./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec1_product28.cil.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_9e1da31d-fb4e-4ad0-b481-620a335b2f21/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1da31d-fb4e-4ad0-b481-620a335b2f21/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_9e1da31d-fb4e-4ad0-b481-620a335b2f21/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1da31d-fb4e-4ad0-b481-620a335b2f21/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec1_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1da31d-fb4e-4ad0-b481-620a335b2f21/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_9e1da31d-fb4e-4ad0-b481-620a335b2f21/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 bff47839034fd9cbb920af5a298a9e1741d5a9c8d5dbee3233345fdc3046fb27 --- 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 16:50:30,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:50:30,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:50:31,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:50:31,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:50:31,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:50:31,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:50:31,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:50:31,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:50:31,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:50:31,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:50:31,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:50:31,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:50:31,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:50:31,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:50:31,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:50:31,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:50:31,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:50:31,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:50:31,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:50:31,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:50:31,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:50:31,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:50:31,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:50:31,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:50:31,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:50:31,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:50:31,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:50:31,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:50:31,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:50:31,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:50:31,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:50:31,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:50:31,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:50:31,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:50:31,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:50:31,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:50:31,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:50:31,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:50:31,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:50:31,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:50:31,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1da31d-fb4e-4ad0-b481-620a335b2f21/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:50:31,164 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:50:31,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:50:31,166 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:50:31,166 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:50:31,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:50:31,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:50:31,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:50:31,168 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:50:31,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:50:31,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:50:31,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:50:31,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:50:31,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:50:31,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:50:31,171 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:50:31,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:50:31,171 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:50:31,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:50:31,172 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:50:31,172 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:50:31,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:50:31,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:50:31,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:50:31,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:50:31,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:50:31,173 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:50:31,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:50:31,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:50:31,176 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_9e1da31d-fb4e-4ad0-b481-620a335b2f21/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1da31d-fb4e-4ad0-b481-620a335b2f21/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bff47839034fd9cbb920af5a298a9e1741d5a9c8d5dbee3233345fdc3046fb27 [2022-10-17 16:50:31,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:50:31,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:50:31,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:50:31,547 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:50:31,548 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:50:31,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1da31d-fb4e-4ad0-b481-620a335b2f21/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/product-lines/elevator_spec1_product28.cil.c [2022-10-17 16:50:31,619 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1da31d-fb4e-4ad0-b481-620a335b2f21/bin/ukojak-92XMlrwhuB/data/175959a65/f2da3a4dec1841a7b8a8fa096634bce1/FLAGa837f4e4a [2022-10-17 16:50:32,379 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:50:32,382 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1da31d-fb4e-4ad0-b481-620a335b2f21/sv-benchmarks/c/product-lines/elevator_spec1_product28.cil.c [2022-10-17 16:50:32,418 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1da31d-fb4e-4ad0-b481-620a335b2f21/bin/ukojak-92XMlrwhuB/data/175959a65/f2da3a4dec1841a7b8a8fa096634bce1/FLAGa837f4e4a [2022-10-17 16:50:32,504 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1da31d-fb4e-4ad0-b481-620a335b2f21/bin/ukojak-92XMlrwhuB/data/175959a65/f2da3a4dec1841a7b8a8fa096634bce1 [2022-10-17 16:50:32,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:50:32,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:50:32,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:50:32,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:50:32,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:50:32,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:50:32" (1/1) ... [2022-10-17 16:50:32,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b0f4940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:32, skipping insertion in model container [2022-10-17 16:50:32,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:50:32" (1/1) ... [2022-10-17 16:50:32,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:50:32,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:50:33,221 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_9e1da31d-fb4e-4ad0-b481-620a335b2f21/sv-benchmarks/c/product-lines/elevator_spec1_product28.cil.c[63597,63610] [2022-10-17 16:50:33,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:50:33,276 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:50:33,373 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_9e1da31d-fb4e-4ad0-b481-620a335b2f21/sv-benchmarks/c/product-lines/elevator_spec1_product28.cil.c[63597,63610] [2022-10-17 16:50:33,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:50:33,425 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:50:33,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:33 WrapperNode [2022-10-17 16:50:33,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:50:33,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:50:33,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:50:33,427 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:50:33,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:33" (1/1) ... [2022-10-17 16:50:33,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:33" (1/1) ... [2022-10-17 16:50:33,541 INFO L138 Inliner]: procedures = 97, calls = 349, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 1167 [2022-10-17 16:50:33,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:50:33,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:50:33,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:50:33,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:50:33,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:33" (1/1) ... [2022-10-17 16:50:33,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:33" (1/1) ... [2022-10-17 16:50:33,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:33" (1/1) ... [2022-10-17 16:50:33,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:33" (1/1) ... [2022-10-17 16:50:33,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:33" (1/1) ... [2022-10-17 16:50:33,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:33" (1/1) ... [2022-10-17 16:50:33,694 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:33" (1/1) ... [2022-10-17 16:50:33,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:33" (1/1) ... [2022-10-17 16:50:33,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:50:33,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:50:33,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:50:33,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:50:33,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:33" (1/1) ... [2022-10-17 16:50:33,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:50:33,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1da31d-fb4e-4ad0-b481-620a335b2f21/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:50:33,774 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1da31d-fb4e-4ad0-b481-620a335b2f21/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:50:33,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1da31d-fb4e-4ad0-b481-620a335b2f21/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:50:33,838 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2022-10-17 16:50:33,838 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2022-10-17 16:50:33,839 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-10-17 16:50:33,840 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-10-17 16:50:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-10-17 16:50:33,840 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-10-17 16:50:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-10-17 16:50:33,840 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-10-17 16:50:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-10-17 16:50:33,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-10-17 16:50:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-10-17 16:50:33,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-10-17 16:50:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-10-17 16:50:33,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-10-17 16:50:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-10-17 16:50:33,842 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-10-17 16:50:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-10-17 16:50:33,842 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-10-17 16:50:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2022-10-17 16:50:33,842 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2022-10-17 16:50:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:50:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2022-10-17 16:50:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2022-10-17 16:50:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-10-17 16:50:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-10-17 16:50:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-10-17 16:50:33,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-10-17 16:50:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-10-17 16:50:33,844 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-10-17 16:50:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2022-10-17 16:50:33,845 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2022-10-17 16:50:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2022-10-17 16:50:33,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2022-10-17 16:50:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-10-17 16:50:33,845 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-10-17 16:50:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-10-17 16:50:33,846 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-10-17 16:50:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2022-10-17 16:50:33,846 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2022-10-17 16:50:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-10-17 16:50:33,847 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-10-17 16:50:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-10-17 16:50:33,847 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-10-17 16:50:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-10-17 16:50:33,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-10-17 16:50:33,848 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-10-17 16:50:33,848 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-10-17 16:50:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:50:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-10-17 16:50:33,849 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-10-17 16:50:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:50:33,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:50:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-10-17 16:50:33,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-10-17 16:50:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2022-10-17 16:50:33,851 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2022-10-17 16:50:34,104 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:50:34,108 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:50:35,509 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:50:36,462 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:50:36,463 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:50:36,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:50:36 BoogieIcfgContainer [2022-10-17 16:50:36,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:50:36,470 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:50:36,470 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:50:36,482 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:50:36,483 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:50:36" (1/1) ... [2022-10-17 16:50:36,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:50:36,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:36,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 390 states and 616 transitions. [2022-10-17 16:50:36,683 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 616 transitions. [2022-10-17 16:50:36,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-17 16:50:36,695 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:36,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:37,918 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:50:38,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:38,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 403 states and 649 transitions. [2022-10-17 16:50:38,178 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 649 transitions. [2022-10-17 16:50:38,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-17 16:50:38,189 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:38,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:38,850 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:50:38,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:38,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 404 states and 650 transitions. [2022-10-17 16:50:38,901 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 650 transitions. [2022-10-17 16:50:38,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-17 16:50:38,906 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:38,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:39,326 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:50:39,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:39,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 408 states and 654 transitions. [2022-10-17 16:50:39,355 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 654 transitions. [2022-10-17 16:50:39,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-17 16:50:39,357 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:39,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:39,731 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:50:39,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:39,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 409 states and 655 transitions. [2022-10-17 16:50:39,770 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 655 transitions. [2022-10-17 16:50:39,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-17 16:50:39,775 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:39,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:40,154 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:50:40,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:40,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 410 states and 656 transitions. [2022-10-17 16:50:40,187 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 656 transitions. [2022-10-17 16:50:40,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-17 16:50:40,189 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:40,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:40,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:40,626 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:50:40,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:40,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 411 states and 657 transitions. [2022-10-17 16:50:40,655 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 657 transitions. [2022-10-17 16:50:40,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-17 16:50:40,658 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:40,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:41,034 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:50:41,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:41,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 412 states and 658 transitions. [2022-10-17 16:50:41,064 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 658 transitions. [2022-10-17 16:50:41,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-17 16:50:41,067 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:41,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:41,496 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:50:41,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:41,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 415 states and 661 transitions. [2022-10-17 16:50:41,527 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 661 transitions. [2022-10-17 16:50:41,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-17 16:50:41,528 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:41,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:41,864 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:50:41,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:41,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 418 states and 664 transitions. [2022-10-17 16:50:41,893 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 664 transitions. [2022-10-17 16:50:41,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-17 16:50:41,894 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:41,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:42,199 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:50:42,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:42,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 421 states and 667 transitions. [2022-10-17 16:50:42,228 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 667 transitions. [2022-10-17 16:50:42,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-17 16:50:42,229 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:42,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:42,557 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:50:42,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:42,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 424 states and 671 transitions. [2022-10-17 16:50:42,590 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 671 transitions. [2022-10-17 16:50:42,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-17 16:50:42,591 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:42,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:42,912 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:50:42,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:42,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 426 states and 673 transitions. [2022-10-17 16:50:42,947 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 673 transitions. [2022-10-17 16:50:42,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-17 16:50:42,949 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:42,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:43,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:50:43,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:43,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 431 states and 688 transitions. [2022-10-17 16:50:43,395 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 688 transitions. [2022-10-17 16:50:43,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-17 16:50:43,398 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:43,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:43,726 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:50:43,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:43,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 432 states and 689 transitions. [2022-10-17 16:50:43,774 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 689 transitions. [2022-10-17 16:50:43,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-17 16:50:43,776 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:43,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:44,104 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:50:44,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:44,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 435 states and 693 transitions. [2022-10-17 16:50:44,142 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 693 transitions. [2022-10-17 16:50:44,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-17 16:50:44,144 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:44,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:44,481 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:50:44,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:44,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 436 states and 694 transitions. [2022-10-17 16:50:44,512 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 694 transitions. [2022-10-17 16:50:44,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-17 16:50:44,514 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:44,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:44,864 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-17 16:50:44,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:44,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 439 states and 698 transitions. [2022-10-17 16:50:44,904 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 698 transitions. [2022-10-17 16:50:44,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-17 16:50:44,910 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:44,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:45,228 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-17 16:50:45,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:45,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 440 states and 699 transitions. [2022-10-17 16:50:45,272 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 699 transitions. [2022-10-17 16:50:45,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-10-17 16:50:45,275 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:45,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:45,605 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-17 16:50:45,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:45,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 443 states and 703 transitions. [2022-10-17 16:50:45,644 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 703 transitions. [2022-10-17 16:50:45,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-10-17 16:50:45,647 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:45,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:46,012 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-17 16:50:46,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:46,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 444 states and 704 transitions. [2022-10-17 16:50:46,057 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 704 transitions. [2022-10-17 16:50:46,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-10-17 16:50:46,061 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:46,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:46,513 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:50:46,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:46,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 467 states and 769 transitions. [2022-10-17 16:50:46,776 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 769 transitions. [2022-10-17 16:50:46,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-17 16:50:46,780 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:46,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:47,217 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-17 16:50:47,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:47,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 468 states and 770 transitions. [2022-10-17 16:50:47,304 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 770 transitions. [2022-10-17 16:50:47,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-10-17 16:50:47,312 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:47,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:47,711 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-17 16:50:47,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:47,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 472 states and 774 transitions. [2022-10-17 16:50:47,782 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 774 transitions. [2022-10-17 16:50:47,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-17 16:50:47,785 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:47,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:48,174 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-17 16:50:48,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:48,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 473 states and 775 transitions. [2022-10-17 16:50:48,255 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 775 transitions. [2022-10-17 16:50:48,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-10-17 16:50:48,258 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:48,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:48,646 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:50:48,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:48,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 474 states and 776 transitions. [2022-10-17 16:50:48,718 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 776 transitions. [2022-10-17 16:50:48,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-17 16:50:48,721 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:48,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:49,102 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-17 16:50:49,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:49,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 475 states and 777 transitions. [2022-10-17 16:50:49,163 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 777 transitions. [2022-10-17 16:50:49,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-10-17 16:50:49,167 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:49,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:50:49,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:49,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 476 states and 778 transitions. [2022-10-17 16:50:49,662 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 778 transitions. [2022-10-17 16:50:49,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-17 16:50:49,667 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:49,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:50,013 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-17 16:50:50,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:50,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 478 states and 780 transitions. [2022-10-17 16:50:50,089 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 780 transitions. [2022-10-17 16:50:50,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-17 16:50:50,093 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:50,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:50,516 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-17 16:50:50,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:50,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 481 states and 783 transitions. [2022-10-17 16:50:50,591 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 783 transitions. [2022-10-17 16:50:50,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-10-17 16:50:50,595 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:50,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:50,965 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:50:51,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:51,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 484 states and 786 transitions. [2022-10-17 16:50:51,036 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 786 transitions. [2022-10-17 16:50:51,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-10-17 16:50:51,039 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:51,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:51,444 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-10-17 16:50:51,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:51,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 487 states and 789 transitions. [2022-10-17 16:50:51,529 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 789 transitions. [2022-10-17 16:50:51,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-17 16:50:51,533 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:51,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:51,939 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-17 16:50:52,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:52,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 489 states and 791 transitions. [2022-10-17 16:50:52,016 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 791 transitions. [2022-10-17 16:50:52,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-10-17 16:50:52,020 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:52,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:52,412 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-17 16:50:52,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:52,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 492 states and 795 transitions. [2022-10-17 16:50:52,493 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 795 transitions. [2022-10-17 16:50:52,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-10-17 16:50:52,496 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:52,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:52,930 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-17 16:50:53,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:53,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 517 states and 868 transitions. [2022-10-17 16:50:53,679 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 868 transitions. [2022-10-17 16:50:53,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-17 16:50:53,683 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:53,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:54,208 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-17 16:50:55,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:55,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 532 states and 909 transitions. [2022-10-17 16:50:55,640 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 909 transitions. [2022-10-17 16:50:55,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-17 16:50:55,644 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:55,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:55,994 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-17 16:50:56,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:56,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 532 states and 908 transitions. [2022-10-17 16:50:56,061 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 908 transitions. [2022-10-17 16:50:56,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-17 16:50:56,066 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:56,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:56,772 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.