./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b743be-fdee-4119-86fe-be322e624c04/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b743be-fdee-4119-86fe-be322e624c04/bin/ukojak-2xVlg8857e/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b743be-fdee-4119-86fe-be322e624c04/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b743be-fdee-4119-86fe-be322e624c04/bin/ukojak-2xVlg8857e/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b743be-fdee-4119-86fe-be322e624c04/bin/ukojak-2xVlg8857e/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b743be-fdee-4119-86fe-be322e624c04/bin/ukojak-2xVlg8857e --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a81d76a671fec08918102c7898e8919d02b265d05707efa1508363dab4714d44 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 22:47:31,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 22:47:31,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 22:47:31,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 22:47:31,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 22:47:31,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 22:47:31,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 22:47:31,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 22:47:31,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 22:47:31,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 22:47:31,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 22:47:31,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 22:47:31,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 22:47:31,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 22:47:31,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 22:47:31,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 22:47:31,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 22:47:31,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 22:47:31,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 22:47:31,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 22:47:31,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 22:47:31,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 22:47:31,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 22:47:31,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 22:47:31,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 22:47:31,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 22:47:31,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 22:47:31,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 22:47:31,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 22:47:31,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 22:47:31,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 22:47:31,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 22:47:31,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 22:47:31,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 22:47:31,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 22:47:31,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 22:47:31,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 22:47:31,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 22:47:31,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 22:47:31,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 22:47:31,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 22:47:31,473 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b743be-fdee-4119-86fe-be322e624c04/bin/ukojak-2xVlg8857e/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-13 22:47:31,521 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 22:47:31,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 22:47:31,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 22:47:31,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 22:47:31,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 22:47:31,525 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 22:47:31,525 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 22:47:31,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 22:47:31,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 22:47:31,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 22:47:31,527 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 22:47:31,527 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 22:47:31,528 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 22:47:31,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 22:47:31,528 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 22:47:31,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 22:47:31,529 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 22:47:31,529 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 22:47:31,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 22:47:31,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 22:47:31,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 22:47:31,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 22:47:31,530 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 22:47:31,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 22:47:31,530 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_08b743be-fdee-4119-86fe-be322e624c04/bin/ukojak-2xVlg8857e/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b743be-fdee-4119-86fe-be322e624c04/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a81d76a671fec08918102c7898e8919d02b265d05707efa1508363dab4714d44 [2021-11-13 22:47:31,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 22:47:31,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 22:47:31,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 22:47:31,876 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 22:47:31,877 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 22:47:31,879 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b743be-fdee-4119-86fe-be322e624c04/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i [2021-11-13 22:47:31,970 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b743be-fdee-4119-86fe-be322e624c04/bin/ukojak-2xVlg8857e/data/9a2f26b48/ee02169759694d76938e72302e0e449c/FLAG9365d3389 [2021-11-13 22:47:32,604 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 22:47:32,610 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b743be-fdee-4119-86fe-be322e624c04/sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i [2021-11-13 22:47:32,632 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b743be-fdee-4119-86fe-be322e624c04/bin/ukojak-2xVlg8857e/data/9a2f26b48/ee02169759694d76938e72302e0e449c/FLAG9365d3389 [2021-11-13 22:47:32,892 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b743be-fdee-4119-86fe-be322e624c04/bin/ukojak-2xVlg8857e/data/9a2f26b48/ee02169759694d76938e72302e0e449c [2021-11-13 22:47:32,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 22:47:32,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 22:47:32,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 22:47:32,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 22:47:32,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 22:47:32,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:47:32" (1/1) ... [2021-11-13 22:47:32,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66593731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:32, skipping insertion in model container [2021-11-13 22:47:32,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:47:32" (1/1) ... [2021-11-13 22:47:32,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 22:47:32,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 22:47:33,282 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b743be-fdee-4119-86fe-be322e624c04/sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i[24177,24190] [2021-11-13 22:47:33,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 22:47:33,293 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 22:47:33,337 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b743be-fdee-4119-86fe-be322e624c04/sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i[24177,24190] [2021-11-13 22:47:33,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 22:47:33,370 INFO L208 MainTranslator]: Completed translation [2021-11-13 22:47:33,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:33 WrapperNode [2021-11-13 22:47:33,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 22:47:33,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 22:47:33,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 22:47:33,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 22:47:33,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:33" (1/1) ... [2021-11-13 22:47:33,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:33" (1/1) ... [2021-11-13 22:47:33,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 22:47:33,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 22:47:33,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 22:47:33,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 22:47:33,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:33" (1/1) ... [2021-11-13 22:47:33,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:33" (1/1) ... [2021-11-13 22:47:33,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:33" (1/1) ... [2021-11-13 22:47:33,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:33" (1/1) ... [2021-11-13 22:47:33,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:33" (1/1) ... [2021-11-13 22:47:33,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:33" (1/1) ... [2021-11-13 22:47:33,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:33" (1/1) ... [2021-11-13 22:47:33,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 22:47:33,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 22:47:33,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 22:47:33,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 22:47:33,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:33" (1/1) ... [2021-11-13 22:47:33,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 22:47:33,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b743be-fdee-4119-86fe-be322e624c04/bin/ukojak-2xVlg8857e/z3 [2021-11-13 22:47:33,494 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b743be-fdee-4119-86fe-be322e624c04/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 22:47:33,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b743be-fdee-4119-86fe-be322e624c04/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 22:47:33,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 22:47:33,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 22:47:33,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 22:47:33,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 22:47:33,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 22:47:33,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 22:47:33,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 22:47:33,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 22:47:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 22:47:33,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 22:47:34,212 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 22:47:34,212 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-13 22:47:34,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:47:34 BoogieIcfgContainer [2021-11-13 22:47:34,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 22:47:34,216 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 22:47:34,217 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 22:47:34,227 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 22:47:34,227 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:47:34" (1/1) ... [2021-11-13 22:47:34,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 22:47:34,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:34,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 92 states and 98 transitions. [2021-11-13 22:47:34,337 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 98 transitions. [2021-11-13 22:47:34,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-13 22:47:34,339 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:34,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:34,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:34,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:34,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 91 states and 97 transitions. [2021-11-13 22:47:34,636 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 97 transitions. [2021-11-13 22:47:34,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-13 22:47:34,636 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:34,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:34,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:34,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:34,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 90 states and 96 transitions. [2021-11-13 22:47:34,833 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions. [2021-11-13 22:47:34,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 22:47:34,833 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:34,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:34,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:34,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:34,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 89 states and 95 transitions. [2021-11-13 22:47:34,888 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 95 transitions. [2021-11-13 22:47:34,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 22:47:34,888 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:34,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:34,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:34,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:34,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:34,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 88 states and 94 transitions. [2021-11-13 22:47:34,948 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 94 transitions. [2021-11-13 22:47:34,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 22:47:34,948 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:34,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:34,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:35,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:35,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 87 states and 93 transitions. [2021-11-13 22:47:35,013 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2021-11-13 22:47:35,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 22:47:35,013 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:35,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:35,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:35,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:35,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 86 states and 92 transitions. [2021-11-13 22:47:35,123 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 92 transitions. [2021-11-13 22:47:35,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 22:47:35,124 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:35,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:35,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:35,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 87 states and 93 transitions. [2021-11-13 22:47:35,367 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2021-11-13 22:47:35,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 22:47:35,368 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:35,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:35,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:35,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:35,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 86 states and 92 transitions. [2021-11-13 22:47:35,442 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 92 transitions. [2021-11-13 22:47:35,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 22:47:35,442 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:35,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:35,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:35,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:35,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 85 states and 91 transitions. [2021-11-13 22:47:35,522 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2021-11-13 22:47:35,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 22:47:35,522 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:35,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:35,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:35,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:35,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 84 states and 90 transitions. [2021-11-13 22:47:35,567 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 90 transitions. [2021-11-13 22:47:35,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 22:47:35,568 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:35,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:35,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:35,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:35,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 83 states and 89 transitions. [2021-11-13 22:47:35,651 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2021-11-13 22:47:35,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 22:47:35,652 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:35,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:35,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:35,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:35,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 82 states and 88 transitions. [2021-11-13 22:47:35,719 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2021-11-13 22:47:35,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 22:47:35,720 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:35,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:35,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:35,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:35,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 81 states and 87 transitions. [2021-11-13 22:47:35,778 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 87 transitions. [2021-11-13 22:47:35,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 22:47:35,779 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:35,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:35,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:35,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:35,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 80 states and 86 transitions. [2021-11-13 22:47:35,862 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 86 transitions. [2021-11-13 22:47:35,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 22:47:35,863 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:35,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:35,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:36,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:36,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 79 states and 85 transitions. [2021-11-13 22:47:36,083 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2021-11-13 22:47:36,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-13 22:47:36,084 