./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label52.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label52.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0085780b6a5384f0bbe6d5f11dabc3e1229a09ebe51547a1a74560868441797c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:48:23,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:48:23,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:48:23,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:48:23,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:48:23,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:48:23,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:48:23,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:48:23,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:48:23,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:48:23,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:48:23,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:48:23,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:48:23,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:48:23,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:48:23,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:48:23,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:48:23,339 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:48:23,341 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:48:23,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:48:23,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:48:23,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:48:23,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:48:23,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:48:23,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:48:23,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:48:23,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:48:23,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:48:23,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:48:23,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:48:23,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:48:23,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:48:23,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:48:23,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:48:23,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:48:23,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:48:23,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:48:23,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:48:23,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:48:23,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:48:23,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:48:23,383 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:48:23,424 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:48:23,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:48:23,426 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:48:23,426 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:48:23,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:48:23,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:48:23,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:48:23,428 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:48:23,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:48:23,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:48:23,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:48:23,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:48:23,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:48:23,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:48:23,437 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:48:23,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:48:23,438 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:48:23,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:48:23,438 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:48:23,438 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:48:23,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:48:23,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:48:23,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:48:23,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:48:23,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:48:23,440 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:48:23,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:48:23,440 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:48:23,441 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_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0085780b6a5384f0bbe6d5f11dabc3e1229a09ebe51547a1a74560868441797c [2021-11-23 01:48:23,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:48:23,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:48:23,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:48:23,785 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:48:23,787 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:48:23,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/eca-rers2012/Problem10_label52.c [2021-11-23 01:48:23,863 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/bin/ukojak-LBtLqBUTdQ/data/97cfcd9db/3ec71adac92b4965a06a5b37c9da8dda/FLAGd2375ecf4 [2021-11-23 01:48:24,461 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:48:24,462 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/sv-benchmarks/c/eca-rers2012/Problem10_label52.c [2021-11-23 01:48:24,485 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/bin/ukojak-LBtLqBUTdQ/data/97cfcd9db/3ec71adac92b4965a06a5b37c9da8dda/FLAGd2375ecf4 [2021-11-23 01:48:24,726 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/bin/ukojak-LBtLqBUTdQ/data/97cfcd9db/3ec71adac92b4965a06a5b37c9da8dda [2021-11-23 01:48:24,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:48:24,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:48:24,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:48:24,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:48:24,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:48:24,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:48:24" (1/1) ... [2021-11-23 01:48:24,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d34eb0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:24, skipping insertion in model container [2021-11-23 01:48:24,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:48:24" (1/1) ... [2021-11-23 01:48:24,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:48:24,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:48:25,010 WARN L230 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_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/sv-benchmarks/c/eca-rers2012/Problem10_label52.c[4790,4803] [2021-11-23 01:48:25,203 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:48:25,212 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:48:25,257 WARN L230 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_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/sv-benchmarks/c/eca-rers2012/Problem10_label52.c[4790,4803] [2021-11-23 01:48:25,345 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:48:25,364 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:48:25,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:25 WrapperNode [2021-11-23 01:48:25,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:48:25,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:48:25,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:48:25,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:48:25,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:25" (1/1) ... [2021-11-23 01:48:25,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:25" (1/1) ... [2021-11-23 01:48:25,488 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2021-11-23 01:48:25,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:48:25,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:48:25,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:48:25,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:48:25,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:25" (1/1) ... [2021-11-23 01:48:25,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:25" (1/1) ... [2021-11-23 01:48:25,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:25" (1/1) ... [2021-11-23 01:48:25,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:25" (1/1) ... [2021-11-23 01:48:25,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:25" (1/1) ... [2021-11-23 01:48:25,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:25" (1/1) ... [2021-11-23 01:48:25,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:25" (1/1) ... [2021-11-23 01:48:25,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:48:25,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:48:25,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:48:25,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:48:25,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:25" (1/1) ... [2021-11-23 01:48:25,598 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:48:25,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:48:25,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:48:25,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:48:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:48:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:48:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:48:25,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:48:25,733 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:48:25,734 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:48:26,996 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:48:28,853 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:48:28,854 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:48:28,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:48:28 BoogieIcfgContainer [2021-11-23 01:48:28,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:48:28,860 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:48:28,860 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:48:28,871 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:48:28,871 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:48:28" (1/1) ... [2021-11-23 01:48:28,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:48:28,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:48:28,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-11-23 01:48:28,975 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-23 01:48:28,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 01:48:28,977 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:48:28,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:48:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:48:29,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:48:29,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:48:29,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2021-11-23 01:48:29,279 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-23 01:48:29,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:48:29,280 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:48:29,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:48:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:48:29,938 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:48:30,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:48:30,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 28 transitions. [2021-11-23 01:48:30,443 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2021-11-23 01:48:30,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:48:30,445 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:48:30,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:48:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:48:31,049 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 01:48:31,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:48:31,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 26 states and 43 transitions. [2021-11-23 01:48:31,815 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 43 transitions. [2021-11-23 01:48:31,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:48:31,817 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:48:31,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:48:32,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:48:32,291 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 01:48:32,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:48:32,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 47 transitions. [2021-11-23 01:48:32,613 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2021-11-23 01:48:32,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:48:32,614 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:48:32,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:48:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:48:33,143 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 01:48:33,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:48:33,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 26 transitions. [2021-11-23 01:48:33,317 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2021-11-23 01:48:33,317 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:48:33,318 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2021-11-23 01:48:33,332 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 01:48:33,579 INFO L560 CodeCheckObserver]: Invariant with dag size 19 [2021-11-23 01:48:33,589 INFO L560 CodeCheckObserver]: Invariant with dag size 22 [2021-11-23 01:48:33,591 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:48:33,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:48:33 ImpRootNode [2021-11-23 01:48:33,592 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:48:33,592 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:48:33,592 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:48:33,593 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:48:33,593 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:48:28" (3/4) ... [2021-11-23 01:48:33,596 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:48:33,616 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 184 nodes and edges [2021-11-23 01:48:33,618 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-11-23 01:48:33,620 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-23 01:48:33,621 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:48:33,749 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:48:33,749 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:48:33,750 INFO L158 Benchmark]: Toolchain (without parser) took 9020.52ms. Allocated memory was 83.9MB in the beginning and 369.1MB in the end (delta: 285.2MB). Free memory was 46.8MB in the beginning and 267.8MB in the end (delta: -221.0MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2021-11-23 01:48:33,751 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory was 57.3MB in the beginning and 57.2MB in the end (delta: 26.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:48:33,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 634.73ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 46.6MB in the beginning and 59.7MB in the end (delta: -13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:48:33,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 121.55ms. Allocated memory is still 100.7MB. Free memory was 59.2MB in the beginning and 51.2MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:48:33,752 INFO L158 Benchmark]: Boogie Preprocessor took 95.32ms. Allocated memory is still 100.7MB. Free memory was 51.2MB in the beginning and 46.6MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 01:48:33,753 INFO L158 Benchmark]: RCFGBuilder took 3273.65ms. Allocated memory was 100.7MB in the beginning and 184.5MB in the end (delta: 83.9MB). Free memory was 46.6MB in the beginning and 86.8MB in the end (delta: -40.2MB). Peak memory consumption was 90.2MB. Max. memory is 16.1GB. [2021-11-23 01:48:33,753 INFO L158 Benchmark]: CodeCheck took 4731.45ms. Allocated memory was 184.5MB in the beginning and 369.1MB in the end (delta: 184.5MB). Free memory was 86.8MB in the beginning and 283.5MB in the end (delta: -196.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:48:33,754 INFO L158 Benchmark]: Witness Printer took 157.53ms. Allocated memory is still 369.1MB. Free memory was 283.5MB in the beginning and 267.8MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 01:48:33,756 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, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 6, 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, 139 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104 mSDsluCounter, 131 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 299 IncrementalHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 57 mSDtfsCounter, 299 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 520 GetRequests, 446 SyntacticMatches, 24 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 905 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 554 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 34/44 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: 137]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: (((a19 <= 7 || 9 <= a19) && 14 == a4) && a12 == 0) || ((14 == a4 && a12 == 0) && !(a10 == 3)) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((a1 + 13 <= 0 || !(a19 == 8)) || 38 < a1) || !(a10 == 3)) && 14 == a4) && a12 == 0 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory was 57.3MB in the beginning and 57.2MB in the end (delta: 26.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 634.73ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 46.6MB in the beginning and 59.7MB in the end (delta: -13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 121.55ms. Allocated memory is still 100.7MB. Free memory was 59.2MB in the beginning and 51.2MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.32ms. Allocated memory is still 100.7MB. Free memory was 51.2MB in the beginning and 46.6MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3273.65ms. Allocated memory was 100.7MB in the beginning and 184.5MB in the end (delta: 83.9MB). Free memory was 46.6MB in the beginning and 86.8MB in the end (delta: -40.2MB). Peak memory consumption was 90.2MB. Max. memory is 16.1GB. * CodeCheck took 4731.45ms. Allocated memory was 184.5MB in the beginning and 369.1MB in the end (delta: 184.5MB). Free memory was 86.8MB in the beginning and 283.5MB in the end (delta: -196.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 157.53ms. Allocated memory is still 369.1MB. Free memory was 283.5MB in the beginning and 267.8MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 01:48:33,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdc1535-8547-4101-a4d9-0e6fcf60d51a/bin/ukojak-LBtLqBUTdQ/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