./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_2calls_15-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13a27491-2f03-4ef1-a25a-d367bb31663c/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13a27491-2f03-4ef1-a25a-d367bb31663c/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_13a27491-2f03-4ef1-a25a-d367bb31663c/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13a27491-2f03-4ef1-a25a-d367bb31663c/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_2calls_15-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13a27491-2f03-4ef1-a25a-d367bb31663c/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_13a27491-2f03-4ef1-a25a-d367bb31663c/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 532954920d93df80ec8903cd7069d46bd3e41c8f10c6c2a8e6416a137735480b --- 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 16:41:50,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:41:50,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:41:50,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:41:50,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:41:50,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:41:50,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:41:50,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:41:50,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:41:50,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:41:50,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:41:50,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:41:50,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:41:50,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:41:50,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:41:50,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:41:50,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:41:50,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:41:50,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:41:50,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:41:50,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:41:50,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:41:50,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:41:50,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:41:50,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:41:50,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:41:50,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:41:50,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:41:50,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:41:50,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:41:50,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:41:50,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:41:50,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:41:50,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:41:50,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:41:50,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:41:50,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:41:50,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:41:50,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:41:50,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:41:50,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:41:50,291 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13a27491-2f03-4ef1-a25a-d367bb31663c/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:41:50,348 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:41:50,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:41:50,349 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:41:50,349 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:41:50,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:41:50,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:41:50,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:41:50,351 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:41:50,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:41:50,351 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:41:50,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:41:50,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:41:50,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:41:50,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:41:50,353 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:41:50,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:41:50,354 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:41:50,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:41:50,354 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:41:50,354 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:41:50,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:41:50,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:41:50,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:41:50,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:41:50,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:41:50,356 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:41:50,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:41:50,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:41:50,356 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_13a27491-2f03-4ef1-a25a-d367bb31663c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13a27491-2f03-4ef1-a25a-d367bb31663c/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 532954920d93df80ec8903cd7069d46bd3e41c8f10c6c2a8e6416a137735480b [2022-10-17 16:41:50,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:41:50,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:41:50,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:41:50,641 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:41:50,642 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:41:50,644 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13a27491-2f03-4ef1-a25a-d367bb31663c/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/recursive-simple/fibo_2calls_15-1.c [2022-10-17 16:41:50,727 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13a27491-2f03-4ef1-a25a-d367bb31663c/bin/ukojak-92XMlrwhuB/data/a538b669d/71628de60e204d69be4825a02f648974/FLAG823c650ba [2022-10-17 16:41:51,188 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:41:51,192 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13a27491-2f03-4ef1-a25a-d367bb31663c/sv-benchmarks/c/recursive-simple/fibo_2calls_15-1.c [2022-10-17 16:41:51,200 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13a27491-2f03-4ef1-a25a-d367bb31663c/bin/ukojak-92XMlrwhuB/data/a538b669d/71628de60e204d69be4825a02f648974/FLAG823c650ba [2022-10-17 16:41:51,562 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13a27491-2f03-4ef1-a25a-d367bb31663c/bin/ukojak-92XMlrwhuB/data/a538b669d/71628de60e204d69be4825a02f648974 [2022-10-17 16:41:51,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:41:51,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:41:51,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:41:51,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:41:51,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:41:51,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:41:51" (1/1) ... [2022-10-17 16:41:51,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538ffbd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:51, skipping insertion in model container [2022-10-17 16:41:51,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:41:51" (1/1) ... [2022-10-17 16:41:51,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:41:51,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:41:51,763 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_13a27491-2f03-4ef1-a25a-d367bb31663c/sv-benchmarks/c/recursive-simple/fibo_2calls_15-1.c[950,963] [2022-10-17 16:41:51,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:41:51,775 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:41:51,792 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_13a27491-2f03-4ef1-a25a-d367bb31663c/sv-benchmarks/c/recursive-simple/fibo_2calls_15-1.c[950,963] [2022-10-17 16:41:51,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:41:51,806 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:41:51,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:51 WrapperNode [2022-10-17 16:41:51,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:41:51,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:41:51,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:41:51,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:41:51,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:51" (1/1) ... [2022-10-17 16:41:51,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:51" (1/1) ... [2022-10-17 16:41:51,840 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-10-17 16:41:51,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:41:51,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:41:51,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:41:51,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:41:51,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:51" (1/1) ... [2022-10-17 16:41:51,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:51" (1/1) ... [2022-10-17 16:41:51,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:51" (1/1) ... [2022-10-17 16:41:51,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:51" (1/1) ... [2022-10-17 16:41:51,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:51" (1/1) ... [2022-10-17 16:41:51,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:51" (1/1) ... [2022-10-17 16:41:51,871 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:51" (1/1) ... [2022-10-17 16:41:51,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:51" (1/1) ... [2022-10-17 16:41:51,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:41:51,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:41:51,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:41:51,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:41:51,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:51" (1/1) ... [2022-10-17 16:41:51,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:41:51,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13a27491-2f03-4ef1-a25a-d367bb31663c/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:41:51,911 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13a27491-2f03-4ef1-a25a-d367bb31663c/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:41:51,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13a27491-2f03-4ef1-a25a-d367bb31663c/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:41:51,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:41:51,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:41:51,968 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2022-10-17 16:41:51,969 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2022-10-17 16:41:51,969 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2022-10-17 16:41:51,969 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2022-10-17 16:41:51,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:41:51,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:41:52,039 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:41:52,041 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:41:52,242 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:41:52,259 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:41:52,259 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:41:52,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:41:52 BoogieIcfgContainer [2022-10-17 16:41:52,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:41:52,263 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:41:52,263 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:41:52,274 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:41:52,274 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:41:52" (1/1) ... [2022-10-17 16:41:52,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:41:52,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:52,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 33 transitions. [2022-10-17 16:41:52,387 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-10-17 16:41:52,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:41:52,393 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:52,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:52,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:52,753 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 16:41:52,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:52,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 30 states and 39 transitions. [2022-10-17 16:41:52,857 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2022-10-17 16:41:52,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:41:52,858 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:52,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:52,959 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 16:41:53,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:53,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 34 states and 46 transitions. [2022-10-17 16:41:53,123 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2022-10-17 16:41:53,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-17 16:41:53,125 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:53,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:53,297 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:41:53,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:53,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 36 states and 50 transitions. [2022-10-17 16:41:53,408 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2022-10-17 16:41:53,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 16:41:53,409 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:53,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:53,713 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:41:54,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:54,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 43 states and 66 transitions. [2022-10-17 16:41:54,412 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 66 transitions. [2022-10-17 16:41:54,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-17 16:41:54,415 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:54,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:54,599 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:41:54,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:55,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 45 states and 69 transitions. [2022-10-17 16:41:55,000 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 69 transitions. [2022-10-17 16:41:55,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-17 16:41:55,003 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:55,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:55,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:55,394 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-17 16:41:56,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:56,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 45 states and 66 transitions. [2022-10-17 16:41:56,072 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 66 transitions. [2022-10-17 16:41:56,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 16:41:56,074 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:56,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:56,326 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:41:57,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:57,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 57 states and 95 transitions. [2022-10-17 16:41:57,704 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 95 transitions. [2022-10-17 16:41:57,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-17 16:41:57,708 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:57,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:57,807 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-17 16:41:58,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:58,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 57 states and 94 transitions. [2022-10-17 16:41:58,035 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 94 transitions. [2022-10-17 16:41:58,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 16:41:58,038 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:58,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:58,534 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-17 16:42:00,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:00,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 62 states and 104 transitions. [2022-10-17 16:42:00,188 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 104 transitions. [2022-10-17 16:42:00,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-17 16:42:00,192 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:00,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:00,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:00,478 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 8 proven. 39 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-17 16:42:01,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:01,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 74 states and 132 transitions. [2022-10-17 16:42:01,931 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 132 transitions. [2022-10-17 16:42:01,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-17 16:42:01,935 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:01,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:02,073 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 16 proven. 77 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-10-17 16:42:02,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:02,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 76 states and 134 transitions. [2022-10-17 16:42:02,361 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 134 transitions. [2022-10-17 16:42:02,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-10-17 16:42:02,369 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:02,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:02,831 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 44 proven. 193 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2022-10-17 16:42:04,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:04,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 86 states and 162 transitions. [2022-10-17 16:42:04,152 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 162 transitions. [2022-10-17 16:42:04,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-10-17 16:42:04,156 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:04,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:04,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 51 proven. 299 refuted. 0 times theorem prover too weak. 898 trivial. 0 not checked. [2022-10-17 16:42:04,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:04,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 88 states and 164 transitions. [2022-10-17 16:42:04,881 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 164 transitions. [2022-10-17 16:42:04,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-17 16:42:04,885 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:04,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:04,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:05,126 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 36 proven. 151 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2022-10-17 16:42:05,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:05,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 90 states and 166 transitions. [2022-10-17 16:42:05,459 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 166 transitions. [2022-10-17 16:42:05,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-10-17 16:42:05,462 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:05,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:06,136 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 140 proven. 168 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-10-17 16:42:07,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:07,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 92 states and 165 transitions. [2022-10-17 16:42:07,188 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 165 transitions. [2022-10-17 16:42:07,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-10-17 16:42:07,191 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:07,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:07,638 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 45 proven. 260 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2022-10-17 16:42:09,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:09,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 102 states and 194 transitions. [2022-10-17 16:42:09,235 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 194 transitions. [2022-10-17 16:42:09,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-10-17 16:42:09,239 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:09,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:09,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 57 proven. 313 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2022-10-17 16:42:09,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:09,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 104 states and 196 transitions. [2022-10-17 16:42:09,888 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 196 transitions. [2022-10-17 16:42:09,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-10-17 16:42:09,895 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:09,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:10,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1603 backedges. 66 proven. 401 refuted. 0 times theorem prover too weak. 1136 trivial. 0 not checked. [2022-10-17 16:42:10,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:10,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 106 states and 198 transitions. [2022-10-17 16:42:10,591 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 198 transitions. [2022-10-17 16:42:10,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2022-10-17 16:42:10,611 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:10,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:12,109 INFO L134 CoverageAnalysis]: Checked inductivity of 14593 backedges. 236 proven. 1616 refuted. 0 times theorem prover too weak. 12741 trivial. 0 not checked. [2022-10-17 16:42:13,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:13,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 116 states and 230 transitions. [2022-10-17 16:42:13,767 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 230 transitions. [2022-10-17 16:42:13,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2022-10-17 16:42:13,784 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:13,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:13,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:14,906 INFO L134 CoverageAnalysis]: Checked inductivity of 12466 backedges. 233 proven. 1458 refuted. 0 times theorem prover too weak. 10775 trivial. 0 not checked. [2022-10-17 16:42:15,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:15,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 118 states and 232 transitions. [2022-10-17 16:42:15,307 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 232 transitions. [2022-10-17 16:42:15,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2022-10-17 16:42:15,324 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:15,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:16,340 INFO L134 CoverageAnalysis]: Checked inductivity of 10358 backedges. 216 proven. 1327 refuted. 0 times theorem prover too weak. 8815 trivial. 0 not checked. [2022-10-17 16:42:16,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:16,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 120 states and 234 transitions. [2022-10-17 16:42:16,694 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 234 transitions. [2022-10-17 16:42:16,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2022-10-17 16:42:16,700 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:16,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:18,112 INFO L134 CoverageAnalysis]: Checked inductivity of 12466 backedges. 246 proven. 1693 refuted. 0 times theorem prover too weak. 10527 trivial. 0 not checked. [2022-10-17 16:42:19,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:19,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 130 states and 269 transitions. [2022-10-17 16:42:19,836 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 269 transitions. [2022-10-17 16:42:19,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2022-10-17 16:42:19,845 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:19,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms