./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/sum04-2.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_971ac0d5-763c-4afb-997d-27cf96a5896a/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971ac0d5-763c-4afb-997d-27cf96a5896a/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_971ac0d5-763c-4afb-997d-27cf96a5896a/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971ac0d5-763c-4afb-997d-27cf96a5896a/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/sum04-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971ac0d5-763c-4afb-997d-27cf96a5896a/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_971ac0d5-763c-4afb-997d-27cf96a5896a/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 aaea6fef281249794f41087d72bdcfa92bd0b0609c0833888767b94608daa7f2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:04:13,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:04:13,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:04:13,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:04:13,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:04:13,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:04:13,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:04:13,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:04:13,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:04:13,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:04:13,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:04:13,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:04:13,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:04:13,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:04:13,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:04:13,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:04:13,421 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:04:13,422 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:04:13,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:04:13,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:04:13,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:04:13,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:04:13,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:04:13,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:04:13,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:04:13,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:04:13,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:04:13,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:04:13,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:04:13,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:04:13,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:04:13,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:04:13,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:04:13,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:04:13,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:04:13,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:04:13,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:04:13,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:04:13,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:04:13,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:04:13,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:04:13,471 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971ac0d5-763c-4afb-997d-27cf96a5896a/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:04:13,526 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:04:13,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:04:13,528 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:04:13,528 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:04:13,529 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:04:13,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:04:13,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:04:13,530 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:04:13,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:04:13,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:04:13,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:04:13,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:04:13,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:04:13,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:04:13,539 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:04:13,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:04:13,539 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:04:13,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:04:13,540 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:04:13,540 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:04:13,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:04:13,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:04:13,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:04:13,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:04:13,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:04:13,542 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:04:13,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:04:13,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:04:13,542 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_971ac0d5-763c-4afb-997d-27cf96a5896a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971ac0d5-763c-4afb-997d-27cf96a5896a/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aaea6fef281249794f41087d72bdcfa92bd0b0609c0833888767b94608daa7f2 [2021-11-23 01:04:13,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:04:13,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:04:13,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:04:13,863 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:04:13,864 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:04:13,866 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971ac0d5-763c-4afb-997d-27cf96a5896a/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/loops/sum04-2.i [2021-11-23 01:04:13,942 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971ac0d5-763c-4afb-997d-27cf96a5896a/bin/ukojak-LBtLqBUTdQ/data/b356b6252/400ff99961bf4ff0b967f3653aa0233a/FLAGf897ba18b [2021-11-23 01:04:14,475 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:04:14,475 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971ac0d5-763c-4afb-997d-27cf96a5896a/sv-benchmarks/c/loops/sum04-2.i [2021-11-23 01:04:14,483 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971ac0d5-763c-4afb-997d-27cf96a5896a/bin/ukojak-LBtLqBUTdQ/data/b356b6252/400ff99961bf4ff0b967f3653aa0233a/FLAGf897ba18b [2021-11-23 01:04:14,849 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971ac0d5-763c-4afb-997d-27cf96a5896a/bin/ukojak-LBtLqBUTdQ/data/b356b6252/400ff99961bf4ff0b967f3653aa0233a [2021-11-23 01:04:14,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:04:14,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:04:14,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:04:14,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:04:14,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:04:14,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:04:14" (1/1) ... [2021-11-23 01:04:14,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ae40e86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:14, skipping insertion in model container [2021-11-23 01:04:14,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:04:14" (1/1) ... [2021-11-23 01:04:14,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:04:14,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:04:15,069 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_971ac0d5-763c-4afb-997d-27cf96a5896a/sv-benchmarks/c/loops/sum04-2.i[808,821] [2021-11-23 01:04:15,082 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:04:15,089 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:04:15,102 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_971ac0d5-763c-4afb-997d-27cf96a5896a/sv-benchmarks/c/loops/sum04-2.i[808,821] [2021-11-23 01:04:15,105 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:04:15,118 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:04:15,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:15 WrapperNode [2021-11-23 01:04:15,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:04:15,121 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:04:15,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:04:15,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:04:15,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:15" (1/1) ... [2021-11-23 01:04:15,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:15" (1/1) ... [2021-11-23 01:04:15,154 INFO L137 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2021-11-23 01:04:15,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:04:15,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:04:15,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:04:15,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:04:15,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:15" (1/1) ... [2021-11-23 01:04:15,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:15" (1/1) ... [2021-11-23 01:04:15,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:15" (1/1) ... [2021-11-23 01:04:15,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:15" (1/1) ... [2021-11-23 01:04:15,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:15" (1/1) ... [2021-11-23 01:04:15,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:15" (1/1) ... [2021-11-23 01:04:15,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:15" (1/1) ... [2021-11-23 01:04:15,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:04:15,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:04:15,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:04:15,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:04:15,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:15" (1/1) ... [2021-11-23 01:04:15,187 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:04:15,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971ac0d5-763c-4afb-997d-27cf96a5896a/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:04:15,213 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971ac0d5-763c-4afb-997d-27cf96a5896a/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:04:15,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971ac0d5-763c-4afb-997d-27cf96a5896a/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:04:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:04:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:04:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:04:15,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:04:15,330 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:04:15,332 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:04:15,421 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:04:15,440 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:04:15,440 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:04:15,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:04:15 BoogieIcfgContainer [2021-11-23 01:04:15,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:04:15,444 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:04:15,448 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:04:15,459 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:04:15,461 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:04:15" (1/1) ... [2021-11-23 01:04:15,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:04:15,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:15,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2021-11-23 01:04:15,544 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2021-11-23 01:04:15,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 01:04:15,547 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:15,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:15,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:04:15,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:15,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2021-11-23 01:04:15,744 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-11-23 01:04:15,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 01:04:15,744 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:15,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:15,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:04:15,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:15,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-11-23 01:04:15,921 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-23 01:04:15,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:04:15,921 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:15,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:16,013 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:04:16,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:16,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2021-11-23 01:04:16,079 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2021-11-23 01:04:16,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:04:16,079 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:16,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:16,156 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:04:16,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:16,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2021-11-23 01:04:16,212 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-11-23 01:04:16,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 01:04:16,212 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:16,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:16,257 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:04:16,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:16,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2021-11-23 01:04:16,307 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-23 01:04:16,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:04:16,307 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:16,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:16,357 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:04:16,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:16,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2021-11-23 01:04:16,410 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-11-23 01:04:16,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 01:04:16,410 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:16,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:16,463 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:04:16,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:16,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2021-11-23 01:04:16,547 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-23 01:04:16,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 01:04:16,548 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:16,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:16,621 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:04:16,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:16,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2021-11-23 01:04:16,679 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-11-23 01:04:16,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 01:04:16,680 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:16,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:16,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:17,061 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:04:18,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:18,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2021-11-23 01:04:18,643 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2021-11-23 01:04:18,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:04:18,646 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:18,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:18,792 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 37 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:04:18,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:18,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 13 states and 12 transitions. [2021-11-23 01:04:18,982 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2021-11-23 01:04:18,982 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:04:18,982 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2021-11-23 01:04:18,991 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 01:04:19,051 INFO L560 CodeCheckObserver]: Invariant with dag size 59 [2021-11-23 01:04:19,065 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:04:19,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:04:19 ImpRootNode [2021-11-23 01:04:19,080 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:04:19,080 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:04:19,081 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:04:19,081 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:04:19,081 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:04:15" (3/4) ... [2021-11-23 01:04:19,084 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:04:19,100 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-23 01:04:19,100 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-23 01:04:19,100 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 01:04:19,101 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:04:19,148 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971ac0d5-763c-4afb-997d-27cf96a5896a/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:04:19,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:04:19,150 INFO L158 Benchmark]: Toolchain (without parser) took 4296.13ms. Allocated memory was 86.0MB in the beginning and 119.5MB in the end (delta: 33.6MB). Free memory was 49.2MB in the beginning and 67.9MB in the end (delta: -18.7MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2021-11-23 01:04:19,150 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 86.0MB. Free memory is still 65.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:04:19,151 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.33ms. Allocated memory was 86.0MB in the beginning and 119.5MB in the end (delta: 33.6MB). Free memory was 48.9MB in the beginning and 95.6MB in the end (delta: -46.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:04:19,152 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.02ms. Allocated memory is still 119.5MB. Free memory was 95.6MB in the beginning and 94.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:04:19,155 INFO L158 Benchmark]: Boogie Preprocessor took 17.44ms. Allocated memory is still 119.5MB. Free memory was 94.0MB in the beginning and 93.5MB in the end (delta: 512.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:04:19,157 INFO L158 Benchmark]: RCFGBuilder took 269.34ms. Allocated memory is still 119.5MB. Free memory was 93.0MB in the beginning and 84.1MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:04:19,158 INFO L158 Benchmark]: CodeCheck took 3636.09ms. Allocated memory is still 119.5MB. Free memory was 84.1MB in the beginning and 69.9MB in the end (delta: 14.2MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2021-11-23 01:04:19,160 INFO L158 Benchmark]: Witness Printer took 68.21ms. Allocated memory is still 119.5MB. Free memory was 69.9MB in the beginning and 67.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:04:19,168 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, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 11, 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, 88 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 250 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 334 IncrementalHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 250 mSolverCounterUnsat, 30 mSDtfsCounter, 334 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 657 GetRequests, 530 SyntacticMatches, 35 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3630 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 218 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 37/165 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: ((((((((((i <= 6 && 5 < i) && 10 <= sn) && sn <= 10) || (((3 < i && i <= 4) && 6 <= sn) && sn <= 6)) || ((sn <= 16 && 8 < i) && 15 < sn)) || (((4 < i && sn <= 8) && 8 <= sn) && i <= 5)) || (((sn <= 2 && i <= 2) && 2 <= sn) && 2 <= i)) || (i == 1 && sn == 0)) || (((12 <= sn && 6 < i) && sn <= 12) && i <= 7)) || (((sn <= 14 && 7 < i) && i <= 8) && 14 <= sn)) || (((sn <= 4 && i <= 3) && 4 <= sn) && 2 < i) - 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 0.32ms. Allocated memory is still 86.0MB. Free memory is still 65.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.33ms. Allocated memory was 86.0MB in the beginning and 119.5MB in the end (delta: 33.6MB). Free memory was 48.9MB in the beginning and 95.6MB in the end (delta: -46.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.02ms. Allocated memory is still 119.5MB. Free memory was 95.6MB in the beginning and 94.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.44ms. Allocated memory is still 119.5MB. Free memory was 94.0MB in the beginning and 93.5MB in the end (delta: 512.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 269.34ms. Allocated memory is still 119.5MB. Free memory was 93.0MB in the beginning and 84.1MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 3636.09ms. Allocated memory is still 119.5MB. Free memory was 84.1MB in the beginning and 69.9MB in the end (delta: 14.2MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * Witness Printer took 68.21ms. Allocated memory is still 119.5MB. Free memory was 69.9MB in the beginning and 67.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 01:04:19,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_971ac0d5-763c-4afb-997d-27cf96a5896a/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE