./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_10-2.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_3aa3e112-0dfc-4d89-bd02-254407470c5b/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa3e112-0dfc-4d89-bd02-254407470c5b/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_3aa3e112-0dfc-4d89-bd02-254407470c5b/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa3e112-0dfc-4d89-bd02-254407470c5b/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_10-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa3e112-0dfc-4d89-bd02-254407470c5b/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_3aa3e112-0dfc-4d89-bd02-254407470c5b/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 a6546395432109233bf3e1991428a566548dd822bb23ca198622322bf4db5a8a --- 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 16:31:13,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:31:13,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:31:13,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:31:13,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:31:13,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:31:13,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:31:13,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:31:13,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:31:13,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:31:13,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:31:13,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:31:13,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:31:13,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:31:13,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:31:13,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:31:13,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:31:13,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:31:13,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:31:14,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:31:14,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:31:14,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:31:14,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:31:14,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:31:14,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:31:14,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:31:14,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:31:14,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:31:14,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:31:14,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:31:14,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:31:14,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:31:14,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:31:14,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:31:14,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:31:14,041 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:31:14,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:31:14,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:31:14,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:31:14,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:31:14,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:31:14,046 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa3e112-0dfc-4d89-bd02-254407470c5b/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:31:14,086 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:31:14,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:31:14,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:31:14,088 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:31:14,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:31:14,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:31:14,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:31:14,090 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:31:14,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:31:14,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:31:14,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:31:14,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:31:14,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:31:14,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:31:14,093 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:31:14,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:31:14,093 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:31:14,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:31:14,094 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:31:14,094 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:31:14,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:31:14,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:31:14,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:31:14,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:31:14,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:31:14,095 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:31:14,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:31:14,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:31:14,097 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_3aa3e112-0dfc-4d89-bd02-254407470c5b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa3e112-0dfc-4d89-bd02-254407470c5b/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6546395432109233bf3e1991428a566548dd822bb23ca198622322bf4db5a8a [2022-10-17 16:31:14,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:31:14,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:31:14,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:31:14,407 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:31:14,409 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:31:14,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa3e112-0dfc-4d89-bd02-254407470c5b/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/recursive-simple/fibo_10-2.c [2022-10-17 16:31:14,482 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa3e112-0dfc-4d89-bd02-254407470c5b/bin/ukojak-92XMlrwhuB/data/d678b7db8/b41e174221e4499ca784c652839c100e/FLAG85a4acf6a [2022-10-17 16:31:14,970 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:31:14,971 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa3e112-0dfc-4d89-bd02-254407470c5b/sv-benchmarks/c/recursive-simple/fibo_10-2.c [2022-10-17 16:31:14,981 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa3e112-0dfc-4d89-bd02-254407470c5b/bin/ukojak-92XMlrwhuB/data/d678b7db8/b41e174221e4499ca784c652839c100e/FLAG85a4acf6a [2022-10-17 16:31:15,341 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa3e112-0dfc-4d89-bd02-254407470c5b/bin/ukojak-92XMlrwhuB/data/d678b7db8/b41e174221e4499ca784c652839c100e [2022-10-17 16:31:15,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:31:15,346 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:31:15,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:31:15,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:31:15,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:31:15,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:31:15" (1/1) ... [2022-10-17 16:31:15,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66561e75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:15, skipping insertion in model container [2022-10-17 16:31:15,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:31:15" (1/1) ... [2022-10-17 16:31:15,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:31:15,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:31:15,579 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_3aa3e112-0dfc-4d89-bd02-254407470c5b/sv-benchmarks/c/recursive-simple/fibo_10-2.c[743,756] [2022-10-17 16:31:15,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:31:15,596 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:31:15,621 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_3aa3e112-0dfc-4d89-bd02-254407470c5b/sv-benchmarks/c/recursive-simple/fibo_10-2.c[743,756] [2022-10-17 16:31:15,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:31:15,638 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:31:15,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:15 WrapperNode [2022-10-17 16:31:15,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:31:15,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:31:15,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:31:15,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:31:15,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:15" (1/1) ... [2022-10-17 16:31:15,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:15" (1/1) ... [2022-10-17 16:31:15,695 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-10-17 16:31:15,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:31:15,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:31:15,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:31:15,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:31:15,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:15" (1/1) ... [2022-10-17 16:31:15,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:15" (1/1) ... [2022-10-17 16:31:15,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:15" (1/1) ... [2022-10-17 16:31:15,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:15" (1/1) ... [2022-10-17 16:31:15,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:15" (1/1) ... [2022-10-17 16:31:15,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:15" (1/1) ... [2022-10-17 16:31:15,729 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:15" (1/1) ... [2022-10-17 16:31:15,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:15" (1/1) ... [2022-10-17 16:31:15,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:31:15,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:31:15,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:31:15,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:31:15,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:15" (1/1) ... [2022-10-17 16:31:15,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:31:15,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa3e112-0dfc-4d89-bd02-254407470c5b/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:31:15,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa3e112-0dfc-4d89-bd02-254407470c5b/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:31:15,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa3e112-0dfc-4d89-bd02-254407470c5b/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:31:15,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:31:15,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:31:15,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:31:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:31:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2022-10-17 16:31:15,843 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2022-10-17 16:31:15,916 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:31:15,918 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:31:16,079 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:31:16,108 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:31:16,109 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:31:16,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:31:16 BoogieIcfgContainer [2022-10-17 16:31:16,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:31:16,113 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:31:16,113 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:31:16,125 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:31:16,126 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:31:16" (1/1) ... [2022-10-17 16:31:16,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:31:16,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:16,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2022-10-17 16:31:16,213 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-10-17 16:31:16,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:31:16,219 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:16,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:16,555 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 16:31:16,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:16,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 25 transitions. [2022-10-17 16:31:16,676 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2022-10-17 16:31:16,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:31:16,677 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:16,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:16,824 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 16:31:16,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:16,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 21 states and 29 transitions. [2022-10-17 16:31:16,935 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2022-10-17 16:31:16,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-17 16:31:16,936 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:16,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:17,115 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 16:31:17,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:17,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 21 states and 28 transitions. [2022-10-17 16:31:17,308 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2022-10-17 16:31:17,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 16:31:17,309 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:17,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:17,470 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 16:31:17,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:17,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 26 states and 40 transitions. [2022-10-17 16:31:17,728 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2022-10-17 16:31:17,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-17 16:31:17,733 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:17,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:18,063 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 16:31:18,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:18,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 29 states and 47 transitions. [2022-10-17 16:31:18,514 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2022-10-17 16:31:18,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 16:31:18,516 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:18,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:18,663 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 16:31:18,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:18,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 34 states and 62 transitions. [2022-10-17 16:31:18,931 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 62 transitions. [2022-10-17 16:31:18,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 16:31:18,934 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:18,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:19,118 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 16:31:19,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:19,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 34 states and 61 transitions. [2022-10-17 16:31:19,416 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 61 transitions. [2022-10-17 16:31:19,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-17 16:31:19,430 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:19,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:19,634 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 16:31:19,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:19,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 39 states and 78 transitions. [2022-10-17 16:31:19,943 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 78 transitions. [2022-10-17 16:31:19,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-17 16:31:19,945 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:19,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:20,276 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 16:31:20,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:20,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 39 states and 77 transitions. [2022-10-17 16:31:20,520 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 77 transitions. [2022-10-17 16:31:20,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-10-17 16:31:20,525 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:20,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:20,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:20,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 69 proven. 421 refuted. 0 times theorem prover too weak. 913 trivial. 0 not checked. [2022-10-17 16:31:21,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:21,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 44 states and 96 transitions. [2022-10-17 16:31:21,220 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 96 transitions. [2022-10-17 16:31:21,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-10-17 16:31:21,223 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:21,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:21,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2241 backedges. 117 proven. 639 refuted. 0 times theorem prover too weak. 1485 trivial. 0 not checked. [2022-10-17 16:31:22,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:22,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 49 states and 118 transitions. [2022-10-17 16:31:22,031 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 118 transitions. [2022-10-17 16:31:22,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-10-17 16:31:22,035 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:22,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:22,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1947 backedges. 401 proven. 383 refuted. 0 times theorem prover too weak. 1163 trivial. 0 not checked. [2022-10-17 16:31:23,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:23,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 51 states and 119 transitions. [2022-10-17 16:31:23,066 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 119 transitions. [2022-10-17 16:31:23,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2022-10-17 16:31:23,081 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:23,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:24,099 INFO L134 CoverageAnalysis]: Checked inductivity of 14031 backedges. 376 proven. 2115 refuted. 0 times theorem prover too weak. 11540 trivial. 0 not checked. [2022-10-17 16:31:24,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:24,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 56 states and 143 transitions. [2022-10-17 16:31:24,528 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 143 transitions. [2022-10-17 16:31:24,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2022-10-17 16:31:24,538 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:24,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:25,930 INFO L134 CoverageAnalysis]: Checked inductivity of 14031 backedges. 1627 proven. 2103 refuted. 0 times theorem prover too weak. 10301 trivial. 0 not checked. [2022-10-17 16:31:26,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:26,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 56 states and 141 transitions. [2022-10-17 16:31:26,301 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 141 transitions. [2022-10-17 16:31:26,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2022-10-17 16:31:26,313 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:26,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:27,475 INFO L134 CoverageAnalysis]: Checked inductivity of 17241 backedges. 938 proven. 2731 refuted. 0 times theorem prover too weak. 13572 trivial. 0 not checked. [2022-10-17 16:31:27,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:27,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 56 states and 140 transitions. [2022-10-17 16:31:27,858 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 140 transitions. [2022-10-17 16:31:27,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2022-10-17 16:31:27,886 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:27,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:29,554 INFO L134 CoverageAnalysis]: Checked inductivity of 39393 backedges. 617 proven. 4318 refuted. 0 times theorem prover too weak. 34458 trivial. 0 not checked. [2022-10-17 16:31:30,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:30,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 61 states and 165 transitions. [2022-10-17 16:31:30,009 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 165 transitions. [2022-10-17 16:31:30,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1085 [2022-10-17 16:31:30,060 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:30,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:32,741 INFO L134 CoverageAnalysis]: Checked inductivity of 70569 backedges. 882 proven. 6658 refuted. 0 times theorem prover too weak. 63029 trivial. 0 not checked. [2022-10-17 16:31:33,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:33,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 66 states and 193 transitions. [2022-10-17 16:31:33,253 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 193 transitions. [2022-10-17 16:31:33,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1305 [2022-10-17 16:31:33,270 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:33,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:33,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:37,497 INFO L134 CoverageAnalysis]: Checked inductivity of 102375 backedges. 1984 proven. 7544 refuted. 0 times theorem prover too weak. 92847 trivial. 0 not checked. [2022-10-17 16:31:38,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:38,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 66 states and 121 transitions. [2022-10-17 16:31:38,912 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 121 transitions. [2022-10-17 16:31:38,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1965 [2022-10-17 16:31:38,941 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:38,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat