./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem16_label15.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_7677b481-8d3b-4304-89db-ec2afe86adc1/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7677b481-8d3b-4304-89db-ec2afe86adc1/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_7677b481-8d3b-4304-89db-ec2afe86adc1/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7677b481-8d3b-4304-89db-ec2afe86adc1/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem16_label15.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7677b481-8d3b-4304-89db-ec2afe86adc1/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_7677b481-8d3b-4304-89db-ec2afe86adc1/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 04841d1aba9375b8a6b06dc8afee8df1fa6191c086b63f3a4a476e022f53e582 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:50:35,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:50:35,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:50:35,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:50:35,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:50:35,425 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:50:35,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:50:35,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:50:35,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:50:35,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:50:35,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:50:35,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:50:35,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:50:35,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:50:35,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:50:35,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:50:35,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:50:35,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:50:35,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:50:35,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:50:35,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:50:35,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:50:35,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:50:35,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:50:35,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:50:35,485 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:50:35,485 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:50:35,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:50:35,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:50:35,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:50:35,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:50:35,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:50:35,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:50:35,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:50:35,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:50:35,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:50:35,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:50:35,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:50:35,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:50:35,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:50:35,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:50:35,500 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7677b481-8d3b-4304-89db-ec2afe86adc1/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:50:35,546 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:50:35,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:50:35,547 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:50:35,547 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:50:35,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:50:35,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:50:35,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:50:35,549 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:50:35,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:50:35,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:50:35,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:50:35,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:50:35,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:50:35,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:50:35,555 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:50:35,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:50:35,555 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:50:35,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:50:35,555 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:50:35,556 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:50:35,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:50:35,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:50:35,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:50:35,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:50:35,557 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:50:35,557 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:50:35,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:50:35,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:50:35,558 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_7677b481-8d3b-4304-89db-ec2afe86adc1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7677b481-8d3b-4304-89db-ec2afe86adc1/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04841d1aba9375b8a6b06dc8afee8df1fa6191c086b63f3a4a476e022f53e582 [2021-11-23 00:50:35,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:50:35,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:50:35,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:50:35,878 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:50:35,879 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:50:35,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7677b481-8d3b-4304-89db-ec2afe86adc1/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/eca-rers2012/Problem16_label15.c [2021-11-23 00:50:35,954 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7677b481-8d3b-4304-89db-ec2afe86adc1/bin/ukojak-LBtLqBUTdQ/data/6e784c29d/7a8b8f258dc44c72b9b739124e2b5c8c/FLAGafe882e72 [2021-11-23 00:50:36,722 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:50:36,722 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7677b481-8d3b-4304-89db-ec2afe86adc1/sv-benchmarks/c/eca-rers2012/Problem16_label15.c [2021-11-23 00:50:36,766 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7677b481-8d3b-4304-89db-ec2afe86adc1/bin/ukojak-LBtLqBUTdQ/data/6e784c29d/7a8b8f258dc44c72b9b739124e2b5c8c/FLAGafe882e72 [2021-11-23 00:50:36,833 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7677b481-8d3b-4304-89db-ec2afe86adc1/bin/ukojak-LBtLqBUTdQ/data/6e784c29d/7a8b8f258dc44c72b9b739124e2b5c8c [2021-11-23 00:50:36,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:50:36,837 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:50:36,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:50:36,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:50:36,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:50:36,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:50:36" (1/1) ... [2021-11-23 00:50:36,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6777b35c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:36, skipping insertion in model container [2021-11-23 00:50:36,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:50:36" (1/1) ... [2021-11-23 00:50:36,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:50:36,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:50:37,188 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_7677b481-8d3b-4304-89db-ec2afe86adc1/sv-benchmarks/c/eca-rers2012/Problem16_label15.c[2501,2514] [2021-11-23 00:50:37,648 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:50:37,656 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:50:37,672 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_7677b481-8d3b-4304-89db-ec2afe86adc1/sv-benchmarks/c/eca-rers2012/Problem16_label15.c[2501,2514] [2021-11-23 00:50:37,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:50:37,962 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:50:37,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:37 WrapperNode [2021-11-23 00:50:37,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:50:37,964 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:50:37,964 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:50:37,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:50:37,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:37" (1/1) ... [2021-11-23 00:50:38,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:37" (1/1) ... [2021-11-23 00:50:38,120 INFO L137 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1768 [2021-11-23 00:50:38,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:50:38,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:50:38,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:50:38,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:50:38,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:37" (1/1) ... [2021-11-23 00:50:38,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:37" (1/1) ... [2021-11-23 00:50:38,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:37" (1/1) ... [2021-11-23 00:50:38,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:37" (1/1) ... [2021-11-23 00:50:38,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:37" (1/1) ... [2021-11-23 00:50:38,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:37" (1/1) ... [2021-11-23 00:50:38,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:37" (1/1) ... [2021-11-23 00:50:38,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:50:38,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:50:38,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:50:38,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:50:38,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:37" (1/1) ... [2021-11-23 00:50:38,329 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:50:38,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7677b481-8d3b-4304-89db-ec2afe86adc1/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:50:38,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7677b481-8d3b-4304-89db-ec2afe86adc1/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:50:38,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7677b481-8d3b-4304-89db-ec2afe86adc1/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:50:38,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:50:38,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:50:38,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:50:38,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:50:38,485 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:50:38,487 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:50:40,979 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:50:51,833 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:50:51,834 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:50:51,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:50:51 BoogieIcfgContainer [2021-11-23 00:50:51,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:50:51,837 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:50:51,837 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:50:51,849 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:50:51,850 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:50:51" (1/1) ... [2021-11-23 00:50:51,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:50:51,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:50:51,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-11-23 00:50:51,917 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-23 00:50:51,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 00:50:51,920 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:50:51,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:50:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:50:52,158 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 00:50:52,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:50:52,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2021-11-23 00:50:52,573 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-23 00:50:52,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:50:52,573 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:50:52,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:50:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:50:53,898 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 00:50:54,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:50:54,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2021-11-23 00:50:54,723 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2021-11-23 00:50:54,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 00:50:54,725 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:50:54,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:50:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:50:57,598 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 00:51:08,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:51:09,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:51:09,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 30 states and 49 transitions. [2021-11-23 00:51:09,206 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 49 transitions. [2021-11-23 00:51:09,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 00:51:09,207 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:51:09,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:51:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:51:11,551 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 00:51:11,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:51:11,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 33 states and 54 transitions. [2021-11-23 00:51:11,956 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 54 transitions. [2021-11-23 00:51:11,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 00:51:11,957 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:51:11,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:51:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:51:17,033 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 00:51:19,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:51:19,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 41 states and 81 transitions. [2021-11-23 00:51:19,760 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 81 transitions. [2021-11-23 00:51:19,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 00:51:19,762 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:51:19,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:51:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:51:23,540 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 00:51:24,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:51:24,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 47 states and 92 transitions. [2021-11-23 00:51:24,911 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 92 transitions. [2021-11-23 00:51:24,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 00:51:24,912 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:51:24,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:51:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:51:41,126 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 00:51:43,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:51:46,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:51:46,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 59 states and 129 transitions. [2021-11-23 00:51:46,772 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 129 transitions. [2021-11-23 00:51:46,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 00:51:46,773 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:51:46,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:51:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:51:57,070 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 00:51:59,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:51:59,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 68 states and 144 transitions. [2021-11-23 00:51:59,193 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2021-11-23 00:51:59,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 00:51:59,195 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:51:59,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:52:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:52:06,697 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:52:08,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:52:08,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 76 states and 165 transitions. [2021-11-23 00:52:08,936 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 165 transitions. [2021-11-23 00:52:08,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 00:52:08,937 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:52:08,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:52:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat