./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/Fibonacci02.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_774529e5-8fe6-45aa-8d16-7c21640209d7/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774529e5-8fe6-45aa-8d16-7c21640209d7/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_774529e5-8fe6-45aa-8d16-7c21640209d7/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774529e5-8fe6-45aa-8d16-7c21640209d7/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/Fibonacci02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774529e5-8fe6-45aa-8d16-7c21640209d7/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_774529e5-8fe6-45aa-8d16-7c21640209d7/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 b7261cadd839cd02322bb28945f92ad1bd2170c0a65dd385996b5ff81cbb1de7 --- 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 16:31:02,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:31:02,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:31:02,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:31:02,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:31:02,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:31:02,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:31:02,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:31:02,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:31:02,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:31:02,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:31:02,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:31:02,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:31:02,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:31:02,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:31:02,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:31:02,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:31:02,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:31:02,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:31:02,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:31:02,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:31:02,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:31:02,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:31:02,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:31:02,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:31:02,286 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:31:02,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:31:02,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:31:02,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:31:02,290 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:31:02,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:31:02,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:31:02,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:31:02,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:31:02,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:31:02,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:31:02,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:31:02,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:31:02,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:31:02,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:31:02,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:31:02,300 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774529e5-8fe6-45aa-8d16-7c21640209d7/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:31:02,350 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:31:02,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:31:02,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:31:02,352 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:31:02,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:31:02,353 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:31:02,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:31:02,354 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:31:02,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:31:02,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:31:02,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:31:02,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:31:02,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:31:02,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:31:02,363 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:31:02,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:31:02,363 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:31:02,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:31:02,363 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:31:02,364 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:31:02,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:31:02,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:31:02,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:31:02,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:31:02,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:31:02,365 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:31:02,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:31:02,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:31:02,367 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_774529e5-8fe6-45aa-8d16-7c21640209d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774529e5-8fe6-45aa-8d16-7c21640209d7/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7261cadd839cd02322bb28945f92ad1bd2170c0a65dd385996b5ff81cbb1de7 [2022-10-17 16:31:02,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:31:02,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:31:02,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:31:02,708 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:31:02,710 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:31:02,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774529e5-8fe6-45aa-8d16-7c21640209d7/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/recursive/Fibonacci02.c [2022-10-17 16:31:02,784 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774529e5-8fe6-45aa-8d16-7c21640209d7/bin/ukojak-92XMlrwhuB/data/77eb41a76/723b5f446684499a8ab4b7dc38569b8b/FLAG27596f017 [2022-10-17 16:31:03,202 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:31:03,204 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774529e5-8fe6-45aa-8d16-7c21640209d7/sv-benchmarks/c/recursive/Fibonacci02.c [2022-10-17 16:31:03,210 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774529e5-8fe6-45aa-8d16-7c21640209d7/bin/ukojak-92XMlrwhuB/data/77eb41a76/723b5f446684499a8ab4b7dc38569b8b/FLAG27596f017 [2022-10-17 16:31:03,582 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774529e5-8fe6-45aa-8d16-7c21640209d7/bin/ukojak-92XMlrwhuB/data/77eb41a76/723b5f446684499a8ab4b7dc38569b8b [2022-10-17 16:31:03,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:31:03,585 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:31:03,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:31:03,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:31:03,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:31:03,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:31:03" (1/1) ... [2022-10-17 16:31:03,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b90b505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:03, skipping insertion in model container [2022-10-17 16:31:03,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:31:03" (1/1) ... [2022-10-17 16:31:03,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:31:03,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:31:03,773 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_774529e5-8fe6-45aa-8d16-7c21640209d7/sv-benchmarks/c/recursive/Fibonacci02.c[715,728] [2022-10-17 16:31:03,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:31:03,787 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:31:03,802 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_774529e5-8fe6-45aa-8d16-7c21640209d7/sv-benchmarks/c/recursive/Fibonacci02.c[715,728] [2022-10-17 16:31:03,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:31:03,855 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:31:03,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:03 WrapperNode [2022-10-17 16:31:03,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:31:03,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:31:03,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:31:03,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:31:03,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:03" (1/1) ... [2022-10-17 16:31:03,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:03" (1/1) ... [2022-10-17 16:31:03,924 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-10-17 16:31:03,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:31:03,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:31:03,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:31:03,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:31:03,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:03" (1/1) ... [2022-10-17 16:31:03,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:03" (1/1) ... [2022-10-17 16:31:03,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:03" (1/1) ... [2022-10-17 16:31:03,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:03" (1/1) ... [2022-10-17 16:31:03,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:03" (1/1) ... [2022-10-17 16:31:03,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:03" (1/1) ... [2022-10-17 16:31:03,950 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:03" (1/1) ... [2022-10-17 16:31:03,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:03" (1/1) ... [2022-10-17 16:31:03,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:31:03,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:31:03,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:31:03,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:31:03,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:31:03" (1/1) ... [2022-10-17 16:31:03,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:31:03,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774529e5-8fe6-45aa-8d16-7c21640209d7/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:31:03,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774529e5-8fe6-45aa-8d16-7c21640209d7/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:31:04,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_774529e5-8fe6-45aa-8d16-7c21640209d7/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:31:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2022-10-17 16:31:04,037 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2022-10-17 16:31:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:31:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:31:04,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:31:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:31:04,098 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:31:04,100 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:31:04,212 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:31:04,228 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:31:04,229 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:31:04,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:31:04 BoogieIcfgContainer [2022-10-17 16:31:04,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:31:04,233 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:31:04,233 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:31:04,245 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:31:04,245 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:31:04" (1/1) ... [2022-10-17 16:31:04,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:31:04,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:04,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2022-10-17 16:31:04,317 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-10-17 16:31:04,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:31:04,322 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:04,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:04,548 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 16:31:04,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:04,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 25 transitions. [2022-10-17 16:31:04,679 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2022-10-17 16:31:04,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:31:04,680 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:04,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:04,826 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 16:31:04,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:04,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 21 states and 29 transitions. [2022-10-17 16:31:04,959 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2022-10-17 16:31:04,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-17 16:31:04,960 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:04,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:05,258 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 16:31:05,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:05,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 21 states and 28 transitions. [2022-10-17 16:31:05,371 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2022-10-17 16:31:05,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 16:31:05,372 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:05,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:05,509 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 16:31:05,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:05,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 26 states and 40 transitions. [2022-10-17 16:31:05,751 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2022-10-17 16:31:05,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-17 16:31:05,757 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:05,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:06,099 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 16:31:06,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:06,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 29 states and 47 transitions. [2022-10-17 16:31:06,566 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2022-10-17 16:31:06,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 16:31:06,568 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:06,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:06,691 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 16:31:06,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:06,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 34 states and 62 transitions. [2022-10-17 16:31:06,948 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 62 transitions. [2022-10-17 16:31:06,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 16:31:06,952 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:06,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:07,137 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 16:31:07,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:07,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 34 states and 61 transitions. [2022-10-17 16:31:07,415 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 61 transitions. [2022-10-17 16:31:07,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-17 16:31:07,418 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:07,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:07,554 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 16:31:07,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:07,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 39 states and 78 transitions. [2022-10-17 16:31:07,877 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 78 transitions. [2022-10-17 16:31:07,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-17 16:31:07,891 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:07,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:08,205 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 16:31:08,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:08,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 44 states and 98 transitions. [2022-10-17 16:31:08,505 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 98 transitions. [2022-10-17 16:31:08,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-10-17 16:31:08,511 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:08,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:09,017 INFO L134 CoverageAnalysis]: Checked inductivity of 3330 backedges. 153 proven. 807 refuted. 0 times theorem prover too weak. 2370 trivial. 0 not checked. [2022-10-17 16:31:09,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:09,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 49 states and 121 transitions. [2022-10-17 16:31:09,390 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 121 transitions. [2022-10-17 16:31:09,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2022-10-17 16:31:09,396 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:09,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:10,452 INFO L134 CoverageAnalysis]: Checked inductivity of 7758 backedges. 268 proven. 1524 refuted. 0 times theorem prover too weak. 5966 trivial. 0 not checked. [2022-10-17 16:31:10,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:10,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 54 states and 147 transitions. [2022-10-17 16:31:10,861 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 147 transitions. [2022-10-17 16:31:10,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-10-17 16:31:10,867 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:10,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:11,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3330 backedges. 606 proven. 472 refuted. 0 times theorem prover too weak. 2252 trivial. 0 not checked. [2022-10-17 16:31:11,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:11,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 56 states and 147 transitions. [2022-10-17 16:31:11,915 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 147 transitions. [2022-10-17 16:31:11,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-10-17 16:31:11,920 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:11,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:12,233 INFO L134 CoverageAnalysis]: Checked inductivity of 3275 backedges. 287 proven. 661 refuted. 0 times theorem prover too weak. 2327 trivial. 0 not checked. [2022-10-17 16:31:12,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:12,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 56 states and 146 transitions. [2022-10-17 16:31:12,474 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 146 transitions. [2022-10-17 16:31:12,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2022-10-17 16:31:12,481 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:12,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:13,095 INFO L134 CoverageAnalysis]: Checked inductivity of 8334 backedges. 613 proven. 1084 refuted. 0 times theorem prover too weak. 6637 trivial. 0 not checked. [2022-10-17 16:31:13,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:13,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 58 states and 146 transitions. [2022-10-17 16:31:13,628 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 146 transitions. [2022-10-17 16:31:13,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2022-10-17 16:31:13,642 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:13,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:14,705 INFO L134 CoverageAnalysis]: Checked inductivity of 20070 backedges. 696 proven. 2699 refuted. 0 times theorem prover too weak. 16675 trivial. 0 not checked. [2022-10-17 16:31:15,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:15,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 58 states and 144 transitions. [2022-10-17 16:31:15,004 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 144 transitions. [2022-10-17 16:31:15,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2022-10-17 16:31:15,015 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:15,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:15,968 INFO L134 CoverageAnalysis]: Checked inductivity of 16407 backedges. 421 proven. 2654 refuted. 0 times theorem prover too weak. 13332 trivial. 0 not checked. [2022-10-17 16:31:16,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:16,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 63 states and 171 transitions. [2022-10-17 16:31:16,407 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 171 transitions. [2022-10-17 16:31:16,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2022-10-17 16:31:16,472 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:16,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:18,882 INFO L134 CoverageAnalysis]: Checked inductivity of 57222 backedges. 1299 proven. 4233 refuted. 0 times theorem prover too weak. 51690 trivial. 0 not checked. [2022-10-17 16:31:20,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:20,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 61 states and 104 transitions. [2022-10-17 16:31:20,262 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 104 transitions. [2022-10-17 16:31:20,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2022-10-17 16:31:20,265 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:20,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:21,006 INFO L134 CoverageAnalysis]: Checked inductivity of 8290 backedges. 1264 proven. 789 refuted. 0 times theorem prover too weak. 6237 trivial. 0 not checked. [2022-10-17 16:31:21,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:21,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 61 states and 103 transitions. [2022-10-17 16:31:21,378 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 103 transitions. [2022-10-17 16:31:21,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 855 [2022-10-17 16:31:21,386 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:21,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:21,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:23,134 INFO L134 CoverageAnalysis]: Checked inductivity of 43614 backedges. 2099 proven. 2698 refuted. 0 times theorem prover too weak. 38817 trivial. 0 not checked. [2022-10-17 16:31:23,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:23,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 61 states and 99 transitions. [2022-10-17 16:31:23,416 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 99 transitions. [2022-10-17 16:31:23,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2022-10-17 16:31:23,420 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:23,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:24,364 INFO L134 CoverageAnalysis]: Checked inductivity of 18160 backedges. 1290 proven. 2096 refuted. 0 times theorem prover too weak. 14774 trivial. 0 not checked. [2022-10-17 16:31:24,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:24,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 61 states and 98 transitions. [2022-10-17 16:31:24,664 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 98 transitions. [2022-10-17 16:31:24,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2022-10-17 16:31:24,669 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:24,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:25,542 INFO L134 CoverageAnalysis]: Checked inductivity of 26139 backedges. 960 proven. 2028 refuted. 0 times theorem prover too weak. 23151 trivial. 0 not checked. [2022-10-17 16:31:25,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:25,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 61 states and 97 transitions. [2022-10-17 16:31:25,823 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 97 transitions. [2022-10-17 16:31:25,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2022-10-17 16:31:25,829 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:25,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:27,165 INFO L134 CoverageAnalysis]: Checked inductivity of 29515 backedges. 1448 proven. 2453 refuted. 0 times theorem prover too weak. 25614 trivial. 0 not checked. [2022-10-17 16:31:27,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:27,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 61 states and 92 transitions. [2022-10-17 16:31:27,454 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 92 transitions. [2022-10-17 16:31:27,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2022-10-17 16:31:27,458 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:27,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:28,484 INFO L134 CoverageAnalysis]: Checked inductivity of 14743 backedges. 2186 proven. 1318 refuted. 0 times theorem prover too weak. 11239 trivial. 0 not checked. [2022-10-17 16:31:28,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:28,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 61 states and 91 transitions. [2022-10-17 16:31:28,853 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 91 transitions. [2022-10-17 16:31:28,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 787 [2022-10-17 16:31:28,860 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:28,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat