./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.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_16130721-ae5a-4a4a-aae3-dfd24b26fe32/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16130721-ae5a-4a4a-aae3-dfd24b26fe32/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_16130721-ae5a-4a4a-aae3-dfd24b26fe32/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16130721-ae5a-4a4a-aae3-dfd24b26fe32/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16130721-ae5a-4a4a-aae3-dfd24b26fe32/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_16130721-ae5a-4a4a-aae3-dfd24b26fe32/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 296e9988b55edbc54108eff44b47c089045df177e779a079877f1dfcae166da5 .............................................................................................................................................................................................................................................. 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 03:27:41,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:27:41,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:27:41,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:27:41,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:27:41,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:27:41,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:27:41,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:27:41,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:27:41,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:27:41,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:27:41,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:27:41,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:27:41,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:27:41,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:27:41,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:27:41,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:27:41,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:27:41,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:27:41,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:27:41,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:27:41,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:27:41,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:27:41,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:27:41,765 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:27:41,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:27:41,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:27:41,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:27:41,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:27:41,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:27:41,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:27:41,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:27:41,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:27:41,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:27:41,773 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:27:41,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:27:41,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:27:41,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:27:41,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:27:41,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:27:41,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:27:41,778 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16130721-ae5a-4a4a-aae3-dfd24b26fe32/bin/ukojak-Rh5K9KB4LI/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-10-29 03:27:41,803 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:27:41,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:27:41,804 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:27:41,804 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:27:41,804 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:27:41,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:27:41,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:27:41,805 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 03:27:41,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:27:41,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:27:41,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:27:41,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:27:41,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:27:41,806 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-29 03:27:41,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:27:41,807 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:27:41,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:27:41,807 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:27:41,807 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:27:41,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:27:41,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:27:41,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:27:41,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:27:41,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:27:41,808 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:27:41,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:27:41,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:27:41,809 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_16130721-ae5a-4a4a-aae3-dfd24b26fe32/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16130721-ae5a-4a4a-aae3-dfd24b26fe32/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 296e9988b55edbc54108eff44b47c089045df177e779a079877f1dfcae166da5 [2021-10-29 03:27:42,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:27:42,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:27:42,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:27:42,143 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:27:42,144 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:27:42,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16130721-ae5a-4a4a-aae3-dfd24b26fe32/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c [2021-10-29 03:27:42,241 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16130721-ae5a-4a4a-aae3-dfd24b26fe32/bin/ukojak-Rh5K9KB4LI/data/9569f9841/63734e57c68f49cdbb1b6b366c37e18b/FLAG9eaead863 [2021-10-29 03:27:42,742 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:27:42,742 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16130721-ae5a-4a4a-aae3-dfd24b26fe32/sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c [2021-10-29 03:27:42,748 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16130721-ae5a-4a4a-aae3-dfd24b26fe32/bin/ukojak-Rh5K9KB4LI/data/9569f9841/63734e57c68f49cdbb1b6b366c37e18b/FLAG9eaead863 [2021-10-29 03:27:43,141 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16130721-ae5a-4a4a-aae3-dfd24b26fe32/bin/ukojak-Rh5K9KB4LI/data/9569f9841/63734e57c68f49cdbb1b6b366c37e18b [2021-10-29 03:27:43,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:27:43,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:27:43,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:27:43,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:27:43,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:27:43,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:27:43" (1/1) ... [2021-10-29 03:27:43,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30b0559c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:43, skipping insertion in model container [2021-10-29 03:27:43,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:27:43" (1/1) ... [2021-10-29 03:27:43,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:27:43,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:27:43,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:27:43,352 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:27:43,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:27:43,387 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:27:43,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:43 WrapperNode [2021-10-29 03:27:43,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:27:43,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:27:43,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:27:43,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:27:43,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:43" (1/1) ... [2021-10-29 03:27:43,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:43" (1/1) ... [2021-10-29 03:27:43,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:27:43,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:27:43,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:27:43,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:27:43,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:43" (1/1) ... [2021-10-29 03:27:43,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:43" (1/1) ... [2021-10-29 03:27:43,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:43" (1/1) ... [2021-10-29 03:27:43,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:43" (1/1) ... [2021-10-29 03:27:43,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:43" (1/1) ... [2021-10-29 03:27:43,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:43" (1/1) ... [2021-10-29 03:27:43,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:43" (1/1) ... [2021-10-29 03:27:43,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:27:43,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:27:43,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:27:43,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:27:43,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:43" (1/1) ... [2021-10-29 03:27:43,449 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:27:43,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16130721-ae5a-4a4a-aae3-dfd24b26fe32/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:27:43,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16130721-ae5a-4a4a-aae3-dfd24b26fe32/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:27:43,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16130721-ae5a-4a4a-aae3-dfd24b26fe32/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:27:43,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:27:43,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:27:43,787 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:27:43,788 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-29 03:27:43,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:27:43 BoogieIcfgContainer [2021-10-29 03:27:43,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:27:43,791 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:27:43,791 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:27:43,802 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:27:43,802 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:27:43" (1/1) ... [2021-10-29 03:27:43,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:27:43,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:43,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 20 states and 21 transitions. [2021-10-29 03:27:43,846 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2021-10-29 03:27:43,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 03:27:43,849 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:43,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:43,980 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 03:27:44,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:44,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2021-10-29 03:27:44,003 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2021-10-29 03:27:44,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 03:27:44,003 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:44,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:44,031 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 03:27:44,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:44,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 25 states and 32 transitions. [2021-10-29 03:27:44,082 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2021-10-29 03:27:44,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:27:44,083 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:44,083 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:44,145 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 03:27:44,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:44,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 30 states and 42 transitions. [2021-10-29 03:27:44,397 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2021-10-29 03:27:44,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:27:44,398 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:44,398 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:27:44,421 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:27:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:27:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:27:44,466 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:27:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:27:44,485 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2021-10-29 03:27:44,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:27:44 ImpRootNode [2021-10-29 03:27:44,502 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:27:44,503 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:27:44,503 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:27:44,503 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:27:44,504 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:27:43" (3/4) ... [2021-10-29 03:27:44,506 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 03:27:44,542 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16130721-ae5a-4a4a-aae3-dfd24b26fe32/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:27:44,542 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:27:44,544 INFO L168 Benchmark]: Toolchain (without parser) took 1397.66 ms. Allocated memory is still 115.3 MB. Free memory was 75.6 MB in the beginning and 55.8 MB in the end (delta: 19.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2021-10-29 03:27:44,545 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 115.3 MB. Free memory is still 91.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:27:44,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.19 ms. Allocated memory is still 115.3 MB. Free memory was 75.5 MB in the beginning and 91.5 MB in the end (delta: -16.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 03:27:44,548 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.57 ms. Allocated memory is still 115.3 MB. Free memory was 91.5 MB in the beginning and 90.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:27:44,552 INFO L168 Benchmark]: Boogie Preprocessor took 18.56 ms. Allocated memory is still 115.3 MB. Free memory was 90.4 MB in the beginning and 89.4 MB in the end (delta: 968.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:27:44,553 INFO L168 Benchmark]: RCFGBuilder took 351.98 ms. Allocated memory is still 115.3 MB. Free memory was 89.4 MB in the beginning and 79.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:27:44,554 INFO L168 Benchmark]: CodeCheck took 711.29 ms. Allocated memory is still 115.3 MB. Free memory was 79.9 MB in the beginning and 57.4 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:27:44,554 INFO L168 Benchmark]: Witness Printer took 38.99 ms. Allocated memory is still 115.3 MB. Free memory was 57.4 MB in the beginning and 55.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:27:44,558 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 20 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 40 SDslu, 68 SDs, 0 SdLazy, 98 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: [L15] int c, u, v, w, x, y, z; [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] z = __VERIFIER_nondet_int() [L19] u = x [L20] v = y [L21] w = z [L22] c = 0 [L23] COND TRUE x >= y [L24] EXPR c + 1 [L24] c = c + 1 [L25] COND FALSE !(z > 1) [L29] y + 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 115.3 MB. Free memory is still 91.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 241.19 ms. Allocated memory is still 115.3 MB. Free memory was 75.5 MB in the beginning and 91.5 MB in the end (delta: -16.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.57 ms. Allocated memory is still 115.3 MB. Free memory was 91.5 MB in the beginning and 90.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.56 ms. Allocated memory is still 115.3 MB. Free memory was 90.4 MB in the beginning and 89.4 MB in the end (delta: 968.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 351.98 ms. Allocated memory is still 115.3 MB. Free memory was 89.4 MB in the beginning and 79.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * CodeCheck took 711.29 ms. Allocated memory is still 115.3 MB. Free memory was 79.9 MB in the beginning and 57.4 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 38.99 ms. Allocated memory is still 115.3 MB. Free memory was 57.4 MB in the beginning and 55.8 MB in the end (delta: 1.6 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 03:27:44,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16130721-ae5a-4a4a-aae3-dfd24b26fe32/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request...