./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_2calls_10-1.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_ef1453f7-b471-4e12-9776-138a0cfa0398/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1453f7-b471-4e12-9776-138a0cfa0398/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_ef1453f7-b471-4e12-9776-138a0cfa0398/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1453f7-b471-4e12-9776-138a0cfa0398/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_2calls_10-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1453f7-b471-4e12-9776-138a0cfa0398/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_ef1453f7-b471-4e12-9776-138a0cfa0398/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 b6366e3b98da5ee88513ec6586b547e61d25aed49a53277f23448bdf367b4562 --- 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 16:52:38,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:52:38,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:52:38,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:52:38,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:52:38,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:52:38,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:52:38,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:52:38,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:52:38,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:52:38,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:52:38,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:52:38,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:52:38,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:52:38,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:52:38,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:52:38,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:52:38,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:52:38,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:52:38,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:52:38,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:52:38,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:52:38,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:52:38,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:52:38,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:52:38,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:52:38,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:52:38,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:52:38,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:52:38,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:52:38,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:52:38,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:52:38,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:52:38,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:52:38,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:52:38,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:52:38,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:52:38,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:52:38,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:52:38,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:52:38,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:52:38,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1453f7-b471-4e12-9776-138a0cfa0398/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:52:38,527 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:52:38,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:52:38,529 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:52:38,530 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:52:38,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:52:38,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:52:38,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:52:38,532 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:52:38,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:52:38,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:52:38,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:52:38,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:52:38,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:52:38,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:52:38,534 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:52:38,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:52:38,535 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:52:38,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:52:38,535 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:52:38,536 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:52:38,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:52:38,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:52:38,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:52:38,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:52:38,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:52:38,537 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:52:38,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:52:38,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:52:38,540 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_ef1453f7-b471-4e12-9776-138a0cfa0398/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1453f7-b471-4e12-9776-138a0cfa0398/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6366e3b98da5ee88513ec6586b547e61d25aed49a53277f23448bdf367b4562 [2022-10-17 16:52:38,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:52:38,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:52:38,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:52:38,856 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:52:38,857 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:52:38,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1453f7-b471-4e12-9776-138a0cfa0398/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/recursive-simple/fibo_2calls_10-1.c [2022-10-17 16:52:38,941 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1453f7-b471-4e12-9776-138a0cfa0398/bin/ukojak-92XMlrwhuB/data/c6ccdf4a0/c742a6cc21ac4665baf78a12f1814abf/FLAGc114c2dc0 [2022-10-17 16:52:39,476 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:52:39,477 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1453f7-b471-4e12-9776-138a0cfa0398/sv-benchmarks/c/recursive-simple/fibo_2calls_10-1.c [2022-10-17 16:52:39,489 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1453f7-b471-4e12-9776-138a0cfa0398/bin/ukojak-92XMlrwhuB/data/c6ccdf4a0/c742a6cc21ac4665baf78a12f1814abf/FLAGc114c2dc0 [2022-10-17 16:52:39,827 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1453f7-b471-4e12-9776-138a0cfa0398/bin/ukojak-92XMlrwhuB/data/c6ccdf4a0/c742a6cc21ac4665baf78a12f1814abf [2022-10-17 16:52:39,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:52:39,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:52:39,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:52:39,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:52:39,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:52:39,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:52:39" (1/1) ... [2022-10-17 16:52:39,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c79f96f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:39, skipping insertion in model container [2022-10-17 16:52:39,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:52:39" (1/1) ... [2022-10-17 16:52:39,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:52:39,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:52:40,058 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_ef1453f7-b471-4e12-9776-138a0cfa0398/sv-benchmarks/c/recursive-simple/fibo_2calls_10-1.c[949,962] [2022-10-17 16:52:40,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:52:40,071 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:52:40,088 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_ef1453f7-b471-4e12-9776-138a0cfa0398/sv-benchmarks/c/recursive-simple/fibo_2calls_10-1.c[949,962] [2022-10-17 16:52:40,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:52:40,103 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:52:40,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:40 WrapperNode [2022-10-17 16:52:40,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:52:40,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:52:40,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:52:40,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:52:40,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:40" (1/1) ... [2022-10-17 16:52:40,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:40" (1/1) ... [2022-10-17 16:52:40,136 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-10-17 16:52:40,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:52:40,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:52:40,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:52:40,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:52:40,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:40" (1/1) ... [2022-10-17 16:52:40,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:40" (1/1) ... [2022-10-17 16:52:40,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:40" (1/1) ... [2022-10-17 16:52:40,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:40" (1/1) ... [2022-10-17 16:52:40,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:40" (1/1) ... [2022-10-17 16:52:40,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:40" (1/1) ... [2022-10-17 16:52:40,155 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:40" (1/1) ... [2022-10-17 16:52:40,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:40" (1/1) ... [2022-10-17 16:52:40,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:52:40,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:52:40,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:52:40,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:52:40,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:40" (1/1) ... [2022-10-17 16:52:40,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:52:40,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1453f7-b471-4e12-9776-138a0cfa0398/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:52:40,202 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1453f7-b471-4e12-9776-138a0cfa0398/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:52:40,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1453f7-b471-4e12-9776-138a0cfa0398/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:52:40,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:52:40,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:52:40,261 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2022-10-17 16:52:40,262 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2022-10-17 16:52:40,262 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2022-10-17 16:52:40,262 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2022-10-17 16:52:40,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:52:40,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:52:40,334 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:52:40,337 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:52:40,528 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:52:40,546 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:52:40,546 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:52:40,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:52:40 BoogieIcfgContainer [2022-10-17 16:52:40,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:52:40,550 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:52:40,550 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:52:40,561 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:52:40,562 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:52:40" (1/1) ... [2022-10-17 16:52:40,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:52:40,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:40,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 33 transitions. [2022-10-17 16:52:40,638 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-10-17 16:52:40,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:52:40,643 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:40,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:40,859 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 16:52:40,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:40,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 37 transitions. [2022-10-17 16:52:40,970 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2022-10-17 16:52:40,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:52:40,971 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:40,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:41,135 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 16:52:41,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:41,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 30 states and 41 transitions. [2022-10-17 16:52:41,259 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2022-10-17 16:52:41,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-17 16:52:41,261 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:41,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:41,477 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:52:41,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:41,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 32 states and 45 transitions. [2022-10-17 16:52:41,736 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2022-10-17 16:52:41,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 16:52:41,738 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:41,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:41,874 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:52:42,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:42,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 39 states and 59 transitions. [2022-10-17 16:52:42,233 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 59 transitions. [2022-10-17 16:52:42,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-17 16:52:42,244 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:42,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:42,423 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:52:42,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:42,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 39 states and 58 transitions. [2022-10-17 16:52:42,631 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 58 transitions. [2022-10-17 16:52:42,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-17 16:52:42,634 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:42,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:42,973 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-17 16:52:43,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:43,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 39 states and 55 transitions. [2022-10-17 16:52:43,491 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2022-10-17 16:52:43,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 16:52:43,492 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:43,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:43,653 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:52:44,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:44,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 49 states and 74 transitions. [2022-10-17 16:52:44,442 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 74 transitions. [2022-10-17 16:52:44,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-17 16:52:44,444 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:44,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:44,542 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-17 16:52:44,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:44,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 49 states and 73 transitions. [2022-10-17 16:52:44,708 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 73 transitions. [2022-10-17 16:52:44,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 16:52:44,709 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:44,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:44,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:45,083 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-17 16:52:46,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:46,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 52 states and 79 transitions. [2022-10-17 16:52:46,191 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 79 transitions. [2022-10-17 16:52:46,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-17 16:52:46,193 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:46,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:46,456 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 9 proven. 62 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-17 16:52:47,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:47,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 62 states and 100 transitions. [2022-10-17 16:52:47,212 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 100 transitions. [2022-10-17 16:52:47,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-10-17 16:52:47,220 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:47,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:47,640 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 44 proven. 193 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2022-10-17 16:52:48,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:48,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 72 states and 124 transitions. [2022-10-17 16:52:48,518 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 124 transitions. [2022-10-17 16:52:48,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-10-17 16:52:48,523 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:48,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:49,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1429 backedges. 72 proven. 370 refuted. 0 times theorem prover too weak. 987 trivial. 0 not checked. [2022-10-17 16:52:50,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:50,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 82 states and 151 transitions. [2022-10-17 16:52:50,081 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 151 transitions. [2022-10-17 16:52:50,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2022-10-17 16:52:50,102 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:50,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:51,542 INFO L134 CoverageAnalysis]: Checked inductivity of 11388 backedges. 211 proven. 1415 refuted. 0 times theorem prover too weak. 9762 trivial. 0 not checked. [2022-10-17 16:52:52,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:52,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 92 states and 181 transitions. [2022-10-17 16:52:52,603 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 181 transitions. [2022-10-17 16:52:52,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-10-17 16:52:52,613 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:52,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:53,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2493 backedges. 254 proven. 527 refuted. 0 times theorem prover too weak. 1712 trivial. 0 not checked. [2022-10-17 16:52:54,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:54,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 94 states and 197 transitions. [2022-10-17 16:52:54,158 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 197 transitions. [2022-10-17 16:52:54,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2022-10-17 16:52:54,178 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:54,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:55,624 INFO L134 CoverageAnalysis]: Checked inductivity of 8577 backedges. 920 proven. 1169 refuted. 0 times theorem prover too weak. 6488 trivial. 0 not checked. [2022-10-17 16:52:56,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:56,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 94 states and 193 transitions. [2022-10-17 16:52:56,157 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 193 transitions. [2022-10-17 16:52:56,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2022-10-17 16:52:56,165 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:56,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:57,117 INFO L134 CoverageAnalysis]: Checked inductivity of 8529 backedges. 316 proven. 1244 refuted. 0 times theorem prover too weak. 6969 trivial. 0 not checked. [2022-10-17 16:52:57,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:57,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 94 states and 192 transitions. [2022-10-17 16:52:57,600 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 192 transitions. [2022-10-17 16:52:57,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2022-10-17 16:52:57,607 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:57,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:58,999 INFO L134 CoverageAnalysis]: Checked inductivity of 14593 backedges. 242 proven. 1861 refuted. 0 times theorem prover too weak. 12490 trivial. 0 not checked. [2022-10-17 16:53:00,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:53:00,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 104 states and 223 transitions. [2022-10-17 16:53:00,151 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 223 transitions. [2022-10-17 16:53:00,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 977 [2022-10-17 16:53:00,179 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:53:00,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:53:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:53:02,476 INFO L134 CoverageAnalysis]: Checked inductivity of 28321 backedges. 743 proven. 2940 refuted. 0 times theorem prover too weak. 24638 trivial. 0 not checked. [2022-10-17 16:53:02,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:53:02,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 104 states and 220 transitions. [2022-10-17 16:53:02,986 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 220 transitions. [2022-10-17 16:53:02,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1059 [2022-10-17 16:53:02,997 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:53:02,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:53:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:53:05,368 INFO L134 CoverageAnalysis]: Checked inductivity of 33392 backedges. 503 proven. 3171 refuted. 0 times theorem prover too weak. 29718 trivial. 0 not checked. [2022-10-17 16:53:06,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:53:06,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 114 states and 254 transitions. [2022-10-17 16:53:06,606 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 254 transitions. [2022-10-17 16:53:06,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1862 [2022-10-17 16:53:06,635 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:53:06,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:53:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat