./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/WhileDecr.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abfbe94-0c88-4f76-8146-fde838cdc45d/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abfbe94-0c88-4f76-8146-fde838cdc45d/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abfbe94-0c88-4f76-8146-fde838cdc45d/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abfbe94-0c88-4f76-8146-fde838cdc45d/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/WhileDecr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abfbe94-0c88-4f76-8146-fde838cdc45d/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abfbe94-0c88-4f76-8146-fde838cdc45d/bin/ukojak-pZX7IvK2PQ --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 60469f846b13a80cdc42678f152a01a7fd1982577a035f0bf10de91b64b0b315 --- 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-6b4ec56 [2022-11-20 18:17:29,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:17:29,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:17:29,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:17:29,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:17:29,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:17:29,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:17:29,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:17:29,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:17:29,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:17:29,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:17:29,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:17:29,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:17:29,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:17:29,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:17:29,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:17:29,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:17:29,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:17:29,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:17:29,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:17:29,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:17:29,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:17:29,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:17:29,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:17:29,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:17:29,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:17:29,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:17:29,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:17:29,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:17:29,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:17:29,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:17:29,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:17:29,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:17:29,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:17:29,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:17:29,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:17:29,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:17:29,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:17:29,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:17:29,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:17:29,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:17:29,747 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abfbe94-0c88-4f76-8146-fde838cdc45d/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 18:17:29,791 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:17:29,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:17:29,792 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 18:17:29,793 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 18:17:29,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 18:17:29,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 18:17:29,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:17:29,795 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 18:17:29,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 18:17:29,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:17:29,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 18:17:29,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:17:29,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 18:17:29,797 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 18:17:29,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 18:17:29,797 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:17:29,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 18:17:29,798 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 18:17:29,798 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 18:17:29,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:17:29,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:17:29,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:17:29,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:17:29,799 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 18:17:29,799 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 18:17:29,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 18:17:29,800 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 18:17:29,800 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_9abfbe94-0c88-4f76-8146-fde838cdc45d/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abfbe94-0c88-4f76-8146-fde838cdc45d/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60469f846b13a80cdc42678f152a01a7fd1982577a035f0bf10de91b64b0b315 [2022-11-20 18:17:30,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:17:30,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:17:30,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:17:30,117 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:17:30,118 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:17:30,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abfbe94-0c88-4f76-8146-fde838cdc45d/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-restricted-15/WhileDecr.c [2022-11-20 18:17:33,123 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:17:33,325 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:17:33,326 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abfbe94-0c88-4f76-8146-fde838cdc45d/sv-benchmarks/c/termination-restricted-15/WhileDecr.c [2022-11-20 18:17:33,332 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abfbe94-0c88-4f76-8146-fde838cdc45d/bin/ukojak-pZX7IvK2PQ/data/2343215bf/a98c494994ba4b15a3cd27fb76a708b6/FLAG32c5387e5 [2022-11-20 18:17:33,347 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abfbe94-0c88-4f76-8146-fde838cdc45d/bin/ukojak-pZX7IvK2PQ/data/2343215bf/a98c494994ba4b15a3cd27fb76a708b6 [2022-11-20 18:17:33,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:17:33,352 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:17:33,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:17:33,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:17:33,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:17:33,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:17:33" (1/1) ... [2022-11-20 18:17:33,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@603881ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:17:33, skipping insertion in model container [2022-11-20 18:17:33,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:17:33" (1/1) ... [2022-11-20 18:17:33,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:17:33,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:17:33,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:17:33,531 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:17:33,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:17:33,553 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:17:33,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:17:33 WrapperNode [2022-11-20 18:17:33,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:17:33,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:17:33,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:17:33,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:17:33,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:17:33" (1/1) ... [2022-11-20 18:17:33,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:17:33" (1/1) ... [2022-11-20 18:17:33,586 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2022-11-20 18:17:33,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:17:33,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:17:33,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:17:33,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:17:33,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:17:33" (1/1) ... [2022-11-20 18:17:33,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:17:33" (1/1) ... [2022-11-20 18:17:33,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:17:33" (1/1) ... [2022-11-20 18:17:33,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:17:33" (1/1) ... [2022-11-20 18:17:33,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:17:33" (1/1) ... [2022-11-20 18:17:33,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:17:33" (1/1) ... [2022-11-20 18:17:33,601 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:17:33" (1/1) ... [2022-11-20 18:17:33,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:17:33" (1/1) ... [2022-11-20 18:17:33,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:17:33,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:17:33,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:17:33,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:17:33,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:17:33" (1/1) ... [2022-11-20 18:17:33,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:17:33,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abfbe94-0c88-4f76-8146-fde838cdc45d/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 18:17:33,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abfbe94-0c88-4f76-8146-fde838cdc45d/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 18:17:33,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abfbe94-0c88-4f76-8146-fde838cdc45d/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 18:17:33,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:17:33,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:17:33,771 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:17:33,773 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:17:33,869 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:17:33,903 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:17:33,903 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 18:17:33,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:17:33 BoogieIcfgContainer [2022-11-20 18:17:33,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 18:17:33,907 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 18:17:33,907 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 18:17:33,918 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 18:17:33,918 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:17:33" (1/1) ... [2022-11-20 18:17:33,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:17:33,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:17:34,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-11-20 18:17:34,000 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2022-11-20 18:17:34,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 18:17:34,003 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:17:34,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:17:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:17:34,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:17:34,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:17:34,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2022-11-20 18:17:34,182 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2022-11-20 18:17:34,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 18:17:34,182 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:17:34,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:17:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:17:34,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:17:34,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:17:34,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2022-11-20 18:17:34,265 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2022-11-20 18:17:34,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 18:17:34,265 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:17:34,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:17:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:17:34,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:17:34,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:17:34,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2022-11-20 18:17:34,375 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2022-11-20 18:17:34,376 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 18:17:34,376 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2022-11-20 18:17:34,384 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2022-11-20 18:17:34,400 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2022-11-20 18:17:34,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 06:17:34 ImpRootNode [2022-11-20 18:17:34,409 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 18:17:34,410 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 18:17:34,410 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 18:17:34,410 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 18:17:34,411 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:17:33" (3/4) ... [2022-11-20 18:17:34,414 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 18:17:34,423 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-20 18:17:34,424 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 18:17:34,424 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 18:17:34,476 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abfbe94-0c88-4f76-8146-fde838cdc45d/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 18:17:34,476 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 18:17:34,477 INFO L158 Benchmark]: Toolchain (without parser) took 1125.23ms. Allocated memory is still 205.5MB. Free memory was 159.1MB in the beginning and 117.3MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-20 18:17:34,480 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 151.0MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:17:34,483 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.68ms. Allocated memory is still 205.5MB. Free memory was 159.1MB in the beginning and 150.2MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 18:17:34,484 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.01ms. Allocated memory is still 205.5MB. Free memory was 150.2MB in the beginning and 148.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:17:34,489 INFO L158 Benchmark]: Boogie Preprocessor took 15.75ms. Allocated memory is still 205.5MB. Free memory was 148.7MB in the beginning and 147.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:17:34,490 INFO L158 Benchmark]: RCFGBuilder took 302.76ms. Allocated memory is still 205.5MB. Free memory was 147.6MB in the beginning and 138.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 18:17:34,491 INFO L158 Benchmark]: CodeCheck took 502.24ms. Allocated memory is still 205.5MB. Free memory was 138.2MB in the beginning and 119.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 18:17:34,491 INFO L158 Benchmark]: Witness Printer took 66.24ms. Allocated memory is still 205.5MB. Free memory was 119.4MB in the beginning and 117.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:17:34,499 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, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 0 mSDtfsCounter, 58 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 83 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: 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: 9]: Loop Invariant Derived loop invariant: i <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 151.0MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 201.68ms. Allocated memory is still 205.5MB. Free memory was 159.1MB in the beginning and 150.2MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.01ms. Allocated memory is still 205.5MB. Free memory was 150.2MB in the beginning and 148.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.75ms. Allocated memory is still 205.5MB. Free memory was 148.7MB in the beginning and 147.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 302.76ms. Allocated memory is still 205.5MB. Free memory was 147.6MB in the beginning and 138.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 502.24ms. Allocated memory is still 205.5MB. Free memory was 138.2MB in the beginning and 119.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 66.24ms. Allocated memory is still 205.5MB. Free memory was 119.4MB in the beginning and 117.3MB 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! [2022-11-20 18:17:34,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abfbe94-0c88-4f76-8146-fde838cdc45d/bin/ukojak-pZX7IvK2PQ/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