./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-dietlibc/strspn.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b73eba33-9da7-4470-9480-57ae8f07973c/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b73eba33-9da7-4470-9480-57ae8f07973c/bin/ukojak-jW3SillKbg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b73eba33-9da7-4470-9480-57ae8f07973c/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b73eba33-9da7-4470-9480-57ae8f07973c/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-dietlibc/strspn.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b73eba33-9da7-4470-9480-57ae8f07973c/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b73eba33-9da7-4470-9480-57ae8f07973c/bin/ukojak-jW3SillKbg --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 d2c6859ca90ff0da205f4fa2f88d8f61c0c2d9f9f437471b81ea8abc3f9fd19e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 21:59:55,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 21:59:55,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 21:59:55,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 21:59:55,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 21:59:55,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 21:59:55,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 21:59:55,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 21:59:55,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 21:59:55,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 21:59:55,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 21:59:55,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 21:59:55,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 21:59:55,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 21:59:55,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 21:59:55,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 21:59:55,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 21:59:55,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 21:59:55,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 21:59:55,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 21:59:55,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 21:59:55,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 21:59:55,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 21:59:55,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 21:59:55,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 21:59:55,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 21:59:55,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 21:59:55,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 21:59:55,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 21:59:55,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 21:59:55,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 21:59:55,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 21:59:55,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 21:59:55,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 21:59:55,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 21:59:55,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 21:59:55,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 21:59:55,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 21:59:55,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 21:59:55,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 21:59:55,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 21:59:55,407 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b73eba33-9da7-4470-9480-57ae8f07973c/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-21 21:59:55,445 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 21:59:55,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 21:59:55,447 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 21:59:55,447 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 21:59:55,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 21:59:55,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 21:59:55,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 21:59:55,449 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 21:59:55,450 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 21:59:55,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 21:59:55,451 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 21:59:55,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 21:59:55,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 21:59:55,452 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 21:59:55,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 21:59:55,452 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 21:59:55,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 21:59:55,453 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 21:59:55,453 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 21:59:55,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 21:59:55,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 21:59:55,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 21:59:55,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 21:59:55,454 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 21:59:55,454 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 21:59:55,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 21:59:55,455 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 21:59:55,455 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_b73eba33-9da7-4470-9480-57ae8f07973c/bin/ukojak-jW3SillKbg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b73eba33-9da7-4470-9480-57ae8f07973c/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2c6859ca90ff0da205f4fa2f88d8f61c0c2d9f9f437471b81ea8abc3f9fd19e [2022-11-21 21:59:55,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 21:59:55,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 21:59:55,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 21:59:55,771 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 21:59:55,772 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 21:59:55,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b73eba33-9da7-4470-9480-57ae8f07973c/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/termination-dietlibc/strspn.i [2022-11-21 21:59:58,896 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 21:59:59,115 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 21:59:59,116 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b73eba33-9da7-4470-9480-57ae8f07973c/sv-benchmarks/c/termination-dietlibc/strspn.i [2022-11-21 21:59:59,128 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b73eba33-9da7-4470-9480-57ae8f07973c/bin/ukojak-jW3SillKbg/data/1e48015ef/1d03729247714b5c8e42b68e9947886e/FLAGb7fd583cb [2022-11-21 21:59:59,143 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b73eba33-9da7-4470-9480-57ae8f07973c/bin/ukojak-jW3SillKbg/data/1e48015ef/1d03729247714b5c8e42b68e9947886e [2022-11-21 21:59:59,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 21:59:59,147 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 21:59:59,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 21:59:59,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 21:59:59,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 21:59:59,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:59:59" (1/1) ... [2022-11-21 21:59:59,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa7cf4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:59:59, skipping insertion in model container [2022-11-21 21:59:59,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:59:59" (1/1) ... [2022-11-21 21:59:59,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 21:59:59,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 21:59:59,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 21:59:59,541 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 21:59:59,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 21:59:59,627 INFO L208 MainTranslator]: Completed translation [2022-11-21 21:59:59,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:59:59 WrapperNode [2022-11-21 21:59:59,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 21:59:59,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 21:59:59,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 21:59:59,629 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 21:59:59,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:59:59" (1/1) ... [2022-11-21 21:59:59,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:59:59" (1/1) ... [2022-11-21 21:59:59,667 INFO L138 Inliner]: procedures = 113, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2022-11-21 21:59:59,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 21:59:59,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 21:59:59,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 21:59:59,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 21:59:59,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:59:59" (1/1) ... [2022-11-21 21:59:59,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:59:59" (1/1) ... [2022-11-21 21:59:59,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:59:59" (1/1) ... [2022-11-21 21:59:59,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:59:59" (1/1) ... [2022-11-21 21:59:59,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:59:59" (1/1) ... [2022-11-21 21:59:59,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:59:59" (1/1) ... [2022-11-21 21:59:59,690 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:59:59" (1/1) ... [2022-11-21 21:59:59,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:59:59" (1/1) ... [2022-11-21 21:59:59,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 21:59:59,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 21:59:59,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 21:59:59,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 21:59:59,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:59:59" (1/1) ... [2022-11-21 21:59:59,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 21:59:59,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b73eba33-9da7-4470-9480-57ae8f07973c/bin/ukojak-jW3SillKbg/z3 [2022-11-21 21:59:59,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b73eba33-9da7-4470-9480-57ae8f07973c/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 21:59:59,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b73eba33-9da7-4470-9480-57ae8f07973c/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 21:59:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 21:59:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 21:59:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 21:59:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 21:59:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 21:59:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 21:59:59,895 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 21:59:59,897 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 22:00:00,149 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 22:00:00,212 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 22:00:00,212 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 22:00:00,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:00:00 BoogieIcfgContainer [2022-11-21 22:00:00,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 22:00:00,215 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 22:00:00,215 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 22:00:00,231 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 22:00:00,231 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:00:00" (1/1) ... [2022-11-21 22:00:00,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 22:00:00,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:00:00,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2022-11-21 22:00:00,335 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2022-11-21 22:00:00,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 22:00:00,337 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:00:00,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:00:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:00:00,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:00:00,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:00:00,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2022-11-21 22:00:00,531 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2022-11-21 22:00:00,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 22:00:00,531 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:00:00,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:00:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:00:00,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:00:00,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:00:00,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2022-11-21 22:00:00,682 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2022-11-21 22:00:00,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 22:00:00,682 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:00:00,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:00:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:00:00,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:00:00,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:00:00,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2022-11-21 22:00:00,841 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2022-11-21 22:00:00,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 22:00:00,841 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:00:00,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:00:00,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:00:00,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:00:01,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:00:01,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2022-11-21 22:00:01,011 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2022-11-21 22:00:01,012 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 22:00:01,012 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2022-11-21 22:00:01,024 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-21 22:00:01,053 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 22:00:01,057 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 22:00:01,058 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 22:00:01,058 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 22:00:01,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 10:00:01 ImpRootNode [2022-11-21 22:00:01,059 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 22:00:01,060 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 22:00:01,060 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 22:00:01,061 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 22:00:01,061 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:00:00" (3/4) ... [2022-11-21 22:00:01,065 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 22:00:01,081 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-21 22:00:01,082 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 22:00:01,082 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 22:00:01,082 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 22:00:01,135 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b73eba33-9da7-4470-9480-57ae8f07973c/bin/ukojak-jW3SillKbg/witness.graphml [2022-11-21 22:00:01,135 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 22:00:01,136 INFO L158 Benchmark]: Toolchain (without parser) took 1988.70ms. Allocated memory is still 199.2MB. Free memory was 153.7MB in the beginning and 87.3MB in the end (delta: 66.3MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2022-11-21 22:00:01,136 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 134.2MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:00:01,137 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.07ms. Allocated memory is still 199.2MB. Free memory was 153.7MB in the beginning and 137.7MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 22:00:01,138 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.57ms. Allocated memory is still 199.2MB. Free memory was 137.7MB in the beginning and 135.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 22:00:01,138 INFO L158 Benchmark]: Boogie Preprocessor took 24.89ms. Allocated memory is still 199.2MB. Free memory was 135.6MB in the beginning and 134.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:00:01,139 INFO L158 Benchmark]: RCFGBuilder took 520.41ms. Allocated memory is still 199.2MB. Free memory was 134.2MB in the beginning and 120.2MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 22:00:01,139 INFO L158 Benchmark]: CodeCheck took 844.00ms. Allocated memory is still 199.2MB. Free memory was 120.2MB in the beginning and 90.2MB in the end (delta: 30.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-21 22:00:01,140 INFO L158 Benchmark]: Witness Printer took 75.24ms. Allocated memory is still 199.2MB. Free memory was 90.2MB in the beginning and 87.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 22:00:01,142 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, 20 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 0 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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: 523]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 523]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 527]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 527]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 511]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 510]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 519]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 510]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 134.2MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 479.07ms. Allocated memory is still 199.2MB. Free memory was 153.7MB in the beginning and 137.7MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.57ms. Allocated memory is still 199.2MB. Free memory was 137.7MB in the beginning and 135.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.89ms. Allocated memory is still 199.2MB. Free memory was 135.6MB in the beginning and 134.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 520.41ms. Allocated memory is still 199.2MB. Free memory was 134.2MB in the beginning and 120.2MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 844.00ms. Allocated memory is still 199.2MB. Free memory was 120.2MB in the beginning and 90.2MB in the end (delta: 30.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 75.24ms. Allocated memory is still 199.2MB. Free memory was 90.2MB in the beginning and 87.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-21 22:00:01,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b73eba33-9da7-4470-9480-57ae8f07973c/bin/ukojak-jW3SillKbg/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