./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_20-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2149654-57c3-471c-be64-d8d6319ead53/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2149654-57c3-471c-be64-d8d6319ead53/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2149654-57c3-471c-be64-d8d6319ead53/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2149654-57c3-471c-be64-d8d6319ead53/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_20-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2149654-57c3-471c-be64-d8d6319ead53/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2149654-57c3-471c-be64-d8d6319ead53/bin/ukojak-LBtLqBUTdQ --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 245fc9fd7d1856b9e3a0ba83da5d44244f493f3972910f1b254ef4afd37f84e2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:26:03,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:26:03,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:26:03,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:26:03,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:26:03,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:26:03,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:26:03,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:26:03,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:26:03,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:26:03,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:26:03,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:26:03,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:26:03,325 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:26:03,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:26:03,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:26:03,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:26:03,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:26:03,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:26:03,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:26:03,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:26:03,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:26:03,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:26:03,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:26:03,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:26:03,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:26:03,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:26:03,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:26:03,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:26:03,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:26:03,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:26:03,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:26:03,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:26:03,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:26:03,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:26:03,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:26:03,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:26:03,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:26:03,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:26:03,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:26:03,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:26:03,367 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2149654-57c3-471c-be64-d8d6319ead53/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:26:03,416 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:26:03,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:26:03,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:26:03,421 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:26:03,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:26:03,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:26:03,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:26:03,429 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:26:03,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:26:03,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:26:03,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:26:03,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:26:03,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:26:03,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:26:03,432 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:26:03,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:26:03,433 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:26:03,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:26:03,433 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:26:03,433 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:26:03,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:26:03,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:26:03,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:26:03,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:26:03,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:26:03,435 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:26:03,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:26:03,436 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:26:03,436 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_e2149654-57c3-471c-be64-d8d6319ead53/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2149654-57c3-471c-be64-d8d6319ead53/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 245fc9fd7d1856b9e3a0ba83da5d44244f493f3972910f1b254ef4afd37f84e2 [2021-11-23 00:26:03,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:26:03,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:26:03,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:26:03,838 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:26:03,840 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:26:03,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2149654-57c3-471c-be64-d8d6319ead53/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/recursive-simple/fibo_20-2.c [2021-11-23 00:26:03,909 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2149654-57c3-471c-be64-d8d6319ead53/bin/ukojak-LBtLqBUTdQ/data/38e09a957/7592d7487e2c4a7ba893202edcb403bf/FLAG93769133c [2021-11-23 00:26:04,413 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:26:04,415 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2149654-57c3-471c-be64-d8d6319ead53/sv-benchmarks/c/recursive-simple/fibo_20-2.c [2021-11-23 00:26:04,427 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2149654-57c3-471c-be64-d8d6319ead53/bin/ukojak-LBtLqBUTdQ/data/38e09a957/7592d7487e2c4a7ba893202edcb403bf/FLAG93769133c [2021-11-23 00:26:04,780 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2149654-57c3-471c-be64-d8d6319ead53/bin/ukojak-LBtLqBUTdQ/data/38e09a957/7592d7487e2c4a7ba893202edcb403bf [2021-11-23 00:26:04,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:26:04,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:26:04,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:26:04,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:26:04,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:26:04,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:26:04" (1/1) ... [2021-11-23 00:26:04,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c8a6e0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:04, skipping insertion in model container [2021-11-23 00:26:04,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:26:04" (1/1) ... [2021-11-23 00:26:04,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:26:04,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:26:05,061 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_e2149654-57c3-471c-be64-d8d6319ead53/sv-benchmarks/c/recursive-simple/fibo_20-2.c[745,758] [2021-11-23 00:26:05,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:26:05,074 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:26:05,094 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_e2149654-57c3-471c-be64-d8d6319ead53/sv-benchmarks/c/recursive-simple/fibo_20-2.c[745,758] [2021-11-23 00:26:05,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:26:05,112 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:26:05,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:05 WrapperNode [2021-11-23 00:26:05,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:26:05,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:26:05,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:26:05,118 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:26:05,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:05" (1/1) ... [2021-11-23 00:26:05,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:05" (1/1) ... [2021-11-23 00:26:05,156 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2021-11-23 00:26:05,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:26:05,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:26:05,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:26:05,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:26:05,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:05" (1/1) ... [2021-11-23 00:26:05,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:05" (1/1) ... [2021-11-23 00:26:05,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:05" (1/1) ... [2021-11-23 00:26:05,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:05" (1/1) ... [2021-11-23 00:26:05,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:05" (1/1) ... [2021-11-23 00:26:05,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:05" (1/1) ... [2021-11-23 00:26:05,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:05" (1/1) ... [2021-11-23 00:26:05,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:26:05,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:26:05,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:26:05,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:26:05,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:05" (1/1) ... [2021-11-23 00:26:05,186 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:26:05,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2149654-57c3-471c-be64-d8d6319ead53/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:26:05,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2149654-57c3-471c-be64-d8d6319ead53/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:26:05,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2149654-57c3-471c-be64-d8d6319ead53/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:26:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:26:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:26:05,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:26:05,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:26:05,262 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2021-11-23 00:26:05,262 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2021-11-23 00:26:05,329 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:26:05,330 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:26:05,442 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:26:05,468 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:26:05,472 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 00:26:05,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:26:05 BoogieIcfgContainer [2021-11-23 00:26:05,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:26:05,475 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:26:05,475 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:26:05,487 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:26:05,487 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:26:05" (1/1) ... [2021-11-23 00:26:05,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:26:05,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:05,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2021-11-23 00:26:05,555 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2021-11-23 00:26:05,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:26:05,560 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:05,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:05,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:26:05,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:05,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 25 transitions. [2021-11-23 00:26:05,874 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2021-11-23 00:26:05,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 00:26:05,875 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:05,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:05,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:26:06,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:06,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 21 states and 29 transitions. [2021-11-23 00:26:06,104 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2021-11-23 00:26:06,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 00:26:06,106 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:06,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:06,225 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:26:06,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:06,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 21 states and 28 transitions. [2021-11-23 00:26:06,368 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2021-11-23 00:26:06,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 00:26:06,369 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:06,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:06,437 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 00:26:06,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:06,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 26 states and 40 transitions. [2021-11-23 00:26:06,644 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2021-11-23 00:26:06,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 00:26:06,646 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:06,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:06,898 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-23 00:26:07,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:07,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 29 states and 47 transitions. [2021-11-23 00:26:07,396 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2021-11-23 00:26:07,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 00:26:07,399 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:07,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:07,516 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 00:26:07,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:07,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 34 states and 62 transitions. [2021-11-23 00:26:07,779 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 62 transitions. [2021-11-23 00:26:07,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 00:26:07,782 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:07,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:07,956 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 47 proven. 28 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 00:26:08,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:08,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 34 states and 61 transitions. [2021-11-23 00:26:08,256 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 61 transitions. [2021-11-23 00:26:08,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 00:26:08,260 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:08,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:08,368 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 17 proven. 88 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-23 00:26:08,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:08,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 39 states and 78 transitions. [2021-11-23 00:26:08,677 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 78 transitions. [2021-11-23 00:26:08,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-23 00:26:08,684 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:08,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:08,850 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 54 proven. 273 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-11-23 00:26:09,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:09,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 44 states and 98 transitions. [2021-11-23 00:26:09,172 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 98 transitions. [2021-11-23 00:26:09,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-23 00:26:09,176 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:09,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:09,410 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 193 proven. 204 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2021-11-23 00:26:09,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:09,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 44 states and 97 transitions. [2021-11-23 00:26:09,668 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 97 transitions. [2021-11-23 00:26:09,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2021-11-23 00:26:09,675 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:09,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:09,986 INFO L134 CoverageAnalysis]: Checked inductivity of 6077 backedges. 183 proven. 1173 refuted. 0 times theorem prover too weak. 4721 trivial. 0 not checked. [2021-11-23 00:26:10,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:10,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 49 states and 120 transitions. [2021-11-23 00:26:10,355 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 120 transitions. [2021-11-23 00:26:10,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-23 00:26:10,359 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:10,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:10,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1385 backedges. 329 proven. 341 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2021-11-23 00:26:10,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:10,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 49 states and 119 transitions. [2021-11-23 00:26:10,803 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 119 transitions. [2021-11-23 00:26:10,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2021-11-23 00:26:10,812 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:10,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:11,112 INFO L134 CoverageAnalysis]: Checked inductivity of 14031 backedges. 376 proven. 2115 refuted. 0 times theorem prover too weak. 11540 trivial. 0 not checked. [2021-11-23 00:26:11,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:11,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 54 states and 145 transitions. [2021-11-23 00:26:11,487 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 145 transitions. [2021-11-23 00:26:11,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 981 [2021-11-23 00:26:11,523 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:11,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:12,100 INFO L134 CoverageAnalysis]: Checked inductivity of 57573 backedges. 705 proven. 5334 refuted. 0 times theorem prover too weak. 51534 trivial. 0 not checked. [2021-11-23 00:26:12,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:12,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 59 states and 174 transitions. [2021-11-23 00:26:12,531 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 174 transitions. [2021-11-23 00:26:12,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 653 [2021-11-23 00:26:12,552 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:12,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:13,004 INFO L134 CoverageAnalysis]: Checked inductivity of 25265 backedges. 2191 proven. 2043 refuted. 0 times theorem prover too weak. 21031 trivial. 0 not checked. [2021-11-23 00:26:13,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:13,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 61 states and 172 transitions. [2021-11-23 00:26:13,604 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 172 transitions. [2021-11-23 00:26:13,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-11-23 00:26:13,615 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:13,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:13,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:13,834 INFO L134 CoverageAnalysis]: Checked inductivity of 11735 backedges. 592 proven. 2112 refuted. 0 times theorem prover too weak. 9031 trivial. 0 not checked. [2021-11-23 00:26:14,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:14,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 63 states and 174 transitions. [2021-11-23 00:26:14,109 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 174 transitions. [2021-11-23 00:26:14,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2021-11-23 00:26:14,117 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:14,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:14,598 INFO L134 CoverageAnalysis]: Checked inductivity of 34365 backedges. 1776 proven. 4651 refuted. 0 times theorem prover too weak. 27938 trivial. 0 not checked. [2021-11-23 00:26:14,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:14,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 63 states and 170 transitions. [2021-11-23 00:26:14,977 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 170 transitions. [2021-11-23 00:26:14,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2021-11-23 00:26:14,983 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:14,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:15,177 INFO L134 CoverageAnalysis]: Checked inductivity of 13973 backedges. 730 proven. 1412 refuted. 0 times theorem prover too weak. 11831 trivial. 0 not checked. [2021-11-23 00:26:15,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:15,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 63 states and 167 transitions. [2021-11-23 00:26:15,424 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 167 transitions. [2021-11-23 00:26:15,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2021-11-23 00:26:15,432 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:15,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:16,046 INFO L134 CoverageAnalysis]: Checked inductivity of 39393 backedges. 3311 proven. 4415 refuted. 0 times theorem prover too weak. 31667 trivial. 0 not checked. [2021-11-23 00:26:16,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:16,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 63 states and 166 transitions. [2021-11-23 00:26:16,432 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 166 transitions. [2021-11-23 00:26:16,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 897 [2021-11-23 00:26:16,441 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:16,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:16,818 INFO L134 CoverageAnalysis]: Checked inductivity of 48051 backedges. 935 proven. 3872 refuted. 0 times theorem prover too weak. 43244 trivial. 0 not checked. [2021-11-23 00:26:17,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:17,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 63 states and 165 transitions. [2021-11-23 00:26:17,078 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 165 transitions. [2021-11-23 00:26:17,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2021-11-23 00:26:17,088 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:17,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:17,526 INFO L134 CoverageAnalysis]: Checked inductivity of 46444 backedges. 779 proven. 5264 refuted. 0 times theorem prover too weak. 40401 trivial. 0 not checked. [2021-11-23 00:26:17,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:17,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 68 states and 192 transitions. [2021-11-23 00:26:17,999 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 192 transitions. [2021-11-23 00:26:18,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1629 [2021-11-23 00:26:18,040 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:18,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:19,229 INFO L134 CoverageAnalysis]: Checked inductivity of 159993 backedges. 7857 proven. 10919 refuted. 0 times theorem prover too weak. 141217 trivial. 0 not checked. [2021-11-23 00:26:19,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:19,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 68 states and 191 transitions. [2021-11-23 00:26:19,686 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 191 transitions. [2021-11-23 00:26:19,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2037 [2021-11-23 00:26:19,736 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:19,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:21,148 INFO L134 CoverageAnalysis]: Checked inductivity of 250749 backedges. 1777 proven. 14421 refuted. 0 times theorem prover too weak. 234551 trivial. 0 not checked. [2021-11-23 00:26:21,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:21,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 73 states and 220 transitions. [2021-11-23 00:26:21,698 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 220 transitions. [2021-11-23 00:26:21,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3397 [2021-11-23 00:26:21,795 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:21,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:24,525 INFO L134 CoverageAnalysis]: Checked inductivity of 699909 backedges. 3447 proven. 26730 refuted. 0 times theorem prover too weak. 669732 trivial. 0 not checked. [2021-11-23 00:26:25,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:25,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 78 states and 252 transitions. [2021-11-23 00:26:25,143 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 252 transitions. [2021-11-23 00:26:25,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2717 [2021-11-23 00:26:25,250 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:25,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:26,921 INFO L134 CoverageAnalysis]: Checked inductivity of 447129 backedges. 4243 proven. 21529 refuted. 0 times theorem prover too weak. 421357 trivial. 0 not checked. [2021-11-23 00:26:27,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:27,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 80 states and 254 transitions. [2021-11-23 00:26:27,338 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 254 transitions. [2021-11-23 00:26:27,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2857 [2021-11-23 00:26:27,430 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:27,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:29,697 INFO L134 CoverageAnalysis]: Checked inductivity of 494519 backedges. 21773 proven. 11944 refuted. 0 times theorem prover too weak. 460802 trivial. 0 not checked. [2021-11-23 00:26:30,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:30,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 82 states and 255 transitions. [2021-11-23 00:26:30,544 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 255 transitions. [2021-11-23 00:26:30,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3143 [2021-11-23 00:26:30,660 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:30,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:33,304 INFO L134 CoverageAnalysis]: Checked inductivity of 598838 backedges. 19186 proven. 28101 refuted. 0 times theorem prover too weak. 551551 trivial. 0 not checked. [2021-11-23 00:26:33,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:33,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 82 states and 254 transitions. [2021-11-23 00:26:33,834 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 254 transitions. [2021-11-23 00:26:33,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3714 [2021-11-23 00:26:33,932 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:33,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:36,983 INFO L134 CoverageAnalysis]: Checked inductivity of 836964 backedges. 13458 proven. 38537 refuted. 0 times theorem prover too weak. 784969 trivial. 0 not checked. [2021-11-23 00:26:37,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:37,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 82 states and 253 transitions. [2021-11-23 00:26:37,436 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 253 transitions. [2021-11-23 00:26:37,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5307 [2021-11-23 00:26:37,655 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:37,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:42,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1711494 backedges. 4969 proven. 46976 refuted. 0 times theorem prover too weak. 1659549 trivial. 0 not checked. [2021-11-23 00:26:43,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:43,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 87 states and 286 transitions. [2021-11-23 00:26:43,202 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 286 transitions. [2021-11-23 00:26:43,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9201 [2021-11-23 00:26:43,886 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:43,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:55,046 INFO L134 CoverageAnalysis]: Checked inductivity of 5152195 backedges. 12926 proven. 93584 refuted. 0 times theorem prover too weak. 5045685 trivial. 0 not checked. [2021-11-23 00:26:55,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:55,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 87 states and 286 transitions. [2021-11-23 00:26:55,315 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 286 transitions. [2021-11-23 00:26:55,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5553 [2021-11-23 00:26:55,640 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:55,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:27:01,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1874115 backedges. 38659 proven. 55267 refuted. 0 times theorem prover too weak. 1780189 trivial. 0 not checked. [2021-11-23 00:27:02,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:27:02,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 87 states and 285 transitions. [2021-11-23 00:27:02,451 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 285 transitions. [2021-11-23 00:27:02,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8493 [2021-11-23 00:27:02,901 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:27:02,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:27:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:27:13,953 INFO L134 CoverageAnalysis]: Checked inductivity of 4389057 backedges. 8895 proven. 81835 refuted. 0 times theorem prover too weak. 4298327 trivial. 0 not checked. [2021-11-23 00:27:14,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:27:14,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 92 states and 320 transitions. [2021-11-23 00:27:14,528 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 320 transitions. [2021-11-23 00:27:15,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11148 [2021-11-23 00:27:15,188 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:27:15,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:27:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:27:30,794 INFO L134 CoverageAnalysis]: Checked inductivity of 7566057 backedges. 13362 proven. 123109 refuted. 0 times theorem prover too weak. 7429586 trivial. 0 not checked. [2021-11-23 00:27:31,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:27:31,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 94 states and 322 transitions. [2021-11-23 00:27:31,191 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 322 transitions. [2021-11-23 00:27:31,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9720 [2021-11-23 00:27:31,653 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:27:31,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:27:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:27:48,955 INFO L134 CoverageAnalysis]: Checked inductivity of 5750397 backedges. 71195 proven. 110921 refuted. 0 times theorem prover too weak. 5568281 trivial. 0 not checked. [2021-11-23 00:27:49,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:27:49,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 94 states and 321 transitions. [2021-11-23 00:27:49,470 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 321 transitions. [2021-11-23 00:27:50,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13725 [2021-11-23 00:27:50,594 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:27:50,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:28:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:28:17,739 INFO L134 CoverageAnalysis]: Checked inductivity of 11471769 backedges. 14588 proven. 144196 refuted. 0 times theorem prover too weak. 11312985 trivial. 0 not checked. [2021-11-23 00:28:18,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:28:18,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 99 states and 358 transitions. [2021-11-23 00:28:18,345 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 358 transitions. [2021-11-23 00:28:20,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18177 [2021-11-23 00:28:20,152 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:28:20,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:28:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:29:11,316 INFO L134 CoverageAnalysis]: Checked inductivity of 20127789 backedges. 20152 proven. 205841 refuted. 0 times theorem prover too weak. 19901796 trivial. 0 not checked. [2021-11-23 00:29:11,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:29:11,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 104 states and 398 transitions. [2021-11-23 00:29:11,988 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 398 transitions. [2021-11-23 00:29:19,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41181 [2021-11-23 00:29:19,834 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:29:19,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:30:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:28,099 INFO L134 CoverageAnalysis]: Checked inductivity of 103369401 backedges. 55432 proven. 542926 refuted. 0 times theorem prover too weak. 102771043 trivial. 0 not checked. [2021-11-23 00:32:28,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:28,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 106 states and 400 transitions. [2021-11-23 00:32:28,721 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 400 transitions. [2021-11-23 00:32:34,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33333 [2021-11-23 00:32:34,399 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:34,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms