./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark02_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_2ef9c44d-fcae-4082-b68f-541111f84989/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9c44d-fcae-4082-b68f-541111f84989/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_2ef9c44d-fcae-4082-b68f-541111f84989/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9c44d-fcae-4082-b68f-541111f84989/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark02_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9c44d-fcae-4082-b68f-541111f84989/bin/ukojak-Rh5K9KB4LI/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9c44d-fcae-4082-b68f-541111f84989/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 32bit --witnessprinter.graph.data.programhash a49557d960d757ebc59691c53a34969948d685fd24f146c763d0c70a84ed86eb ............................................................................................................................................................................................................................................. 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 03:54:05,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:54:05,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:54:05,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:54:05,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:54:05,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:54:05,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:54:05,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:54:05,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:54:05,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:54:05,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:54:05,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:54:05,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:54:05,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:54:05,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:54:05,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:54:05,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:54:05,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:54:05,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:54:05,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:54:05,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:54:05,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:54:05,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:54:05,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:54:05,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:54:05,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:54:05,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:54:05,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:54:05,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:54:05,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:54:05,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:54:05,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:54:05,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:54:05,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:54:05,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:54:05,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:54:05,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:54:05,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:54:05,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:54:05,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:54:05,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:54:05,706 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9c44d-fcae-4082-b68f-541111f84989/bin/ukojak-Rh5K9KB4LI/config/svcomp-Overflow-32bit-Kojak_Default.epf [2021-10-29 03:54:05,746 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:54:05,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:54:05,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:54:05,747 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:54:05,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:54:05,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:54:05,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:54:05,749 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:54:05,749 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 03:54:05,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:54:05,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:54:05,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:54:05,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:54:05,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:54:05,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:54:05,751 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-29 03:54:05,751 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:54:05,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:54:05,751 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:54:05,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:54:05,752 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:54:05,752 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:54:05,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:54:05,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:54:05,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:54:05,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:54:05,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:54:05,753 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:54:05,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:54:05,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:54:05,754 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_2ef9c44d-fcae-4082-b68f-541111f84989/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9c44d-fcae-4082-b68f-541111f84989/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a49557d960d757ebc59691c53a34969948d685fd24f146c763d0c70a84ed86eb [2021-10-29 03:54:06,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:54:06,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:54:06,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:54:06,060 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:54:06,061 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:54:06,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9c44d-fcae-4082-b68f-541111f84989/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/loop-zilu/benchmark02_linear.i [2021-10-29 03:54:06,139 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9c44d-fcae-4082-b68f-541111f84989/bin/ukojak-Rh5K9KB4LI/data/caa3a2134/21a3bc9b811f490f826705037e9abc0a/FLAGa376e0fa4 [2021-10-29 03:54:06,544 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:54:06,545 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9c44d-fcae-4082-b68f-541111f84989/sv-benchmarks/c/loop-zilu/benchmark02_linear.i [2021-10-29 03:54:06,563 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9c44d-fcae-4082-b68f-541111f84989/bin/ukojak-Rh5K9KB4LI/data/caa3a2134/21a3bc9b811f490f826705037e9abc0a/FLAGa376e0fa4 [2021-10-29 03:54:06,958 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9c44d-fcae-4082-b68f-541111f84989/bin/ukojak-Rh5K9KB4LI/data/caa3a2134/21a3bc9b811f490f826705037e9abc0a [2021-10-29 03:54:06,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:54:06,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:54:06,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:54:06,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:54:06,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:54:06,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:54:06" (1/1) ... [2021-10-29 03:54:06,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56805dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:06, skipping insertion in model container [2021-10-29 03:54:06,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:54:06" (1/1) ... [2021-10-29 03:54:06,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:54:07,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:54:07,135 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9c44d-fcae-4082-b68f-541111f84989/sv-benchmarks/c/loop-zilu/benchmark02_linear.i[868,881] [2021-10-29 03:54:07,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:54:07,177 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:54:07,186 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9c44d-fcae-4082-b68f-541111f84989/sv-benchmarks/c/loop-zilu/benchmark02_linear.i[868,881] [2021-10-29 03:54:07,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:54:07,201 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:54:07,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:07 WrapperNode [2021-10-29 03:54:07,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:54:07,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:54:07,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:54:07,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:54:07,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:07" (1/1) ... [2021-10-29 03:54:07,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:07" (1/1) ... [2021-10-29 03:54:07,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:54:07,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:54:07,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:54:07,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:54:07,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:07" (1/1) ... [2021-10-29 03:54:07,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:07" (1/1) ... [2021-10-29 03:54:07,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:07" (1/1) ... [2021-10-29 03:54:07,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:07" (1/1) ... [2021-10-29 03:54:07,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:07" (1/1) ... [2021-10-29 03:54:07,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:07" (1/1) ... [2021-10-29 03:54:07,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:07" (1/1) ... [2021-10-29 03:54:07,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:54:07,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:54:07,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:54:07,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:54:07,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:07" (1/1) ... [2021-10-29 03:54:07,264 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:54:07,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9c44d-fcae-4082-b68f-541111f84989/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:54:07,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9c44d-fcae-4082-b68f-541111f84989/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:54:07,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9c44d-fcae-4082-b68f-541111f84989/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:54:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 03:54:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:54:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:54:07,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:54:07,602 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:54:07,602 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-29 03:54:07,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:54:07 BoogieIcfgContainer [2021-10-29 03:54:07,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:54:07,605 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:54:07,605 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:54:07,634 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:54:07,635 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:54:07" (1/1) ... [2021-10-29 03:54:07,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:54:07,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:54:07,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2021-10-29 03:54:07,699 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-10-29 03:54:07,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 03:54:07,701 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:54:07,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:54:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:54:07,848 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 03:54:07,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:54:07,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2021-10-29 03:54:07,892 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2021-10-29 03:54:07,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:54:07,892 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:54:07,893 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:54:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:54:07,963 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 03:54:08,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:54:08,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 14 states and 21 transitions. [2021-10-29 03:54:08,230 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 21 transitions. [2021-10-29 03:54:08,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 03:54:08,239 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:54:08,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:54:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:54:08,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 03:54:08,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:54:08,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2021-10-29 03:54:08,482 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2021-10-29 03:54:08,483 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 03:54:08,483 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2021-10-29 03:54:08,489 INFO L759 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2021-10-29 03:54:08,517 INFO L565 CodeCheckObserver]: Invariant with dag size 7 [2021-10-29 03:54:08,527 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 03:54:08,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:54:08 ImpRootNode [2021-10-29 03:54:08,528 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:54:08,529 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:54:08,529 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:54:08,530 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:54:08,530 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:54:07" (3/4) ... [2021-10-29 03:54:08,543 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 03:54:08,561 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-29 03:54:08,562 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-29 03:54:08,562 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 03:54:08,563 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 03:54:08,614 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9c44d-fcae-4082-b68f-541111f84989/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:54:08,616 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:54:08,618 INFO L168 Benchmark]: Toolchain (without parser) took 1654.64 ms. Allocated memory is still 113.2 MB. Free memory was 76.5 MB in the beginning and 86.7 MB in the end (delta: -10.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:54:08,619 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 113.2 MB. Free memory was 92.4 MB in the beginning and 92.4 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:54:08,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.30 ms. Allocated memory is still 113.2 MB. Free memory was 76.4 MB in the beginning and 89.2 MB in the end (delta: -12.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:54:08,621 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.26 ms. Allocated memory is still 113.2 MB. Free memory was 89.2 MB in the beginning and 87.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:54:08,622 INFO L168 Benchmark]: Boogie Preprocessor took 19.21 ms. Allocated memory is still 113.2 MB. Free memory was 87.8 MB in the beginning and 86.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:54:08,622 INFO L168 Benchmark]: RCFGBuilder took 348.64 ms. Allocated memory is still 113.2 MB. Free memory was 86.7 MB in the beginning and 75.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 03:54:08,623 INFO L168 Benchmark]: CodeCheck took 923.28 ms. Allocated memory is still 113.2 MB. Free memory was 75.6 MB in the beginning and 89.1 MB in the end (delta: -13.5 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. [2021-10-29 03:54:08,624 INFO L168 Benchmark]: Witness Printer took 86.85 ms. Allocated memory is still 113.2 MB. Free memory was 89.1 MB in the beginning and 86.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:54:08,633 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, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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: 16 SDtfs, 24 SDslu, 16 SDs, 0 SdLazy, 168 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 111 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 1/2 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 <= i && n <= 2147483647 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 113.2 MB. Free memory was 92.4 MB in the beginning and 92.4 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 226.30 ms. Allocated memory is still 113.2 MB. Free memory was 76.4 MB in the beginning and 89.2 MB in the end (delta: -12.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.26 ms. Allocated memory is still 113.2 MB. Free memory was 89.2 MB in the beginning and 87.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.21 ms. Allocated memory is still 113.2 MB. Free memory was 87.8 MB in the beginning and 86.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 348.64 ms. Allocated memory is still 113.2 MB. Free memory was 86.7 MB in the beginning and 75.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 923.28 ms. Allocated memory is still 113.2 MB. Free memory was 75.6 MB in the beginning and 89.1 MB in the end (delta: -13.5 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. * Witness Printer took 86.85 ms. Allocated memory is still 113.2 MB. Free memory was 89.1 MB in the beginning and 86.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-29 03:54:08,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef9c44d-fcae-4082-b68f-541111f84989/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...