./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f665efa4a665554cf7543e013a29ff4c6ab086907b4fe7628b89c7f514f54a81 --- 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-4e7fbc6 [2022-11-23 03:15:17,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:15:17,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:15:17,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:15:17,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:15:17,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:15:17,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:15:17,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:15:17,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:15:17,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:15:17,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:15:17,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:15:17,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:15:17,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:15:17,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:15:17,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:15:17,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:15:17,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:15:17,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:15:17,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:15:17,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:15:17,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:15:17,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:15:17,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:15:17,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:15:17,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:15:17,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:15:17,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:15:17,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:15:17,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:15:17,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:15:17,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:15:17,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:15:17,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:15:17,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:15:17,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:15:17,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:15:17,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:15:17,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:15:17,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:15:17,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:15:17,311 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-23 03:15:17,343 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:15:17,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:15:17,344 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:15:17,344 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:15:17,345 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:15:17,345 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:15:17,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:15:17,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:15:17,346 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:15:17,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:15:17,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:15:17,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:15:17,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:15:17,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:15:17,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:15:17,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:15:17,349 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:15:17,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:15:17,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:15:17,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:15:17,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:15:17,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:15:17,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:15:17,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:15:17,351 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:15:17,351 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:15:17,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:15:17,351 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:15:17,352 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:15:17,352 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:15:17,352 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:15:17,353 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f665efa4a665554cf7543e013a29ff4c6ab086907b4fe7628b89c7f514f54a81 [2022-11-23 03:15:17,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:15:17,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:15:17,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:15:17,669 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:15:17,669 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:15:17,671 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i [2022-11-23 03:15:20,736 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:15:21,372 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:15:21,373 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i [2022-11-23 03:15:21,422 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/data/518ce99fc/bffebd7fda4d43c2a22b292636c3ecd1/FLAGfce881e7d [2022-11-23 03:15:21,442 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/data/518ce99fc/bffebd7fda4d43c2a22b292636c3ecd1 [2022-11-23 03:15:21,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:15:21,450 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:15:21,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:15:21,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:15:21,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:15:21,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:15:21" (1/1) ... [2022-11-23 03:15:21,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297e0b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:21, skipping insertion in model container [2022-11-23 03:15:21,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:15:21" (1/1) ... [2022-11-23 03:15:21,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:15:21,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:15:24,115 WARN L237 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_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i[298813,298826] [2022-11-23 03:15:24,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:15:24,233 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:15:24,704 WARN L237 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_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i[298813,298826] [2022-11-23 03:15:24,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:15:24,836 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:15:24,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:24 WrapperNode [2022-11-23 03:15:24,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:15:24,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:15:24,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:15:24,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:15:24,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:24" (1/1) ... [2022-11-23 03:15:24,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:24" (1/1) ... [2022-11-23 03:15:25,188 INFO L138 Inliner]: procedures = 237, calls = 2068, calls flagged for inlining = 107, calls inlined = 104, statements flattened = 4538 [2022-11-23 03:15:25,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:15:25,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:15:25,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:15:25,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:15:25,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:24" (1/1) ... [2022-11-23 03:15:25,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:24" (1/1) ... [2022-11-23 03:15:25,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:24" (1/1) ... [2022-11-23 03:15:25,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:24" (1/1) ... [2022-11-23 03:15:25,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:24" (1/1) ... [2022-11-23 03:15:25,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:24" (1/1) ... [2022-11-23 03:15:25,462 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:24" (1/1) ... [2022-11-23 03:15:25,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:24" (1/1) ... [2022-11-23 03:15:25,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:15:25,522 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:15:25,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:15:25,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:15:25,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:24" (1/1) ... [2022-11-23 03:15:25,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:15:25,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:15:25,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:15:25,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:15:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2022-11-23 03:15:25,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2022-11-23 03:15:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_ioctl [2022-11-23 03:15:25,625 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_ioctl [2022-11-23 03:15:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 03:15:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 03:15:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 03:15:25,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 03:15:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2022-11-23 03:15:25,627 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2022-11-23 03:15:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 03:15:25,627 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 03:15:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2022-11-23 03:15:25,627 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2022-11-23 03:15:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2022-11-23 03:15:25,628 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2022-11-23 03:15:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-23 03:15:25,628 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-23 03:15:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-23 03:15:25,628 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-23 03:15:25,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-23 03:15:25,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-23 03:15:25,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 03:15:25,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 03:15:25,629 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-11-23 03:15:25,630 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-11-23 03:15:25,630 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2022-11-23 03:15:25,630 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2022-11-23 03:15:25,630 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-23 03:15:25,630 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-23 03:15:25,630 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2022-11-23 03:15:25,631 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2022-11-23 03:15:25,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 03:15:25,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 03:15:25,632 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2022-11-23 03:15:25,633 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2022-11-23 03:15:25,633 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2022-11-23 03:15:25,634 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2022-11-23 03:15:25,634 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 03:15:25,634 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 03:15:25,634 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-23 03:15:25,634 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-23 03:15:25,635 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2022-11-23 03:15:25,635 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2022-11-23 03:15:25,635 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-23 03:15:25,635 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-23 03:15:25,636 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2022-11-23 03:15:25,636 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2022-11-23 03:15:25,636 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-23 03:15:25,636 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-23 03:15:25,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:15:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 03:15:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2022-11-23 03:15:25,637 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2022-11-23 03:15:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2022-11-23 03:15:25,637 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2022-11-23 03:15:25,638 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-23 03:15:25,638 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-23 03:15:25,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-23 03:15:25,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-23 03:15:25,639 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2022-11-23 03:15:25,640 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2022-11-23 03:15:25,640 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 03:15:25,640 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 03:15:25,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:15:25,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 03:15:25,640 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2022-11-23 03:15:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2022-11-23 03:15:25,641 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2022-11-23 03:15:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2022-11-23 03:15:25,641 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-23 03:15:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-23 03:15:25,643 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-23 03:15:25,643 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-23 03:15:25,643 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2022-11-23 03:15:25,643 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2022-11-23 03:15:25,644 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-23 03:15:25,644 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-23 03:15:25,644 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-23 03:15:25,644 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-23 03:15:25,645 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 03:15:25,645 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 03:15:25,645 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2022-11-23 03:15:25,646 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2022-11-23 03:15:25,646 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2022-11-23 03:15:25,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2022-11-23 03:15:25,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 03:15:25,647 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2022-11-23 03:15:25,647 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2022-11-23 03:15:25,648 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2022-11-23 03:15:25,648 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2022-11-23 03:15:25,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 03:15:25,648 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2022-11-23 03:15:25,648 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2022-11-23 03:15:25,649 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-23 03:15:25,649 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-23 03:15:25,649 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2022-11-23 03:15:25,649 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2022-11-23 03:15:25,649 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-23 03:15:25,650 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-23 03:15:25,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:15:25,651 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-23 03:15:25,651 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-23 03:15:25,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 03:15:25,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 03:15:25,651 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2022-11-23 03:15:25,652 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2022-11-23 03:15:25,652 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-23 03:15:25,652 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-23 03:15:25,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-23 03:15:25,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-23 03:15:25,653 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2022-11-23 03:15:25,653 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2022-11-23 03:15:25,653 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-23 03:15:25,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-23 03:15:25,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:15:25,655 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-23 03:15:25,655 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-23 03:15:25,658 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-23 03:15:25,659 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-23 03:15:25,659 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2022-11-23 03:15:25,660 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2022-11-23 03:15:25,660 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-23 03:15:25,662 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-23 03:15:25,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 03:15:25,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 03:15:25,664 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2022-11-23 03:15:25,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2022-11-23 03:15:25,668 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2022-11-23 03:15:25,669 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2022-11-23 03:15:25,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-23 03:15:25,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-23 03:15:25,669 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2022-11-23 03:15:25,669 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2022-11-23 03:15:25,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 03:15:25,670 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2022-11-23 03:15:25,670 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2022-11-23 03:15:25,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-23 03:15:25,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-23 03:15:25,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:15:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 03:15:25,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 03:15:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 03:15:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-23 03:15:25,671 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-23 03:15:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 03:15:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-23 03:15:25,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-23 03:15:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2022-11-23 03:15:25,672 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2022-11-23 03:15:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2022-11-23 03:15:25,672 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2022-11-23 03:15:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2022-11-23 03:15:25,673 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2022-11-23 03:15:25,673 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2022-11-23 03:15:25,673 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2022-11-23 03:15:25,673 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2022-11-23 03:15:25,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2022-11-23 03:15:25,673 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2022-11-23 03:15:25,674 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2022-11-23 03:15:25,674 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2022-11-23 03:15:25,674 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2022-11-23 03:15:25,674 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-23 03:15:25,674 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-23 03:15:25,674 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2022-11-23 03:15:25,675 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2022-11-23 