./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ace9c5-5e6c-4f6b-8e96-4df018a2f4e4/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ace9c5-5e6c-4f6b-8e96-4df018a2f4e4/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ace9c5-5e6c-4f6b-8e96-4df018a2f4e4/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ace9c5-5e6c-4f6b-8e96-4df018a2f4e4/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ace9c5-5e6c-4f6b-8e96-4df018a2f4e4/bin/ukojak-Rh5K9KB4LI/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ace9c5-5e6c-4f6b-8e96-4df018a2f4e4/bin/ukojak-Rh5K9KB4LI --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 d6984ce947edd44f0505e125be96f5769f9348f9c3acb95fd5f2e7ef0f2e794d ................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:55:55,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:55:55,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:55:56,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:55:56,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:55:56,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:55:56,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:55:56,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:55:56,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:55:56,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:55:56,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:55:56,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:55:56,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:55:56,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:55:56,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:55:56,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:55:56,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:55:56,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:55:56,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:55:56,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:55:56,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:55:56,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:55:56,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:55:56,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:55:56,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:55:56,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:55:56,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:55:56,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:55:56,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:55:56,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:55:56,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:55:56,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:55:56,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:55:56,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:55:56,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:55:56,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:55:56,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:55:56,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:55:56,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:55:56,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:55:56,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:55:56,075 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ace9c5-5e6c-4f6b-8e96-4df018a2f4e4/bin/ukojak-Rh5K9KB4LI/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-10-29 03:55:56,127 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:55:56,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:55:56,131 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:55:56,132 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:55:56,132 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:55:56,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:55:56,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:55:56,133 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 03:55:56,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:55:56,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:55:56,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:55:56,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:55:56,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:55:56,142 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-29 03:55:56,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:55:56,142 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:55:56,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:55:56,143 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:55:56,143 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:55:56,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:55:56,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:55:56,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:55:56,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:55:56,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:55:56,144 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:55:56,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:55:56,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:55:56,145 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_a6ace9c5-5e6c-4f6b-8e96-4df018a2f4e4/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ace9c5-5e6c-4f6b-8e96-4df018a2f4e4/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6984ce947edd44f0505e125be96f5769f9348f9c3acb95fd5f2e7ef0f2e794d [2021-10-29 03:55:56,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:55:56,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:55:56,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:55:56,445 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:55:56,446 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:55:56,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ace9c5-5e6c-4f6b-8e96-4df018a2f4e4/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c [2021-10-29 03:55:56,548 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ace9c5-5e6c-4f6b-8e96-4df018a2f4e4/bin/ukojak-Rh5K9KB4LI/data/ee26f8912/614ef9e8368346a5959ca6710a036a70/FLAG2505c47ea [2021-10-29 03:55:57,075 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:55:57,075 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ace9c5-5e6c-4f6b-8e96-4df018a2f4e4/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c [2021-10-29 03:55:57,081 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ace9c5-5e6c-4f6b-8e96-4df018a2f4e4/bin/ukojak-Rh5K9KB4LI/data/ee26f8912/614ef9e8368346a5959ca6710a036a70/FLAG2505c47ea [2021-10-29 03:55:57,472 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ace9c5-5e6c-4f6b-8e96-4df018a2f4e4/bin/ukojak-Rh5K9KB4LI/data/ee26f8912/614ef9e8368346a5959ca6710a036a70 [2021-10-29 03:55:57,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:55:57,482 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:55:57,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:55:57,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:55:57,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:55:57,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:55:57" (1/1) ... [2021-10-29 03:55:57,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69190c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:55:57, skipping insertion in model container [2021-10-29 03:55:57,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:55:57" (1/1) ... [2021-10-29 03:55:57,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:55:57,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:55:57,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:55:57,652 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:55:57,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:55:57,697 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:55:57,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:55:57 WrapperNode [2021-10-29 03:55:57,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:55:57,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:55:57,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:55:57,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:55:57,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:55:57" (1/1) ... [2021-10-29 03:55:57,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:55:57" (1/1) ... [2021-10-29 03:55:57,743 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:55:57,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:55:57,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:55:57,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:55:57,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:55:57" (1/1) ... [2021-10-29 03:55:57,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:55:57" (1/1) ... [2021-10-29 03:55:57,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:55:57" (1/1) ... [2021-10-29 03:55:57,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:55:57" (1/1) ... [2021-10-29 03:55:57,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:55:57" (1/1) ... [2021-10-29 03:55:57,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:55:57" (1/1) ... [2021-10-29 03:55:57,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:55:57" (1/1) ... [2021-10-29 03:55:57,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:55:57,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:55:57,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:55:57,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:55:57,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:55:57" (1/1) ... [2021-10-29 03:55:57,794 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:55:57,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ace9c5-5e6c-4f6b-8e96-4df018a2f4e4/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:55:57,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ace9c5-5e6c-4f6b-8e96-4df018a2f4e4/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:55:57,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ace9c5-5e6c-4f6b-8e96-4df018a2f4e4/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:55:57,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:55:57,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:55:58,141 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:55:58,141 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-29 03:55:58,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:55:58 BoogieIcfgContainer [2021-10-29 03:55:58,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:55:58,145 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:55:58,145 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:55:58,155 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:55:58,165 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:55:58" (1/1) ... [2021-10-29 03:55:58,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:55:58,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:55:58,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2021-10-29 03:55:58,217 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-10-29 03:55:58,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 03:55:58,219 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:55:58,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:55:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:55:58,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:55:58,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:55:58,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2021-10-29 03:55:58,432 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2021-10-29 03:55:58,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 03:55:58,432 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:55:58,433 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:55:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:55:58,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:55:58,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:55:58,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2021-10-29 03:55:58,690 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2021-10-29 03:55:58,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:55:58,691 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:55:58,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:55:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:55:58,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:55:58,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:55:58,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2021-10-29 03:55:58,854 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2021-10-29 03:55:58,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:55:58,855 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:55:58,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:55:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:55:58,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:55:59,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:55:59,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2021-10-29 03:55:59,130 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2021-10-29 03:55:59,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:55:59,130 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:55:59,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:55:59,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:55:59,142 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:55:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:55:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:55:59,178 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:55:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:55:59,201 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2021-10-29 03:55:59,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:55:59 ImpRootNode [2021-10-29 03:55:59,224 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:55:59,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:55:59,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:55:59,225 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:55:59,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:55:58" (3/4) ... [2021-10-29 03:55:59,228 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 03:55:59,287 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ace9c5-5e6c-4f6b-8e96-4df018a2f4e4/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:55:59,287 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:55:59,289 INFO L168 Benchmark]: Toolchain (without parser) took 1806.19 ms. Allocated memory was 98.6 MB in the beginning and 130.0 MB in the end (delta: 31.5 MB). Free memory was 61.4 MB in the beginning and 97.0 MB in the end (delta: -35.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:55:59,290 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 98.6 MB. Free memory was 77.7 MB in the beginning and 77.7 MB in the end (delta: 53.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:55:59,291 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.62 ms. Allocated memory is still 98.6 MB. Free memory was 61.1 MB in the beginning and 75.2 MB in the end (delta: -14.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:55:59,292 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.50 ms. Allocated memory is still 98.6 MB. Free memory was 75.2 MB in the beginning and 73.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:55:59,292 INFO L168 Benchmark]: Boogie Preprocessor took 38.66 ms. Allocated memory is still 98.6 MB. Free memory was 73.6 MB in the beginning and 72.9 MB in the end (delta: 793.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:55:59,293 INFO L168 Benchmark]: RCFGBuilder took 360.04 ms. Allocated memory is still 98.6 MB. Free memory was 72.9 MB in the beginning and 63.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:55:59,294 INFO L168 Benchmark]: CodeCheck took 1079.45 ms. Allocated memory was 98.6 MB in the beginning and 130.0 MB in the end (delta: 31.5 MB). Free memory was 63.9 MB in the beginning and 99.1 MB in the end (delta: -35.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:55:59,295 INFO L168 Benchmark]: Witness Printer took 62.38 ms. Allocated memory is still 130.0 MB. Free memory was 98.4 MB in the beginning and 97.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:55:59,300 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, 16 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 62 SDslu, 116 SDs, 0 SdLazy, 272 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 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 - CounterExampleResult [Line: 29]: integer overflow possible integer overflow possible We found a FailurePath: [L18] int x, y, oldx, oldy; [L19] x = __VERIFIER_nondet_int() [L20] y = __VERIFIER_nondet_int() [L21] COND TRUE x > 0 && y > 0 [L22] oldx = x [L23] oldy = y [L24] COND FALSE !(__VERIFIER_nondet_int() != 0) [L28] EXPR oldy - 2 [L28] x = oldy - 2 [L29] oldx + 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 98.6 MB. Free memory was 77.7 MB in the beginning and 77.7 MB in the end (delta: 53.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 216.62 ms. Allocated memory is still 98.6 MB. Free memory was 61.1 MB in the beginning and 75.2 MB in the end (delta: -14.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.50 ms. Allocated memory is still 98.6 MB. Free memory was 75.2 MB in the beginning and 73.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.66 ms. Allocated memory is still 98.6 MB. Free memory was 73.6 MB in the beginning and 72.9 MB in the end (delta: 793.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 360.04 ms. Allocated memory is still 98.6 MB. Free memory was 72.9 MB in the beginning and 63.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * CodeCheck took 1079.45 ms. Allocated memory was 98.6 MB in the beginning and 130.0 MB in the end (delta: 31.5 MB). Free memory was 63.9 MB in the beginning and 99.1 MB in the end (delta: -35.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 62.38 ms. Allocated memory is still 130.0 MB. Free memory was 98.4 MB in the beginning and 97.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 03:55:59,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ace9c5-5e6c-4f6b-8e96-4df018a2f4e4/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request...