./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem16_label18.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_bed6831a-aeb7-463b-86a4-07621b5e6c66/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bed6831a-aeb7-463b-86a4-07621b5e6c66/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_bed6831a-aeb7-463b-86a4-07621b5e6c66/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bed6831a-aeb7-463b-86a4-07621b5e6c66/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem16_label18.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bed6831a-aeb7-463b-86a4-07621b5e6c66/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_bed6831a-aeb7-463b-86a4-07621b5e6c66/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 6ef9f02eeb8480c92d0c249f15386b1338daf60e359031b970c1be1640c041cb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:30:52,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:30:52,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:30:52,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:30:52,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:30:52,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:30:52,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:30:52,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:30:52,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:30:52,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:30:52,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:30:52,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:30:52,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:30:52,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:30:52,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:30:52,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:30:52,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:30:52,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:30:52,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:30:52,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:30:52,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:30:52,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:30:52,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:30:52,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:30:52,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:30:52,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:30:52,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:30:52,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:30:52,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:30:52,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:30:52,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:30:52,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:30:52,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:30:52,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:30:52,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:30:52,520 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:30:52,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:30:52,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:30:52,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:30:52,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:30:52,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:30:52,524 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bed6831a-aeb7-463b-86a4-07621b5e6c66/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:30:52,547 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:30:52,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:30:52,548 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:30:52,549 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:30:52,549 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:30:52,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:30:52,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:30:52,550 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:30:52,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:30:52,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:30:52,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:30:52,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:30:52,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:30:52,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:30:52,552 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:30:52,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:30:52,552 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:30:52,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:30:52,553 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:30:52,553 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:30:52,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:30:52,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:30:52,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:30:52,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:30:52,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:30:52,554 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:30:52,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:30:52,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:30:52,555 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_bed6831a-aeb7-463b-86a4-07621b5e6c66/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bed6831a-aeb7-463b-86a4-07621b5e6c66/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ef9f02eeb8480c92d0c249f15386b1338daf60e359031b970c1be1640c041cb [2021-11-23 00:30:52,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:30:52,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:30:52,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:30:52,856 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:30:52,857 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:30:52,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bed6831a-aeb7-463b-86a4-07621b5e6c66/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/eca-rers2012/Problem16_label18.c [2021-11-23 00:30:52,936 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bed6831a-aeb7-463b-86a4-07621b5e6c66/bin/ukojak-LBtLqBUTdQ/data/8fa0eb545/7e4e11fef9e845d89cda8e87a8fdb4a3/FLAG44c69c28a [2021-11-23 00:30:53,603 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:30:53,603 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bed6831a-aeb7-463b-86a4-07621b5e6c66/sv-benchmarks/c/eca-rers2012/Problem16_label18.c [2021-11-23 00:30:53,624 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bed6831a-aeb7-463b-86a4-07621b5e6c66/bin/ukojak-LBtLqBUTdQ/data/8fa0eb545/7e4e11fef9e845d89cda8e87a8fdb4a3/FLAG44c69c28a [2021-11-23 00:30:53,778 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bed6831a-aeb7-463b-86a4-07621b5e6c66/bin/ukojak-LBtLqBUTdQ/data/8fa0eb545/7e4e11fef9e845d89cda8e87a8fdb4a3 [2021-11-23 00:30:53,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:30:53,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:30:53,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:30:53,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:30:53,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:30:53,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:30:53" (1/1) ... [2021-11-23 00:30:53,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cac275f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:53, skipping insertion in model container [2021-11-23 00:30:53,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:30:53" (1/1) ... [2021-11-23 00:30:53,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:30:53,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:30:54,155 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_bed6831a-aeb7-463b-86a4-07621b5e6c66/sv-benchmarks/c/eca-rers2012/Problem16_label18.c[1111,1124] [2021-11-23 00:30:54,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:30:54,696 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:30:54,713 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_bed6831a-aeb7-463b-86a4-07621b5e6c66/sv-benchmarks/c/eca-rers2012/Problem16_label18.c[1111,1124] [2021-11-23 00:30:55,045 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:30:55,064 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:30:55,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:55 WrapperNode [2021-11-23 00:30:55,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:30:55,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:30:55,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:30:55,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:30:55,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:55" (1/1) ... [2021-11-23 00:30:55,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:55" (1/1) ... [2021-11-23 00:30:55,270 INFO L137 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1768 [2021-11-23 00:30:55,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:30:55,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:30:55,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:30:55,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:30:55,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:55" (1/1) ... [2021-11-23 