./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a.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_d0978ed8-fa45-46f5-b952-e1903d56d098/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0978ed8-fa45-46f5-b952-e1903d56d098/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_d0978ed8-fa45-46f5-b952-e1903d56d098/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0978ed8-fa45-46f5-b952-e1903d56d098/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0978ed8-fa45-46f5-b952-e1903d56d098/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_d0978ed8-fa45-46f5-b952-e1903d56d098/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 bb3f76d55016616b178303c0eddf93fcbee588d4887c9917c414ed1a56e984ba .............................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:58:49,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:58:49,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:58:49,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:58:49,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:58:49,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:58:49,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:58:49,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:58:49,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:58:49,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:58:49,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:58:49,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:58:49,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:58:49,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:58:49,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:58:49,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:58:49,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:58:49,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:58:49,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:58:49,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:58:49,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:58:49,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:58:49,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:58:49,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:58:49,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:58:49,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:58:49,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:58:49,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:58:49,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:58:49,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:58:49,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:58:49,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:58:49,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:58:49,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:58:49,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:58:49,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:58:49,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:58:49,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:58:49,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:58:49,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:58:49,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:58:49,222 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0978ed8-fa45-46f5-b952-e1903d56d098/bin/ukojak-Rh5K9KB4LI/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-10-29 03:58:49,272 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:58:49,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:58:49,274 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:58:49,275 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:58:49,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:58:49,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:58:49,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:58:49,276 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 03:58:49,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:58:49,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:58:49,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:58:49,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:58:49,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:58:49,285 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-29 03:58:49,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:58:49,285 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:58:49,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:58:49,285 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:58:49,286 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:58:49,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:58:49,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:58:49,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:58:49,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:58:49,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:58:49,287 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:58:49,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:58:49,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:58:49,288 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_d0978ed8-fa45-46f5-b952-e1903d56d098/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0978ed8-fa45-46f5-b952-e1903d56d098/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb3f76d55016616b178303c0eddf93fcbee588d4887c9917c414ed1a56e984ba [2021-10-29 03:58:49,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:58:49,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:58:49,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:58:49,634 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:58:49,635 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:58:49,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0978ed8-fa45-46f5-b952-e1903d56d098/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a.c [2021-10-29 03:58:49,708 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0978ed8-fa45-46f5-b952-e1903d56d098/bin/ukojak-Rh5K9KB4LI/data/29b4aff05/f409d5a44c2842a696fc96d625968b65/FLAGa0acfe3ab [2021-10-29 03:58:50,190 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:58:50,190 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0978ed8-fa45-46f5-b952-e1903d56d098/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a.c [2021-10-29 03:58:50,202 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0978ed8-fa45-46f5-b952-e1903d56d098/bin/ukojak-Rh5K9KB4LI/data/29b4aff05/f409d5a44c2842a696fc96d625968b65/FLAGa0acfe3ab [2021-10-29 03:58:50,564 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0978ed8-fa45-46f5-b952-e1903d56d098/bin/ukojak-Rh5K9KB4LI/data/29b4aff05/f409d5a44c2842a696fc96d625968b65 [2021-10-29 03:58:50,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:58:50,568 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:58:50,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:58:50,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:58:50,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:58:50,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:58:50" (1/1) ... [2021-10-29 03:58:50,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@190626ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:50, skipping insertion in model container [2021-10-29 03:58:50,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:58:50" (1/1) ... [2021-10-29 03:58:50,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:58:50,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:58:50,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:58:50,773 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:58:50,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:58:50,799 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:58:50,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:50 WrapperNode [2021-10-29 03:58:50,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:58:50,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:58:50,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:58:50,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:58:50,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:50" (1/1) ... [2021-10-29 03:58:50,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:50" (1/1) ... [2021-10-29 03:58:50,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:58:50,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:58:50,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:58:50,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:58:50,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:50" (1/1) ... [2021-10-29 03:58:50,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:50" (1/1) ... [2021-10-29 03:58:50,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:50" (1/1) ... [2021-10-29 03:58:50,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:50" (1/1) ... [2021-10-29 03:58:50,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:50" (1/1) ... [2021-10-29 03:58:50,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:50" (1/1) ... [2021-10-29 03:58:50,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:50" (1/1) ... [2021-10-29 03:58:50,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:58:50,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:58:50,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:58:50,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:58:50,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:58:50" (1/1) ... [2021-10-29 03:58:50,866 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:58:50,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0978ed8-fa45-46f5-b952-e1903d56d098/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:58:50,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0978ed8-fa45-46f5-b952-e1903d56d098/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:58:50,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0978ed8-fa45-46f5-b952-e1903d56d098/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:58:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:58:50,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:58:51,148 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:58:51,148 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-29 03:58:51,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:58:51 BoogieIcfgContainer [2021-10-29 03:58:51,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:58:51,152 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:58:51,153 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:58:51,164 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:58:51,165 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:58:51" (1/1) ... [2021-10-29 03:58:51,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:58:51,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:58:51,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2021-10-29 03:58:51,208 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2021-10-29 03:58:51,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 03:58:51,210 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:58:51,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:58:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:58:51,332 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 03:58:51,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:58:51,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2021-10-29 03:58:51,355 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2021-10-29 03:58:51,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 03:58:51,355 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:58:51,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:58:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:58:51,379 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 03:58:51,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:58:51,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2021-10-29 03:58:51,424 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2021-10-29 03:58:51,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:58:51,425 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:58:51,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:58:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:58:51,472 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 03:58:51,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:58:51,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2021-10-29 03:58:51,608 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-10-29 03:58:51,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:58:51,608 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:58:51,609 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:58:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:58:51,633 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 03:58:51,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:58:51,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2021-10-29 03:58:51,737 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2021-10-29 03:58:51,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 03:58:51,738 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:58:51,738 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:58:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:58:51,848 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:58:52,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:58:52,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2021-10-29 03:58:52,068 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-10-29 03:58:52,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 03:58:52,068 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:58:52,069 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:58:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:58:52,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:58:52,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:58:52,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2021-10-29 03:58:52,153 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-10-29 03:58:52,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 03:58:52,153 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2021-10-29 03:58:52,160 INFO L759 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2021-10-29 03:58:52,197 INFO L565 CodeCheckObserver]: Invariant with dag size 8 [2021-10-29 03:58:52,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:58:52 ImpRootNode [2021-10-29 03:58:52,209 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:58:52,210 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:58:52,210 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:58:52,210 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:58:52,211 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:58:51" (3/4) ... [2021-10-29 03:58:52,215 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 03:58:52,226 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-29 03:58:52,227 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-29 03:58:52,227 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 03:58:52,295 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0978ed8-fa45-46f5-b952-e1903d56d098/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:58:52,296 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:58:52,297 INFO L168 Benchmark]: Toolchain (without parser) took 1727.97 ms. Allocated memory was 81.8 MB in the beginning and 104.9 MB in the end (delta: 23.1 MB). Free memory was 44.2 MB in the beginning and 70.3 MB in the end (delta: -26.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:58:52,298 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory is still 60.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:58:52,299 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.08 ms. Allocated memory was 81.8 MB in the beginning and 104.9 MB in the end (delta: 23.1 MB). Free memory was 44.0 MB in the beginning and 82.6 MB in the end (delta: -38.7 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:58:52,299 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.69 ms. Allocated memory is still 104.9 MB. Free memory was 82.6 MB in the beginning and 81.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:58:52,300 INFO L168 Benchmark]: Boogie Preprocessor took 24.27 ms. Allocated memory is still 104.9 MB. Free memory was 81.4 MB in the beginning and 80.4 MB in the end (delta: 931.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:58:52,300 INFO L168 Benchmark]: RCFGBuilder took 293.40 ms. Allocated memory is still 104.9 MB. Free memory was 80.4 MB in the beginning and 72.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:58:52,301 INFO L168 Benchmark]: CodeCheck took 1056.91 ms. Allocated memory is still 104.9 MB. Free memory was 72.0 MB in the beginning and 73.2 MB in the end (delta: -1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:58:52,301 INFO L168 Benchmark]: Witness Printer took 86.10 ms. Allocated memory is still 104.9 MB. Free memory was 73.1 MB in the beginning and 70.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 03:58:52,312 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, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 224 SDtfs, 322 SDslu, 0 SDs, 0 SdLazy, 1200 SolverSat, 310 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 276 GetRequests, 245 SyntacticMatches, 7 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 79 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 4/5 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: x <= 2147483647 && 0 <= x + 2147483648 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory is still 60.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 230.08 ms. Allocated memory was 81.8 MB in the beginning and 104.9 MB in the end (delta: 23.1 MB). Free memory was 44.0 MB in the beginning and 82.6 MB in the end (delta: -38.7 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.69 ms. Allocated memory is still 104.9 MB. Free memory was 82.6 MB in the beginning and 81.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.27 ms. Allocated memory is still 104.9 MB. Free memory was 81.4 MB in the beginning and 80.4 MB in the end (delta: 931.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 293.40 ms. Allocated memory is still 104.9 MB. Free memory was 80.4 MB in the beginning and 72.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * CodeCheck took 1056.91 ms. Allocated memory is still 104.9 MB. Free memory was 72.0 MB in the beginning and 73.2 MB in the end (delta: -1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 86.10 ms. Allocated memory is still 104.9 MB. Free memory was 73.1 MB in the beginning and 70.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-29 03:58:52,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0978ed8-fa45-46f5-b952-e1903d56d098/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...