 105.9MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 07:51:25,077 INFO L158 Benchmark]: Witness Printer took 97.64ms. Allocated memory is still 138.4MB. Free memory was 105.2MB in the beginning and 103.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 07:51:25,082 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, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 4, 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, 18 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 0 mSDtfsCounter, 105 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 113 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 43 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 1/2 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: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: n <= 2147483647 && 1 <= i - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 100.7MB. Free memory is still 55.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.06ms. Allocated memory was 100.7MB in the beginning and 138.4MB in the end (delta: 37.7MB). Free memory was 66.1MB in the beginning and 112.8MB in the end (delta: -46.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.92ms. Allocated memory is still 138.4MB. Free memory was 112.8MB in the beginning and 111.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.90ms. Allocated memory is still 138.4MB. Free memory was 111.6MB in the beginning and 110.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 402.58ms. Allocated memory is still 138.4MB. Free memory was 110.3MB in the beginning and 100.7MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1192.61ms. Allocated memory is still 138.4MB. Free memory was 100.7MB in the beginning and 105.9MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 97.64ms. Allocated memory is still 138.4MB. Free memory was 105.2MB in the beginning and 103.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-25 07:51:25,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab4be87b-c64d-4488-8eea-cacc9f417381/bin/ukojak-d1pc8ZmBRL/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