00:30:55,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:55" (1/1) ... [2021-11-23 00:30:55,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:55" (1/1) ... [2021-11-23 00:30:55,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:55" (1/1) ... [2021-11-23 00:30:55,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:55" (1/1) ... [2021-11-23 00:30:55,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:55" (1/1) ... [2021-11-23 00:30:55,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:55" (1/1) ... [2021-11-23 00:30:55,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:30:55,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:30:55,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:30:55,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:30:55,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:55" (1/1) ... [2021-11-23 00:30:55,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:30:55,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bed6831a-aeb7-463b-86a4-07621b5e6c66/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:30:55,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bed6831a-aeb7-463b-86a4-07621b5e6c66/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:30:55,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bed6831a-aeb7-463b-86a4-07621b5e6c66/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:30:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:30:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:30:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:30:55,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:30:55,641 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:30:55,642 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:30:58,003 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:31:09,634 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:31:09,634 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:31:09,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:31:09 BoogieIcfgContainer [2021-11-23 00:31:09,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:31:09,639 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:31:09,639 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:31:09,650 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:31:09,650 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:31:09" (1/1) ... [2021-11-23 00:31:09,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:31:09,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:31:09,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-11-23 00:31:09,732 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-23 00:31:09,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 00:31:09,735 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:31:09,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:31:09,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:31:09,931 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 00:31:10,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:31:10,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2021-11-23 00:31:10,139 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-23 00:31:10,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:31:10,139 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:31:10,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:31:10,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:31:11,057 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 00:31:12,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:31:12,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2021-11-23 00:31:12,157 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2021-11-23 00:31:12,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 00:31:12,160 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:31:12,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:31:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:31:15,077 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:31:16,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:31:16,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 44 transitions. [2021-11-23 00:31:16,022 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 44 transitions. [2021-11-23 00:31:16,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 00:31:16,023 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:31:16,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:31:17,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:31:18,023 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:31:18,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:31:18,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 30 states and 48 transitions. [2021-11-23 00:31:18,375 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 48 transitions. [2021-11-23 00:31:18,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 00:31:18,376 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:31:18,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:31:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:31:22,144 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:31:24,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:31:24,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 41 states and 76 transitions. [2021-11-23 00:31:24,409 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 76 transitions. [2021-11-23 00:31:24,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 00:31:24,410 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:31:24,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:31:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:31:27,319 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:31:28,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:31:28,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 47 states and 86 transitions. [2021-11-23 00:31:28,047 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 86 transitions. [2021-11-23 00:31:28,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 00:31:28,048 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:31:28,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:31:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:31:33,001 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:31:35,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:31:35,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 56 states and 108 transitions. [2021-11-23 00:31:35,381 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 108 transitions. [2021-11-23 00:31:35,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 00:31:35,382 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:31:35,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:31:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:31:39,901 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:31:40,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:31:40,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 59 states and 114 transitions. [2021-11-23 00:31:40,484 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 114 transitions. [2021-11-23 00:31:40,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 00:31:40,486 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:31:40,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:31:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:31:47,555 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:31:50,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:31:50,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 68 states and 140 transitions. [2021-11-23 00:31:50,184 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 140 transitions. [2021-11-23 00:31:50,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 00:31:50,185 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:31:50,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:31:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:31:55,588 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:31:56,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:31:56,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 72 states and 149 transitions. [2021-11-23 00:31:56,215 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 149 transitions. [2021-11-23 00:31:56,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 00:31:56,217 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:31:56,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:31:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:01,028 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:02,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:02,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 79 states and 167 transitions. [2021-11-23 00:32:02,541 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 167 transitions. [2021-11-23 00:32:02,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 00:32:02,543 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:02,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat