./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_2calls_20-1.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_0d548b82-168b-4a3c-a40d-2827e85617b3/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d548b82-168b-4a3c-a40d-2827e85617b3/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_0d548b82-168b-4a3c-a40d-2827e85617b3/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d548b82-168b-4a3c-a40d-2827e85617b3/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_2calls_20-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d548b82-168b-4a3c-a40d-2827e85617b3/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_0d548b82-168b-4a3c-a40d-2827e85617b3/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 0642f258b99d0be7a55bf1ef77240ba2f36dd3da56337cf262b8aebc4e0cc323 --- 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 16:41:24,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:41:24,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:41:24,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:41:24,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:41:24,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:41:24,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:41:24,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:41:24,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:41:24,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:41:24,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:41:24,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:41:24,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:41:24,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:41:24,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:41:24,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:41:24,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:41:24,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:41:24,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:41:24,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:41:24,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:41:24,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:41:24,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:41:24,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:41:24,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:41:24,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:41:24,875 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:41:24,876 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:41:24,877 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:41:24,878 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:41:24,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:41:24,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:41:24,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:41:24,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:41:24,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:41:24,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:41:24,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:41:24,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:41:24,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:41:24,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:41:24,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:41:24,890 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d548b82-168b-4a3c-a40d-2827e85617b3/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:41:24,916 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:41:24,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:41:24,917 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:41:24,918 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:41:24,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:41:24,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:41:24,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:41:24,920 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:41:24,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:41:24,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:41:24,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:41:24,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:41:24,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:41:24,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:41:24,922 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:41:24,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:41:24,923 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:41:24,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:41:24,924 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:41:24,924 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:41:24,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:41:24,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:41:24,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:41:24,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:41:24,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:41:24,926 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:41:24,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:41:24,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:41:24,927 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_0d548b82-168b-4a3c-a40d-2827e85617b3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d548b82-168b-4a3c-a40d-2827e85617b3/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0642f258b99d0be7a55bf1ef77240ba2f36dd3da56337cf262b8aebc4e0cc323 [2022-10-17 16:41:25,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:41:25,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:41:25,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:41:25,312 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:41:25,313 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:41:25,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d548b82-168b-4a3c-a40d-2827e85617b3/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/recursive-simple/fibo_2calls_20-1.c [2022-10-17 16:41:25,407 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d548b82-168b-4a3c-a40d-2827e85617b3/bin/ukojak-92XMlrwhuB/data/a679faa4b/35273f077a53479298d626580df952d9/FLAG3f8172601 [2022-10-17 16:41:25,877 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:41:25,878 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d548b82-168b-4a3c-a40d-2827e85617b3/sv-benchmarks/c/recursive-simple/fibo_2calls_20-1.c [2022-10-17 16:41:25,889 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d548b82-168b-4a3c-a40d-2827e85617b3/bin/ukojak-92XMlrwhuB/data/a679faa4b/35273f077a53479298d626580df952d9/FLAG3f8172601 [2022-10-17 16:41:26,259 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d548b82-168b-4a3c-a40d-2827e85617b3/bin/ukojak-92XMlrwhuB/data/a679faa4b/35273f077a53479298d626580df952d9 [2022-10-17 16:41:26,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:41:26,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:41:26,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:41:26,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:41:26,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:41:26,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:41:26" (1/1) ... [2022-10-17 16:41:26,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ac2392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:26, skipping insertion in model container [2022-10-17 16:41:26,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:41:26" (1/1) ... [2022-10-17 16:41:26,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:41:26,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:41:26,578 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_0d548b82-168b-4a3c-a40d-2827e85617b3/sv-benchmarks/c/recursive-simple/fibo_2calls_20-1.c[951,964] [2022-10-17 16:41:26,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:41:26,591 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:41:26,614 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_0d548b82-168b-4a3c-a40d-2827e85617b3/sv-benchmarks/c/recursive-simple/fibo_2calls_20-1.c[951,964] [2022-10-17 16:41:26,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:41:26,631 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:41:26,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:26 WrapperNode [2022-10-17 16:41:26,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:41:26,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:41:26,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:41:26,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:41:26,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:26" (1/1) ... [2022-10-17 16:41:26,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:26" (1/1) ... [2022-10-17 16:41:26,672 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-10-17 16:41:26,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:41:26,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:41:26,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:41:26,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:41:26,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:26" (1/1) ... [2022-10-17 16:41:26,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:26" (1/1) ... [2022-10-17 16:41:26,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:26" (1/1) ... [2022-10-17 16:41:26,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:26" (1/1) ... [2022-10-17 16:41:26,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:26" (1/1) ... [2022-10-17 16:41:26,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:26" (1/1) ... [2022-10-17 16:41:26,708 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:26" (1/1) ... [2022-10-17 16:41:26,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:26" (1/1) ... [2022-10-17 16:41:26,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:41:26,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:41:26,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:41:26,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:41:26,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:41:26" (1/1) ... [2022-10-17 16:41:26,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:41:26,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d548b82-168b-4a3c-a40d-2827e85617b3/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:41:26,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d548b82-168b-4a3c-a40d-2827e85617b3/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:41:26,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d548b82-168b-4a3c-a40d-2827e85617b3/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:41:26,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:41:26,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:41:26,814 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2022-10-17 16:41:26,814 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2022-10-17 16:41:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2022-10-17 16:41:26,815 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2022-10-17 16:41:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:41:26,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:41:26,879 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:41:26,882 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:41:27,014 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:41:27,033 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:41:27,033 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:41:27,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:41:27 BoogieIcfgContainer [2022-10-17 16:41:27,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:41:27,037 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:41:27,037 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:41:27,045 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:41:27,046 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:41:27" (1/1) ... [2022-10-17 16:41:27,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:41:27,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:27,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 33 transitions. [2022-10-17 16:41:27,122 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-10-17 16:41:27,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:41:27,127 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:27,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:27,334 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 16:41:27,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:27,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 30 states and 39 transitions. [2022-10-17 16:41:27,427 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2022-10-17 16:41:27,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:41:27,428 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:27,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:27,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:27,540 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 16:41:27,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:27,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 34 states and 46 transitions. [2022-10-17 16:41:27,787 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2022-10-17 16:41:27,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-17 16:41:27,789 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:27,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:28,032 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 16:41:28,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:28,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 36 states and 50 transitions. [2022-10-17 16:41:28,186 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2022-10-17 16:41:28,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 16:41:28,188 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:28,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:28,427 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 16:41:29,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:29,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 43 states and 66 transitions. [2022-10-17 16:41:29,158 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 66 transitions. [2022-10-17 16:41:29,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-17 16:41:29,161 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:29,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:29,418 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 16:41:29,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:29,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 45 states and 69 transitions. [2022-10-17 16:41:29,845 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 69 transitions. [2022-10-17 16:41:29,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-17 16:41:29,854 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:29,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:30,222 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 16:41:31,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:31,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 45 states and 66 transitions. [2022-10-17 16:41:31,012 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 66 transitions. [2022-10-17 16:41:31,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 16:41:31,014 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:31,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:31,224 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 16:41:32,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:32,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 57 states and 95 transitions. [2022-10-17 16:41:32,645 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 95 transitions. [2022-10-17 16:41:32,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-17 16:41:32,658 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:32,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:32,806 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 16:41:33,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:33,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 57 states and 94 transitions. [2022-10-17 16:41:33,044 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 94 transitions. [2022-10-17 16:41:33,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 16:41:33,050 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:33,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:33,530 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 16:41:34,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:34,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 60 states and 102 transitions. [2022-10-17 16:41:34,985 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 102 transitions. [2022-10-17 16:41:34,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-17 16:41:34,987 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:34,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:35,193 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 16:41:36,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:36,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 70 states and 129 transitions. [2022-10-17 16:41:36,378 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 129 transitions. [2022-10-17 16:41:36,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-17 16:41:36,384 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:36,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:36,574 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 16:41:36,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:36,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 72 states and 131 transitions. [2022-10-17 16:41:36,856 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 131 transitions. [2022-10-17 16:41:36,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-17 16:41:36,859 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:36,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:37,030 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 16:41:37,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:37,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 74 states and 133 transitions. [2022-10-17 16:41:37,291 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 133 transitions. [2022-10-17 16:41:37,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-10-17 16:41:37,295 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:37,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:37,769 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 16:41:39,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:39,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 84 states and 161 transitions. [2022-10-17 16:41:39,107 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 161 transitions. [2022-10-17 16:41:39,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-10-17 16:41:39,111 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:39,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:39,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1608 backedges. 59 proven. 341 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2022-10-17 16:41:39,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:39,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 86 states and 163 transitions. [2022-10-17 16:41:39,799 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 163 transitions. [2022-10-17 16:41:39,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-10-17 16:41:39,804 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:39,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:40,078 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 42 proven. 223 refuted. 0 times theorem prover too weak. 521 trivial. 0 not checked. [2022-10-17 16:41:40,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:40,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 88 states and 165 transitions. [2022-10-17 16:41:40,378 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 165 transitions. [2022-10-17 16:41:40,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-10-17 16:41:40,383 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:40,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:41,043 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 16:41:42,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:42,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 90 states and 164 transitions. [2022-10-17 16:41:42,102 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 164 transitions. [2022-10-17 16:41:42,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-10-17 16:41:42,107 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:42,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:42,535 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 53 proven. 288 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2022-10-17 16:41:44,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:44,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 102 states and 195 transitions. [2022-10-17 16:41:44,405 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 195 transitions. [2022-10-17 16:41:44,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-10-17 16:41:44,412 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:44,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:45,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2995 backedges. 88 proven. 588 refuted. 0 times theorem prover too weak. 2319 trivial. 0 not checked. [2022-10-17 16:41:45,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:45,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 104 states and 197 transitions. [2022-10-17 16:41:45,368 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 197 transitions. [2022-10-17 16:41:45,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2022-10-17 16:41:45,380 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:45,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:46,316 INFO L134 CoverageAnalysis]: Checked inductivity of 7290 backedges. 207 proven. 1061 refuted. 0 times theorem prover too weak. 6022 trivial. 0 not checked. [2022-10-17 16:41:48,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:48,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 114 states and 229 transitions. [2022-10-17 16:41:48,023 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 229 transitions. [2022-10-17 16:41:48,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2022-10-17 16:41:48,040 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:48,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:49,045 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 16:41:49,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:49,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 116 states and 231 transitions. [2022-10-17 16:41:49,460 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 231 transitions. [2022-10-17 16:41:49,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-10-17 16:41:49,465 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:49,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:49,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:50,479 INFO L134 CoverageAnalysis]: Checked inductivity of 5016 backedges. 576 proven. 701 refuted. 0 times theorem prover too weak. 3739 trivial. 0 not checked. [2022-10-17 16:41:51,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:51,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 116 states and 230 transitions. [2022-10-17 16:41:51,012 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 230 transitions. [2022-10-17 16:41:51,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2022-10-17 16:41:51,018 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:51,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:41:51,945 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 16:41:52,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:41:52,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 118 states and 232 transitions. [2022-10-17 16:41:52,407 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 232 transitions. [2022-10-17 16:41:52,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2022-10-17 16:41:52,418 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:41:52,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:41:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat