./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem03_label16.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_f28b74fa-8313-4164-a7c2-af5fd2273cb5/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b74fa-8313-4164-a7c2-af5fd2273cb5/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_f28b74fa-8313-4164-a7c2-af5fd2273cb5/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b74fa-8313-4164-a7c2-af5fd2273cb5/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem03_label16.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b74fa-8313-4164-a7c2-af5fd2273cb5/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_f28b74fa-8313-4164-a7c2-af5fd2273cb5/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 b3ca7ac045e48d38881d30e6a93ef4c7dacfed0b5d9d8607f5d28bf43102d8b7 --- 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 16:38:56,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:38:56,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:38:56,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:38:56,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:38:56,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:38:57,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:38:57,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:38:57,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:38:57,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:38:57,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:38:57,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:38:57,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:38:57,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:38:57,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:38:57,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:38:57,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:38:57,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:38:57,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:38:57,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:38:57,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:38:57,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:38:57,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:38:57,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:38:57,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:38:57,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:38:57,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:38:57,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:38:57,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:38:57,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:38:57,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:38:57,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:38:57,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:38:57,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:38:57,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:38:57,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:38:57,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:38:57,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:38:57,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:38:57,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:38:57,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:38:57,085 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b74fa-8313-4164-a7c2-af5fd2273cb5/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:38:57,127 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:38:57,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:38:57,128 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:38:57,128 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:38:57,129 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:38:57,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:38:57,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:38:57,130 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:38:57,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:38:57,131 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:38:57,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:38:57,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:38:57,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:38:57,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:38:57,132 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:38:57,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:38:57,132 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:38:57,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:38:57,133 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:38:57,133 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:38:57,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:38:57,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:38:57,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:38:57,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:38:57,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:38:57,135 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:38:57,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:38:57,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:38:57,135 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_f28b74fa-8313-4164-a7c2-af5fd2273cb5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b74fa-8313-4164-a7c2-af5fd2273cb5/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3ca7ac045e48d38881d30e6a93ef4c7dacfed0b5d9d8607f5d28bf43102d8b7 [2022-10-17 16:38:57,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:38:57,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:38:57,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:38:57,490 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:38:57,494 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:38:57,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b74fa-8313-4164-a7c2-af5fd2273cb5/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/eca-rers2012/Problem03_label16.c [2022-10-17 16:38:57,599 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b74fa-8313-4164-a7c2-af5fd2273cb5/bin/ukojak-92XMlrwhuB/data/52e082a56/37d43b666c2c4e9baa100b620d0ce2ac/FLAG64374ebf2 [2022-10-17 16:38:58,386 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:38:58,388 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b74fa-8313-4164-a7c2-af5fd2273cb5/sv-benchmarks/c/eca-rers2012/Problem03_label16.c [2022-10-17 16:38:58,412 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b74fa-8313-4164-a7c2-af5fd2273cb5/bin/ukojak-92XMlrwhuB/data/52e082a56/37d43b666c2c4e9baa100b620d0ce2ac/FLAG64374ebf2 [2022-10-17 16:38:58,481 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b74fa-8313-4164-a7c2-af5fd2273cb5/bin/ukojak-92XMlrwhuB/data/52e082a56/37d43b666c2c4e9baa100b620d0ce2ac [2022-10-17 16:38:58,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:38:58,486 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:38:58,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:38:58,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:38:58,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:38:58,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:38:58" (1/1) ... [2022-10-17 16:38:58,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3613f867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:58, skipping insertion in model container [2022-10-17 16:38:58,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:38:58" (1/1) ... [2022-10-17 16:38:58,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:38:58,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:38:59,277 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_f28b74fa-8313-4164-a7c2-af5fd2273cb5/sv-benchmarks/c/eca-rers2012/Problem03_label16.c[56490,56503] [2022-10-17 16:38:59,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:38:59,345 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:38:59,624 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_f28b74fa-8313-4164-a7c2-af5fd2273cb5/sv-benchmarks/c/eca-rers2012/Problem03_label16.c[56490,56503] [2022-10-17 16:38:59,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:38:59,669 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:38:59,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:59 WrapperNode [2022-10-17 16:38:59,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:38:59,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:38:59,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:38:59,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:38:59,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:59" (1/1) ... [2022-10-17 16:38:59,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:59" (1/1) ... [2022-10-17 16:38:59,899 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1771 [2022-10-17 16:38:59,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:38:59,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:38:59,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:38:59,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:38:59,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:59" (1/1) ... [2022-10-17 16:38:59,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:59" (1/1) ... [2022-10-17 16:38:59,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:59" (1/1) ... [2022-10-17 16:38:59,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:59" (1/1) ... [2022-10-17 16:39:00,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:59" (1/1) ... [2022-10-17 16:39:00,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:59" (1/1) ... [2022-10-17 16:39:00,050 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:59" (1/1) ... [2022-10-17 16:39:00,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:59" (1/1) ... [2022-10-17 16:39:00,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:39:00,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:39:00,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:39:00,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:39:00,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:59" (1/1) ... [2022-10-17 16:39:00,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:39:00,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b74fa-8313-4164-a7c2-af5fd2273cb5/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:39:00,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b74fa-8313-4164-a7c2-af5fd2273cb5/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:39:00,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b74fa-8313-4164-a7c2-af5fd2273cb5/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:39:00,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:39:00,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:39:00,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:39:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:39:00,344 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:39:00,346 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:39:02,717 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:39:03,143 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:39:03,143 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:39:03,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:39:03 BoogieIcfgContainer [2022-10-17 16:39:03,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:39:03,147 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:39:03,147 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:39:03,158 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:39:03,158 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:39:03" (1/1) ... [2022-10-17 16:39:03,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:39:03,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:03,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 148 states and 288 transitions. [2022-10-17 16:39:03,227 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 288 transitions. [2022-10-17 16:39:03,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-10-17 16:39:03,235 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:03,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:03,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:04,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:39:05,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:05,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 289 states and 500 transitions. [2022-10-17 16:39:05,687 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 500 transitions. [2022-10-17 16:39:05,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-10-17 16:39:05,692 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:05,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:06,174 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:39:06,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:06,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 292 states and 505 transitions. [2022-10-17 16:39:06,260 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 505 transitions. [2022-10-17 16:39:06,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-10-17 16:39:06,263 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:06,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:06,750 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:39:08,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:08,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 434 states and 697 transitions. [2022-10-17 16:39:08,594 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 697 transitions. [2022-10-17 16:39:08,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-10-17 16:39:08,604 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:08,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:08,860 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:39:09,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:09,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 441 states and 708 transitions. [2022-10-17 16:39:09,087 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 708 transitions. [2022-10-17 16:39:09,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-10-17 16:39:09,091 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:09,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:09,407 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:39:09,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:09,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 449 states and 721 transitions. [2022-10-17 16:39:09,704 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 721 transitions. [2022-10-17 16:39:09,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-10-17 16:39:09,709 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:09,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:10,501 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:39:11,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:11,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 459 states and 750 transitions. [2022-10-17 16:39:11,376 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 750 transitions. [2022-10-17 16:39:11,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-10-17 16:39:11,379 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:11,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:11,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:11,717 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:39:12,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:12,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 469 states and 766 transitions. [2022-10-17 16:39:12,476 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 766 transitions. [2022-10-17 16:39:12,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-10-17 16:39:12,479 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:12,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:12,827 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:39:13,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:13,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 470 states and 775 transitions. [2022-10-17 16:39:13,457 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 775 transitions. [2022-10-17 16:39:13,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-10-17 16:39:13,459 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:13,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:13,789 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:39:14,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:14,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 481 states and 794 transitions. [2022-10-17 16:39:14,796 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 794 transitions. [2022-10-17 16:39:14,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-10-17 16:39:14,798 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:14,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:15,032 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:39:15,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:15,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 485 states and 800 transitions. [2022-10-17 16:39:15,437 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 800 transitions. [2022-10-17 16:39:15,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-10-17 16:39:15,440 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:15,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:15,792 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:39:16,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:16,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 486 states and 803 transitions. [2022-10-17 16:39:16,073 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 803 transitions. [2022-10-17 16:39:16,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-10-17 16:39:16,078 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:16,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:16,386 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:39:16,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:16,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 489 states and 807 transitions. [2022-10-17 16:39:16,608 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 807 transitions. [2022-10-17 16:39:16,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-10-17 16:39:16,610 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:16,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:16,913 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:39:17,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:17,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 495 states and 815 transitions. [2022-10-17 16:39:17,086 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 815 transitions. [2022-10-17 16:39:17,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-10-17 16:39:17,089 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:17,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:17,452 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:39:18,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:18,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 499 states and 836 transitions. [2022-10-17 16:39:18,235 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 836 transitions. [2022-10-17 16:39:18,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-10-17 16:39:18,238 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:18,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:18,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:18,530 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:39:19,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:19,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 500 states and 844 transitions. [2022-10-17 16:39:19,003 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 844 transitions. [2022-10-17 16:39:19,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-10-17 16:39:19,008 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:19,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:19,323 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:39:19,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:19,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 507 states and 853 transitions. [2022-10-17 16:39:19,511 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 853 transitions. [2022-10-17 16:39:19,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-17 16:39:19,514 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:19,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:19,978 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:39:21,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:21,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 519 states and 870 transitions. [2022-10-17 16:39:21,029 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 870 transitions. [2022-10-17 16:39:21,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-10-17 16:39:21,032 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:21,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:21,318 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:39:22,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:22,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 530 states and 890 transitions. [2022-10-17 16:39:22,159 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 890 transitions. [2022-10-17 16:39:22,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-10-17 16:39:22,162 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:22,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:22,464 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:39:23,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:23,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 537 states and 900 transitions. [2022-10-17 16:39:23,010 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 900 transitions. [2022-10-17 16:39:23,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-10-17 16:39:23,012 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:23,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:23,280 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:39:23,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:23,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 539 states and 901 transitions. [2022-10-17 16:39:23,554 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 901 transitions. [2022-10-17 16:39:23,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-10-17 16:39:23,556 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:23,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:23,880 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 39 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.