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:36,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:36,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:36,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:36,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:36,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 87 states and 97 transitions. [2021-11-13 22:47:36,683 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 97 transitions. [2021-11-13 22:47:36,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-13 22:47:36,683 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:36,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:36,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:37,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:37,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 95 states and 109 transitions. [2021-11-13 22:47:37,526 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 109 transitions. [2021-11-13 22:47:37,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 22:47:37,529 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:37,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:37,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:38,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:38,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 101 states and 115 transitions. [2021-11-13 22:47:38,727 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2021-11-13 22:47:38,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 22:47:38,728 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:38,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:38,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:38,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:40,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:40,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 112 states and 138 transitions. [2021-11-13 22:47:40,395 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 138 transitions. [2021-11-13 22:47:40,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 22:47:40,396 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:40,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:40,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:43,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:43,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 123 states and 163 transitions. [2021-11-13 22:47:43,359 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 163 transitions. [2021-11-13 22:47:43,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-13 22:47:43,360 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:43,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:43,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:44,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:44,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 127 states and 173 transitions. [2021-11-13 22:47:44,683 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 173 transitions. [2021-11-13 22:47:44,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-13 22:47:44,684 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:44,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:44,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:46,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:46,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 131 states and 183 transitions. [2021-11-13 22:47:46,155 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 183 transitions. [2021-11-13 22:47:46,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 22:47:46,156 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:46,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:46,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:50,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:50,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 145 states and 214 transitions. [2021-11-13 22:47:50,582 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 214 transitions. [2021-11-13 22:47:50,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 22:47:50,583 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:50,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:51,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:47:56,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:47:56,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 159 states and 246 transitions. [2021-11-13 22:47:56,360 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 246 transitions. [2021-11-13 22:47:56,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 22:47:56,361 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:47:56,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:47:56,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:47:56,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:48:01,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:48:01,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 172 states and 276 transitions. [2021-11-13 22:48:01,998 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 276 transitions. [2021-11-13 22:48:01,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 22:48:01,999 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:48:02,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:48:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:48:02,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:48:03,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:48:03,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 175 states and 282 transitions. [2021-11-13 22:48:03,768 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 282 transitions. [2021-11-13 22:48:03,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 22:48:03,769 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:48:03,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:48:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:48:04,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:48:06,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:48:06,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 178 states and 288 transitions. [2021-11-13 22:48:06,353 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 288 transitions. [2021-11-13 22:48:06,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-13 22:48:06,354 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:48:06,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:48:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:48:06,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:48:06,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:48:06,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 179 states and 290 transitions. [2021-11-13 22:48:06,972 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 290 transitions. [2021-11-13 22:48:06,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-13 22:48:06,973 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:48:06,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:48:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:48:07,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:48:09,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:48:09,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 181 states and 294 transitions. [2021-11-13 22:48:09,089 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 294 transitions. [2021-11-13 22:48:09,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-13 22:48:09,090 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:48:09,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:48:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:48:10,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:48:18,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:48:18,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 191 states and 318 transitions. [2021-11-13 22:48:18,135 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 318 transitions. [2021-11-13 22:48:18,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-13 22:48:18,136 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:48:18,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:48:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:48:19,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:48:24,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:48:24,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 197 states and 329 transitions. [2021-11-13 22:48:24,983 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 329 transitions. [2021-11-13 22:48:24,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-13 22:48:24,984 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:48:24,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:48:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:48:25,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:48:25,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:48:25,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 198 states and 332 transitions. [2021-11-13 22:48:25,668 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 332 transitions. [2021-11-13 22:48:25,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-13 22:48:25,670 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:48:25,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:48:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:48:25,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:48:26,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:48:26,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 200 states and 337 transitions. [2021-11-13 22:48:26,219 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 337 transitions. [2021-11-13 22:48:26,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 22:48:26,220 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:48:26,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:48:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:48:26,493 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:48:30,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:48:30,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 201 states and 340 transitions. [2021-11-13 22:48:30,258 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 340 transitions. [2021-11-13 22:48:30,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 22:48:30,259 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:48:30,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:48:30,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:48:31,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:48:33,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:48:33,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 202 states and 340 transitions. [2021-11-13 22:48:33,492 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 340 transitions. [2021-11-13 22:48:33,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 22:48:33,492 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:48:33,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:48:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:48:34,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:48:37,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:48:37,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 206 states and 348 transitions. [2021-11-13 22:48:37,295 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 348 transitions. [2021-11-13 22:48:37,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-13 22:48:37,295 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:48:37,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:48:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:48:37,546 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:48:43,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:48:43,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 105 states and 141 transitions. [2021-11-13 22:48:43,461 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 141 transitions. [2021-11-13 22:48:43,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-13 22:48:43,462 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:48:43,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:48:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:48:45,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:49:02,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:02,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 113 states and 155 transitions. [2021-11-13 22:49:02,861 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 155 transitions. [2021-11-13 22:49:02,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-13 22:49:02,861 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:02,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:02,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:04,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:49:20,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:20,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 121 states and 171 transitions. [2021-11-13 22:49:20,690 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 171 transitions. [2021-11-13 22:49:20,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-13 22:49:20,691 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:20,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:20,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:49:22,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:22,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 120 states and 170 transitions. [2021-11-13 22:49:22,787 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 170 transitions. [2021-11-13 22:49:22,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-13 22:49:22,787 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:22,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:23,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:49:30,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:30,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 126 states and 182 transitions. [2021-11-13 22:49:30,151 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 182 transitions. [2021-11-13 22:49:30,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 22:49:30,151 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:30,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:31,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:49:53,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:53,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 136 states and 202 transitions. [2021-11-13 22:49:53,479 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 202 transitions. [2021-11-13 22:49:53,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 22:49:53,479 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:53,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:53,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:49:58,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:58,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 141 states and 207 transitions. [2021-11-13 22:49:58,626 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 207 transitions. [2021-11-13 22:49:58,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 22:49:58,627 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:58,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:50:00,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:50:09,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:50:09,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 148 states and 223 transitions. [2021-11-13 22:50:09,439 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 223 transitions. [2021-11-13 22:50:09,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 22:50:09,439 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:50:09,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:50:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:50:09,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:50:13,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:50:13,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 152 states and 228 transitions. [2021-11-13 22:50:13,228 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 228 transitions. [2021-11-13 22:50:13,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-13 22:50:13,229 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:50:13,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:50:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:50:16,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:50:29,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:50:29,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 158 states and 237 transitions. [2021-11-13 22:50:29,704 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 237 transitions. [2021-11-13 22:50:29,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-13 22:50:29,704 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:50:29,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:50:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:50:30,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:50:44,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:50:44,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 166 states and 250 transitions. [2021-11-13 22:50:44,282 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 250 transitions. [2021-11-13 22:50:44,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-13 22:50:44,283 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:50:44,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:50:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:50:44,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:50:45,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:50:45,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 167 states and 252 transitions. [2021-11-13 22:50:45,592 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 252 transitions. [2021-11-13 22:50:45,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-13 22:50:45,592 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:50:45,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:50:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:50:45,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:50:46,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:50:46,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 169 states and 255 transitions. [2021-11-13 22:50:46,986 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 255 transitions. [2021-11-13 22:50:46,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-13 22:50:46,986 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:50:46,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:50:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:50:53,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:51:38,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:51:38,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 182 states and 278 transitions. [2021-11-13 22:51:38,576 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 278 transitions. [2021-11-13 22:51:38,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-13 22:51:38,577 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:51:38,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:51:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:51:45,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:52:33,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:52:33,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 195 states and 301 transitions. [2021-11-13 22:52:33,521 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 301 transitions. [2021-11-13 22:52:33,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-13 22:52:33,521 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:52:33,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:52:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:52:35,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:53:00,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:53:00,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 206 states and 329 transitions. [2021-11-13 22:53:00,948 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 329 transitions. [2021-11-13 22:53:00,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-13 22:53:00,948 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:53:00,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:53:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:53:01,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:53:03,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:53:03,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 208 states and 334 transitions. [2021-11-13 22:53:03,454 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 334 transitions. [2021-11-13 22:53:03,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-13 22:53:03,454 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:53:03,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:53:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:53:04,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:53:29,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:53:29,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 219 states and 360 transitions. [2021-11-13 22:53:29,730 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 360 transitions. [2021-11-13 22:53:29,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-13 22:53:29,731 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:53:29,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:53:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:53:29,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:53:31,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:53:31,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 220 states and 361 transitions. [2021-11-13 22:53:31,778 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 361 transitions. [2021-11-13 22:53:31,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-13 22:53:31,778 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:53:31,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:53:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:53:36,794 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:54:13,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:54:13,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 225 states and 369 transitions. [2021-11-13 22:54:13,957 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 369 transitions. [2021-11-13 22:54:13,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-13 22:54:13,958 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:54:13,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:54:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:54:14,750 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:54:35,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:54:35,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 234 states and 387 transitions. [2021-11-13 22:54:35,278 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 387 transitions. [2021-11-13 22:54:35,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-13 22:54:35,279 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:54:35,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:54:35,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:54:35,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:54:55,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:54:55,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 242 states and 402 transitions. [2021-11-13 22:54:55,628 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 402 transitions. [2021-11-13 22:54:55,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-13 22:54:55,629 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:54:55,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:54:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:54:56,093 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 22:55:15,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:55:15,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 250 states and 415 transitions. [2021-11-13 22:55:15,951 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 415 transitions. [2021-11-13 22:55:15,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-13 22:55:15,951 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:55:15,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:55:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:55:22,360 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:55:54,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:55:54,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 260 states and 437 transitions. [2021-11-13 22:55:54,244 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 437 transitions. [2021-11-13 22:55:54,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-13 22:55:54,244 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:55:54,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:55:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:55:54,514 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:55:59,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:55:59,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 262 states and 440 transitions. [2021-11-13 22:55:59,553 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 440 transitions. [2021-11-13 22:55:59,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-13 22:55:59,553 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:55:59,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:55:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:56:03,396 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:56:19,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:56:19,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 266 states and 454 transitions. [2021-11-13 22:56:19,694 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 454 transitions. [2021-11-13 22:56:19,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-13 22:56:19,694 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:56:19,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:56:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:56:20,532 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:56:25,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:56:25,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 268 states and 456 transitions. [2021-11-13 22:56:25,178 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 456 transitions. [2021-11-13 22:56:25,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-13 22:56:25,179 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:56:25,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:56:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:56:42,144 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:57:09,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:57:09,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 272 states and 472 transitions. [2021-11-13 22:57:09,996 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 472 transitions. [2021-11-13 22:57:09,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-13 22:57:09,996 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:57:09,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:57:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:57:27,243 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:58:05,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:58:05,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 279 states and 495 transitions. [2021-11-13 22:58:05,925 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 495 transitions. [2021-11-13 22:58:05,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-13 22:58:05,926 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:58:05,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:58:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:58:06,985 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:58:10,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:58:10,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 280 states and 499 transitions. [2021-11-13 22:58:10,148 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 499 transitions. [2021-11-13 22:58:10,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-13 22:58:10,149 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:58:10,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:58:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:58:27,034 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:58:43,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:58:43,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 283 states and 503 transitions. [2021-11-13 22:58:43,166 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 503 transitions. [2021-11-13 22:58:43,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-13 22:58:43,167 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:58:43,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:58:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:58:50,078 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.