./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_2calls_10-2.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_9036ef61-9a97-4512-8f96-bbd9effb29e2/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9036ef61-9a97-4512-8f96-bbd9effb29e2/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_9036ef61-9a97-4512-8f96-bbd9effb29e2/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9036ef61-9a97-4512-8f96-bbd9effb29e2/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_2calls_10-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9036ef61-9a97-4512-8f96-bbd9effb29e2/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_9036ef61-9a97-4512-8f96-bbd9effb29e2/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 ad793266928b7f31f4ee1b23974468bb9f6761486c9c1aae6fbee8a7b7aca3db --- 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 16:54:18,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:54:18,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:54:18,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:54:18,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:54:18,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:54:18,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:54:18,648 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:54:18,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:54:18,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:54:18,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:54:18,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:54:18,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:54:18,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:54:18,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:54:18,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:54:18,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:54:18,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:54:18,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:54:18,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:54:18,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:54:18,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:54:18,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:54:18,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:54:18,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:54:18,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:54:18,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:54:18,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:54:18,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:54:18,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:54:18,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:54:18,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:54:18,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:54:18,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:54:18,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:54:18,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:54:18,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:54:18,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:54:18,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:54:18,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:54:18,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:54:18,728 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9036ef61-9a97-4512-8f96-bbd9effb29e2/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:54:18,772 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:54:18,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:54:18,773 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:54:18,774 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:54:18,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:54:18,775 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:54:18,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:54:18,775 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:54:18,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:54:18,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:54:18,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:54:18,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:54:18,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:54:18,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:54:18,777 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:54:18,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:54:18,777 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:54:18,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:54:18,778 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:54:18,778 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:54:18,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:54:18,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:54:18,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:54:18,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:54:18,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:54:18,779 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:54:18,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:54:18,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:54:18,780 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_9036ef61-9a97-4512-8f96-bbd9effb29e2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9036ef61-9a97-4512-8f96-bbd9effb29e2/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad793266928b7f31f4ee1b23974468bb9f6761486c9c1aae6fbee8a7b7aca3db [2022-10-17 16:54:19,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:54:19,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:54:19,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:54:19,105 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:54:19,107 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:54:19,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9036ef61-9a97-4512-8f96-bbd9effb29e2/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/recursive-simple/fibo_2calls_10-2.c [2022-10-17 16:54:19,194 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9036ef61-9a97-4512-8f96-bbd9effb29e2/bin/ukojak-92XMlrwhuB/data/aa693ca63/0a9ad742b9f848e09a737fa97b894989/FLAGfdf0b5b6b [2022-10-17 16:54:19,634 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:54:19,635 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9036ef61-9a97-4512-8f96-bbd9effb29e2/sv-benchmarks/c/recursive-simple/fibo_2calls_10-2.c [2022-10-17 16:54:19,646 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9036ef61-9a97-4512-8f96-bbd9effb29e2/bin/ukojak-92XMlrwhuB/data/aa693ca63/0a9ad742b9f848e09a737fa97b894989/FLAGfdf0b5b6b [2022-10-17 16:54:20,005 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9036ef61-9a97-4512-8f96-bbd9effb29e2/bin/ukojak-92XMlrwhuB/data/aa693ca63/0a9ad742b9f848e09a737fa97b894989 [2022-10-17 16:54:20,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:54:20,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:54:20,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:54:20,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:54:20,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:54:20,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:54:20" (1/1) ... [2022-10-17 16:54:20,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@463f07cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:20, skipping insertion in model container [2022-10-17 16:54:20,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:54:20" (1/1) ... [2022-10-17 16:54:20,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:54:20,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:54:20,244 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_9036ef61-9a97-4512-8f96-bbd9effb29e2/sv-benchmarks/c/recursive-simple/fibo_2calls_10-2.c[949,962] [2022-10-17 16:54:20,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:54:20,258 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:54:20,286 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_9036ef61-9a97-4512-8f96-bbd9effb29e2/sv-benchmarks/c/recursive-simple/fibo_2calls_10-2.c[949,962] [2022-10-17 16:54:20,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:54:20,303 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:54:20,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:20 WrapperNode [2022-10-17 16:54:20,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:54:20,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:54:20,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:54:20,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:54:20,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:20" (1/1) ... [2022-10-17 16:54:20,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:20" (1/1) ... [2022-10-17 16:54:20,341 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-10-17 16:54:20,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:54:20,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:54:20,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:54:20,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:54:20,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:20" (1/1) ... [2022-10-17 16:54:20,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:20" (1/1) ... [2022-10-17 16:54:20,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:20" (1/1) ... [2022-10-17 16:54:20,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:20" (1/1) ... [2022-10-17 16:54:20,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:20" (1/1) ... [2022-10-17 16:54:20,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:20" (1/1) ... [2022-10-17 16:54:20,374 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:20" (1/1) ... [2022-10-17 16:54:20,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:20" (1/1) ... [2022-10-17 16:54:20,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:54:20,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:54:20,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:54:20,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:54:20,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:20" (1/1) ... [2022-10-17 16:54:20,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:54:20,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9036ef61-9a97-4512-8f96-bbd9effb29e2/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:54:20,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9036ef61-9a97-4512-8f96-bbd9effb29e2/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:54:20,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9036ef61-9a97-4512-8f96-bbd9effb29e2/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:54:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:54:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:54:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2022-10-17 16:54:20,482 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2022-10-17 16:54:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2022-10-17 16:54:20,483 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2022-10-17 16:54:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:54:20,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:54:20,552 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:54:20,554 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:54:20,675 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:54:20,691 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:54:20,692 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:54:20,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:54:20 BoogieIcfgContainer [2022-10-17 16:54:20,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:54:20,695 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:54:20,696 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:54:20,706 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:54:20,706 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:54:20" (1/1) ... [2022-10-17 16:54:20,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:54:20,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:20,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 33 transitions. [2022-10-17 16:54:20,774 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-10-17 16:54:20,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:54:20,778 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:20,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:20,979 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 16:54:21,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:21,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 30 states and 39 transitions. [2022-10-17 16:54:21,062 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2022-10-17 16:54:21,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:54:21,063 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:21,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:21,165 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 16:54:21,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:21,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 34 states and 46 transitions. [2022-10-17 16:54:21,439 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2022-10-17 16:54:21,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-17 16:54:21,440 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:21,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:21,737 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 16:54:21,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:21,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 36 states and 50 transitions. [2022-10-17 16:54:21,898 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2022-10-17 16:54:21,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 16:54:21,900 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:21,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:22,179 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 16:54:22,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:22,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 43 states and 66 transitions. [2022-10-17 16:54:22,890 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 66 transitions. [2022-10-17 16:54:22,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-17 16:54:22,892 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:22,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:23,076 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 16:54:23,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:23,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 45 states and 69 transitions. [2022-10-17 16:54:23,475 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 69 transitions. [2022-10-17 16:54:23,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-17 16:54:23,477 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:23,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:23,803 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 16:54:24,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:24,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 45 states and 66 transitions. [2022-10-17 16:54:24,520 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 66 transitions. [2022-10-17 16:54:24,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 16:54:24,523 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:24,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:24,763 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 16:54:26,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:26,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 57 states and 95 transitions. [2022-10-17 16:54:26,100 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 95 transitions. [2022-10-17 16:54:26,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-17 16:54:26,103 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:26,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:26,189 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 16:54:26,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:26,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 57 states and 94 transitions. [2022-10-17 16:54:26,408 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 94 transitions. [2022-10-17 16:54:26,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 16:54:26,413 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:26,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:26,886 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 16:54:28,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:28,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 62 states and 104 transitions. [2022-10-17 16:54:28,523 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 104 transitions. [2022-10-17 16:54:28,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-17 16:54:28,526 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:28,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:28,747 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 16:54:30,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:30,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 74 states and 132 transitions. [2022-10-17 16:54:30,213 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 132 transitions. [2022-10-17 16:54:30,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-17 16:54:30,219 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:30,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:30,408 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 16:54:30,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:30,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 76 states and 134 transitions. [2022-10-17 16:54:30,686 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 134 transitions. [2022-10-17 16:54:30,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-10-17 16:54:30,690 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:30,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:30,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:31,083 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 16:54:32,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:32,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 86 states and 162 transitions. [2022-10-17 16:54:32,479 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 162 transitions. [2022-10-17 16:54:32,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-17 16:54:32,482 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:32,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:32,763 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 16:54:33,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:33,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 88 states and 164 transitions. [2022-10-17 16:54:33,082 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 164 transitions. [2022-10-17 16:54:33,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-10-17 16:54:33,089 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:33,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:33,525 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 16:54:33,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:33,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 90 states and 166 transitions. [2022-10-17 16:54:33,847 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 166 transitions. [2022-10-17 16:54:33,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-10-17 16:54:33,854 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:33,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:34,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 54 proven. 348 refuted. 0 times theorem prover too weak. 846 trivial. 0 not checked. [2022-10-17 16:54:36,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:36,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 102 states and 199 transitions. [2022-10-17 16:54:36,327 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 199 transitions. [2022-10-17 16:54:36,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-10-17 16:54:36,333 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:36,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:36,871 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 16:54:37,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:37,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 104 states and 201 transitions. [2022-10-17 16:54:37,230 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 201 transitions. [2022-10-17 16:54:37,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2022-10-17 16:54:37,243 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:37,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:38,387 INFO L134 CoverageAnalysis]: Checked inductivity of 8584 backedges. 185 proven. 1197 refuted. 0 times theorem prover too weak. 7202 trivial. 0 not checked. [2022-10-17 16:54:40,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:40,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 114 states and 235 transitions. [2022-10-17 16:54:40,222 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 235 transitions. [2022-10-17 16:54:40,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2022-10-17 16:54:40,238 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:40,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:41,372 INFO L134 CoverageAnalysis]: Checked inductivity of 11388 backedges. 211 proven. 1415 refuted. 0 times theorem prover too weak. 9762 trivial. 0 not checked. [2022-10-17 16:54:41,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:41,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 116 states and 237 transitions. [2022-10-17 16:54:41,768 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 237 transitions. [2022-10-17 16:54:41,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-10-17 16:54:41,775 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:41,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:42,259 INFO L134 CoverageAnalysis]: Checked inductivity of 3221 backedges. 157 proven. 654 refuted. 0 times theorem prover too weak. 2410 trivial. 0 not checked. [2022-10-17 16:54:42,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:42,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 118 states and 239 transitions. [2022-10-17 16:54:42,672 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 239 transitions. [2022-10-17 16:54:42,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-10-17 16:54:42,679 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:42,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:43,421 INFO L134 CoverageAnalysis]: Checked inductivity of 3221 backedges. 273 proven. 636 refuted. 0 times theorem prover too weak. 2312 trivial. 0 not checked. [2022-10-17 16:54:44,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:44,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 118 states and 238 transitions. [2022-10-17 16:54:44,523 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 238 transitions. [2022-10-17 16:54:44,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-10-17 16:54:44,527 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:44,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:45,380 INFO L134 CoverageAnalysis]: Checked inductivity of 4405 backedges. 463 proven. 462 refuted. 0 times theorem prover too weak. 3480 trivial. 0 not checked. [2022-10-17 16:54:46,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:46,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 120 states and 238 transitions. [2022-10-17 16:54:46,476 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 238 transitions. [2022-10-17 16:54:46,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2022-10-17 16:54:46,487 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:46,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:47,748 INFO L134 CoverageAnalysis]: Checked inductivity of 12404 backedges. 343 proven. 1564 refuted. 0 times theorem prover too weak. 10497 trivial. 0 not checked.