03:15:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-23 03:15:25,675 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-23 03:15:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-23 03:15:25,675 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-23 03:15:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:15:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-23 03:15:25,676 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-23 03:15:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2022-11-23 03:15:25,677 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2022-11-23 03:15:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2022-11-23 03:15:25,677 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2022-11-23 03:15:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:15:25,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:15:26,657 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:15:26,662 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:15:27,252 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 03:15:34,172 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:15:34,203 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:15:34,203 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 03:15:34,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:15:34 BoogieIcfgContainer [2022-11-23 03:15:34,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:15:34,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:15:34,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:15:34,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:15:34,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:15:21" (1/3) ... [2022-11-23 03:15:34,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2e31ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:15:34, skipping insertion in model container [2022-11-23 03:15:34,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:24" (2/3) ... [2022-11-23 03:15:34,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2e31ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:15:34, skipping insertion in model container [2022-11-23 03:15:34,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:15:34" (3/3) ... [2022-11-23 03:15:34,224 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i [2022-11-23 03:15:34,244 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:15:34,245 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 03:15:34,367 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:15:34,379 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3da3ba8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:15:34,380 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 03:15:34,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 1825 states, 1125 states have (on average 1.304888888888889) internal successors, (1468), 1156 states have internal predecessors, (1468), 618 states have call successors, (618), 81 states have call predecessors, (618), 80 states have return successors, (611), 600 states have call predecessors, (611), 611 states have call successors, (611) [2022-11-23 03:15:34,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-23 03:15:34,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:15:34,462 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:15:34,463 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:15:34,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:15:34,471 INFO L85 PathProgramCache]: Analyzing trace with hash -389244476, now seen corresponding path program 1 times [2022-11-23 03:15:34,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:15:34,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986599923] [2022-11-23 03:15:34,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:15:34,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:15:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:15:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:15:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:15:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:15:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:15:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:15:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-23 03:15:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:15:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:15:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-23 03:15:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:15:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:15:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-23 03:15:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:15:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:15:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-23 03:15:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-23 03:15:35,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-23 03:15:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-23 03:15:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-23 03:15:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:15:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-23 03:15:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-23 03:15:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:15:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-23 03:15:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-23 03:15:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:15:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:15:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-23 03:15:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:15:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:35,911 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-23 03:15:35,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:15:35,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986599923] [2022-11-23 03:15:35,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986599923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:15:35,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:15:35,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:15:35,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478356735] [2022-11-23 03:15:35,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:15:35,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:15:35,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:15:35,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:15:35,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:15:35,964 INFO L87 Difference]: Start difference. First operand has 1825 states, 1125 states have (on average 1.304888888888889) internal successors, (1468), 1156 states have internal predecessors, (1468), 618 states have call successors, (618), 81 states have call predecessors, (618), 80 states have return successors, (611), 600 states have call predecessors, (611), 611 states have call successors, (611) Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:15:41,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:15:42,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:15:43,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:15:55,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:15:55,269 INFO L93 Difference]: Finished difference Result 3704 states and 5522 transitions. [2022-11-23 03:15:55,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:15:55,277 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 192 [2022-11-23 03:15:55,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:15:55,311 INFO L225 Difference]: With dead ends: 3704 [2022-11-23 03:15:55,311 INFO L226 Difference]: Without dead ends: 1866 [2022-11-23 03:15:55,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:15:55,341 INFO L413 NwaCegarLoop]: 1011 mSDtfsCounter, 1992 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 5261 mSolverCounterSat, 2028 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2263 SdHoareTripleChecker+Valid, 2947 SdHoareTripleChecker+Invalid, 7289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2028 IncrementalHoareTripleChecker+Valid, 5261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2022-11-23 03:15:55,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2263 Valid, 2947 Invalid, 7289 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2028 Valid, 5261 Invalid, 0 Unknown, 0 Unchecked, 18.7s Time] [2022-11-23 03:15:55,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2022-11-23 03:15:55,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1807. [2022-11-23 03:15:55,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1807 states, 1116 states have (on average 1.2974910394265233) internal successors, (1448), 1138 states have internal predecessors, (1448), 611 states have call successors, (611), 80 states have call predecessors, (611), 79 states have return successors, (610), 599 states have call predecessors, (610), 610 states have call successors, (610) [2022-11-23 03:15:55,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2669 transitions. [2022-11-23 03:15:55,644 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2669 transitions. Word has length 192 [2022-11-23 03:15:55,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:15:55,645 INFO L495 AbstractCegarLoop]: Abstraction has 1807 states and 2669 transitions. [2022-11-23 03:15:55,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:15:55,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2669 transitions. [2022-11-23 03:15:55,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-23 03:15:55,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:15:55,661 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:15:55,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:15:55,662 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:15:55,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:15:55,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1527541554, now seen corresponding path program 1 times [2022-11-23 03:15:55,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:15:55,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458677580] [2022-11-23 03:15:55,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:15:55,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:15:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:15:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:15:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:15:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:15:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:15:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:15:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-23 03:15:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:15:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:15:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-23 03:15:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:15:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:15:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-23 03:15:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:15:56,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:15:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-23 03:15:56,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-23 03:15:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-23 03:15:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-23 03:15:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-23 03:15:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:15:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-23 03:15:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-23 03:15:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:15:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-23 03:15:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-23 03:15:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:15:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:15:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-23 03:15:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:15:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:15:56,809 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-23 03:15:56,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:15:56,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458677580] [2022-11-23 03:15:56,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458677580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:15:56,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:15:56,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:15:56,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229043068] [2022-11-23 03:15:56,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:15:56,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 03:15:56,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:15:56,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 03:15:56,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:15:56,814 INFO L87 Difference]: Start difference. First operand 1807 states and 2669 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-23 03:16:06,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:16:08,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:16:21,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:16:22,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:16:31,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:16:31,547 INFO L93 Difference]: Finished difference Result 5498 states and 8174 transitions. [2022-11-23 03:16:31,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 03:16:31,548 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 192 [2022-11-23 03:16:31,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:16:31,577 INFO L225 Difference]: With dead ends: 5498 [2022-11-23 03:16:31,577 INFO L226 Difference]: Without dead ends: 3713 [2022-11-23 03:16:31,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-11-23 03:16:31,593 INFO L413 NwaCegarLoop]: 1200 mSDtfsCounter, 5389 mSDsluCounter, 4333 mSDsCounter, 0 mSdLazyCounter, 14275 mSolverCounterSat, 5354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5863 SdHoareTripleChecker+Valid, 5533 SdHoareTripleChecker+Invalid, 19629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5354 IncrementalHoareTripleChecker+Valid, 14275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:16:31,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5863 Valid, 5533 Invalid, 19629 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5354 Valid, 14275 Invalid, 0 Unknown, 0 Unchecked, 33.6s Time] [2022-11-23 03:16:31,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3713 states. [2022-11-23 03:16:31,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3713 to 3592. [2022-11-23 03:16:31,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3592 states, 2216 states have (on average 1.2969314079422383) internal successors, (2874), 2267 states have internal predecessors, (2874), 1214 states have call successors, (1214), 159 states have call predecessors, (1214), 161 states have return successors, (1228), 1187 states have call predecessors, (1228), 1213 states have call successors, (1228) [2022-11-23 03:16:31,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3592 states to 3592 states and 5316 transitions. [2022-11-23 03:16:31,941 INFO L78 Accepts]: Start accepts. Automaton has 3592 states and 5316 transitions. Word has length 192 [2022-11-23 03:16:31,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:16:31,947 INFO L495 AbstractCegarLoop]: Abstraction has 3592 states and 5316 transitions. [2022-11-23 03:16:31,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-23 03:16:31,948 INFO L276 IsEmpty]: Start isEmpty. Operand 3592 states and 5316 transitions. [2022-11-23 03:16:31,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-23 03:16:31,961 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:16:31,961 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:16:31,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:16:31,961 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:16:31,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:16:31,963 INFO L85 PathProgramCache]: Analyzing trace with hash 23935025, now seen corresponding path program 1 times [2022-11-23 03:16:31,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:16:31,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620885286] [2022-11-23 03:16:31,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:16:31,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:16:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:16:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:16:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:16:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:16:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:16:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:16:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-23 03:16:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:16:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:16:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-23 03:16:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:16:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:16:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-23 03:16:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:16:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:16:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-23 03:16:32,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-23 03:16:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-23 03:16:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-23 03:16:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-23 03:16:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:16:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-23 03:16:32,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-23 03:16:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:16:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-23 03:16:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-23 03:16:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:16:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:16:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-23 03:16:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:16:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:16:32,885 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-23 03:16:32,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:16:32,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620885286] [2022-11-23 03:16:32,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620885286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:16:32,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:16:32,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:16:32,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471647460] [2022-11-23 03:16:32,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:16:32,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 03:16:32,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:16:32,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 03:16:32,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:16:32,890 INFO L87 Difference]: Start difference. First operand 3592 states and 5316 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-23 03:16:38,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:16:39,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:16:41,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:16:42,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:16:45,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:16:46,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:16:48,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:17:00,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:17:02,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:17:06,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:17:10,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:17:10,373 INFO L93 Difference]: Finished difference Result 10965 states and 16330 transitions. [2022-11-23 03:17:10,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 03:17:10,374 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 194 [2022-11-23 03:17:10,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:17:10,429 INFO L225 Difference]: With dead ends: 10965 [2022-11-23 03:17:10,429 INFO L226 Difference]: Without dead ends: 7395 [2022-11-23 03:17:10,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-11-23 03:17:10,461 INFO L413 NwaCegarLoop]: 1188 mSDtfsCounter, 5527 mSDsluCounter, 3837 mSDsCounter, 0 mSdLazyCounter, 12886 mSolverCounterSat, 5367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5999 SdHoareTripleChecker+Valid, 5025 SdHoareTripleChecker+Invalid, 18253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5367 IncrementalHoareTripleChecker+Valid, 12886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.4s IncrementalHoareTripleChecker+Time [2022-11-23 03:17:10,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5999 Valid, 5025 Invalid, 18253 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5367 Valid, 12886 Invalid, 0 Unknown, 0 Unchecked, 36.4s Time] [2022-11-23 03:17:10,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7395 states. [2022-11-23 03:17:11,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7395 to 7164. [2022-11-23 03:17:11,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7164 states, 4421 states have (on average 1.2965392445148156) internal successors, (5732), 4523 states have internal predecessors, (5732), 2419 states have call successors, (2419), 317 states have call predecessors, (2419), 323 states have return successors, (2470), 2367 states have call predecessors, (2470), 2418 states have call successors, (2470) [2022-11-23 03:17:11,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7164 states to 7164 states and 10621 transitions. [2022-11-23 03:17:11,170 INFO L78 Accepts]: Start accepts. Automaton has 7164 states and 10621 transitions. Word has length 194 [2022-11-23 03:17:11,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:17:11,171 INFO L495 AbstractCegarLoop]: Abstraction has 7164 states and 10621 transitions. [2022-11-23 03:17:11,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-23 03:17:11,172 INFO L276 IsEmpty]: Start isEmpty. Operand 7164 states and 10621 transitions. [2022-11-23 03:17:11,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-23 03:17:11,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:17:11,185 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:17:11,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:17:11,186 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:17:11,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:17:11,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1298246393, now seen corresponding path program 1 times [2022-11-23 03:17:11,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:17:11,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017682247] [2022-11-23 03:17:11,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:17:11,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:17:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:17:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:17:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:17:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:17:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-23 03:17:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:17:11,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-23 03:17:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:17:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-23 03:17:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:17:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-23 03:17:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-23 03:17:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-23 03:17:11,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-23 03:17:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-23 03:17:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-23 03:17:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-23 03:17:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-23 03:17:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-23 03:17:11,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-23 03:17:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:11,962 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-23 03:17:11,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:17:11,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017682247] [2022-11-23 03:17:11,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017682247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:17:11,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:17:11,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:17:11,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474629128] [2022-11-23 03:17:11,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:17:11,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 03:17:11,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:17:11,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 03:17:11,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:17:11,966 INFO L87 Difference]: Start difference. First operand 7164 states and 10621 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-23 03:17:18,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:17:20,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:17:21,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:17:22,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:17:26,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:17:28,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:17:29,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:17:31,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:17:42,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:17:44,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:17:47,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:17:55,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:17:55,329 INFO L93 Difference]: Finished difference Result 21905 states and 32668 transitions. [2022-11-23 03:17:55,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 03:17:55,329 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 193 [2022-11-23 03:17:55,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:17:55,462 INFO L225 Difference]: With dead ends: 21905 [2022-11-23 03:17:55,462 INFO L226 Difference]: Without dead ends: 14763 [2022-11-23 03:17:55,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-11-23 03:17:55,514 INFO L413 NwaCegarLoop]: 1187 mSDtfsCounter, 5563 mSDsluCounter, 3827 mSDsCounter, 0 mSdLazyCounter, 12823 mSolverCounterSat, 5381 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6035 SdHoareTripleChecker+Valid, 5014 SdHoareTripleChecker+Invalid, 18205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5381 IncrementalHoareTripleChecker+Valid, 12823 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:17:55,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6035 Valid, 5014 Invalid, 18205 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5381 Valid, 12823 Invalid, 1 Unknown, 0 Unchecked, 42.0s Time] [2022-11-23 03:17:55,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14763 states. [2022-11-23 03:17:56,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14763 to 14310. [2022-11-23 03:17:56,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14310 states, 8833 states have (on average 1.2958224838673158) internal successors, (11446), 9036 states have internal predecessors, (11446), 4828 states have call successors, (4828), 634 states have call predecessors, (4828), 648 states have return successors, (4973), 4727 states have call predecessors, (4973), 4827 states have call successors, (4973) [2022-11-23 03:17:56,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14310 states to 14310 states and 21247 transitions. [2022-11-23 03:17:56,917 INFO L78 Accepts]: Start accepts. Automaton has 14310 states and 21247 transitions. Word has length 193 [2022-11-23 03:17:56,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:17:56,919 INFO L495 AbstractCegarLoop]: Abstraction has 14310 states and 21247 transitions. [2022-11-23 03:17:56,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-23 03:17:56,920 INFO L276 IsEmpty]: Start isEmpty. Operand 14310 states and 21247 transitions. [2022-11-23 03:17:56,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-23 03:17:56,932 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:17:56,932 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:17:56,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:17:56,933 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:17:56,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:17:56,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1444005253, now seen corresponding path program 1 times [2022-11-23 03:17:56,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:17:56,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363850342] [2022-11-23 03:17:56,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:17:56,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:17:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:17:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:57,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:17:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:17:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:17:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-23 03:17:57,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:17:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-23 03:17:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:17:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-23 03:17:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:17:57,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-23 03:17:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-23 03:17:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-23 03:17:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-23 03:17:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-23 03:17:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-23 03:17:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-23 03:17:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-23 03:17:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-23 03:17:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:57,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-23 03:17:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:17:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-23 03:17:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:17:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,874 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-23 03:17:57,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:17:57,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363850342] [2022-11-23 03:17:57,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363850342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:17:57,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:17:57,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:17:57,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642351145] [2022-11-23 03:17:57,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:17:57,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 03:17:57,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:17:57,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 03:17:57,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:17:57,878 INFO L87 Difference]: Start difference. First operand 14310 states and 21247 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-23 03:18:02,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:18:04,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:18:06,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:18:07,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:18:11,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 03:18:31,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:31,443 INFO L93 Difference]: Finished difference Result 43320 states and 64669 transitions. [2022-11-23 03:18:31,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 03:18:31,444 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 217 [2022-11-23 03:18:31,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:31,747 INFO L225 Difference]: With dead ends: 43320 [2022-11-23 03:18:31,747 INFO L226 Difference]: Without dead ends: 29032 [2022-11-23 03:18:31,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-11-23 03:18:31,829 INFO L413 NwaCegarLoop]: 1184 mSDtfsCounter, 5600 mSDsluCounter, 3817 mSDsCounter, 0 mSdLazyCounter, 12642 mSolverCounterSat, 5438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6072 SdHoareTripleChecker+Valid, 5001 SdHoareTripleChecker+Invalid, 18080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5438 IncrementalHoareTripleChecker+Valid, 12642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:31,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6072 Valid, 5001 Invalid, 18080 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5438 Valid, 12642 Invalid, 0 Unknown, 0 Unchecked, 31.6s Time] [2022-11-23 03:18:31,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29032 states. [2022-11-23 03:18:33,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29032 to 28176. [2022-11-23 03:18:33,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28176 states, 17372 states have (on average 1.2942090720699977) internal successors, (22483), 17768 states have internal predecessors, (22483), 9519 states have call successors, (9519), 1254 states have call predecessors, (9519), 1284 states have return successors, (9890), 9324 states have call predecessors, (9890), 9518 states have call successors, (9890) [2022-11-23 03:18:34,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28176 states to 28176 states and 41892 transitions. [2022-11-23 03:18:34,318 INFO L78 Accepts]: Start accepts. Automaton has 28176 states and 41892 transitions. Word has length 217 [2022-11-23 03:18:34,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:34,320 INFO L495 AbstractCegarLoop]: Abstraction has 28176 states and 41892 transitions. [2022-11-23 03:18:34,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-23 03:18:34,321 INFO L276 IsEmpty]: Start isEmpty. Operand 28176 states and 41892 transitions. [2022-11-23 03:18:34,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-23 03:18:34,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:34,337 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:34,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 03:18:34,338 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:18:34,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:34,338 INFO L85 PathProgramCache]: Analyzing trace with hash -618899695, now seen corresponding path program 1 times [2022-11-23 03:18:34,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:34,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384325951] [2022-11-23 03:18:34,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:34,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:18:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:18:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:18:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:18:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-23 03:18:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:35,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:18:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-23 03:18:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:18:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-23 03:18:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:18:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-23 03:18:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-23 03:18:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-23 03:18:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-23 03:18:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-23 03:18:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-23 03:18:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-23 03:18:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-23 03:18:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-23 03:18:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-23 03:18:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-23 03:18:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,570 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-23 03:18:35,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:35,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384325951] [2022-11-23 03:18:35,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384325951] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:35,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80523904] [2022-11-23 03:18:35,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:35,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:35,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:35,578 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:35,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 03:18:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:36,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 3276 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 03:18:36,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:36,936 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-23 03:18:36,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:18:36,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80523904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:18:36,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:18:36,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-11-23 03:18:36,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519429082] [2022-11-23 03:18:36,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:18:36,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:18:36,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:36,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:18:36,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-11-23 03:18:36,945 INFO L87 Difference]: Start difference. First operand 28176 states and 41892 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 03:18:39,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:39,566 INFO L93 Difference]: Finished difference Result 70374 states and 104678 transitions. [2022-11-23 03:18:39,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:18:39,567 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 205 [2022-11-23 03:18:39,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:39,992 INFO L225 Difference]: With dead ends: 70374 [2022-11-23 03:18:39,992 INFO L226 Difference]: Without dead ends: 42220 [2022-11-23 03:18:40,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2022-11-23 03:18:40,158 INFO L413 NwaCegarLoop]: 3973 mSDtfsCounter, 2694 mSDsluCounter, 18522 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2698 SdHoareTripleChecker+Valid, 22495 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:40,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2698 Valid, 22495 Invalid, 82 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:18:40,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42220 states. [2022-11-23 03:18:43,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42220 to 42071. [2022-11-23 03:18:44,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42071 states, 25941 states have (on average 1.2945530241702325) internal successors, (33582), 26541 states have internal predecessors, (33582), 14206 states have call successors, (14206), 1870 states have call predecessors, (14206), 1923 states have return successors, (14853), 13913 states have call predecessors, (14853), 14205 states have call successors, (14853) [2022-11-23 03:18:44,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42071 states to 42071 states and 62641 transitions. [2022-11-23 03:18:44,357 INFO L78 Accepts]: Start accepts. Automaton has 42071 states and 62641 transitions. Word has length 205 [2022-11-23 03:18:44,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:44,357 INFO L495 AbstractCegarLoop]: Abstraction has 42071 states and 62641 transitions. [2022-11-23 03:18:44,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 03:18:44,358 INFO L276 IsEmpty]: Start isEmpty. Operand 42071 states and 62641 transitions. [2022-11-23 03:18:44,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-23 03:18:44,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:44,379 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:44,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:18:44,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-23 03:18:44,600 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:18:44,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:44,600 INFO L85 PathProgramCache]: Analyzing trace with hash 680156939, now seen corresponding path program 1 times [2022-11-23 03:18:44,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:44,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721035030] [2022-11-23 03:18:44,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:44,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:45,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:18:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:45,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:45,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:18:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:45,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:18:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:45,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:45,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:18:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:45,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-23 03:18:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:45,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:45,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:45,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:18:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:45,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-23 03:18:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:45,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:45,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:18:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:45,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-23 03:18:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:45,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:45,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:18:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:45,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-23 03:18:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:45,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-23 03:18:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:45,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-23 03:18:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:46,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-23 03:18:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:46,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-23 03:18:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:46,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-23 03:18:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:46,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:46,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-23 03:18:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:46,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-23 03:18:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:46,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:46,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:46,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-23 03:18:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:46,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-23 03:18:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:46,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:46,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:46,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-23 03:18:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:46,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:46,152 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-23 03:18:46,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:46,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721035030] [2022-11-23 03:18:46,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721035030] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:46,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506127390] [2022-11-23 03:18:46,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:46,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:46,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:46,156 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:46,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 03:18:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:47,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 3278 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 03:18:47,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:47,843 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-23 03:18:47,845 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:18:47,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506127390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:18:47,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:18:47,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2022-11-23 03:18:47,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437623940] [2022-11-23 03:18:47,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:18:47,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:18:47,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:47,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:18:47,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-11-23 03:18:47,850 INFO L87 Difference]: Start difference. First operand 42071 states and 62641 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 03:18:51,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:51,403 INFO L93 Difference]: Finished difference Result 98217 states and 146222 transitions. [2022-11-23 03:18:51,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:18:51,404 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 206 [2022-11-23 03:18:51,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:51,895 INFO L225 Difference]: With dead ends: 98217 [2022-11-23 03:18:51,895 INFO L226 Difference]: Without dead ends: 56168 [2022-11-23 03:18:52,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2022-11-23 03:18:52,173 INFO L413 NwaCegarLoop]: 4047 mSDtfsCounter, 2694 mSDsluCounter, 18806 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2698 SdHoareTripleChecker+Valid, 22853 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:52,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2698 Valid, 22853 Invalid, 84 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:18:52,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56168 states. [2022-11-23 03:18:55,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56168 to 55998. [2022-11-23 03:18:55,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55998 states, 34530 states have (on average 1.294555459021141) internal successors, (44701), 35350 states have internal predecessors, (44701), 18893 states have call successors, (18893), 2486 states have call predecessors, (18893), 2574 states have return successors, (19828), 18498 states have call predecessors, (19828), 18892 states have call successors, (19828) [2022-11-23 03:18:56,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55998 states to 55998 states and 83422 transitions. [2022-11-23 03:18:56,154 INFO L78 Accepts]: Start accepts. Automaton has 55998 states and 83422 transitions. Word has length 206 [2022-11-23 03:18:56,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:56,155 INFO L495 AbstractCegarLoop]: Abstraction has 55998 states and 83422 transitions. [2022-11-23 03:18:56,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 03:18:56,155 INFO L276 IsEmpty]: Start isEmpty. Operand 55998 states and 83422 transitions. [2022-11-23 03:18:56,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-23 03:18:56,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:56,189 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:56,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 03:18:56,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-23 03:18:56,404 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:18:56,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:56,405 INFO L85 PathProgramCache]: Analyzing trace with hash 189862168, now seen corresponding path program 1 times [2022-11-23 03:18:56,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:56,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948763543] [2022-11-23 03:18:56,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:56,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:18:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:57,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:18:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:18:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:18:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-23 03:18:57,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:57,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:18:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-23 03:18:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:18:57,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-23 03:18:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:57,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:18:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-23 03:18:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-23 03:18:57,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-23 03:18:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-23 03:18:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-23 03:18:57,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-23 03:18:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-23 03:18:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-23 03:18:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-23 03:18:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-23 03:18:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:57,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-23 03:18:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:18:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,988 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-23 03:18:57,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:57,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948763543] [2022-11-23 03:18:57,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948763543] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:57,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981158581] [2022-11-23 03:18:57,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:57,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:57,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:57,991 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:58,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 03:18:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:59,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 3280 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 03:18:59,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:59,237 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-23 03:18:59,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:18:59,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981158581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:18:59,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:18:59,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2022-11-23 03:18:59,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151462246] [2022-11-23 03:18:59,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:18:59,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:18:59,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:59,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:18:59,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-11-23 03:18:59,245 INFO L87 Difference]: Start difference. First operand 55998 states and 83422 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 03:19:03,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:19:03,264 INFO L93 Difference]: Finished difference Result 126060 states and 187766 transitions. [2022-11-23 03:19:03,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:19:03,265 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 207 [2022-11-23 03:19:03,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:19:03,723 INFO L225 Difference]: With dead ends: 126060 [2022-11-23 03:19:03,723 INFO L226 Difference]: Without dead ends: 70084 [2022-11-23 03:19:03,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2022-11-23 03:19:03,982 INFO L413 NwaCegarLoop]: 4068 mSDtfsCounter, 2694 mSDsluCounter, 18890 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2698 SdHoareTripleChecker+Valid, 22958 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:19:03,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2698 Valid, 22958 Invalid, 84 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:19:04,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70084 states. [2022-11-23 03:19:07,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70084 to 56020. [2022-11-23 03:19:07,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56020 states, 34546 states have (on average 1.2944190354889133) internal successors, (44717), 35368 states have internal predecessors, (44717), 18893 states have call successors, (18893), 2486 states have call predecessors, (18893), 2580 states have return successors, (19837), 18502 states have call predecessors, (19837), 18892 states have call successors, (19837) [2022-11-23 03:19:07,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56020 states to 56020 states and 83447 transitions. [2022-11-23 03:19:07,992 INFO L78 Accepts]: Start accepts. Automaton has 56020 states and 83447 transitions. Word has length 207 [2022-11-23 03:19:07,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:19:07,993 INFO L495 AbstractCegarLoop]: Abstraction has 56020 states and 83447 transitions. [2022-11-23 03:19:07,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 03:19:07,993 INFO L276 IsEmpty]: Start isEmpty. Operand 56020 states and 83447 transitions. [2022-11-23 03:19:08,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-23 03:19:08,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:19:08,022 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:19:08,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 03:19:08,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:19:08,234 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:19:08,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:19:08,235 INFO L85 PathProgramCache]: Analyzing trace with hash 64248690, now seen corresponding path program 1 times [2022-11-23 03:19:08,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:19:08,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184911992] [2022-11-23 03:19:08,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:19:08,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:19:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:08,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:19:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:08,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:19:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:08,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:19:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:08,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:19:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:08,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:19:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:08,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:19:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:08,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-23 03:19:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:08,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:19:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:08,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:19:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:08,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-23 03:19:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:08,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:19:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:08,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:19:08,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:08,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-23 03:19:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:09,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:19:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:09,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:19:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:09,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-23 03:19:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:09,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-23 03:19:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:09,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-23 03:19:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:09,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-23 03:19:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:09,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-23 03:19:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:09,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-23 03:19:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:09,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:19:09,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:09,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-23 03:19:09,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:09,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-23 03:19:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:09,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:19:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:09,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-23 03:19:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:09,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-23 03:19:09,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:09,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:19:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:09,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:19:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:09,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-23 03:19:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:09,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:19:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:09,596 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-23 03:19:09,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:19:09,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184911992] [2022-11-23 03:19:09,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184911992] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:19:09,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100304433] [2022-11-23 03:19:09,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:19:09,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:19:09,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:19:09,599 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:19:09,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d4e2bf-132f-4463-924d-3b079b8ba6dd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 03:19:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:10,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 3282 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 03:19:10,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:19:10,723 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-23 03:19:10,723 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:19:10,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100304433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:19:10,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:19:10,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2022-11-23 03:19:10,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544095672] [2022-11-23 03:19:10,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:19:10,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:19:10,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:19:10,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:19:10,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-11-23 03:19:10,725 INFO L87 Difference]: Start difference. First operand 56020 states and 83447 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 03:19:14,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:19:14,212 INFO L93 Difference]: Finished difference Result 126090 states and 187799 transitions. [2022-11-23 03:19:14,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:19:14,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 208 [2022-11-23 03:19:14,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:19:14,915 INFO L225 Difference]: With dead ends: 126090 [2022-11-23 03:19:14,916 INFO L226 Difference]: Without dead ends: 70092 [2022-11-23 03:19:15,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2022-11-23 03:19:15,188 INFO L413 NwaCegarLoop]: 4068 mSDtfsCounter, 2694 mSDsluCounter, 18890 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2698 SdHoareTripleChecker+Valid, 22958 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:19:15,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2698 Valid, 22958 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:19:15,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70092 states.