./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_53a72ad2-3907-474a-9295-1b4944c83549/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a72ad2-3907-474a-9295-1b4944c83549/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a72ad2-3907-474a-9295-1b4944c83549/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a72ad2-3907-474a-9295-1b4944c83549/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a72ad2-3907-474a-9295-1b4944c83549/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a72ad2-3907-474a-9295-1b4944c83549/bin/uautomizer-TMbwUNV5ro --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 079fce486bad33abab391a672044e04aae9233622e9697c4aac88598201cd13f --- 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-8393723 [2022-11-18 21:11:28,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:11:28,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:11:28,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:11:28,436 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:11:28,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:11:28,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:11:28,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:11:28,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:11:28,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:11:28,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:11:28,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:11:28,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:11:28,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:11:28,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:11:28,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:11:28,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:11:28,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:11:28,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:11:28,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:11:28,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:11:28,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:11:28,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:11:28,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:11:28,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:11:28,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:11:28,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:11:28,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:11:28,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:11:28,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:11:28,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:11:28,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:11:28,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:11:28,508 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:11:28,509 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:11:28,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:11:28,510 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:11:28,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:11:28,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:11:28,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:11:28,512 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:11:28,513 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a72ad2-3907-474a-9295-1b4944c83549/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 21:11:28,550 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:11:28,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:11:28,555 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:11:28,556 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:11:28,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:11:28,557 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:11:28,558 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:11:28,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:11:28,558 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:11:28,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:11:28,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:11:28,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:11:28,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:11:28,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:11:28,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:11:28,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:11:28,561 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:11:28,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:11:28,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:11:28,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:11:28,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:11:28,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:11:28,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:11:28,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:11:28,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:11:28,564 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:11:28,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:11:28,566 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:11:28,566 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:11:28,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:11:28,567 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a72ad2-3907-474a-9295-1b4944c83549/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a72ad2-3907-474a-9295-1b4944c83549/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 079fce486bad33abab391a672044e04aae9233622e9697c4aac88598201cd13f [2022-11-18 21:11:28,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:11:28,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:11:28,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:11:28,882 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:11:28,883 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:11:28,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a72ad2-3907-474a-9295-1b4944c83549/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i [2022-11-18 21:11:28,952 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a72ad2-3907-474a-9295-1b4944c83549/bin/uautomizer-TMbwUNV5ro/data/78a8836bd/09c28571380446d1a9b842b00d96239c/FLAGa00794c88 [2022-11-18 21:11:29,856 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:11:29,856 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a72ad2-3907-474a-9295-1b4944c83549/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i [2022-11-18 21:11:29,921 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a72ad2-3907-474a-9295-1b4944c83549/bin/uautomizer-TMbwUNV5ro/data/78a8836bd/09c28571380446d1a9b842b00d96239c/FLAGa00794c88 [2022-11-18 21:11:30,266 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a72ad2-3907-474a-9295-1b4944c83549/bin/uautomizer-TMbwUNV5ro/data/78a8836bd/09c28571380446d1a9b842b00d96239c [2022-11-18 21:11:30,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:11:30,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:11:30,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:11:30,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:11:30,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:11:30,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:11:30" (1/1) ... [2022-11-18 21:11:30,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2234b467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:30, skipping insertion in model container [2022-11-18 21:11:30,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:11:30" (1/1) ... [2022-11-18 21:11:30,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:11:30,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:11:33,936 WARN L234 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_53a72ad2-3907-474a-9295-1b4944c83549/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423587,423600] [2022-11-18 21:11:33,941 WARN L234 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_53a72ad2-3907-474a-9295-1b4944c83549/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423734,423747] [2022-11-18 21:11:33,942 WARN L234 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_53a72ad2-3907-474a-9295-1b4944c83549/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423873,423886] [2022-11-18 21:11:33,943 WARN L234 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_53a72ad2-3907-474a-9295-1b4944c83549/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[424031,424044] [2022-11-18 21:11:33,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:11:34,048 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:11:34,517 WARN L234 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_53a72ad2-3907-474a-9295-1b4944c83549/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423587,423600] [2022-11-18 21:11:34,518 WARN L234 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_53a72ad2-3907-474a-9295-1b4944c83549/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423734,423747] [2022-11-18 21:11:34,519 WARN L234 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_53a72ad2-3907-474a-9295-1b4944c83549/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423873,423886] [2022-11-18 21:11:34,519 WARN L234 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_53a72ad2-3907-474a-9295-1b4944c83549/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[424031,424044] [2022-11-18 21:11:34,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:11:34,863 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:11:34,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:34 WrapperNode [2022-11-18 21:11:34,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:11:34,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:11:34,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:11:34,865 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:11:34,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:34" (1/1) ... [2022-11-18 21:11:35,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:34" (1/1) ... [2022-11-18 21:11:35,340 INFO L138 Inliner]: procedures = 447, calls = 4176, calls flagged for inlining = 247, calls inlined = 238, statements flattened = 8959 [2022-11-18 21:11:35,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:11:35,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:11:35,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:11:35,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:11:35,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:34" (1/1) ... [2022-11-18 21:11:35,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:34" (1/1) ... [2022-11-18 21:11:35,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:34" (1/1) ... [2022-11-18 21:11:35,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:34" (1/1) ... [2022-11-18 21:11:35,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:34" (1/1) ... [2022-11-18 21:11:35,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:34" (1/1) ... [2022-11-18 21:11:35,770 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:34" (1/1) ... [2022-11-18 21:11:35,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:34" (1/1) ... [2022-11-18 21:11:35,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:11:35,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:11:35,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:11:35,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:11:35,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:34" (1/1) ... [2022-11-18 21:11:35,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:11:35,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a72ad2-3907-474a-9295-1b4944c83549/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:11:35,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a72ad2-3907-474a-9295-1b4944c83549/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:11:35,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a72ad2-3907-474a-9295-1b4944c83549/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:11:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-18 21:11:35,937 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-18 21:11:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-18 21:11:35,938 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-18 21:11:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-18 21:11:35,938 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-18 21:11:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2022-11-18 21:11:35,938 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2022-11-18 21:11:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_nway_reset [2022-11-18 21:11:35,939 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_nway_reset [2022-11-18 21:11:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-18 21:11:35,939 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-18 21:11:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 21:11:35,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 21:11:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-18 21:11:35,940 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-18 21:11:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure set_8021q_mode [2022-11-18 21:11:35,940 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8021q_mode [2022-11-18 21:11:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_remove_one [2022-11-18 21:11:35,941 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_remove_one [2022-11-18 21:11:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-18 21:11:35,941 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-18 21:11:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure issue_and_wait [2022-11-18 21:11:35,941 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_and_wait [2022-11-18 21:11:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-18 21:11:35,942 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-18 21:11:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-18 21:11:35,942 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-18 21:11:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-18 21:11:35,943 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-18 21:11:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure window_write32 [2022-11-18 21:11:35,943 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write32 [2022-11-18 21:11:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-18 21:11:35,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-18 21:11:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-18 21:11:35,944 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-18 21:11:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 21:11:35,944 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 21:11:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure window_set [2022-11-18 21:11:35,945 INFO L138 BoogieDeclarations]: Found implementation of procedure window_set [2022-11-18 21:11:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-18 21:11:35,945 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-18 21:11:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-18 21:11:35,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-18 21:11:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-18 21:11:35,946 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-18 21:11:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-18 21:11:35,946 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-18 21:11:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-18 21:11:35,947 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-18 21:11:35,947 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-18 21:11:35,948 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-18 21:11:35,948 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-18 21:11:35,949 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-18 21:11:35,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-18 21:11:35,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-18 21:11:35,949 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-18 21:11:35,949 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-18 21:11:35,949 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-18 21:11:35,950 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-18 21:11:35,950 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-18 21:11:35,950 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-18 21:11:35,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:11:35,951 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2022-11-18 21:11:35,951 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2022-11-18 21:11:35,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-18 21:11:35,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-18 21:11:35,952 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-18 21:11:35,952 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-18 21:11:35,952 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-18 21:11:35,952 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-18 21:11:35,953 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-18 21:11:35,953 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-18 21:11:35,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 21:11:35,953 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_tx_timeout [2022-11-18 21:11:35,953 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_tx_timeout [2022-11-18 21:11:35,953 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-18 21:11:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-18 21:11:35,954 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2022-11-18 21:11:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2022-11-18 21:11:35,954 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-18 21:11:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-18 21:11:35,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-18 21:11:35,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-18 21:11:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-18 21:11:35,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-18 21:11:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 21:11:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-18 21:11:35,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-18 21:11:35,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 21:11:35,957 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_interrupt [2022-11-18 21:11:35,957 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_interrupt [2022-11-18 21:11:35,957 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-18 21:11:35,957 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-18 21:11:35,958 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-18 21:11:35,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-18 21:11:35,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 21:11:35,958 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 21:11:35,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-18 21:11:35,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-18 21:11:35,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-18 21:11:35,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-18 21:11:35,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-18 21:11:35,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-18 21:11:35,959 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_set_duplex [2022-11-18 21:11:35,960 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_set_duplex [2022-11-18 21:11:35,960 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-18 21:11:35,960 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-18 21:11:35,960 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-18 21:11:35,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-18 21:11:35,960 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-18 21:11:35,961 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-18 21:11:35,962 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_error [2022-11-18 21:11:35,964 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_error [2022-11-18 21:11:35,965 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-18 21:11:35,966 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-18 21:11:35,966 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_close [2022-11-18 21:11:35,966 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_close [2022-11-18 21:11:35,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 21:11:35,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-18 21:11:35,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-18 21:11:35,970 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2022-11-18 21:11:35,975 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2022-11-18 21:11:35,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-18 21:11:35,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-18 21:11:35,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-18 21:11:35,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-18 21:11:35,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-18 21:11:35,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-18 21:11:35,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-18 21:11:35,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-18 21:11:35,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:11:35,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-18 21:11:35,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-18 21:11:35,977 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-18 21:11:35,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-18 21:11:35,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 21:11:35,977 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-18 21:11:35,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-18 21:11:35,978 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 21:11:35,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 21:11:35,978 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-18 21:11:35,978 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-18 21:11:35,978 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-18 21:11:35,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-18 21:11:35,978 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_set_WOL [2022-11-18 21:11:35,979 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_set_WOL [2022-11-18 21:11:35,979 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-18 21:11:35,979 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-18 21:11:35,979 INFO L130 BoogieDeclarations]: Found specification of procedure window_write16 [2022-11-18 21:11:35,979 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write16 [2022-11-18 21:11:35,979 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-18 21:11:35,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-18 21:11:35,979 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-18 21:11:35,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-18 21:11:35,980 INFO L130 BoogieDeclarations]: Found specification of procedure window_read8 [2022-11-18 21:11:35,980 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read8 [2022-11-18 21:11:35,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2022-11-18 21:11:35,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2022-11-18 21:11:35,980 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2022-11-18 21:11:35,980 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2022-11-18 21:11:35,981 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-18 21:11:35,981 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-18 21:11:35,981 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-18 21:11:35,981 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-18 21:11:35,981 INFO L130 BoogieDeclarations]: Found specification of procedure poll_vortex [2022-11-18 21:11:35,982 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_vortex [2022-11-18 21:11:35,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-18 21:11:35,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-18 21:11:35,982 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_check_media [2022-11-18 21:11:35,982 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_check_media [2022-11-18 21:11:35,982 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-18 21:11:35,983 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-18 21:11:35,983 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2022-11-18 21:11:35,983 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2022-11-18 21:11:35,983 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-18 21:11:35,983 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-18 21:11:35,983 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_open [2022-11-18 21:11:35,983 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_open [2022-11-18 21:11:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure dump_tx_ring [2022-11-18 21:11:35,984 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_tx_ring [2022-11-18 21:11:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-18 21:11:35,984 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-18 21:11:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:11:35,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:11:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-18 21:11:35,985 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-18 21:11:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_probe1 [2022-11-18 21:11:35,985 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_probe1 [2022-11-18 21:11:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 21:11:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 21:11:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 21:11:35,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 21:11:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-18 21:11:35,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-18 21:11:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2022-11-18 21:11:35,986 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2022-11-18 21:11:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-18 21:11:35,986 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-18 21:11:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-18 21:11:35,986 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-18 21:11:35,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-18 21:11:35,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-18 21:11:35,987 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-18 21:11:35,987 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-18 21:11:35,987 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-18 21:11:35,987 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-18 21:11:35,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:11:35,988 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-18 21:11:35,988 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-18 21:11:35,988 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-18 21:11:35,988 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-18 21:11:35,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2022-11-18 21:11:35,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2022-11-18 21:11:35,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 21:11:35,989 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_suspend [2022-11-18 21:11:35,989 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_suspend [2022-11-18 21:11:35,989 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_interrupt [2022-11-18 21:11:35,989 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_interrupt [2022-11-18 21:11:35,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 21:11:35,989 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-18 21:11:35,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-18 21:11:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-18 21:11:35,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-18 21:11:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-18 21:11:35,990 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-18 21:11:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-18 21:11:35,990 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-18 21:11:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-18 21:11:35,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-18 21:11:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-18 21:11:35,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-18 21:11:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-18 21:11:35,991 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-18 21:11:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2022-11-18 21:11:35,991 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2022-11-18 21:11:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_resume [2022-11-18 21:11:35,992 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_resume [2022-11-18 21:11:35,992 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2022-11-18 21:11:35,993 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2022-11-18 21:11:35,996 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-18 21:11:35,997 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-18 21:11:35,997 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_rx [2022-11-18 21:11:35,997 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_rx [2022-11-18 21:11:35,997 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-18 21:11:35,997 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-18 21:11:35,997 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-18 21:11:35,997 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-18 21:11:35,998 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-18 21:11:35,998 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-18 21:11:36,000 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-18 21:11:36,000 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-18 21:11:36,000 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_delay [2022-11-18 21:11:36,000 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_delay [2022-11-18 21:11:36,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 21:11:36,000 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_down [2022-11-18 21:11:36,001 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_down [2022-11-18 21:11:36,001 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-18 21:11:36,001 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-18 21:11:36,001 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-18 21:11:36,001 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-18 21:11:36,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 21:11:36,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 21:11:36,001 INFO L130 BoogieDeclarations]: Found specification of procedure window_write8 [2022-11-18 21:11:36,002 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write8 [2022-11-18 21:11:36,002 INFO L130 BoogieDeclarations]: Found specification of procedure window_read32 [2022-11-18 21:11:36,002 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read32 [2022-11-18 21:11:36,002 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-18 21:11:36,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-18 21:11:36,002 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2022-11-18 21:11:36,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2022-11-18 21:11:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-18 21:11:36,003 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-18 21:11:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_up [2022-11-18 21:11:36,003 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_up [2022-11-18 21:11:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure window_read16 [2022-11-18 21:11:36,003 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read16 [2022-11-18 21:11:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-18 21:11:36,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-18 21:11:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-18 21:11:36,004 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-18 21:11:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-18 21:11:36,004 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-18 21:11:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-18 21:11:36,004 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-18 21:11:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-18 21:11:36,004 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-18 21:11:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:11:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-18 21:11:36,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-18 21:11:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-18 21:11:36,005 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-18 21:11:37,262 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:11:37,265 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:11:38,984 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 21:11:45,843 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-18 21:11:46,035 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:11:46,057 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:11:46,057 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-18 21:11:46,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:11:46 BoogieIcfgContainer [2022-11-18 21:11:46,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:11:46,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:11:46,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:11:46,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:11:46,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:11:30" (1/3) ... [2022-11-18 21:11:46,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c8f59e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:11:46, skipping insertion in model container [2022-11-18 21:11:46,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:34" (2/3) ... [2022-11-18 21:11:46,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c8f59e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:11:46, skipping insertion in model container [2022-11-18 21:11:46,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:11:46" (3/3) ... [2022-11-18 21:11:46,073 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i [2022-11-18 21:11:46,093 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:11:46,093 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 21:11:46,285 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:11:46,298 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;@18da2b8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:11:46,298 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-18 21:11:46,314 INFO L276 IsEmpty]: Start isEmpty. Operand has 3043 states, 2145 states have (on average 1.3543123543123543) internal successors, (2905), 2215 states have internal predecessors, (2905), 759 states have call successors, (759), 138 states have call predecessors, (759), 137 states have return successors, (750), 735 states have call predecessors, (750), 750 states have call successors, (750) [2022-11-18 21:11:46,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-18 21:11:46,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:11:46,360 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:46,361 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:11:46,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:46,370 INFO L85 PathProgramCache]: Analyzing trace with hash 407461089, now seen corresponding path program 1 times [2022-11-18 21:11:46,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:46,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805773390] [2022-11-18 21:11:46,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:46,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 21:11:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:47,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 21:11:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:47,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 21:11:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 21:11:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 21:11:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 21:11:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 21:11:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 21:11:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 21:11:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 21:11:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 21:11:47,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 21:11:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 21:11:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 21:11:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 21:11:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 21:11:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 21:11:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-18 21:11:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-11-18 21:11:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:48,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2022-11-18 21:11:48,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:48,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805773390] [2022-11-18 21:11:48,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805773390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:48,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:48,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:11:48,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768928887] [2022-11-18 21:11:48,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:48,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:11:48,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:48,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:11:48,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:11:48,051 INFO L87 Difference]: Start difference. First operand has 3043 states, 2145 states have (on average 1.3543123543123543) internal successors, (2905), 2215 states have internal predecessors, (2905), 759 states have call successors, (759), 138 states have call predecessors, (759), 137 states have return successors, (750), 735 states have call predecessors, (750), 750 states have call successors, (750) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-18 21:11:57,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:11:57,455 INFO L93 Difference]: Finished difference Result 8995 states and 13302 transitions. [2022-11-18 21:11:57,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:11:57,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 214 [2022-11-18 21:11:57,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:11:57,530 INFO L225 Difference]: With dead ends: 8995 [2022-11-18 21:11:57,530 INFO L226 Difference]: Without dead ends: 5977 [2022-11-18 21:11:57,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:11:57,558 INFO L413 NwaCegarLoop]: 3876 mSDtfsCounter, 5084 mSDsluCounter, 4993 mSDsCounter, 0 mSdLazyCounter, 3849 mSolverCounterSat, 1859 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5750 SdHoareTripleChecker+Valid, 8869 SdHoareTripleChecker+Invalid, 5708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1859 IncrementalHoareTripleChecker+Valid, 3849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-18 21:11:57,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5750 Valid, 8869 Invalid, 5708 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1859 Valid, 3849 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-11-18 21:11:57,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5977 states. [2022-11-18 21:11:58,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5977 to 5916. [2022-11-18 21:11:58,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5916 states, 4188 states have (on average 1.3471824259789875) internal successors, (5642), 4327 states have internal predecessors, (5642), 1455 states have call successors, (1455), 272 states have call predecessors, (1455), 271 states have return successors, (1452), 1422 states have call predecessors, (1452), 1452 states have call successors, (1452) [2022-11-18 21:11:58,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5916 states to 5916 states and 8549 transitions. [2022-11-18 21:11:58,114 INFO L78 Accepts]: Start accepts. Automaton has 5916 states and 8549 transitions. Word has length 214 [2022-11-18 21:11:58,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:11:58,118 INFO L495 AbstractCegarLoop]: Abstraction has 5916 states and 8549 transitions. [2022-11-18 21:11:58,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-18 21:11:58,119 INFO L276 IsEmpty]: Start isEmpty. Operand 5916 states and 8549 transitions. [2022-11-18 21:11:58,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-18 21:11:58,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:11:58,132 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 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] [2022-11-18 21:11:58,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:11:58,133 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:11:58,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:58,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1634566741, now seen corresponding path program 1 times [2022-11-18 21:11:58,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:58,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187871860] [2022-11-18 21:11:58,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:58,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 21:11:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 21:11:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 21:11:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 21:11:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 21:11:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 21:11:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 21:11:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 21:11:58,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 21:11:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 21:11:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 21:11:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 21:11:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 21:11:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 21:11:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 21:11:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:58,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:59,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 21:11:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:59,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:59,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 21:11:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:59,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:59,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-18 21:11:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:59,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-11-18 21:11:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:59,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:59,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:11:59,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:59,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 21:11:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:59,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-11-18 21:11:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:59,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1279 trivial. 0 not checked. [2022-11-18 21:11:59,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:59,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187871860] [2022-11-18 21:11:59,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187871860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:59,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:59,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:11:59,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45173429] [2022-11-18 21:11:59,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:59,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:11:59,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:59,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:11:59,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:11:59,113 INFO L87 Difference]: Start difference. First operand 5916 states and 8549 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-18 21:12:08,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:12:08,202 INFO L93 Difference]: Finished difference Result 15741 states and 22776 transitions. [2022-11-18 21:12:08,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:12:08,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 248 [2022-11-18 21:12:08,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:12:08,272 INFO L225 Difference]: With dead ends: 15741 [2022-11-18 21:12:08,272 INFO L226 Difference]: Without dead ends: 9864 [2022-11-18 21:12:08,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:12:08,302 INFO L413 NwaCegarLoop]: 3933 mSDtfsCounter, 5032 mSDsluCounter, 5043 mSDsCounter, 0 mSdLazyCounter, 3856 mSolverCounterSat, 1848 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5694 SdHoareTripleChecker+Valid, 8976 SdHoareTripleChecker+Invalid, 5704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1848 IncrementalHoareTripleChecker+Valid, 3856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:12:08,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5694 Valid, 8976 Invalid, 5704 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1848 Valid, 3856 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-11-18 21:12:08,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9864 states. [2022-11-18 21:12:08,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9864 to 9746. [2022-11-18 21:12:08,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9746 states, 6898 states have (on average 1.3448825746593216) internal successors, (9277), 7128 states have internal predecessors, (9277), 2371 states have call successors, (2371), 476 states have call predecessors, (2371), 475 states have return successors, (2368), 2314 states have call predecessors, (2368), 2368 states have call successors, (2368) [2022-11-18 21:12:08,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9746 states to 9746 states and 14016 transitions. [2022-11-18 21:12:08,935 INFO L78 Accepts]: Start accepts. Automaton has 9746 states and 14016 transitions. Word has length 248 [2022-11-18 21:12:08,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:12:08,938 INFO L495 AbstractCegarLoop]: Abstraction has 9746 states and 14016 transitions. [2022-11-18 21:12:08,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-18 21:12:08,939 INFO L276 IsEmpty]: Start isEmpty. Operand 9746 states and 14016 transitions. [2022-11-18 21:12:08,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-11-18 21:12:08,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:12:08,947 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:12:08,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:12:08,948 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:12:08,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:12:08,948 INFO L85 PathProgramCache]: Analyzing trace with hash 317757312, now seen corresponding path program 1 times [2022-11-18 21:12:08,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:12:08,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40580212] [2022-11-18 21:12:08,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:12:08,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:12:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 21:12:09,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 21:12:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 21:12:09,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:09,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 21:12:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 21:12:09,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 21:12:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 21:12:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 21:12:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 21:12:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 21:12:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 21:12:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 21:12:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 21:12:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 21:12:09,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 21:12:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 21:12:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 21:12:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-18 21:12:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-11-18 21:12:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-11-18 21:12:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-18 21:12:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2022-11-18 21:12:09,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:12:09,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40580212] [2022-11-18 21:12:09,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40580212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:12:09,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:12:09,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:12:09,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954310982] [2022-11-18 21:12:09,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:12:09,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:12:09,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:12:09,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:12:09,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:12:09,769 INFO L87 Difference]: Start difference. First operand 9746 states and 14016 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-18 21:12:17,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:12:17,926 INFO L93 Difference]: Finished difference Result 26456 states and 38051 transitions. [2022-11-18 21:12:17,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:12:17,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 239 [2022-11-18 21:12:17,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:12:18,040 INFO L225 Difference]: With dead ends: 26456 [2022-11-18 21:12:18,041 INFO L226 Difference]: Without dead ends: 16749 [2022-11-18 21:12:18,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:12:18,088 INFO L413 NwaCegarLoop]: 4302 mSDtfsCounter, 4903 mSDsluCounter, 5358 mSDsCounter, 0 mSdLazyCounter, 3933 mSolverCounterSat, 1781 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5552 SdHoareTripleChecker+Valid, 9660 SdHoareTripleChecker+Invalid, 5714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1781 IncrementalHoareTripleChecker+Valid, 3933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-18 21:12:18,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5552 Valid, 9660 Invalid, 5714 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1781 Valid, 3933 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-11-18 21:12:18,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16749 states. [2022-11-18 21:12:18,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16749 to 16539. [2022-11-18 21:12:18,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16539 states, 11650 states have (on average 1.3369957081545065) internal successors, (15576), 12045 states have internal predecessors, (15576), 4027 states have call successors, (4027), 861 states have call predecessors, (4027), 860 states have return successors, (4028), 3922 states have call predecessors, (4028), 4024 states have call successors, (4028) [2022-11-18 21:12:19,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16539 states to 16539 states and 23631 transitions. [2022-11-18 21:12:19,035 INFO L78 Accepts]: Start accepts. Automaton has 16539 states and 23631 transitions. Word has length 239 [2022-11-18 21:12:19,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:12:19,036 INFO L495 AbstractCegarLoop]: Abstraction has 16539 states and 23631 transitions. [2022-11-18 21:12:19,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-18 21:12:19,036 INFO L276 IsEmpty]: Start isEmpty. Operand 16539 states and 23631 transitions. [2022-11-18 21:12:19,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-11-18 21:12:19,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:12:19,048 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:12:19,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 21:12:19,049 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:12:19,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:12:19,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1481015852, now seen corresponding path program 1 times [2022-11-18 21:12:19,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:12:19,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919028599] [2022-11-18 21:12:19,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:12:19,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:12:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 21:12:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 21:12:19,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 21:12:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 21:12:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 21:12:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 21:12:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 21:12:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:19,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 21:12:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:19,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 21:12:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 21:12:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:19,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 21:12:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 21:12:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 21:12:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 21:12:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 21:12:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 21:12:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 21:12:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-18 21:12:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-18 21:12:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-18 21:12:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-11-18 21:12:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-11-18 21:12:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-11-18 21:12:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-11-18 21:12:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-11-18 21:12:19,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:19,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1470 trivial. 0 not checked. [2022-11-18 21:12:19,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:12:19,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919028599] [2022-11-18 21:12:19,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919028599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:12:19,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:12:19,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:12:19,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389709590] [2022-11-18 21:12:19,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:12:19,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:12:19,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:12:19,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:12:19,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:12:19,857 INFO L87 Difference]: Start difference. First operand 16539 states and 23631 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-18 21:12:28,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:12:28,019 INFO L93 Difference]: Finished difference Result 42121 states and 60408 transitions. [2022-11-18 21:12:28,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:12:28,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 276 [2022-11-18 21:12:28,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:12:28,186 INFO L225 Difference]: With dead ends: 42121 [2022-11-18 21:12:28,187 INFO L226 Difference]: Without dead ends: 27336 [2022-11-18 21:12:28,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:12:28,253 INFO L413 NwaCegarLoop]: 6412 mSDtfsCounter, 4308 mSDsluCounter, 6982 mSDsCounter, 0 mSdLazyCounter, 4653 mSolverCounterSat, 1160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4967 SdHoareTripleChecker+Valid, 13394 SdHoareTripleChecker+Invalid, 5813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1160 IncrementalHoareTripleChecker+Valid, 4653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:12:28,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4967 Valid, 13394 Invalid, 5813 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1160 Valid, 4653 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-11-18 21:12:28,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27336 states. [2022-11-18 21:12:29,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27336 to 27051. [2022-11-18 21:12:29,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27051 states, 19072 states have (on average 1.3375629194630871) internal successors, (25510), 19723 states have internal predecessors, (25510), 6603 states have call successors, (6603), 1375 states have call predecessors, (6603), 1374 states have return successors, (6604), 6440 states have call predecessors, (6604), 6600 states have call successors, (6604) [2022-11-18 21:12:29,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27051 states to 27051 states and 38717 transitions. [2022-11-18 21:12:29,767 INFO L78 Accepts]: Start accepts. Automaton has 27051 states and 38717 transitions. Word has length 276 [2022-11-18 21:12:29,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:12:29,768 INFO L495 AbstractCegarLoop]: Abstraction has 27051 states and 38717 transitions. [2022-11-18 21:12:29,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-18 21:12:29,768 INFO L276 IsEmpty]: Start isEmpty. Operand 27051 states and 38717 transitions. [2022-11-18 21:12:29,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-11-18 21:12:29,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:12:29,779 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:12:29,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 21:12:29,780 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:12:29,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:12:29,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1615029358, now seen corresponding path program 1 times [2022-11-18 21:12:29,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:12:29,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245256967] [2022-11-18 21:12:29,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:12:29,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:12:29,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 21:12:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 21:12:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 21:12:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 21:12:30,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 21:12:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 21:12:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 21:12:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 21:12:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 21:12:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 21:12:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 21:12:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 21:12:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:30,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 21:12:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 21:12:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:30,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 21:12:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:31,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:31,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 21:12:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:31,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:31,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 21:12:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:31,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:31,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-18 21:12:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:31,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-18 21:12:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:31,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-18 21:12:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:31,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-11-18 21:12:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:31,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-11-18 21:12:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:31,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:31,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-11-18 21:12:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:31,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-11-18 21:12:31,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:31,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-11-18 21:12:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:31,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1480 trivial. 0 not checked. [2022-11-18 21:12:31,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:12:31,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245256967] [2022-11-18 21:12:31,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245256967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:12:31,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:12:31,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:12:31,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213147763] [2022-11-18 21:12:31,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:12:31,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:12:31,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:12:31,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:12:31,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:12:31,162 INFO L87 Difference]: Start difference. First operand 27051 states and 38717 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-18 21:12:36,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:12:36,929 INFO L93 Difference]: Finished difference Result 27334 states and 39322 transitions. [2022-11-18 21:12:36,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:12:36,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 276 [2022-11-18 21:12:36,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:12:37,094 INFO L225 Difference]: With dead ends: 27334 [2022-11-18 21:12:37,094 INFO L226 Difference]: Without dead ends: 27153 [2022-11-18 21:12:37,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:12:37,124 INFO L413 NwaCegarLoop]: 3335 mSDtfsCounter, 4233 mSDsluCounter, 5004 mSDsCounter, 0 mSdLazyCounter, 3104 mSolverCounterSat, 1298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4729 SdHoareTripleChecker+Valid, 8339 SdHoareTripleChecker+Invalid, 4402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1298 IncrementalHoareTripleChecker+Valid, 3104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-18 21:12:37,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4729 Valid, 8339 Invalid, 4402 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1298 Valid, 3104 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-18 21:12:37,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27153 states. [2022-11-18 21:12:38,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27153 to 26910. [2022-11-18 21:12:39,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26910 states, 18995 states have (on average 1.3376678073177153) internal successors, (25409), 19632 states have internal predecessors, (25409), 6548 states have call successors, (6548), 1366 states have call predecessors, (6548), 1366 states have return successors, (6548), 6399 states have call predecessors, (6548), 6548 states have call successors, (6548) [2022-11-18 21:12:39,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26910 states to 26910 states and 38505 transitions. [2022-11-18 21:12:39,134 INFO L78 Accepts]: Start accepts. Automaton has 26910 states and 38505 transitions. Word has length 276 [2022-11-18 21:12:39,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:12:39,135 INFO L495 AbstractCegarLoop]: Abstraction has 26910 states and 38505 transitions. [2022-11-18 21:12:39,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-18 21:12:39,136 INFO L276 IsEmpty]: Start isEmpty. Operand 26910 states and 38505 transitions. [2022-11-18 21:12:39,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-11-18 21:12:39,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:12:39,176 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:12:39,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 21:12:39,177 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:12:39,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:12:39,177 INFO L85 PathProgramCache]: Analyzing trace with hash -499602744, now seen corresponding path program 1 times [2022-11-18 21:12:39,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:12:39,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988575681] [2022-11-18 21:12:39,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:12:39,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:12:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 21:12:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 21:12:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 21:12:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 21:12:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 21:12:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 21:12:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 21:12:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 21:12:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 21:12:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 21:12:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 21:12:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 21:12:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 21:12:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 21:12:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 21:12:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:39,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 21:12:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:40,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:40,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 21:12:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:40,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:40,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-18 21:12:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:40,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-18 21:12:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:40,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-18 21:12:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:40,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-11-18 21:12:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:40,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-18 21:12:40,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:40,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-11-18 21:12:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:40,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:40,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-11-18 21:12:40,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:40,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-11-18 21:12:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:40,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-11-18 21:12:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:40,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-11-18 21:12:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:40,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-11-18 21:12:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:40,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1486 trivial. 0 not checked. [2022-11-18 21:12:40,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:12:40,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988575681] [2022-11-18 21:12:40,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988575681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:12:40,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:12:40,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:12:40,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082893435] [2022-11-18 21:12:40,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:12:40,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:12:40,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:12:40,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:12:40,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:12:40,253 INFO L87 Difference]: Start difference. First operand 26910 states and 38505 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-18 21:12:49,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:12:49,175 INFO L93 Difference]: Finished difference Result 64071 states and 91816 transitions. [2022-11-18 21:12:49,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:12:49,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 309 [2022-11-18 21:12:49,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:12:49,435 INFO L225 Difference]: With dead ends: 64071 [2022-11-18 21:12:49,435 INFO L226 Difference]: Without dead ends: 38915 [2022-11-18 21:12:49,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:12:49,554 INFO L413 NwaCegarLoop]: 5894 mSDtfsCounter, 4184 mSDsluCounter, 6494 mSDsCounter, 0 mSdLazyCounter, 4615 mSolverCounterSat, 1203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4823 SdHoareTripleChecker+Valid, 12388 SdHoareTripleChecker+Invalid, 5818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1203 IncrementalHoareTripleChecker+Valid, 4615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:12:49,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4823 Valid, 12388 Invalid, 5818 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1203 Valid, 4615 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-11-18 21:12:49,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38915 states. [2022-11-18 21:12:51,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38915 to 38558. [2022-11-18 21:12:51,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38558 states, 27155 states have (on average 1.334450377462714) internal successors, (36237), 28072 states have internal predecessors, (36237), 9402 states have call successors, (9402), 2000 states have call predecessors, (9402), 2000 states have return successors, (9402), 9185 states have call predecessors, (9402), 9402 states have call successors, (9402) [2022-11-18 21:12:51,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38558 states to 38558 states and 55041 transitions. [2022-11-18 21:12:51,521 INFO L78 Accepts]: Start accepts. Automaton has 38558 states and 55041 transitions. Word has length 309 [2022-11-18 21:12:51,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:12:51,522 INFO L495 AbstractCegarLoop]: Abstraction has 38558 states and 55041 transitions. [2022-11-18 21:12:51,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-18 21:12:51,523 INFO L276 IsEmpty]: Start isEmpty. Operand 38558 states and 55041 transitions. [2022-11-18 21:12:51,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-11-18 21:12:51,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:12:51,568 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 17, 17, 17, 17, 17, 17, 6, 6, 6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:12:51,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 21:12:51,568 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:12:51,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:12:51,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1706732320, now seen corresponding path program 1 times [2022-11-18 21:12:51,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:12:51,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127381858] [2022-11-18 21:12:51,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:12:51,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:12:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 21:12:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 21:12:52,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 21:12:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 21:12:52,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 21:12:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 21:12:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 21:12:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 21:12:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 21:12:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 21:12:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 21:12:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 21:12:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 21:12:52,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 21:12:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 21:12:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 21:12:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 21:12:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-18 21:12:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-18 21:12:52,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-18 21:12:52,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-11-18 21:12:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-11-18 21:12:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-11-18 21:12:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-11-18 21:12:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-11-18 21:12:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-11-18 21:12:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-11-18 21:12:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:12:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 21:12:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-11-18 21:12:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:52,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1584 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2022-11-18 21:12:52,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:12:52,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127381858] [2022-11-18 21:12:52,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127381858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:12:52,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:12:52,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:12:52,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65480480] [2022-11-18 21:12:52,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:12:52,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:12:52,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:12:52,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:12:52,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:12:52,429 INFO L87 Difference]: Start difference. First operand 38558 states and 55041 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-18 21:13:01,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:13:01,954 INFO L93 Difference]: Finished difference Result 91154 states and 130524 transitions. [2022-11-18 21:13:01,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:13:01,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 330 [2022-11-18 21:13:01,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:13:02,235 INFO L225 Difference]: With dead ends: 91154 [2022-11-18 21:13:02,236 INFO L226 Difference]: Without dead ends: 51932 [2022-11-18 21:13:02,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:13:02,370 INFO L413 NwaCegarLoop]: 6449 mSDtfsCounter, 4268 mSDsluCounter, 6990 mSDsCounter, 0 mSdLazyCounter, 4647 mSolverCounterSat, 1117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4923 SdHoareTripleChecker+Valid, 13439 SdHoareTripleChecker+Invalid, 5764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1117 IncrementalHoareTripleChecker+Valid, 4647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:13:02,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4923 Valid, 13439 Invalid, 5764 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1117 Valid, 4647 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-11-18 21:13:02,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51932 states. [2022-11-18 21:13:04,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51932 to 51471. [2022-11-18 21:13:04,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51471 states, 36249 states have (on average 1.3349609644403984) internal successors, (48391), 37482 states have internal predecessors, (48391), 12581 states have call successors, (12581), 2640 states have call predecessors, (12581), 2640 states have return successors, (12581), 12292 states have call predecessors, (12581), 12581 states have call successors, (12581) [2022-11-18 21:13:04,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51471 states to 51471 states and 73553 transitions. [2022-11-18 21:13:04,742 INFO L78 Accepts]: Start accepts. Automaton has 51471 states and 73553 transitions. Word has length 330 [2022-11-18 21:13:04,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:13:04,743 INFO L495 AbstractCegarLoop]: Abstraction has 51471 states and 73553 transitions. [2022-11-18 21:13:04,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-18 21:13:04,743 INFO L276 IsEmpty]: Start isEmpty. Operand 51471 states and 73553 transitions. [2022-11-18 21:13:04,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-11-18 21:13:04,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:13:04,832 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 17, 17, 17, 17, 17, 17, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:13:04,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 21:13:04,832 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:13:04,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:13:04,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1306053965, now seen corresponding path program 1 times [2022-11-18 21:13:04,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:13:04,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672739387] [2022-11-18 21:13:04,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:13:04,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:13:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 21:13:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 21:13:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 21:13:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 21:13:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 21:13:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 21:13:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 21:13:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 21:13:05,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 21:13:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 21:13:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 21:13:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 21:13:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 21:13:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 21:13:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 21:13:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 21:13:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 21:13:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-18 21:13:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-18 21:13:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-18 21:13:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-11-18 21:13:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-11-18 21:13:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-11-18 21:13:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-11-18 21:13:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-11-18 21:13:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-11-18 21:13:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-11-18 21:13:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-11-18 21:13:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-11-18 21:13:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-11-18 21:13:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:05,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:13:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 21:13:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-11-18 21:13:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1765 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1737 trivial. 0 not checked. [2022-11-18 21:13:05,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:13:05,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672739387] [2022-11-18 21:13:05,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672739387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:13:05,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:13:05,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:13:05,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004769251] [2022-11-18 21:13:05,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:13:05,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:13:05,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:13:05,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:13:05,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:13:05,811 INFO L87 Difference]: Start difference. First operand 51471 states and 73553 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-18 21:13:15,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:13:15,440 INFO L93 Difference]: Finished difference Result 117062 states and 167757 transitions. [2022-11-18 21:13:15,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:13:15,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 354 [2022-11-18 21:13:15,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:13:15,822 INFO L225 Difference]: With dead ends: 117062 [2022-11-18 21:13:15,822 INFO L226 Difference]: Without dead ends: 64951 [2022-11-18 21:13:16,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:13:16,176 INFO L413 NwaCegarLoop]: 6447 mSDtfsCounter, 4266 mSDsluCounter, 6987 mSDsCounter, 0 mSdLazyCounter, 4639 mSolverCounterSat, 1114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4922 SdHoareTripleChecker+Valid, 13434 SdHoareTripleChecker+Invalid, 5753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1114 IncrementalHoareTripleChecker+Valid, 4639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:13:16,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4922 Valid, 13434 Invalid, 5753 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1114 Valid, 4639 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-11-18 21:13:16,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64951 states. [2022-11-18 21:13:18,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64951 to 51471. [2022-11-18 21:13:18,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51471 states, 36249 states have (on average 1.334933377472482) internal successors, (48390), 37482 states have internal predecessors, (48390), 12581 states have call successors, (12581), 2640 states have call predecessors, (12581), 2640 states have return successors, (12581), 12292 states have call predecessors, (12581), 12581 states have call successors, (12581) [2022-11-18 21:13:18,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51471 states to 51471 states and 73552 transitions. [2022-11-18 21:13:18,744 INFO L78 Accepts]: Start accepts. Automaton has 51471 states and 73552 transitions. Word has length 354 [2022-11-18 21:13:18,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:13:18,745 INFO L495 AbstractCegarLoop]: Abstraction has 51471 states and 73552 transitions. [2022-11-18 21:13:18,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-18 21:13:18,746 INFO L276 IsEmpty]: Start isEmpty. Operand 51471 states and 73552 transitions. [2022-11-18 21:13:18,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-11-18 21:13:18,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:13:18,808 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 17, 17, 17, 17, 17, 17, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:13:18,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 21:13:18,808 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:13:18,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:13:18,809 INFO L85 PathProgramCache]: Analyzing trace with hash 2145087627, now seen corresponding path program 1 times [2022-11-18 21:13:18,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:13:18,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812056299] [2022-11-18 21:13:18,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:13:18,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:13:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 21:13:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 21:13:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 21:13:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 21:13:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 21:13:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 21:13:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 21:13:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 21:13:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 21:13:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 21:13:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 21:13:19,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 21:13:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 21:13:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 21:13:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 21:13:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 21:13:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 21:13:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-18 21:13:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-18 21:13:19,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-18 21:13:19,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-11-18 21:13:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-11-18 21:13:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-11-18 21:13:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-11-18 21:13:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-11-18 21:13:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-11-18 21:13:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-11-18 21:13:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-11-18 21:13:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-11-18 21:13:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-11-18 21:13:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:13:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 21:13:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-11-18 21:13:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:19,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1765 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1754 trivial. 0 not checked. [2022-11-18 21:13:19,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:13:19,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812056299] [2022-11-18 21:13:19,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812056299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:13:19,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:13:19,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:13:19,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730047565] [2022-11-18 21:13:19,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:13:19,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:13:19,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:13:19,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:13:19,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:13:19,928 INFO L87 Difference]: Start difference. First operand 51471 states and 73552 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-18 21:13:29,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:13:29,873 INFO L93 Difference]: Finished difference Result 127560 states and 182783 transitions. [2022-11-18 21:13:29,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:13:29,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 354 [2022-11-18 21:13:29,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:13:30,258 INFO L225 Difference]: With dead ends: 127560 [2022-11-18 21:13:30,258 INFO L226 Difference]: Without dead ends: 77843 [2022-11-18 21:13:30,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:13:30,604 INFO L413 NwaCegarLoop]: 6422 mSDtfsCounter, 4231 mSDsluCounter, 6941 mSDsCounter, 0 mSdLazyCounter, 4664 mSolverCounterSat, 1123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4885 SdHoareTripleChecker+Valid, 13363 SdHoareTripleChecker+Invalid, 5787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1123 IncrementalHoareTripleChecker+Valid, 4664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-18 21:13:30,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4885 Valid, 13363 Invalid, 5787 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1123 Valid, 4664 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-11-18 21:13:30,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77843 states. [2022-11-18 21:13:33,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77843 to 77142. [2022-11-18 21:13:33,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77142 states, 54318 states have (on average 1.3345299900585441) internal successors, (72489), 56177 states have internal predecessors, (72489), 18848 states have call successors, (18848), 3975 states have call predecessors, (18848), 3975 states have return successors, (18848), 18410 states have call predecessors, (18848), 18848 states have call successors, (18848) [2022-11-18 21:13:34,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77142 states to 77142 states and 110185 transitions. [2022-11-18 21:13:34,110 INFO L78 Accepts]: Start accepts. Automaton has 77142 states and 110185 transitions. Word has length 354 [2022-11-18 21:13:34,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:13:34,125 INFO L495 AbstractCegarLoop]: Abstraction has 77142 states and 110185 transitions. [2022-11-18 21:13:34,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-18 21:13:34,126 INFO L276 IsEmpty]: Start isEmpty. Operand 77142 states and 110185 transitions. [2022-11-18 21:13:34,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2022-11-18 21:13:34,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:13:34,212 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 17, 17, 17, 17, 17, 17, 9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:13:34,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 21:13:34,213 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:13:34,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:13:34,214 INFO L85 PathProgramCache]: Analyzing trace with hash 2120065273, now seen corresponding path program 1 times [2022-11-18 21:13:34,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:13:34,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912518716] [2022-11-18 21:13:34,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:13:34,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:13:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 21:13:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 21:13:35,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 21:13:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 21:13:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 21:13:35,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 21:13:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 21:13:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 21:13:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 21:13:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 21:13:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 21:13:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 21:13:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 21:13:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 21:13:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:35,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 21:13:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 21:13:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 21:13:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-18 21:13:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-18 21:13:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-18 21:13:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-11-18 21:13:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-18 21:13:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-11-18 21:13:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-11-18 21:13:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-11-18 21:13:36,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-11-18 21:13:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:13:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 21:13:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-11-18 21:13:36,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:13:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:13:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 21:13:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-11-18 21:13:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-11-18 21:13:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-11-18 21:13:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-11-18 21:13:36,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-11-18 21:13:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1757 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1757 trivial. 0 not checked. [2022-11-18 21:13:36,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:13:36,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912518716] [2022-11-18 21:13:36,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912518716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:13:36,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:13:36,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:13:36,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280241072] [2022-11-18 21:13:36,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:13:36,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:13:36,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:13:36,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:13:36,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:13:36,245 INFO L87 Difference]: Start difference. First operand 77142 states and 110185 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-18 21:13:42,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:13:42,831 INFO L93 Difference]: Finished difference Result 77865 states and 111743 transitions. [2022-11-18 21:13:42,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:13:42,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 383 [2022-11-18 21:13:42,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:13:42,837 INFO L225 Difference]: With dead ends: 77865 [2022-11-18 21:13:42,837 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 21:13:43,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:13:43,159 INFO L413 NwaCegarLoop]: 3288 mSDtfsCounter, 4129 mSDsluCounter, 4948 mSDsCounter, 0 mSdLazyCounter, 3077 mSolverCounterSat, 1269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4613 SdHoareTripleChecker+Valid, 8236 SdHoareTripleChecker+Invalid, 4346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1269 IncrementalHoareTripleChecker+Valid, 3077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:13:43,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4613 Valid, 8236 Invalid, 4346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1269 Valid, 3077 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-18 21:13:43,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 21:13:43,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 21:13:43,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:13:43,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 21:13:43,172 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 383 [2022-11-18 21:13:43,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:13:43,172 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 21:13:43,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-18 21:13:43,173 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 21:13:43,173 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 21:13:43,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-18 21:13:43,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-18 21:13:43,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 21:13:43,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.