./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Bangalore_v4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192de449-4dc1-4ee1-9814-5504867dca79/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192de449-4dc1-4ee1-9814-5504867dca79/bin/ukojak-2xVlg8857e/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192de449-4dc1-4ee1-9814-5504867dca79/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192de449-4dc1-4ee1-9814-5504867dca79/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Bangalore_v4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192de449-4dc1-4ee1-9814-5504867dca79/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192de449-4dc1-4ee1-9814-5504867dca79/bin/ukojak-2xVlg8857e --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 5cc55b361d4f01def0eda607149a19c4785fee68e7824d0210bdec8ce7b04371 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-14 00:01:39,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-14 00:01:39,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-14 00:01:39,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-14 00:01:39,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-14 00:01:39,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-14 00:01:39,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-14 00:01:39,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-14 00:01:39,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-14 00:01:39,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-14 00:01:39,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-14 00:01:39,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-14 00:01:39,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-14 00:01:39,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-14 00:01:39,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-14 00:01:39,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-14 00:01:39,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-14 00:01:39,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-14 00:01:39,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-14 00:01:39,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-14 00:01:39,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-14 00:01:39,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-14 00:01:39,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-14 00:01:39,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-14 00:01:39,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-14 00:01:39,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-14 00:01:39,351 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-14 00:01:39,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-14 00:01:39,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-14 00:01:39,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-14 00:01:39,355 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-14 00:01:39,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-14 00:01:39,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-14 00:01:39,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-14 00:01:39,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-14 00:01:39,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-14 00:01:39,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-14 00:01:39,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-14 00:01:39,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-14 00:01:39,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-14 00:01:39,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-14 00:01:39,364 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192de449-4dc1-4ee1-9814-5504867dca79/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-14 00:01:39,391 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-14 00:01:39,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-14 00:01:39,392 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-14 00:01:39,392 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-14 00:01:39,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-14 00:01:39,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-14 00:01:39,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-14 00:01:39,394 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-14 00:01:39,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-14 00:01:39,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-14 00:01:39,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-14 00:01:39,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-14 00:01:39,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-14 00:01:39,395 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-14 00:01:39,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-14 00:01:39,395 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-14 00:01:39,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-14 00:01:39,395 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-14 00:01:39,396 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-14 00:01:39,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-14 00:01:39,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-14 00:01:39,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-14 00:01:39,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-14 00:01:39,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-14 00:01:39,397 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-14 00:01:39,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-14 00:01:39,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-14 00:01:39,397 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_192de449-4dc1-4ee1-9814-5504867dca79/bin/ukojak-2xVlg8857e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192de449-4dc1-4ee1-9814-5504867dca79/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cc55b361d4f01def0eda607149a19c4785fee68e7824d0210bdec8ce7b04371 [2021-11-14 00:01:39,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-14 00:01:39,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-14 00:01:39,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-14 00:01:39,751 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-14 00:01:39,752 INFO L275 PluginConnector]: CDTParser initialized [2021-11-14 00:01:39,754 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192de449-4dc1-4ee1-9814-5504867dca79/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/termination-crafted/Bangalore_v4.c [2021-11-14 00:01:39,857 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192de449-4dc1-4ee1-9814-5504867dca79/bin/ukojak-2xVlg8857e/data/011fcec50/2400395fc8d7437ea4542fc7eabdbd8a/FLAGb52e1ac15 [2021-11-14 00:01:40,410 INFO L306 CDTParser]: Found 1 translation units. [2021-11-14 00:01:40,411 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192de449-4dc1-4ee1-9814-5504867dca79/sv-benchmarks/c/termination-crafted/Bangalore_v4.c [2021-11-14 00:01:40,421 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192de449-4dc1-4ee1-9814-5504867dca79/bin/ukojak-2xVlg8857e/data/011fcec50/2400395fc8d7437ea4542fc7eabdbd8a/FLAGb52e1ac15 [2021-11-14 00:01:40,789 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192de449-4dc1-4ee1-9814-5504867dca79/bin/ukojak-2xVlg8857e/data/011fcec50/2400395fc8d7437ea4542fc7eabdbd8a [2021-11-14 00:01:40,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-14 00:01:40,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-14 00:01:40,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-14 00:01:40,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-14 00:01:40,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-14 00:01:40,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 12:01:40" (1/1) ... [2021-11-14 00:01:40,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c686393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:40, skipping insertion in model container [2021-11-14 00:01:40,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 12:01:40" (1/1) ... [2021-11-14 00:01:40,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-14 00:01:40,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-14 00:01:40,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-14 00:01:40,976 INFO L203 MainTranslator]: Completed pre-run [2021-11-14 00:01:41,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-14 00:01:41,025 INFO L208 MainTranslator]: Completed translation [2021-11-14 00:01:41,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:41 WrapperNode [2021-11-14 00:01:41,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-14 00:01:41,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-14 00:01:41,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-14 00:01:41,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-14 00:01:41,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:41" (1/1) ... [2021-11-14 00:01:41,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:41" (1/1) ... [2021-11-14 00:01:41,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-14 00:01:41,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-14 00:01:41,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-14 00:01:41,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-14 00:01:41,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:41" (1/1) ... [2021-11-14 00:01:41,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:41" (1/1) ... [2021-11-14 00:01:41,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:41" (1/1) ... [2021-11-14 00:01:41,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:41" (1/1) ... [2021-11-14 00:01:41,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:41" (1/1) ... [2021-11-14 00:01:41,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:41" (1/1) ... [2021-11-14 00:01:41,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:41" (1/1) ... [2021-11-14 00:01:41,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-14 00:01:41,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-14 00:01:41,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-14 00:01:41,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-14 00:01:41,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:41" (1/1) ... [2021-11-14 00:01:41,090 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-14 00:01:41,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192de449-4dc1-4ee1-9814-5504867dca79/bin/ukojak-2xVlg8857e/z3 [2021-11-14 00:01:41,113 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192de449-4dc1-4ee1-9814-5504867dca79/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-14 00:01:41,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192de449-4dc1-4ee1-9814-5504867dca79/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-14 00:01:41,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-14 00:01:41,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-14 00:01:41,377 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-14 00:01:41,379 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-14 00:01:41,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 12:01:41 BoogieIcfgContainer [2021-11-14 00:01:41,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-14 00:01:41,385 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-14 00:01:41,386 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-14 00:01:41,397 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-14 00:01:41,397 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 12:01:41" (1/1) ... [2021-11-14 00:01:41,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 00:01:41,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-14 00:01:41,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2021-11-14 00:01:41,505 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-11-14 00:01:41,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-14 00:01:41,508 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-14 00:01:41,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 00:01:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 00:01:41,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 00:01:41,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-14 00:01:41,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2021-11-14 00:01:41,757 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2021-11-14 00:01:41,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-14 00:01:41,758 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-14 00:01:41,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 00:01:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 00:01:41,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 00:01:42,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-14 00:01:42,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 14 states and 22 transitions. [2021-11-14 00:01:42,041 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 22 transitions. [2021-11-14 00:01:42,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-14 00:01:42,042 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-14 00:01:42,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 00:01:42,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 00:01:42,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 00:01:42,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-14 00:01:42,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 15 states and 25 transitions. [2021-11-14 00:01:42,375 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 25 transitions. [2021-11-14 00:01:42,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-14 00:01:42,377 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-14 00:01:42,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 00:01:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 00:01:42,438 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 00:01:42,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-14 00:01:42,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2021-11-14 00:01:42,669 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2021-11-14 00:01:42,670 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-14 00:01:42,670 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2021-11-14 00:01:42,685 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2021-11-14 00:01:42,708 INFO L560 CodeCheckObserver]: Invariant with dag size 8 [2021-11-14 00:01:42,722 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-14 00:01:42,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.11 12:01:42 ImpRootNode [2021-11-14 00:01:42,723 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-14 00:01:42,724 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-14 00:01:42,724 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-14 00:01:42,724 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-14 00:01:42,725 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 12:01:41" (3/4) ... [2021-11-14 00:01:42,728 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-14 00:01:42,739 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-14 00:01:42,739 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-14 00:01:42,739 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-14 00:01:42,771 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192de449-4dc1-4ee1-9814-5504867dca79/bin/ukojak-2xVlg8857e/witness.graphml [2021-11-14 00:01:42,771 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-14 00:01:42,772 INFO L158 Benchmark]: Toolchain (without parser) took 1978.03ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 72.6MB in the beginning and 97.7MB in the end (delta: -25.2MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2021-11-14 00:01:42,773 INFO L158 Benchmark]: CDTParser took 1.50ms. Allocated memory is still 100.7MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-14 00:01:42,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.27ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 72.3MB in the beginning and 108.2MB in the end (delta: -35.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-14 00:01:42,774 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.15ms. Allocated memory is still 130.0MB. Free memory was 107.9MB in the beginning and 106.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-14 00:01:42,775 INFO L158 Benchmark]: Boogie Preprocessor took 22.00ms. Allocated memory is still 130.0MB. Free memory was 106.9MB in the beginning and 105.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-14 00:01:42,776 INFO L158 Benchmark]: RCFGBuilder took 303.82ms. Allocated memory is still 130.0MB. Free memory was 105.9MB in the beginning and 97.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-14 00:01:42,776 INFO L158 Benchmark]: CodeCheck took 1338.42ms. Allocated memory is still 130.0MB. Free memory was 96.9MB in the beginning and 99.8MB in the end (delta: -2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-14 00:01:42,777 INFO L158 Benchmark]: Witness Printer took 47.98ms. Allocated memory is still 130.0MB. Free memory was 99.8MB in the beginning and 97.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-14 00:01:42,780 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: 1.2s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 347.09ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 296.50ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 172 IncrementalHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 8 mSDtfsCounter, 172 mSolverCounterSat, 11.45ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 179 SyntacticMatches, 8 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/5 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: x + 1 <= y && y <= 2147483647 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50ms. Allocated memory is still 100.7MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.27ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 72.3MB in the beginning and 108.2MB in the end (delta: -35.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.15ms. Allocated memory is still 130.0MB. Free memory was 107.9MB in the beginning and 106.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.00ms. Allocated memory is still 130.0MB. Free memory was 106.9MB in the beginning and 105.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 303.82ms. Allocated memory is still 130.0MB. Free memory was 105.9MB in the beginning and 97.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1338.42ms. Allocated memory is still 130.0MB. Free memory was 96.9MB in the beginning and 99.8MB in the end (delta: -2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 47.98ms. Allocated memory is still 130.0MB. Free memory was 99.8MB in the beginning and 97.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-14 00:01:42,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192de449-4dc1-4ee1-9814-5504867dca79/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE