./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/EvenOdd03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a420f5c4-8004-4948-8770-383fb9e204c2/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a420f5c4-8004-4948-8770-383fb9e204c2/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a420f5c4-8004-4948-8770-383fb9e204c2/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a420f5c4-8004-4948-8770-383fb9e204c2/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/EvenOdd03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a420f5c4-8004-4948-8770-383fb9e204c2/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a420f5c4-8004-4948-8770-383fb9e204c2/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eda92234de2991558d0fa68c10405194bf8879d4d71f81bbe5c79bf2cf318fe2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:23:57,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:23:57,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:23:57,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:23:57,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:23:57,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:23:57,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:23:57,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:23:57,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:23:57,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:23:57,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:23:57,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:23:57,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:23:57,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:23:57,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:23:57,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:23:57,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:23:57,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:23:57,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:23:57,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:23:57,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:23:57,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:23:57,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:23:57,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:23:57,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:23:57,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:23:57,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:23:57,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:23:57,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:23:57,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:23:57,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:23:57,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:23:57,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:23:57,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:23:57,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:23:57,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:23:57,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:23:57,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:23:57,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:23:57,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:23:57,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:23:57,800 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a420f5c4-8004-4948-8770-383fb9e204c2/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:23:57,853 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:23:57,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:23:57,854 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:23:57,855 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:23:57,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:23:57,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:23:57,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:23:57,856 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:23:57,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:23:57,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:23:57,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:23:57,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:23:57,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:23:57,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:23:57,857 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:23:57,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:23:57,858 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:23:57,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:23:57,858 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:23:57,859 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:23:57,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:23:57,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:23:57,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:23:57,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:23:57,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:23:57,860 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:23:57,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:23:57,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:23:57,860 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_a420f5c4-8004-4948-8770-383fb9e204c2/bin/ukojak-LBtLqBUTdQ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a420f5c4-8004-4948-8770-383fb9e204c2/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eda92234de2991558d0fa68c10405194bf8879d4d71f81bbe5c79bf2cf318fe2 [2021-11-23 00:23:58,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:23:58,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:23:58,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:23:58,126 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:23:58,127 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:23:58,130 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a420f5c4-8004-4948-8770-383fb9e204c2/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/recursive/EvenOdd03.c [2021-11-23 00:23:58,201 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a420f5c4-8004-4948-8770-383fb9e204c2/bin/ukojak-LBtLqBUTdQ/data/237f93ec5/c98ab3a5461d480fb1aaf077eb641dad/FLAG157aaec97 [2021-11-23 00:23:58,687 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:23:58,689 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a420f5c4-8004-4948-8770-383fb9e204c2/sv-benchmarks/c/recursive/EvenOdd03.c [2021-11-23 00:23:58,704 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a420f5c4-8004-4948-8770-383fb9e204c2/bin/ukojak-LBtLqBUTdQ/data/237f93ec5/c98ab3a5461d480fb1aaf077eb641dad/FLAG157aaec97 [2021-11-23 00:23:59,058 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a420f5c4-8004-4948-8770-383fb9e204c2/bin/ukojak-LBtLqBUTdQ/data/237f93ec5/c98ab3a5461d480fb1aaf077eb641dad [2021-11-23 00:23:59,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:23:59,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:23:59,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:23:59,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:23:59,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:23:59,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:23:59" (1/1) ... [2021-11-23 00:23:59,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30d3809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:59, skipping insertion in model container [2021-11-23 00:23:59,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:23:59" (1/1) ... [2021-11-23 00:23:59,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:23:59,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:23:59,307 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a420f5c4-8004-4948-8770-383fb9e204c2/sv-benchmarks/c/recursive/EvenOdd03.c[974,987] [2021-11-23 00:23:59,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:23:59,319 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:23:59,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a420f5c4-8004-4948-8770-383fb9e204c2/sv-benchmarks/c/recursive/EvenOdd03.c[974,987] [2021-11-23 00:23:59,341 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:23:59,358 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:23:59,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:59 WrapperNode [2021-11-23 00:23:59,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:23:59,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:23:59,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:23:59,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:23:59,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:59" (1/1) ... [2021-11-23 00:23:59,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:59" (1/1) ... [2021-11-23 00:23:59,403 INFO L137 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2021-11-23 00:23:59,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:23:59,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:23:59,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:23:59,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:23:59,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:59" (1/1) ... [2021-11-23 00:23:59,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:59" (1/1) ... [2021-11-23 00:23:59,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:59" (1/1) ... [2021-11-23 00:23:59,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:59" (1/1) ... [2021-11-23 00:23:59,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:59" (1/1) ... [2021-11-23 00:23:59,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:59" (1/1) ... [2021-11-23 00:23:59,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:59" (1/1) ... [2021-11-23 00:23:59,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:23:59,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:23:59,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:23:59,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:23:59,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:59" (1/1) ... [2021-11-23 00:23:59,465 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:23:59,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a420f5c4-8004-4948-8770-383fb9e204c2/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:23:59,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a420f5c4-8004-4948-8770-383fb9e204c2/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:23:59,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a420f5c4-8004-4948-8770-383fb9e204c2/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:23:59,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:23:59,542 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2021-11-23 00:23:59,542 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2021-11-23 00:23:59,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:23:59,544 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2021-11-23 00:23:59,544 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2021-11-23 00:23:59,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:23:59,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:23:59,615 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:23:59,617 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:23:59,796 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:23:59,808 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:23:59,821 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 00:23:59,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:23:59 BoogieIcfgContainer [2021-11-23 00:23:59,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:23:59,825 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:23:59,825 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:23:59,844 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:23:59,844 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:23:59" (1/1) ... [2021-11-23 00:23:59,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:23:59,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:59,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2021-11-23 00:23:59,935 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2021-11-23 00:23:59,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 00:23:59,943 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:59,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:24:00,042 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:24:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:24:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:24:00,118 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:24:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:24:00,145 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-11-23 00:24:00,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:24:00 ImpRootNode [2021-11-23 00:24:00,180 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:24:00,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:24:00,180 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:24:00,181 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:24:00,181 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:23:59" (3/4) ... [2021-11-23 00:24:00,183 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 00:24:00,216 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a420f5c4-8004-4948-8770-383fb9e204c2/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:24:00,217 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:24:00,218 INFO L158 Benchmark]: Toolchain (without parser) took 1152.18ms. Allocated memory is still 123.7MB. Free memory was 93.7MB in the beginning and 72.1MB in the end (delta: 21.6MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2021-11-23 00:24:00,218 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 123.7MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:24:00,219 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.03ms. Allocated memory is still 123.7MB. Free memory was 93.4MB in the beginning and 98.5MB in the end (delta: -5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:24:00,220 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.21ms. Allocated memory is still 123.7MB. Free memory was 98.5MB in the beginning and 97.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:24:00,220 INFO L158 Benchmark]: Boogie Preprocessor took 41.89ms. Allocated memory is still 123.7MB. Free memory was 97.2MB in the beginning and 96.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:24:00,221 INFO L158 Benchmark]: RCFGBuilder took 377.08ms. Allocated memory is still 123.7MB. Free memory was 96.1MB in the beginning and 86.4MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 00:24:00,222 INFO L158 Benchmark]: CodeCheck took 354.76ms. Allocated memory is still 123.7MB. Free memory was 86.4MB in the beginning and 73.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 00:24:00,222 INFO L158 Benchmark]: Witness Printer took 36.58ms. Allocated memory is still 123.7MB. Free memory was 73.7MB in the beginning and 72.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:24:00,226 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 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - CounterExampleResult [Line: 49]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L40] int n = __VERIFIER_nondet_int(); [L41] COND FALSE !(n < 0) VAL [n=0] [L44] CALL, EXPR isEven(n) VAL [\old(n)=0] [L29] COND TRUE n == 0 [L30] return 1; VAL [\old(n)=0, \result=1, n=0] [L44] RET, EXPR isEven(n) VAL [isEven(n)=1, n=0] [L44] int result = isEven(n); [L45] int mod = n % 2; VAL [mod=0, n=0, result=1] [L46] COND FALSE !(result < 0 || result == mod) VAL [mod=0, n=0, result=1] [L49] reach_error() VAL [mod=0, n=0, result=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 123.7MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.03ms. Allocated memory is still 123.7MB. Free memory was 93.4MB in the beginning and 98.5MB in the end (delta: -5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.21ms. Allocated memory is still 123.7MB. Free memory was 98.5MB in the beginning and 97.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.89ms. Allocated memory is still 123.7MB. Free memory was 97.2MB in the beginning and 96.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 377.08ms. Allocated memory is still 123.7MB. Free memory was 96.1MB in the beginning and 86.4MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 354.76ms. Allocated memory is still 123.7MB. Free memory was 86.4MB in the beginning and 73.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 36.58ms. Allocated memory is still 123.7MB. Free memory was 73.7MB in the beginning and 72.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 00:24:00,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a420f5c4-8004-4948-8770-383fb9e204c2/bin/ukojak-LBtLqBUTdQ/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE