./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_25-2.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_507007fa-bd74-434c-af2a-2acbfe5c81d1/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507007fa-bd74-434c-af2a-2acbfe5c81d1/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_507007fa-bd74-434c-af2a-2acbfe5c81d1/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507007fa-bd74-434c-af2a-2acbfe5c81d1/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_25-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507007fa-bd74-434c-af2a-2acbfe5c81d1/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_507007fa-bd74-434c-af2a-2acbfe5c81d1/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 9030972e60093099261ffd255cd123d40a9b99982e16d5d1c2c77af1369268fd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:12:14,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:12:14,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:12:14,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:12:14,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:12:14,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:12:14,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:12:14,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:12:14,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:12:14,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:12:14,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:12:14,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:12:14,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:12:14,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:12:14,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:12:14,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:12:14,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:12:14,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:12:14,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:12:14,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:12:14,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:12:14,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:12:14,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:12:14,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:12:14,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:12:14,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:12:14,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:12:14,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:12:14,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:12:14,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:12:14,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:12:14,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:12:14,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:12:14,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:12:14,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:12:14,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:12:14,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:12:14,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:12:14,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:12:14,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:12:14,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:12:14,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507007fa-bd74-434c-af2a-2acbfe5c81d1/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:12:14,713 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:12:14,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:12:14,716 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:12:14,717 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:12:14,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:12:14,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:12:14,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:12:14,718 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:12:14,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:12:14,719 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:12:14,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:12:14,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:12:14,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:12:14,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:12:14,721 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:12:14,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:12:14,721 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:12:14,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:12:14,722 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:12:14,722 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:12:14,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:12:14,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:12:14,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:12:14,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:12:14,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:12:14,723 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:12:14,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:12:14,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:12:14,724 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_507007fa-bd74-434c-af2a-2acbfe5c81d1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507007fa-bd74-434c-af2a-2acbfe5c81d1/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9030972e60093099261ffd255cd123d40a9b99982e16d5d1c2c77af1369268fd [2021-11-23 01:12:15,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:12:15,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:12:15,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:12:15,052 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:12:15,053 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:12:15,055 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507007fa-bd74-434c-af2a-2acbfe5c81d1/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/recursive-simple/fibo_25-2.c [2021-11-23 01:12:15,118 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507007fa-bd74-434c-af2a-2acbfe5c81d1/bin/ukojak-LBtLqBUTdQ/data/11cb92088/a0039cd01f1e4ff385e9f94b1376fc08/FLAG3cadd8e67 [2021-11-23 01:12:15,525 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:12:15,525 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507007fa-bd74-434c-af2a-2acbfe5c81d1/sv-benchmarks/c/recursive-simple/fibo_25-2.c [2021-11-23 01:12:15,532 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507007fa-bd74-434c-af2a-2acbfe5c81d1/bin/ukojak-LBtLqBUTdQ/data/11cb92088/a0039cd01f1e4ff385e9f94b1376fc08/FLAG3cadd8e67 [2021-11-23 01:12:15,942 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507007fa-bd74-434c-af2a-2acbfe5c81d1/bin/ukojak-LBtLqBUTdQ/data/11cb92088/a0039cd01f1e4ff385e9f94b1376fc08 [2021-11-23 01:12:15,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:12:15,946 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:12:15,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:12:15,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:12:15,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:12:15,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:12:15" (1/1) ... [2021-11-23 01:12:15,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4fba05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:15, skipping insertion in model container [2021-11-23 01:12:15,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:12:15" (1/1) ... [2021-11-23 01:12:15,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:12:15,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:12:16,106 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_507007fa-bd74-434c-af2a-2acbfe5c81d1/sv-benchmarks/c/recursive-simple/fibo_25-2.c[746,759] [2021-11-23 01:12:16,126 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:12:16,146 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:12:16,170 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_507007fa-bd74-434c-af2a-2acbfe5c81d1/sv-benchmarks/c/recursive-simple/fibo_25-2.c[746,759] [2021-11-23 01:12:16,170 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:12:16,184 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:12:16,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:16 WrapperNode [2021-11-23 01:12:16,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:12:16,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:12:16,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:12:16,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:12:16,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:16" (1/1) ... [2021-11-23 01:12:16,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:16" (1/1) ... [2021-11-23 01:12:16,221 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2021-11-23 01:12:16,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:12:16,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:12:16,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:12:16,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:12:16,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:16" (1/1) ... [2021-11-23 01:12:16,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:16" (1/1) ... [2021-11-23 01:12:16,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:16" (1/1) ... [2021-11-23 01:12:16,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:16" (1/1) ... [2021-11-23 01:12:16,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:16" (1/1) ... [2021-11-23 01:12:16,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:16" (1/1) ... [2021-11-23 01:12:16,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:16" (1/1) ... [2021-11-23 01:12:16,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:12:16,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:12:16,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:12:16,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:12:16,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:16" (1/1) ... [2021-11-23 01:12:16,256 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:12:16,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507007fa-bd74-434c-af2a-2acbfe5c81d1/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:12:16,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507007fa-bd74-434c-af2a-2acbfe5c81d1/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:12:16,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507007fa-bd74-434c-af2a-2acbfe5c81d1/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:12:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:12:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:12:16,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:12:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:12:16,328 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2021-11-23 01:12:16,328 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2021-11-23 01:12:16,396 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:12:16,397 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:12:16,478 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:12:16,492 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:12:16,492 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 01:12:16,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:12:16 BoogieIcfgContainer [2021-11-23 01:12:16,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:12:16,496 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:12:16,496 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:12:16,504 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:12:16,504 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:12:16" (1/1) ... [2021-11-23 01:12:16,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:12:16,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:16,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2021-11-23 01:12:16,572 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2021-11-23 01:12:16,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:12:16,577 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:16,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:16,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:12:16,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:16,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 25 transitions. [2021-11-23 01:12:16,881 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2021-11-23 01:12:16,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 01:12:16,882 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:16,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:16,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:12:17,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:17,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 21 states and 29 transitions. [2021-11-23 01:12:17,020 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2021-11-23 01:12:17,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:12:17,022 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:17,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:17,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:17,112 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:12:17,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:17,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 21 states and 28 transitions. [2021-11-23 01:12:17,240 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2021-11-23 01:12:17,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:12:17,241 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:17,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:17,347 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 01:12:17,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:17,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 26 states and 40 transitions. [2021-11-23 01:12:17,605 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2021-11-23 01:12:17,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 01:12:17,610 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:17,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:17,877 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-23 01:12:18,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:18,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 29 states and 47 transitions. [2021-11-23 01:12:18,350 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2021-11-23 01:12:18,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 01:12:18,353 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:18,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:18,485 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:12:18,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:18,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 34 states and 62 transitions. [2021-11-23 01:12:18,742 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 62 transitions. [2021-11-23 01:12:18,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 01:12:18,745 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:18,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:18,900 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 47 proven. 28 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 01:12:19,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:19,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 34 states and 61 transitions. [2021-11-23 01:12:19,212 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 61 transitions. [2021-11-23 01:12:19,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 01:12:19,215 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:19,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:19,364 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 17 proven. 88 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-23 01:12:19,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:19,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 39 states and 78 transitions. [2021-11-23 01:12:19,657 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 78 transitions. [2021-11-23 01:12:19,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-23 01:12:19,661 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:19,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:19,874 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 131 proven. 122 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2021-11-23 01:12:20,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:20,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 39 states and 77 transitions. [2021-11-23 01:12:20,157 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 77 transitions. [2021-11-23 01:12:20,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-23 01:12:20,162 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:20,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:20,333 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 42 proven. 229 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2021-11-23 01:12:20,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:20,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 44 states and 96 transitions. [2021-11-23 01:12:20,657 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 96 transitions. [2021-11-23 01:12:20,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-23 01:12:20,661 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:20,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:20,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 263 proven. 302 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2021-11-23 01:12:21,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:21,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 44 states and 95 transitions. [2021-11-23 01:12:21,145 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 95 transitions. [2021-11-23 01:12:21,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-11-23 01:12:21,149 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:21,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:21,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:21,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3330 backedges. 132 proven. 828 refuted. 0 times theorem prover too weak. 2370 trivial. 0 not checked. [2021-11-23 01:12:21,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:21,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 49 states and 116 transitions. [2021-11-23 01:12:21,645 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 116 transitions. [2021-11-23 01:12:21,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2021-11-23 01:12:21,655 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:21,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:21,969 INFO L134 CoverageAnalysis]: Checked inductivity of 9549 backedges. 262 proven. 1749 refuted. 0 times theorem prover too weak. 7538 trivial. 0 not checked. [2021-11-23 01:12:22,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:22,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 54 states and 140 transitions. [2021-11-23 01:12:22,349 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 140 transitions. [2021-11-23 01:12:22,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2021-11-23 01:12:22,366 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:22,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:22,677 INFO L134 CoverageAnalysis]: Checked inductivity of 16407 backedges. 421 proven. 2654 refuted. 0 times theorem prover too weak. 13332 trivial. 0 not checked. [2021-11-23 01:12:23,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:23,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 59 states and 167 transitions. [2021-11-23 01:12:23,087 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 167 transitions. [2021-11-23 01:12:23,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2021-11-23 01:12:23,134 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:23,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:23,796 INFO L134 CoverageAnalysis]: Checked inductivity of 39779 backedges. 3326 proven. 4448 refuted. 0 times theorem prover too weak. 32005 trivial. 0 not checked. [2021-11-23 01:12:24,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:24,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 59 states and 164 transitions. [2021-11-23 01:12:24,175 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 164 transitions. [2021-11-23 01:12:24,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 869 [2021-11-23 01:12:24,189 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:24,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:24,756 INFO L134 CoverageAnalysis]: Checked inductivity of 45069 backedges. 1816 proven. 5621 refuted. 0 times theorem prover too weak. 37632 trivial. 0 not checked. [2021-11-23 01:12:25,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:25,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 59 states and 162 transitions. [2021-11-23 01:12:25,141 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 162 transitions. [2021-11-23 01:12:25,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1227 [2021-11-23 01:12:25,155 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:25,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:25,852 INFO L134 CoverageAnalysis]: Checked inductivity of 90414 backedges. 1002 proven. 7596 refuted. 0 times theorem prover too weak. 81816 trivial. 0 not checked. [2021-11-23 01:12:26,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:26,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 64 states and 189 transitions. [2021-11-23 01:12:26,301 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 189 transitions. [2021-11-23 01:12:26,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2211 [2021-11-23 01:12:26,355 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:26,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:27,835 INFO L134 CoverageAnalysis]: Checked inductivity of 295578 backedges. 2194 proven. 15456 refuted. 0 times theorem prover too weak. 277928 trivial. 0 not checked. [2021-11-23 01:12:28,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:28,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 69 states and 219 transitions. [2021-11-23 01:12:28,330 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 219 transitions. [2021-11-23 01:12:28,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1842 [2021-11-23 01:12:28,381 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:28,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:29,365 INFO L134 CoverageAnalysis]: Checked inductivity of 204804 backedges. 2754 proven. 11476 refuted. 0 times theorem prover too weak. 190574 trivial. 0 not checked. [2021-11-23 01:12:29,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:29,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 71 states and 221 transitions. [2021-11-23 01:12:29,663 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 221 transitions. [2021-11-23 01:12:29,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1632 [2021-11-23 01:12:29,685 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:29,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:30,911 INFO L134 CoverageAnalysis]: Checked inductivity of 160569 backedges. 11145 proven. 6417 refuted. 0 times theorem prover too weak. 143007 trivial. 0 not checked. [2021-11-23 01:12:31,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:31,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 73 states and 222 transitions. [2021-11-23 01:12:31,638 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 222 transitions. [2021-11-23 01:12:31,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2286 [2021-11-23 01:12:31,680 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:31,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:33,301 INFO L134 CoverageAnalysis]: Checked inductivity of 316080 backedges. 12146 proven. 18230 refuted. 0 times theorem prover too weak. 285704 trivial. 0 not checked. [2021-11-23 01:12:33,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:33,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 73 states and 221 transitions. [2021-11-23 01:12:33,776 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 221 transitions. [2021-11-23 01:12:33,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2665 [2021-11-23 01:12:33,824 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:33,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:35,547 INFO L134 CoverageAnalysis]: Checked inductivity of 430095 backedges. 2750 proven. 16458 refuted. 0 times theorem prover too weak. 410887 trivial. 0 not checked. [2021-11-23 01:12:35,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:35,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 73 states and 220 transitions. [2021-11-23 01:12:35,846 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 220 transitions. [2021-11-23 01:12:35,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2309 [2021-11-23 01:12:35,886 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:35,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:37,131 INFO L134 CoverageAnalysis]: Checked inductivity of 322533 backedges. 2417 proven. 17872 refuted. 0 times theorem prover too weak. 302244 trivial. 0 not checked. [2021-11-23 01:12:37,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:37,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 78 states and 251 transitions. [2021-11-23 01:12:37,698 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 251 transitions. [2021-11-23 01:12:38,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8157 [2021-11-23 01:12:38,105 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:38,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:47,322 INFO L134 CoverageAnalysis]: Checked inductivity of 4048569 backedges. 7468 proven. 71584 refuted. 0 times theorem prover too weak. 3969517 trivial. 0 not checked. [2021-11-23 01:12:47,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:47,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 80 states and 253 transitions. [2021-11-23 01:12:47,718 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 253 transitions. [2021-11-23 01:12:47,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4845 [2021-11-23 01:12:47,898 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:47,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:51,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1425985 backedges. 4253 proven. 43100 refuted. 0 times theorem prover too weak. 1378632 trivial. 0 not checked. [2021-11-23 01:12:52,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:52,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 85 states and 287 transitions. [2021-11-23 01:12:52,376 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 287 transitions. [2021-11-23 01:12:52,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6537 [2021-11-23 01:12:52,597 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:52,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:58,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2598399 backedges. 8901 proven. 65170 refuted. 0 times theorem prover too weak. 2524328 trivial. 0 not checked. [2021-11-23 01:12:58,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:58,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 87 states and 289 transitions. [2021-11-23 01:12:58,989 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 289 transitions. [2021-11-23 01:12:59,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5661 [2021-11-23 01:12:59,185 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:59,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:03,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1947865 backedges. 11262 proven. 53868 refuted. 0 times theorem prover too weak. 1882735 trivial. 0 not checked. [2021-11-23 01:13:04,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:04,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 89 states and 291 transitions. [2021-11-23 01:13:04,214 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 291 transitions. [2021-11-23 01:13:04,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7845 [2021-11-23 01:13:04,738 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:04,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:12,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3744045 backedges. 10389 proven. 78718 refuted. 0 times theorem prover too weak. 3654938 trivial. 0 not checked. [2021-11-23 01:13:12,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:12,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 89 states and 291 transitions. [2021-11-23 01:13:12,884 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 291 transitions. [2021-11-23 01:13:13,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4287 [2021-11-23 01:13:13,009 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:13,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:16,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1115874 backedges. 39392 proven. 18736 refuted. 0 times theorem prover too weak. 1057746 trivial. 0 not checked. [2021-11-23 01:13:17,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:17,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 91 states and 292 transitions. [2021-11-23 01:13:17,095 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 292 transitions. [2021-11-23 01:13:17,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5661 [2021-11-23 01:13:17,394 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:17,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:23,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1947865 backedges. 39488 proven. 56302 refuted. 0 times theorem prover too weak. 1852075 trivial. 0 not checked. [2021-11-23 01:13:24,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:24,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 91 states and 291 transitions. [2021-11-23 01:13:24,045 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 291 transitions. [2021-11-23 01:13:24,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7962 [2021-11-23 01:13:24,380 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:24,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:33,399 INFO L134 CoverageAnalysis]: Checked inductivity of 3856824 backedges. 12796 proven. 58886 refuted. 0 times theorem prover too weak. 3785142 trivial. 0 not checked. [2021-11-23 01:13:33,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:33,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 91 states and 290 transitions. [2021-11-23 01:13:33,725 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 290 transitions. [2021-11-23 01:13:34,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6861 [2021-11-23 01:13:34,033 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:34,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:41,998 INFO L134 CoverageAnalysis]: Checked inductivity of 2862801 backedges. 7581 proven. 65533 refuted. 0 times theorem prover too weak. 2789687 trivial. 0 not checked. [2021-11-23 01:13:42,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:42,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 96 states and 325 transitions. [2021-11-23 01:13:42,623 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 325 transitions. [2021-11-23 01:13:43,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12867 [2021-11-23 01:13:43,553 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:43,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:57,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:14:09,033 INFO L134 CoverageAnalysis]: Checked inductivity of 10081404 backedges. 14126 proven. 134662 refuted. 0 times theorem prover too weak. 9932616 trivial. 0 not checked. [2021-11-23 01:14:09,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:14:09,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 101 states and 363 transitions. [2021-11-23 01:14:09,677 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 363 transitions. [2021-11-23 01:14:10,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11502 [2021-11-23 01:14:10,355 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:14:10,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:14:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:14:27,026 INFO L134 CoverageAnalysis]: Checked inductivity of 8054614 backedges. 17661 proven. 128962 refuted. 0 times theorem prover too weak. 7907991 trivial. 0 not checked. [2021-11-23 01:14:27,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:14:27,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 103 states and 365 transitions. [2021-11-23 01:14:27,466 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 365 transitions. [2021-11-23 01:14:28,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14813 [2021-11-23 01:14:28,538 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:14:28,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:14:51,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:08,890 INFO L134 CoverageAnalysis]: Checked inductivity of 13364025 backedges. 123627 proven. 180025 refuted. 0 times theorem prover too weak. 13060373 trivial. 0 not checked. [2021-11-23 01:15:09,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:09,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 103 states and 363 transitions. [2021-11-23 01:15:09,498 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 363 transitions. [2021-11-23 01:15:11,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18873 [2021-11-23 01:15:11,283 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:11,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:15:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:53,889 INFO L134 CoverageAnalysis]: Checked inductivity of 21699423 backedges. 22410 proven. 241365 refuted. 0 times theorem prover too weak. 21435648 trivial. 0 not checked. [2021-11-23 01:15:54,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:54,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 105 states and 365 transitions. [2021-11-23 01:15:54,318 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 365 transitions. [2021-11-23 01:15:56,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20969 [2021-11-23 01:15:56,422 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:56,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:17:15,203 INFO L134 CoverageAnalysis]: Checked inductivity of 26789583 backedges. 85829 proven. 320554 refuted. 0 times theorem prover too weak. 26383200 trivial. 0 not checked. [2021-11-23 01:17:15,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:17:15,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 105 states and 364 transitions. [2021-11-23 01:17:15,868 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 364 transitions. [2021-11-23 01:17:22,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35949 [2021-11-23 01:17:22,078 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:17:22,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:53,303 INFO L134 CoverageAnalysis]: Checked inductivity of 78767073 backedges. 32074 proven. 416129 refuted. 0 times theorem prover too weak. 78318870 trivial. 0 not checked. [2021-11-23 01:20:54,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:54,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 110 states and 403 transitions. [2021-11-23 01:20:54,144 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 403 transitions. [2021-11-23 01:20:56,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23529 [2021-11-23 01:20:56,794 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:56,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:04,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:45,733 INFO L134 CoverageAnalysis]: Checked inductivity of 33733359 backedges. 211866 proven. 311828 refuted. 0 times theorem prover too weak. 33209665 trivial. 0 not checked. [2021-11-23 01:22:46,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:46,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 110 states and 402 transitions. [2021-11-23 01:22:46,412 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 402 transitions. [2021-11-23 01:22:55,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43629 [2021-11-23 01:22:55,545 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:55,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:25:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat