./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/Fibonacci03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd5c90c-ed7d-4214-8d9e-b81b619c7232/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd5c90c-ed7d-4214-8d9e-b81b619c7232/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd5c90c-ed7d-4214-8d9e-b81b619c7232/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd5c90c-ed7d-4214-8d9e-b81b619c7232/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/Fibonacci03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd5c90c-ed7d-4214-8d9e-b81b619c7232/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd5c90c-ed7d-4214-8d9e-b81b619c7232/bin/ukojak-92XMlrwhuB --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 be0a584ba9648c80e7a0523ff51ba530f1926c55cecd3c62f2cee05fbbff42e3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:58:07,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:58:07,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:58:07,994 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:58:07,995 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:58:07,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:58:07,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:58:08,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:58:08,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:58:08,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:58:08,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:58:08,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:58:08,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:58:08,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:58:08,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:58:08,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:58:08,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:58:08,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:58:08,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:58:08,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:58:08,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:58:08,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:58:08,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:58:08,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:58:08,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:58:08,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:58:08,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:58:08,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:58:08,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:58:08,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:58:08,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:58:08,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:58:08,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:58:08,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:58:08,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:58:08,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:58:08,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:58:08,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:58:08,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:58:08,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:58:08,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:58:08,055 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd5c90c-ed7d-4214-8d9e-b81b619c7232/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:58:08,079 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:58:08,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:58:08,080 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:58:08,081 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:58:08,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:58:08,082 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:58:08,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:58:08,082 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:58:08,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:58:08,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:58:08,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:58:08,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:58:08,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:58:08,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:58:08,084 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:58:08,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:58:08,084 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:58:08,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:58:08,085 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:58:08,085 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:58:08,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:58:08,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:58:08,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:58:08,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:58:08,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:58:08,086 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:58:08,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:58:08,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:58:08,095 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_1fd5c90c-ed7d-4214-8d9e-b81b619c7232/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd5c90c-ed7d-4214-8d9e-b81b619c7232/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be0a584ba9648c80e7a0523ff51ba530f1926c55cecd3c62f2cee05fbbff42e3 [2022-10-17 16:58:08,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:58:08,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:58:08,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:58:08,408 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:58:08,410 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:58:08,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd5c90c-ed7d-4214-8d9e-b81b619c7232/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/recursive/Fibonacci03.c [2022-10-17 16:58:08,496 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd5c90c-ed7d-4214-8d9e-b81b619c7232/bin/ukojak-92XMlrwhuB/data/6293553ae/f23cedf6f2354086a817c8fb93ccfc7f/FLAG8a3636b08 [2022-10-17 16:58:09,047 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:58:09,048 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd5c90c-ed7d-4214-8d9e-b81b619c7232/sv-benchmarks/c/recursive/Fibonacci03.c [2022-10-17 16:58:09,055 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd5c90c-ed7d-4214-8d9e-b81b619c7232/bin/ukojak-92XMlrwhuB/data/6293553ae/f23cedf6f2354086a817c8fb93ccfc7f/FLAG8a3636b08 [2022-10-17 16:58:09,415 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd5c90c-ed7d-4214-8d9e-b81b619c7232/bin/ukojak-92XMlrwhuB/data/6293553ae/f23cedf6f2354086a817c8fb93ccfc7f [2022-10-17 16:58:09,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:58:09,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:58:09,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:58:09,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:58:09,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:58:09,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:58:09" (1/1) ... [2022-10-17 16:58:09,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60ac4ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:09, skipping insertion in model container [2022-10-17 16:58:09,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:58:09" (1/1) ... [2022-10-17 16:58:09,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:58:09,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:58:09,666 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_1fd5c90c-ed7d-4214-8d9e-b81b619c7232/sv-benchmarks/c/recursive/Fibonacci03.c[788,801] [2022-10-17 16:58:09,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:58:09,680 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:58:09,696 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_1fd5c90c-ed7d-4214-8d9e-b81b619c7232/sv-benchmarks/c/recursive/Fibonacci03.c[788,801] [2022-10-17 16:58:09,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:58:09,711 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:58:09,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:09 WrapperNode [2022-10-17 16:58:09,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:58:09,713 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:58:09,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:58:09,714 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:58:09,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:09" (1/1) ... [2022-10-17 16:58:09,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:09" (1/1) ... [2022-10-17 16:58:09,745 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2022-10-17 16:58:09,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:58:09,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:58:09,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:58:09,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:58:09,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:09" (1/1) ... [2022-10-17 16:58:09,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:09" (1/1) ... [2022-10-17 16:58:09,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:09" (1/1) ... [2022-10-17 16:58:09,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:09" (1/1) ... [2022-10-17 16:58:09,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:09" (1/1) ... [2022-10-17 16:58:09,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:09" (1/1) ... [2022-10-17 16:58:09,766 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:09" (1/1) ... [2022-10-17 16:58:09,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:09" (1/1) ... [2022-10-17 16:58:09,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:58:09,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:58:09,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:58:09,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:58:09,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:09" (1/1) ... [2022-10-17 16:58:09,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:58:09,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd5c90c-ed7d-4214-8d9e-b81b619c7232/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:58:09,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd5c90c-ed7d-4214-8d9e-b81b619c7232/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:58:09,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd5c90c-ed7d-4214-8d9e-b81b619c7232/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:58:09,857 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2022-10-17 16:58:09,858 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2022-10-17 16:58:09,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:58:09,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:58:09,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:58:09,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:58:09,921 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:58:09,923 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:58:10,067 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:58:10,084 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:58:10,084 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:58:10,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:58:10 BoogieIcfgContainer [2022-10-17 16:58:10,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:58:10,088 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:58:10,088 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:58:10,100 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:58:10,100 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:58:10" (1/1) ... [2022-10-17 16:58:10,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:58:10,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:10,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2022-10-17 16:58:10,173 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2022-10-17 16:58:10,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:58:10,178 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:10,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:10,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:58:10,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:10,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2022-10-17 16:58:10,590 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2022-10-17 16:58:10,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:58:10,591 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:10,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:10,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:58:10,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:10,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2022-10-17 16:58:10,949 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2022-10-17 16:58:10,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 16:58:10,951 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:10,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:11,195 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:58:11,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:11,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 36 transitions. [2022-10-17 16:58:11,331 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2022-10-17 16:58:11,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 16:58:11,332 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:11,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:11,487 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 16:58:11,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:11,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 33 states and 51 transitions. [2022-10-17 16:58:11,807 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2022-10-17 16:58:11,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 16:58:11,812 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:11,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:11,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:12,135 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-17 16:58:12,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:12,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 36 states and 58 transitions. [2022-10-17 16:58:12,659 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 58 transitions. [2022-10-17 16:58:12,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-17 16:58:12,661 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:12,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:12,798 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-17 16:58:13,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:13,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 43 states and 76 transitions. [2022-10-17 16:58:13,188 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 76 transitions. [2022-10-17 16:58:13,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-17 16:58:13,191 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:13,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:13,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:13,404 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 47 proven. 28 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-10-17 16:58:13,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:13,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 43 states and 75 transitions. [2022-10-17 16:58:13,775 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 75 transitions. [2022-10-17 16:58:13,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-17 16:58:13,788 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:13,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:14,039 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 22 proven. 127 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-10-17 16:58:14,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:14,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 50 states and 95 transitions. [2022-10-17 16:58:14,480 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 95 transitions. [2022-10-17 16:58:14,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-10-17 16:58:14,482 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:14,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:14,760 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 131 proven. 122 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-10-17 16:58:15,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:15,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 50 states and 94 transitions. [2022-10-17 16:58:15,053 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 94 transitions. [2022-10-17 16:58:15,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-10-17 16:58:15,057 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:15,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:15,365 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 42 proven. 229 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2022-10-17 16:58:15,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:15,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 57 states and 116 transitions. [2022-10-17 16:58:15,892 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 116 transitions. [2022-10-17 16:58:15,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-10-17 16:58:15,895 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:15,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:16,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 302 proven. 338 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2022-10-17 16:58:16,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:16,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 57 states and 115 transitions. [2022-10-17 16:58:16,782 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 115 transitions. [2022-10-17 16:58:16,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-10-17 16:58:16,788 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:16,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:16,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:17,301 INFO L134 CoverageAnalysis]: Checked inductivity of 4113 backedges. 142 proven. 942 refuted. 0 times theorem prover too weak. 3029 trivial. 0 not checked. [2022-10-17 16:58:17,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:17,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 64 states and 139 transitions. [2022-10-17 16:58:17,872 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 139 transitions. [2022-10-17 16:58:17,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2022-10-17 16:58:17,880 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:17,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:18,715 INFO L134 CoverageAnalysis]: Checked inductivity of 9644 backedges. 262 proven. 1763 refuted. 0 times theorem prover too weak. 7619 trivial. 0 not checked. [2022-10-17 16:58:19,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:19,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 71 states and 166 transitions. [2022-10-17 16:58:19,379 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 166 transitions. [2022-10-17 16:58:19,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 736 [2022-10-17 16:58:19,403 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:19,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:21,023 INFO L134 CoverageAnalysis]: Checked inductivity of 32112 backedges. 615 proven. 3816 refuted. 0 times theorem prover too weak. 27681 trivial. 0 not checked. [2022-10-17 16:58:21,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:21,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 78 states and 196 transitions. [2022-10-17 16:58:21,725 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 196 transitions. [2022-10-17 16:58:21,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2022-10-17 16:58:21,745 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:21,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:22,685 INFO L134 CoverageAnalysis]: Checked inductivity of 22149 backedges. 1477 proven. 2323 refuted. 0 times theorem prover too weak. 18349 trivial. 0 not checked. [2022-10-17 16:58:22,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:22,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 78 states and 196 transitions. [2022-10-17 16:58:22,884 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 196 transitions. [2022-10-17 16:58:22,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1474 [2022-10-17 16:58:22,994 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:22,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:23,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:26,563 INFO L134 CoverageAnalysis]: Checked inductivity of 130635 backedges. 1534 proven. 8395 refuted. 0 times theorem prover too weak. 120706 trivial. 0 not checked. [2022-10-17 16:58:26,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:26,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 80 states and 198 transitions. [2022-10-17 16:58:26,868 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 198 transitions. [2022-10-17 16:58:26,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1086 [2022-10-17 16:58:26,898 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:26,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:28,672 INFO L134 CoverageAnalysis]: Checked inductivity of 70569 backedges. 3873 proven. 1145 refuted. 0 times theorem prover too weak. 65551 trivial. 0 not checked. [2022-10-17 16:58:29,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:29,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 80 states and 195 transitions. [2022-10-17 16:58:29,007 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 195 transitions. [2022-10-17 16:58:29,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1086 [2022-10-17 16:58:29,020 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:29,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:30,784 INFO L134 CoverageAnalysis]: Checked inductivity of 70569 backedges. 2011 proven. 3007 refuted. 0 times theorem prover too weak. 65551 trivial. 0 not checked. [2022-10-17 16:58:31,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:31,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 80 states and 193 transitions. [2022-10-17 16:58:31,111 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 193 transitions. [2022-10-17 16:58:31,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1086 [2022-10-17 16:58:31,123 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:31,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:32,803 INFO L134 CoverageAnalysis]: Checked inductivity of 70569 backedges. 1257 proven. 3761 refuted. 0 times theorem prover too weak. 65551 trivial. 0 not checked. [2022-10-17 16:58:33,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:33,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 80 states and 192 transitions. [2022-10-17 16:58:33,117 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 192 transitions. [2022-10-17 16:58:33,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 979 [2022-10-17 16:58:33,127 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:33,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:33,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:35,244 INFO L134 CoverageAnalysis]: Checked inductivity of 57222 backedges. 1305 proven. 6532 refuted. 0 times theorem prover too weak. 49385 trivial. 0 not checked.