./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrpbrk-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0bc0f1-da23-43e8-bba9-ad158b5ff8ac/bin/ukojak-vF6T2TMglN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0bc0f1-da23-43e8-bba9-ad158b5ff8ac/bin/ukojak-vF6T2TMglN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0bc0f1-da23-43e8-bba9-ad158b5ff8ac/bin/ukojak-vF6T2TMglN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0bc0f1-da23-43e8-bba9-ad158b5ff8ac/bin/ukojak-vF6T2TMglN/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrpbrk-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0bc0f1-da23-43e8-bba9-ad158b5ff8ac/bin/ukojak-vF6T2TMglN/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0bc0f1-da23-43e8-bba9-ad158b5ff8ac/bin/ukojak-vF6T2TMglN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d450427152972d80716d02c80706dd3b248a3fc7c05c71ffd29d66e32e1e82f2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 04:28:04,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 04:28:04,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 04:28:04,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 04:28:04,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 04:28:04,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 04:28:04,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 04:28:04,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 04:28:04,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 04:28:04,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 04:28:04,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 04:28:04,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 04:28:04,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 04:28:04,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 04:28:04,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 04:28:04,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 04:28:04,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 04:28:04,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 04:28:04,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 04:28:04,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 04:28:04,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 04:28:04,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 04:28:04,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 04:28:04,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 04:28:04,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 04:28:04,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 04:28:04,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 04:28:04,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 04:28:04,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 04:28:04,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 04:28:04,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 04:28:04,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 04:28:04,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 04:28:04,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 04:28:04,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 04:28:04,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 04:28:04,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 04:28:04,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 04:28:04,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 04:28:04,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 04:28:04,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 04:28:04,261 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0bc0f1-da23-43e8-bba9-ad158b5ff8ac/bin/ukojak-vF6T2TMglN/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-21 04:28:04,306 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 04:28:04,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 04:28:04,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 04:28:04,309 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 04:28:04,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 04:28:04,310 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 04:28:04,310 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 04:28:04,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 04:28:04,317 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 04:28:04,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 04:28:04,318 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 04:28:04,318 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 04:28:04,319 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 04:28:04,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 04:28:04,319 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 04:28:04,319 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 04:28:04,319 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-21 04:28:04,320 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-21 04:28:04,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 04:28:04,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 04:28:04,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 04:28:04,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 04:28:04,321 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-21 04:28:04,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 04:28:04,321 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_bf0bc0f1-da23-43e8-bba9-ad158b5ff8ac/bin/ukojak-vF6T2TMglN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0bc0f1-da23-43e8-bba9-ad158b5ff8ac/bin/ukojak-vF6T2TMglN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d450427152972d80716d02c80706dd3b248a3fc7c05c71ffd29d66e32e1e82f2 [2021-11-21 04:28:04,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 04:28:04,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 04:28:04,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 04:28:04,679 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 04:28:04,679 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 04:28:04,681 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0bc0f1-da23-43e8-bba9-ad158b5ff8ac/bin/ukojak-vF6T2TMglN/../../sv-benchmarks/c/array-memsafety/openbsd_cstrpbrk-alloca-2.i [2021-11-21 04:28:04,757 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0bc0f1-da23-43e8-bba9-ad158b5ff8ac/bin/ukojak-vF6T2TMglN/data/036f9f1c3/4a518ae1d3a84751a9b30aebdaeb78fe/FLAG9fa2c63a6 [2021-11-21 04:28:05,331 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 04:28:05,332 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0bc0f1-da23-43e8-bba9-ad158b5ff8ac/sv-benchmarks/c/array-memsafety/openbsd_cstrpbrk-alloca-2.i [2021-11-21 04:28:05,352 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0bc0f1-da23-43e8-bba9-ad158b5ff8ac/bin/ukojak-vF6T2TMglN/data/036f9f1c3/4a518ae1d3a84751a9b30aebdaeb78fe/FLAG9fa2c63a6 [2021-11-21 04:28:05,605 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0bc0f1-da23-43e8-bba9-ad158b5ff8ac/bin/ukojak-vF6T2TMglN/data/036f9f1c3/4a518ae1d3a84751a9b30aebdaeb78fe [2021-11-21 04:28:05,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 04:28:05,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 04:28:05,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 04:28:05,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 04:28:05,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 04:28:05,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:28:05" (1/1) ... [2021-11-21 04:28:05,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fd89c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:05, skipping insertion in model container [2021-11-21 04:28:05,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:28:05" (1/1) ... [2021-11-21 04:28:05,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 04:28:05,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 04:28:06,066 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 04:28:06,078 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 04:28:06,141 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 04:28:06,173 INFO L208 MainTranslator]: Completed translation [2021-11-21 04:28:06,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06 WrapperNode [2021-11-21 04:28:06,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 04:28:06,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 04:28:06,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 04:28:06,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 04:28:06,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2021-11-21 04:28:06,196 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2021-11-21 04:28:06,226 INFO L137 Inliner]: procedures = 117, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 90 [2021-11-21 04:28:06,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 04:28:06,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 04:28:06,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 04:28:06,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 04:28:06,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2021-11-21 04:28:06,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2021-11-21 04:28:06,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2021-11-21 04:28:06,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2021-11-21 04:28:06,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2021-11-21 04:28:06,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2021-11-21 04:28:06,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2021-11-21 04:28:06,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 04:28:06,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 04:28:06,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 04:28:06,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 04:28:06,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:06" (1/1) ... [2021-11-21 04:28:06,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 04:28:06,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0bc0f1-da23-43e8-bba9-ad158b5ff8ac/bin/ukojak-vF6T2TMglN/z3 [2021-11-21 04:28:06,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0bc0f1-da23-43e8-bba9-ad158b5ff8ac/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-21 04:28:06,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0bc0f1-da23-43e8-bba9-ad158b5ff8ac/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-21 04:28:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 04:28:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 04:28:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 04:28:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 04:28:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 04:28:06,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 04:28:06,478 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 04:28:06,480 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 04:28:06,657 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 04:28:06,742 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 04:28:06,742 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-21 04:28:06,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:28:06 BoogieIcfgContainer [2021-11-21 04:28:06,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 04:28:06,746 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-21 04:28:06,746 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-21 04:28:06,766 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-21 04:28:06,766 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:28:06" (1/1) ... [2021-11-21 04:28:06,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 04:28:06,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:06,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2021-11-21 04:28:06,858 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2021-11-21 04:28:06,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 04:28:06,860 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:06,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:07,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 04:28:07,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:07,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2021-11-21 04:28:07,139 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2021-11-21 04:28:07,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 04:28:07,140 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:07,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:07,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 04:28:07,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:07,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 32 states and 40 transitions. [2021-11-21 04:28:07,555 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2021-11-21 04:28:07,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 04:28:07,556 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:07,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:07,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 04:28:07,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:07,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 34 states and 44 transitions. [2021-11-21 04:28:07,628 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2021-11-21 04:28:07,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 04:28:07,630 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:07,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:07,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 04:28:07,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:07,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 35 states and 45 transitions. [2021-11-21 04:28:07,850 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2021-11-21 04:28:07,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 04:28:07,851 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:07,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:08,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 04:28:08,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:08,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 32 states and 40 transitions. [2021-11-21 04:28:08,274 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2021-11-21 04:28:08,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-21 04:28:08,275 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:08,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:08,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:28:09,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:09,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 33 states and 42 transitions. [2021-11-21 04:28:09,065 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2021-11-21 04:28:09,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-21 04:28:09,065 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:09,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:09,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:28:09,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:09,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 34 states and 45 transitions. [2021-11-21 04:28:09,873 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2021-11-21 04:28:09,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-21 04:28:09,873 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:09,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:10,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:28:11,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:11,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 36 states and 50 transitions. [2021-11-21 04:28:11,184 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2021-11-21 04:28:11,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 04:28:11,185 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:11,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:11,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:28:11,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:11,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 37 states and 50 transitions. [2021-11-21 04:28:11,387 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2021-11-21 04:28:11,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 04:28:11,387 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:11,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:11,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:28:13,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:13,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 40 states and 56 transitions. [2021-11-21 04:28:13,415 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 56 transitions. [2021-11-21 04:28:13,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 04:28:13,415 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:13,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:13,436 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:28:13,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:13,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 40 states and 55 transitions. [2021-11-21 04:28:13,702 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2021-11-21 04:28:13,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 04:28:13,703 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:13,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:13,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:28:14,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:14,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 43 states and 65 transitions. [2021-11-21 04:28:14,916 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 65 transitions. [2021-11-21 04:28:14,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 04:28:14,916 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:14,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:14,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:28:15,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:15,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 42 states and 64 transitions. [2021-11-21 04:28:15,153 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 64 transitions. [2021-11-21 04:28:15,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 04:28:15,153 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:15,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:15,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:28:16,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:16,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 44 states and 66 transitions. [2021-11-21 04:28:16,230 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 66 transitions. [2021-11-21 04:28:16,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-21 04:28:16,231 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:16,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:16,265 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 04:28:16,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:16,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 45 states and 66 transitions. [2021-11-21 04:28:16,462 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 66 transitions. [2021-11-21 04:28:16,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-21 04:28:16,462 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:16,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:16,524 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 04:28:16,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:16,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 46 states and 66 transitions. [2021-11-21 04:28:16,821 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 66 transitions. [2021-11-21 04:28:16,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-21 04:28:16,821 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:16,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:17,038 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:28:17,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:17,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2021-11-21 04:28:17,529 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2021-11-21 04:28:17,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 04:28:17,529 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:17,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:17,720 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:28:18,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:18,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2021-11-21 04:28:18,127 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2021-11-21 04:28:18,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 04:28:18,128 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:18,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:18,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:18,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:28:22,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:22,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 33 states and 40 transitions. [2021-11-21 04:28:22,011 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2021-11-21 04:28:22,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 04:28:22,011 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:22,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:22,055 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 04:28:22,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:22,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 30 states and 35 transitions. [2021-11-21 04:28:22,494 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2021-11-21 04:28:22,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-21 04:28:22,495 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:22,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:22,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:22,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:28:23,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:23,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 35 states and 43 transitions. [2021-11-21 04:28:23,886 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2021-11-21 04:28:23,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-21 04:28:23,886 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:23,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:24,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:28:26,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:26,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 40 states and 51 transitions. [2021-11-21 04:28:26,677 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2021-11-21 04:28:26,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-21 04:28:26,677 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:26,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:27,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 04:28:32,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:32,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 49 states and 67 transitions. [2021-11-21 04:28:32,392 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 67 transitions. [2021-11-21 04:28:32,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-21 04:28:32,392 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:32,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:34,076 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:28:42,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:42,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 60 states and 85 transitions. [2021-11-21 04:28:42,279 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 85 transitions. [2021-11-21 04:28:42,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-21 04:28:42,280 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:42,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:42,330 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-21 04:28:43,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:43,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 57 states and 80 transitions. [2021-11-21 04:28:43,136 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 80 transitions. [2021-11-21 04:28:43,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-21 04:28:43,137 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:43,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:43,166 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 04:28:45,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:45,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 60 states and 86 transitions. [2021-11-21 04:28:45,607 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 86 transitions. [2021-11-21 04:28:45,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-21 04:28:45,608 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:45,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:46,810 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 04:28:49,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:49,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 63 states and 89 transitions. [2021-11-21 04:28:49,785 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 89 transitions. [2021-11-21 04:28:49,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-21 04:28:49,786 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:49,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:49,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:51,140 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:29:02,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:29:02,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 72 states and 111 transitions. [2021-11-21 04:29:02,266 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 111 transitions. [2021-11-21 04:29:02,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 04:29:02,267 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:29:02,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:29:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:29:03,980 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 04:29:13,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:29:13,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 81 states and 129 transitions. [2021-11-21 04:29:13,489 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 129 transitions. [2021-11-21 04:29:13,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-21 04:29:13,490 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:29:13,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:29:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:29:13,531 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 04:29:14,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:29:14,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 78 states and 123 transitions. [2021-11-21 04:29:14,650 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 123 transitions. [2021-11-21 04:29:14,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-21 04:29:14,651 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:29:14,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:29:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:29:14,674 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-21 04:29:17,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:29:17,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 81 states and 127 transitions. [2021-11-21 04:29:17,183 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 127 transitions. [2021-11-21 04:29:17,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-21 04:29:17,184 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:29:17,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:29:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:29:17,240 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-21 04:29:20,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:29:20,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 84 states and 131 transitions. [2021-11-21 04:29:20,021 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 131 transitions. [2021-11-21 04:29:20,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-21 04:29:20,021 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:29:20,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:29:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:29:20,070 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-21 04:29:22,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:29:22,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 88 states and 145 transitions. [2021-11-21 04:29:22,776 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 145 transitions. [2021-11-21 04:29:22,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-21 04:29:22,776 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:29:22,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:29:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:29:22,803 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-21 04:29:25,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:29:25,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 90 states and 150 transitions. [2021-11-21 04:29:25,479 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 150 transitions. [2021-11-21 04:29:25,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-21 04:29:25,480 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:29:25,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:29:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:29:27,329 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 04:29:38,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:29:38,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 99 states and 170 transitions. [2021-11-21 04:29:38,675 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 170 transitions. [2021-11-21 04:29:38,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-21 04:29:38,675 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:29:38,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:29:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:29:38,726 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-21 04:29:41,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:29:41,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 102 states and 173 transitions. [2021-11-21 04:29:41,952 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 173 transitions. [2021-11-21 04:29:41,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-21 04:29:41,953 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:29:41,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:29:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:29:45,641 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:30:09,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:30:09,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 118 states and 201 transitions. [2021-11-21 04:30:09,117 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 201 transitions. [2021-11-21 04:30:09,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-21 04:30:09,117 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:30:09,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:30:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:30:09,158 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-21 04:30:12,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:30:12,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 121 states and 208 transitions. [2021-11-21 04:30:12,385 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 208 transitions. [2021-11-21 04:30:12,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-21 04:30:12,385 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:30:12,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:30:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:30:12,768 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-21 04:30:16,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:30:16,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 124 states and 213 transitions. [2021-11-21 04:30:16,405 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 213 transitions. [2021-11-21 04:30:16,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-21 04:30:16,405 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:30:16,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:30:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:30:17,429 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-21 04:30:22,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:30:22,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 127 states and 219 transitions. [2021-11-21 04:30:22,902 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 219 transitions. [2021-11-21 04:30:22,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-21 04:30:22,903 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:30:22,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:30:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:30:26,914 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 04:30:50,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:30:50,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 140 states and 252 transitions. [2021-11-21 04:30:50,561 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 252 transitions. [2021-11-21 04:30:50,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 04:30:50,562 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:30:50,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:30:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:30:53,254 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:31:19,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:31:19,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 146 states and 268 transitions. [2021-11-21 04:31:19,659 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 268 transitions. [2021-11-21 04:31:19,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 04:31:19,660 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:31:19,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:31:19,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:31:21,794 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 04:31:34,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:31:34,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 150 states and 274 transitions. [2021-11-21 04:31:34,077 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 274 transitions. [2021-11-21 04:31:34,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 04:31:34,077 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:31:34,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:31:34,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:31:34,108 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-21 04:31:39,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:31:39,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 153 states and 280 transitions. [2021-11-21 04:31:39,627 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 280 transitions. [2021-11-21 04:31:39,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 04:31:39,627 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:31:39,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:31:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:31:40,215 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-21 04:31:51,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:31:51,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 159 states and 296 transitions. [2021-11-21 04:31:51,487 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 296 transitions. [2021-11-21 04:31:51,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 04:31:51,488 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:31:51,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:31:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:31:51,512 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-21 04:32:02,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:32:02,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 165 states and 305 transitions. [2021-11-21 04:32:02,169 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 305 transitions. [2021-11-21 04:32:02,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 04:32:02,169 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:32:02,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:32:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:32:02,215 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-21 04:32:04,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:32:04,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 167 states and 309 transitions. [2021-11-21 04:32:04,536 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 309 transitions. [2021-11-21 04:32:04,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 04:32:04,537 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:32:04,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:32:04,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:32:04,561 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-21 04:32:06,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:32:06,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 166 states and 307 transitions. [2021-11-21 04:32:06,372 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 307 transitions. [2021-11-21 04:32:06,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 04:32:06,372 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:32:06,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:32:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:32:09,755 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 04:32:29,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:32:29,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 175 states and 334 transitions. [2021-11-21 04:32:29,330 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 334 transitions. [2021-11-21 04:32:29,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 04:32:29,331 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:32:29,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:32:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:32:29,373 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 04:32:38,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:32:38,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 175 states and 332 transitions. [2021-11-21 04:32:38,930 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 332 transitions. [2021-11-21 04:32:38,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 04:32:38,931 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:32:38,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:32:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:32:38,975 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-21 04:32:41,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:32:41,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 177 states and 333 transitions. [2021-11-21 04:32:41,526 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 333 transitions. [2021-11-21 04:32:41,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 04:32:41,527 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:32:41,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:32:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:32:41,676 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 04:32:50,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:32:50,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 181 states and 341 transitions. [2021-11-21 04:32:50,760 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 341 transitions. [2021-11-21 04:32:50,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-21 04:32:50,760 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:32:50,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:32:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:32:51,514 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-21 04:33:02,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:33:02,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 187 states and 357 transitions. [2021-11-21 04:33:02,832 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 357 transitions. [2021-11-21 04:33:02,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-21 04:33:02,833 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:33:02,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:33:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:33:02,855 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-21 04:33:13,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:33:13,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 193 states and 367 transitions. [2021-11-21 04:33:13,541 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 367 transitions. [2021-11-21 04:33:13,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-21 04:33:13,542 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:33:13,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:33:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:33:13,585 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 04:33:23,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:33:23,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 193 states and 366 transitions. [2021-11-21 04:33:23,622 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 366 transitions. [2021-11-21 04:33:23,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-21 04:33:23,622 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:33:23,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:33:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:33:28,851 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:33:57,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:33:57,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 200 states and 384 transitions. [2021-11-21 04:33:57,155 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 384 transitions. [2021-11-21 04:33:57,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-21 04:33:57,156 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:33:57,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:33:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:33:57,186 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-21 04:34:24,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:34:24,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 213 states and 412 transitions. [2021-11-21 04:34:24,555 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 412 transitions. [2021-11-21 04:34:24,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-21 04:34:24,556 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:34:24,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:34:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:34:24,617 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-21 04:34:27,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:34:27,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 214 states and 416 transitions. [2021-11-21 04:34:27,161 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 416 transitions. [2021-11-21 04:34:27,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-21 04:34:27,162 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:34:27,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:34:27,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:34:27,232 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-21 04:34:29,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:34:29,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 215 states and 419 transitions. [2021-11-21 04:34:29,553 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 419 transitions. [2021-11-21 04:34:29,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-21 04:34:29,554 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:34:29,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:34:29,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:34:29,609 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-21 04:34:37,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:34:37,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 218 states and 427 transitions. [2021-11-21 04:34:37,665 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 427 transitions. [2021-11-21 04:34:37,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-21 04:34:37,666 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:34:37,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:34:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:34:46,420 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-21 04:35:34,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:35:34,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 232 states and 458 transitions. [2021-11-21 04:35:34,279 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 458 transitions. [2021-11-21 04:35:34,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-21 04:35:34,280 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:35:34,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:35:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:35:44,743 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 04:36:38,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:36:38,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 249 states and 506 transitions. [2021-11-21 04:36:38,255 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 506 transitions. [2021-11-21 04:36:38,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-21 04:36:38,256 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:36:38,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:36:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:36:48,074 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:38:03,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:38:03,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 273 states and 559 transitions. [2021-11-21 04:38:03,431 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 559 transitions. [2021-11-21 04:38:03,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-21 04:38:03,432 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:38:03,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:38:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:38:03,462 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-21 04:38:18,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:38:18,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 279 states and 574 transitions. [2021-11-21 04:38:18,910 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 574 transitions. [2021-11-21 04:38:18,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-21 04:38:18,911 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:38:18,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:38:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:38:19,017 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:38:39,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:38:39,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 286 states and 597 transitions. [2021-11-21 04:38:39,638 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 597 transitions. [2021-11-21 04:38:39,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 04:38:39,639 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:38:39,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:38:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:38:52,462 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 04:40:10,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:40:10,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 303 states and 650 transitions. [2021-11-21 04:40:10,953 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 650 transitions. [2021-11-21 04:40:10,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 04:40:10,954 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:40:10,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:40:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:40:10,986 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.