./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_7-1.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_c51a0da7-86c2-4e53-8047-845db1f98b26/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51a0da7-86c2-4e53-8047-845db1f98b26/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_c51a0da7-86c2-4e53-8047-845db1f98b26/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51a0da7-86c2-4e53-8047-845db1f98b26/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_7-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51a0da7-86c2-4e53-8047-845db1f98b26/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_c51a0da7-86c2-4e53-8047-845db1f98b26/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 17c70baee0bc6a4a26b6403fb6f46125ad9d7f8a7127109634f2327c61aaf5cb --- 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 16:48:04,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:48:04,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:48:04,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:48:04,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:48:04,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:48:04,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:48:04,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:48:04,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:48:04,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:48:04,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:48:04,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:48:04,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:48:04,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:48:04,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:48:04,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:48:04,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:48:04,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:48:04,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:48:04,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:48:04,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:48:04,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:48:04,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:48:04,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:48:04,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:48:04,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:48:04,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:48:04,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:48:04,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:48:04,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:48:04,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:48:04,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:48:04,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:48:04,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:48:04,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:48:05,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:48:05,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:48:05,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:48:05,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:48:05,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:48:05,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:48:05,004 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51a0da7-86c2-4e53-8047-845db1f98b26/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:48:05,029 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:48:05,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:48:05,030 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:48:05,030 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:48:05,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:48:05,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:48:05,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:48:05,032 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:48:05,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:48:05,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:48:05,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:48:05,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:48:05,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:48:05,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:48:05,033 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:48:05,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:48:05,033 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:48:05,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:48:05,034 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:48:05,034 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:48:05,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:48:05,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:48:05,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:48:05,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:48:05,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:48:05,035 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:48:05,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:48:05,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:48:05,036 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_c51a0da7-86c2-4e53-8047-845db1f98b26/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51a0da7-86c2-4e53-8047-845db1f98b26/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17c70baee0bc6a4a26b6403fb6f46125ad9d7f8a7127109634f2327c61aaf5cb [2022-10-17 16:48:05,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:48:05,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:48:05,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:48:05,321 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:48:05,321 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:48:05,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51a0da7-86c2-4e53-8047-845db1f98b26/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/recursive-simple/fibo_7-1.c [2022-10-17 16:48:05,387 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51a0da7-86c2-4e53-8047-845db1f98b26/bin/ukojak-92XMlrwhuB/data/04d5b127e/17f513dd0bb647fa94828fa1b7de58d3/FLAG8c7d33313 [2022-10-17 16:48:05,855 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:48:05,856 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51a0da7-86c2-4e53-8047-845db1f98b26/sv-benchmarks/c/recursive-simple/fibo_7-1.c [2022-10-17 16:48:05,864 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51a0da7-86c2-4e53-8047-845db1f98b26/bin/ukojak-92XMlrwhuB/data/04d5b127e/17f513dd0bb647fa94828fa1b7de58d3/FLAG8c7d33313 [2022-10-17 16:48:06,227 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51a0da7-86c2-4e53-8047-845db1f98b26/bin/ukojak-92XMlrwhuB/data/04d5b127e/17f513dd0bb647fa94828fa1b7de58d3 [2022-10-17 16:48:06,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:48:06,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:48:06,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:48:06,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:48:06,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:48:06,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:48:06" (1/1) ... [2022-10-17 16:48:06,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5be64d84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:06, skipping insertion in model container [2022-10-17 16:48:06,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:48:06" (1/1) ... [2022-10-17 16:48:06,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:48:06,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:48:06,482 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_c51a0da7-86c2-4e53-8047-845db1f98b26/sv-benchmarks/c/recursive-simple/fibo_7-1.c[741,754] [2022-10-17 16:48:06,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:48:06,502 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:48:06,516 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_c51a0da7-86c2-4e53-8047-845db1f98b26/sv-benchmarks/c/recursive-simple/fibo_7-1.c[741,754] [2022-10-17 16:48:06,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:48:06,527 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:48:06,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:06 WrapperNode [2022-10-17 16:48:06,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:48:06,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:48:06,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:48:06,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:48:06,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:06" (1/1) ... [2022-10-17 16:48:06,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:06" (1/1) ... [2022-10-17 16:48:06,565 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-10-17 16:48:06,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:48:06,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:48:06,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:48:06,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:48:06,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:06" (1/1) ... [2022-10-17 16:48:06,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:06" (1/1) ... [2022-10-17 16:48:06,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:06" (1/1) ... [2022-10-17 16:48:06,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:06" (1/1) ... [2022-10-17 16:48:06,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:06" (1/1) ... [2022-10-17 16:48:06,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:06" (1/1) ... [2022-10-17 16:48:06,591 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:06" (1/1) ... [2022-10-17 16:48:06,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:06" (1/1) ... [2022-10-17 16:48:06,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:48:06,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:48:06,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:48:06,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:48:06,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:06" (1/1) ... [2022-10-17 16:48:06,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:48:06,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51a0da7-86c2-4e53-8047-845db1f98b26/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:48:06,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51a0da7-86c2-4e53-8047-845db1f98b26/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:48:06,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51a0da7-86c2-4e53-8047-845db1f98b26/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:48:06,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:48:06,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:48:06,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:48:06,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:48:06,691 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2022-10-17 16:48:06,691 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2022-10-17 16:48:06,759 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:48:06,761 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:48:06,917 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:48:06,934 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:48:06,934 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:48:06,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:48:06 BoogieIcfgContainer [2022-10-17 16:48:06,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:48:06,938 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:48:06,938 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:48:06,950 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:48:06,950 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:48:06" (1/1) ... [2022-10-17 16:48:06,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:48:07,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:07,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2022-10-17 16:48:07,027 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-10-17 16:48:07,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:48:07,032 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:07,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:07,280 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 16:48:07,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:07,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 25 transitions. [2022-10-17 16:48:07,442 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2022-10-17 16:48:07,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:48:07,442 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:07,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:07,596 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 16:48:07,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:07,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 21 states and 29 transitions. [2022-10-17 16:48:07,750 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2022-10-17 16:48:07,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-17 16:48:07,752 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:07,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:07,870 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 16:48:08,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:08,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 21 states and 28 transitions. [2022-10-17 16:48:08,051 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2022-10-17 16:48:08,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 16:48:08,052 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:08,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:08,222 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 16:48:08,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:08,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 26 states and 40 transitions. [2022-10-17 16:48:08,458 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2022-10-17 16:48:08,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-17 16:48:08,460 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:08,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:08,733 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 16:48:09,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:09,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 29 states and 47 transitions. [2022-10-17 16:48:09,263 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2022-10-17 16:48:09,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 16:48:09,265 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:09,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:09,383 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 16:48:09,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:09,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 34 states and 62 transitions. [2022-10-17 16:48:09,666 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 62 transitions. [2022-10-17 16:48:09,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 16:48:09,670 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:09,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:09,921 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 16:48:10,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:10,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 34 states and 61 transitions. [2022-10-17 16:48:10,226 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 61 transitions. [2022-10-17 16:48:10,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-17 16:48:10,233 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:10,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:10,443 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 17 proven. 88 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-17 16:48:10,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:10,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 39 states and 78 transitions. [2022-10-17 16:48:10,721 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 78 transitions. [2022-10-17 16:48:10,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-17 16:48:10,726 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:10,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:11,040 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 52 proven. 326 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2022-10-17 16:48:11,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:11,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 44 states and 98 transitions. [2022-10-17 16:48:11,364 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 98 transitions. [2022-10-17 16:48:11,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-10-17 16:48:11,367 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:11,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:11,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1926 backedges. 91 proven. 597 refuted. 0 times theorem prover too weak. 1238 trivial. 0 not checked. [2022-10-17 16:48:12,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:12,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 49 states and 121 transitions. [2022-10-17 16:48:12,170 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 121 transitions. [2022-10-17 16:48:12,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-10-17 16:48:12,173 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:12,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:12,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2264 backedges. 447 proven. 412 refuted. 0 times theorem prover too weak. 1405 trivial. 0 not checked. [2022-10-17 16:48:13,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:13,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 51 states and 121 transitions. [2022-10-17 16:48:13,319 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 121 transitions. [2022-10-17 16:48:13,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-10-17 16:48:13,325 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:13,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:14,220 INFO L134 CoverageAnalysis]: Checked inductivity of 9549 backedges. 496 proven. 1064 refuted. 0 times theorem prover too weak. 7989 trivial. 0 not checked. [2022-10-17 16:48:15,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:15,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 51 states and 80 transitions. [2022-10-17 16:48:15,350 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 80 transitions. [2022-10-17 16:48:15,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-10-17 16:48:15,354 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:15,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:15,861 INFO L134 CoverageAnalysis]: Checked inductivity of 4536 backedges. 509 proven. 526 refuted. 0 times theorem prover too weak. 3501 trivial. 0 not checked. [2022-10-17 16:48:16,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:16,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 51 states and 76 transitions. [2022-10-17 16:48:16,108 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 76 transitions. [2022-10-17 16:48:16,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-10-17 16:48:16,113 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:16,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:16,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2917 backedges. 256 proven. 499 refuted. 0 times theorem prover too weak. 2162 trivial. 0 not checked. [2022-10-17 16:48:16,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:16,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 51 states and 75 transitions. [2022-10-17 16:48:16,614 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 75 transitions. [2022-10-17 16:48:16,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-10-17 16:48:16,619 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:16,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:17,107 INFO L134 CoverageAnalysis]: Checked inductivity of 4113 backedges. 698 proven. 282 refuted. 0 times theorem prover too weak. 3133 trivial. 0 not checked. [2022-10-17 16:48:17,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:17,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 51 states and 72 transitions. [2022-10-17 16:48:17,361 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 72 transitions. [2022-10-17 16:48:17,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-10-17 16:48:17,365 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:17,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:17,628 INFO L134 CoverageAnalysis]: Checked inductivity of 4601 backedges. 605 proven. 182 refuted. 0 times theorem prover too weak. 3814 trivial. 0 not checked. [2022-10-17 16:48:17,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:17,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 51 states and 71 transitions. [2022-10-17 16:48:17,881 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 71 transitions. [2022-10-17 16:48:17,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-10-17 16:48:17,884 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:17,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:18,109 INFO L134 CoverageAnalysis]: Checked inductivity of 3302 backedges. 287 proven. 370 refuted. 0 times theorem prover too weak. 2645 trivial. 0 not checked. [2022-10-17 16:48:18,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:18,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 51 states and 69 transitions. [2022-10-17 16:48:18,364 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 69 transitions. [2022-10-17 16:48:18,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-10-17 16:48:18,370 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:18,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:18,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:18,944 INFO L134 CoverageAnalysis]: Checked inductivity of 6077 backedges. 366 proven. 1068 refuted. 0 times theorem prover too weak. 4643 trivial. 0 not checked. [2022-10-17 16:48:19,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:19,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 51 states and 63 transitions. [2022-10-17 16:48:19,137 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2022-10-17 16:48:19,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-10-17 16:48:19,141 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:19,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:24,158 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 0 proven. 1500 refuted. 0 times theorem prover too weak. 3068 trivial. 0 not checked. [2022-10-17 16:48:32,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:32,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 49 states and 61 transitions. [2022-10-17 16:48:32,921 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2022-10-17 16:48:32,922 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:48:32,922 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 20 iterations. [2022-10-17 16:48:32,932 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 16:48:33,103 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:48:33,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:48:33 ImpRootNode [2022-10-17 16:48:33,107 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:48:33,111 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:48:33,111 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:48:33,111 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:48:33,112 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:48:06" (3/4) ... [2022-10-17 16:48:33,114 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:48:33,121 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo [2022-10-17 16:48:33,125 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-10-17 16:48:33,125 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-10-17 16:48:33,125 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-10-17 16:48:33,125 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:48:33,163 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51a0da7-86c2-4e53-8047-845db1f98b26/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:48:33,163 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:48:33,164 INFO L158 Benchmark]: Toolchain (without parser) took 26920.21ms. Allocated memory was 86.0MB in the beginning and 408.9MB in the end (delta: 323.0MB). Free memory was 49.2MB in the beginning and 341.3MB in the end (delta: -292.0MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2022-10-17 16:48:33,164 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 86.0MB. Free memory was 65.1MB in the beginning and 65.1MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:48:33,168 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.71ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 49.0MB in the beginning and 82.5MB in the end (delta: -33.5MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2022-10-17 16:48:33,169 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.39ms. Allocated memory is still 104.9MB. Free memory was 82.5MB in the beginning and 81.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:48:33,170 INFO L158 Benchmark]: Boogie Preprocessor took 28.46ms. Allocated memory is still 104.9MB. Free memory was 80.8MB in the beginning and 79.9MB in the end (delta: 918.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:48:33,173 INFO L158 Benchmark]: RCFGBuilder took 340.36ms. Allocated memory is still 104.9MB. Free memory was 79.9MB in the beginning and 70.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:48:33,174 INFO L158 Benchmark]: CodeCheck took 26172.72ms. Allocated memory was 104.9MB in the beginning and 408.9MB in the end (delta: 304.1MB). Free memory was 70.2MB in the beginning and 343.4MB in the end (delta: -273.2MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2022-10-17 16:48:33,174 INFO L158 Benchmark]: Witness Printer took 51.97ms. Allocated memory is still 408.9MB. Free memory was 343.4MB in the beginning and 341.3MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 16:48:33,177 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 26.0s, OverallIterations: 20, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2517 SdHoareTripleChecker+Valid, 12.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 939 mSDsluCounter, 2275 SdHoareTripleChecker+Invalid, 10.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1535 mSDsCounter, 2218 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6564 IncrementalHoareTripleChecker+Invalid, 8782 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2218 mSolverCounterUnsat, 740 mSDtfsCounter, 6564 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13017 GetRequests, 12651 SyntacticMatches, 104 SemanticMatches, 262 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34938 ImplicationChecksByTransitivity, 15.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 10.3s InterpolantComputationTime, 3081 NumberOfCodeBlocks, 3081 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3062 ConstructedInterpolants, 0 QuantifiedInterpolants, 4931 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 2 PerfectInterpolantSequences, 38225/45208 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 29]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 86.0MB. Free memory was 65.1MB in the beginning and 65.1MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.71ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 49.0MB in the beginning and 82.5MB in the end (delta: -33.5MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.39ms. Allocated memory is still 104.9MB. Free memory was 82.5MB in the beginning and 81.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.46ms. Allocated memory is still 104.9MB. Free memory was 80.8MB in the beginning and 79.9MB in the end (delta: 918.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 340.36ms. Allocated memory is still 104.9MB. Free memory was 79.9MB in the beginning and 70.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 26172.72ms. Allocated memory was 104.9MB in the beginning and 408.9MB in the end (delta: 304.1MB). Free memory was 70.2MB in the beginning and 343.4MB in the end (delta: -273.2MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. * Witness Printer took 51.97ms. Allocated memory is still 408.9MB. Free memory was 343.4MB in the beginning and 341.3MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:48:33,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51a0da7-86c2-4e53-8047-845db1f98b26/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE