./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Bangalore_v4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19002891-eebf-4991-adda-2a817857e31f/bin/ukojak-vF6T2TMglN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19002891-eebf-4991-adda-2a817857e31f/bin/ukojak-vF6T2TMglN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19002891-eebf-4991-adda-2a817857e31f/bin/ukojak-vF6T2TMglN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19002891-eebf-4991-adda-2a817857e31f/bin/ukojak-vF6T2TMglN/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Bangalore_v4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19002891-eebf-4991-adda-2a817857e31f/bin/ukojak-vF6T2TMglN/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19002891-eebf-4991-adda-2a817857e31f/bin/ukojak-vF6T2TMglN --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 64bit --witnessprinter.graph.data.programhash 5cc55b361d4f01def0eda607149a19c4785fee68e7824d0210bdec8ce7b04371 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 04:33:47,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 04:33:47,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 04:33:47,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 04:33:47,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 04:33:47,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 04:33:47,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 04:33:47,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 04:33:47,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 04:33:47,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 04:33:47,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 04:33:47,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 04:33:47,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 04:33:47,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 04:33:47,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 04:33:47,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 04:33:47,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 04:33:47,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 04:33:47,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 04:33:47,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 04:33:47,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 04:33:47,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 04:33:47,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 04:33:47,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 04:33:47,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 04:33:47,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 04:33:47,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 04:33:47,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 04:33:47,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 04:33:47,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 04:33:47,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 04:33:47,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 04:33:47,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 04:33:47,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 04:33:47,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 04:33:47,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 04:33:47,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 04:33:47,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 04:33:47,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 04:33:47,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 04:33:47,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 04:33:47,733 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19002891-eebf-4991-adda-2a817857e31f/bin/ukojak-vF6T2TMglN/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-21 04:33:47,781 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 04:33:47,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 04:33:47,785 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 04:33:47,786 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-21 04:33:47,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 04:33:47,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 04:33:47,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 04:33:47,788 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 04:33:47,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 04:33:47,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 04:33:47,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 04:33:47,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 04:33:47,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 04:33:47,790 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 04:33:47,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 04:33:47,791 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 04:33:47,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 04:33:47,791 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-21 04:33:47,791 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-21 04:33:47,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 04:33:47,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 04:33:47,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 04:33:47,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 04:33:47,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 04:33:47,793 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-21 04:33:47,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 04:33:47,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 04:33:47,794 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_19002891-eebf-4991-adda-2a817857e31f/bin/ukojak-vF6T2TMglN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19002891-eebf-4991-adda-2a817857e31f/bin/ukojak-vF6T2TMglN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cc55b361d4f01def0eda607149a19c4785fee68e7824d0210bdec8ce7b04371 [2021-11-21 04:33:48,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 04:33:48,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 04:33:48,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 04:33:48,225 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 04:33:48,226 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 04:33:48,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19002891-eebf-4991-adda-2a817857e31f/bin/ukojak-vF6T2TMglN/../../sv-benchmarks/c/termination-crafted/Bangalore_v4.c [2021-11-21 04:33:48,322 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19002891-eebf-4991-adda-2a817857e31f/bin/ukojak-vF6T2TMglN/data/608f9c006/4d0fc15de3c646fc8fdd522c5335b4c6/FLAG595345e55 [2021-11-21 04:33:48,948 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 04:33:48,948 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19002891-eebf-4991-adda-2a817857e31f/sv-benchmarks/c/termination-crafted/Bangalore_v4.c [2021-11-21 04:33:48,962 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19002891-eebf-4991-adda-2a817857e31f/bin/ukojak-vF6T2TMglN/data/608f9c006/4d0fc15de3c646fc8fdd522c5335b4c6/FLAG595345e55 [2021-11-21 04:33:49,306 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19002891-eebf-4991-adda-2a817857e31f/bin/ukojak-vF6T2TMglN/data/608f9c006/4d0fc15de3c646fc8fdd522c5335b4c6 [2021-11-21 04:33:49,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 04:33:49,311 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 04:33:49,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 04:33:49,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 04:33:49,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 04:33:49,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:33:49" (1/1) ... [2021-11-21 04:33:49,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68818575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:49, skipping insertion in model container [2021-11-21 04:33:49,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:33:49" (1/1) ... [2021-11-21 04:33:49,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 04:33:49,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 04:33:49,579 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 04:33:49,583 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 04:33:49,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 04:33:49,613 INFO L208 MainTranslator]: Completed translation [2021-11-21 04:33:49,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:49 WrapperNode [2021-11-21 04:33:49,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 04:33:49,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 04:33:49,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 04:33:49,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 04:33:49,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:49" (1/1) ... [2021-11-21 04:33:49,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:49" (1/1) ... [2021-11-21 04:33:49,652 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2021-11-21 04:33:49,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 04:33:49,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 04:33:49,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 04:33:49,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 04:33:49,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:49" (1/1) ... [2021-11-21 04:33:49,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:49" (1/1) ... [2021-11-21 04:33:49,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:49" (1/1) ... [2021-11-21 04:33:49,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:49" (1/1) ... [2021-11-21 04:33:49,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:49" (1/1) ... [2021-11-21 04:33:49,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:49" (1/1) ... [2021-11-21 04:33:49,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:49" (1/1) ... [2021-11-21 04:33:49,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 04:33:49,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 04:33:49,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 04:33:49,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 04:33:49,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:49" (1/1) ... [2021-11-21 04:33:49,692 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 04:33:49,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19002891-eebf-4991-adda-2a817857e31f/bin/ukojak-vF6T2TMglN/z3 [2021-11-21 04:33:49,728 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19002891-eebf-4991-adda-2a817857e31f/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-21 04:33:49,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19002891-eebf-4991-adda-2a817857e31f/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-21 04:33:49,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 04:33:49,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 04:33:49,872 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 04:33:49,874 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 04:33:50,011 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 04:33:50,045 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 04:33:50,046 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 04:33:50,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:33:50 BoogieIcfgContainer [2021-11-21 04:33:50,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 04:33:50,050 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-21 04:33:50,051 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-21 04:33:50,064 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-21 04:33:50,064 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:33:50" (1/1) ... [2021-11-21 04:33:50,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 04:33:50,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:33:50,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2021-11-21 04:33:50,181 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-11-21 04:33:50,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 04:33:50,184 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:33:50,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:33:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:33:50,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 04:33:50,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:33:50,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2021-11-21 04:33:50,422 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2021-11-21 04:33:50,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 04:33:50,423 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:33:50,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:33:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:33:50,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 04:33:50,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:33:50,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 14 states and 22 transitions. [2021-11-21 04:33:50,711 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 22 transitions. [2021-11-21 04:33:50,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 04:33:50,712 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:33:50,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:33:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:33:50,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 04:33:51,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:33:51,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 15 states and 25 transitions. [2021-11-21 04:33:51,118 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 25 transitions. [2021-11-21 04:33:51,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 04:33:51,121 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:33:51,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:33:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:33:51,180 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:33:51,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:33:51,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2021-11-21 04:33:51,473 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2021-11-21 04:33:51,474 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-21 04:33:51,474 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2021-11-21 04:33:51,489 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2021-11-21 04:33:51,523 INFO L560 CodeCheckObserver]: Invariant with dag size 8 [2021-11-21 04:33:51,540 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-21 04:33:51,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 04:33:51 ImpRootNode [2021-11-21 04:33:51,542 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-21 04:33:51,543 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 04:33:51,543 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 04:33:51,543 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 04:33:51,544 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:33:50" (3/4) ... [2021-11-21 04:33:51,547 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 04:33:51,560 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-21 04:33:51,560 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-21 04:33:51,561 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-21 04:33:51,603 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19002891-eebf-4991-adda-2a817857e31f/bin/ukojak-vF6T2TMglN/witness.graphml [2021-11-21 04:33:51,603 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 04:33:51,605 INFO L158 Benchmark]: Toolchain (without parser) took 2293.62ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 78.8MB in the beginning and 97.3MB in the end (delta: -18.4MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2021-11-21 04:33:51,605 INFO L158 Benchmark]: CDTParser took 1.49ms. Allocated memory is still 109.1MB. Free memory is still 62.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 04:33:51,606 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.08ms. Allocated memory is still 109.1MB. Free memory was 78.6MB in the beginning and 86.5MB in the end (delta: -7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 04:33:51,607 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.42ms. Allocated memory is still 109.1MB. Free memory was 86.5MB in the beginning and 85.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 04:33:51,608 INFO L158 Benchmark]: Boogie Preprocessor took 23.93ms. Allocated memory is still 109.1MB. Free memory was 85.2MB in the beginning and 84.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 04:33:51,609 INFO L158 Benchmark]: RCFGBuilder took 368.32ms. Allocated memory is still 109.1MB. Free memory was 84.1MB in the beginning and 75.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 04:33:51,610 INFO L158 Benchmark]: CodeCheck took 1491.58ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 75.3MB in the beginning and 99.3MB in the end (delta: -24.1MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-11-21 04:33:51,610 INFO L158 Benchmark]: Witness Printer took 60.78ms. Allocated memory is still 138.4MB. Free memory was 99.3MB in the beginning and 97.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 04:33:51,624 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: 1.4s, OverallIterations: 5, 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, 51 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 172 IncrementalHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 8 mSDtfsCounter, 172 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 179 SyntacticMatches, 8 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/5 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: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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: 17]: Loop Invariant Derived loop invariant: x + 1 <= y && y <= 2147483647 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.49ms. Allocated memory is still 109.1MB. Free memory is still 62.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.08ms. Allocated memory is still 109.1MB. Free memory was 78.6MB in the beginning and 86.5MB in the end (delta: -7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.42ms. Allocated memory is still 109.1MB. Free memory was 86.5MB in the beginning and 85.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.93ms. Allocated memory is still 109.1MB. Free memory was 85.2MB in the beginning and 84.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 368.32ms. Allocated memory is still 109.1MB. Free memory was 84.1MB in the beginning and 75.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1491.58ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 75.3MB in the beginning and 99.3MB in the end (delta: -24.1MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Witness Printer took 60.78ms. Allocated memory is still 138.4MB. Free memory was 99.3MB in the beginning and 97.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-21 04:33:51,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19002891-eebf-4991-adda-2a817857e31f/bin/ukojak-vF6T2TMglN/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