./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem101_label22.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_21e35410-d034-46c6-b976-d79fcae97c74/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e35410-d034-46c6-b976-d79fcae97c74/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_21e35410-d034-46c6-b976-d79fcae97c74/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e35410-d034-46c6-b976-d79fcae97c74/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem101_label22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e35410-d034-46c6-b976-d79fcae97c74/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_21e35410-d034-46c6-b976-d79fcae97c74/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 ca399da5b4a23af58a4832e6e16185f9d21852755b27c97f0de04b20d5d51ce5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:51:17,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:51:17,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:51:17,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:51:17,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:51:17,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:51:17,566 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:51:17,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:51:17,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:51:17,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:51:17,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:51:17,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:51:17,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:51:17,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:51:17,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:51:17,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:51:17,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:51:17,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:51:17,599 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:51:17,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:51:17,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:51:17,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:51:17,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:51:17,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:51:17,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:51:17,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:51:17,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:51:17,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:51:17,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:51:17,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:51:17,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:51:17,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:51:17,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:51:17,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:51:17,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:51:17,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:51:17,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:51:17,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:51:17,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:51:17,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:51:17,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:51:17,640 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e35410-d034-46c6-b976-d79fcae97c74/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:51:17,683 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:51:17,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:51:17,685 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:51:17,685 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:51:17,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:51:17,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:51:17,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:51:17,686 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:51:17,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:51:17,687 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:51:17,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:51:17,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:51:17,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:51:17,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:51:17,689 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:51:17,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:51:17,689 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:51:17,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:51:17,689 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:51:17,690 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:51:17,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:51:17,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:51:17,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:51:17,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:51:17,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:51:17,691 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:51:17,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:51:17,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:51:17,691 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_21e35410-d034-46c6-b976-d79fcae97c74/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e35410-d034-46c6-b976-d79fcae97c74/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca399da5b4a23af58a4832e6e16185f9d21852755b27c97f0de04b20d5d51ce5 [2021-11-23 00:51:17,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:51:17,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:51:17,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:51:17,996 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:51:17,997 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:51:17,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e35410-d034-46c6-b976-d79fcae97c74/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/eca-programs/Problem101_label22.c [2021-11-23 00:51:18,061 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e35410-d034-46c6-b976-d79fcae97c74/bin/ukojak-LBtLqBUTdQ/data/44b7756e6/561bb50cf75846f19c8ec3d07d466a4a/FLAG36e7e49ef [2021-11-23 00:51:20,835 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:51:20,836 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e35410-d034-46c6-b976-d79fcae97c74/sv-benchmarks/c/eca-programs/Problem101_label22.c [2021-11-23 00:51:20,994 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e35410-d034-46c6-b976-d79fcae97c74/bin/ukojak-LBtLqBUTdQ/data/44b7756e6/561bb50cf75846f19c8ec3d07d466a4a/FLAG36e7e49ef [2021-11-23 00:51:21,462 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e35410-d034-46c6-b976-d79fcae97c74/bin/ukojak-LBtLqBUTdQ/data/44b7756e6/561bb50cf75846f19c8ec3d07d466a4a [2021-11-23 00:51:21,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:51:21,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:51:21,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:51:21,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:51:21,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:51:21,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:51:21" (1/1) ... [2021-11-23 00:51:21,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45518192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:21, skipping insertion in model container [2021-11-23 00:51:21,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:51:21" (1/1) ... [2021-11-23 00:51:21,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:51:22,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:51:34,515 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_21e35410-d034-46c6-b976-d79fcae97c74/sv-benchmarks/c/eca-programs/Problem101_label22.c[2766967,2766980] [2021-11-23 00:51:34,601 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:51:34,610 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:51:42,183 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_21e35410-d034-46c6-b976-d79fcae97c74/sv-benchmarks/c/eca-programs/Problem101_label22.c[2766967,2766980] [2021-11-23 00:51:42,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:51:43,469 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:51:43,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:43 WrapperNode [2021-11-23 00:51:43,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:51:43,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:51:43,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:51:43,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:51:43,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:43" (1/1) ... [2021-11-23 00:51:44,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:43" (1/1) ... [2021-11-23 00:51:46,630 INFO L137 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83780 [2021-11-23 00:51:46,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:51:46,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:51:46,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:51:46,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:51:46,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:43" (1/1) ... [2021-11-23 00:51:46,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:43" (1/1) ... [2021-11-23 00:51:47,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:43" (1/1) ... [2021-11-23 00:51:47,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:43" (1/1) ... [2021-11-23 00:51:48,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:43" (1/1) ... [2021-11-23 00:51:48,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:43" (1/1) ... [2021-11-23 00:51:49,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:43" (1/1) ... [2021-11-23 00:51:49,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:51:49,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:51:49,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:51:49,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:51:49,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:43" (1/1) ... [2021-11-23 00:51:49,640 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:51:49,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e35410-d034-46c6-b976-d79fcae97c74/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:51:49,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e35410-d034-46c6-b976-d79fcae97c74/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:51:49,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e35410-d034-46c6-b976-d79fcae97c74/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:51:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:51:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:51:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:51:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:51:49,858 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:51:49,860 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:52:26,856 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:52:28,185 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:52:28,185 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:52:28,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:52:28 BoogieIcfgContainer [2021-11-23 00:52:28,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:52:28,199 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:52:28,199 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:52:28,207 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:52:28,208 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:52:28" (1/1) ... [2021-11-23 00:52:28,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:52:28,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:52:28,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20217 states to 10135 states and 20217 transitions. [2021-11-23 00:52:28,455 INFO L276 IsEmpty]: Start isEmpty. Operand 10135 states and 20217 transitions. [2021-11-23 00:52:29,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10086 [2021-11-23 00:52:29,166 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:52:29,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:52:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:52:57,142 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 00:53:37,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:37,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35394 states to 20218 states and 35394 transitions. [2021-11-23 00:53:37,652 INFO L276 IsEmpty]: Start isEmpty. Operand 20218 states and 35394 transitions. [2021-11-23 00:53:38,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10090 [2021-11-23 00:53:38,342 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:38,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat