./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc --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 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 --- 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-5e519f3 [2022-11-02 21:04:12,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:04:12,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:04:12,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:04:12,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:04:12,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:04:12,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:04:12,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:04:12,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:04:12,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:04:12,282 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:04:12,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:04:12,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:04:12,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:04:12,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:04:12,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:04:12,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:04:12,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:04:12,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:04:12,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:04:12,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:04:12,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:04:12,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:04:12,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:04:12,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:04:12,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:04:12,322 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:04:12,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:04:12,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:04:12,326 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:04:12,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:04:12,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:04:12,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:04:12,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:04:12,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:04:12,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:04:12,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:04:12,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:04:12,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:04:12,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:04:12,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:04:12,340 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 21:04:12,388 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:04:12,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:04:12,389 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:04:12,389 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:04:12,390 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:04:12,391 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:04:12,391 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:04:12,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:04:12,392 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:04:12,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:04:12,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:04:12,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:04:12,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:04:12,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:04:12,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:04:12,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:04:12,395 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:04:12,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:04:12,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:04:12,396 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:04:12,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:04:12,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:04:12,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:04:12,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:04:12,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:04:12,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:04:12,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:04:12,398 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:04:12,398 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:04:12,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:04:12,399 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_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 [2022-11-02 21:04:12,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:04:12,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:04:12,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:04:12,788 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:04:12,789 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:04:12,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2022-11-02 21:04:12,858 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/data/8b14ff08a/8a2e5d2e0cc145d99880aa0f4371e9d0/FLAG3b4227a29 [2022-11-02 21:04:13,771 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:04:13,772 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2022-11-02 21:04:13,821 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/data/8b14ff08a/8a2e5d2e0cc145d99880aa0f4371e9d0/FLAG3b4227a29 [2022-11-02 21:04:14,237 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/data/8b14ff08a/8a2e5d2e0cc145d99880aa0f4371e9d0 [2022-11-02 21:04:14,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:04:14,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:04:14,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:04:14,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:04:14,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:04:14,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:04:14" (1/1) ... [2022-11-02 21:04:14,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f8afe44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:14, skipping insertion in model container [2022-11-02 21:04:14,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:04:14" (1/1) ... [2022-11-02 21:04:14,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:04:14,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:04:16,707 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2022-11-02 21:04:16,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:04:16,831 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:04:17,287 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2022-11-02 21:04:17,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:04:17,504 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:04:17,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:17 WrapperNode [2022-11-02 21:04:17,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:04:17,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:04:17,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:04:17,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:04:17,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:17" (1/1) ... [2022-11-02 21:04:17,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:17" (1/1) ... [2022-11-02 21:04:17,788 INFO L138 Inliner]: procedures = 225, calls = 1448, calls flagged for inlining = 103, calls inlined = 100, statements flattened = 3651 [2022-11-02 21:04:17,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:04:17,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:04:17,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:04:17,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:04:17,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:17" (1/1) ... [2022-11-02 21:04:17,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:17" (1/1) ... [2022-11-02 21:04:17,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:17" (1/1) ... [2022-11-02 21:04:17,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:17" (1/1) ... [2022-11-02 21:04:17,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:17" (1/1) ... [2022-11-02 21:04:17,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:17" (1/1) ... [2022-11-02 21:04:17,982 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:17" (1/1) ... [2022-11-02 21:04:18,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:17" (1/1) ... [2022-11-02 21:04:18,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:04:18,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:04:18,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:04:18,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:04:18,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:17" (1/1) ... [2022-11-02 21:04:18,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:04:18,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:18,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:18,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:04:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2022-11-02 21:04:18,139 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2022-11-02 21:04:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-02 21:04:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-02 21:04:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-02 21:04:18,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-02 21:04:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-02 21:04:18,140 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-02 21:04:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-02 21:04:18,141 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-02 21:04:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-02 21:04:18,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-02 21:04:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 21:04:18,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 21:04:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-02 21:04:18,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-02 21:04:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-02 21:04:18,142 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-02 21:04:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-02 21:04:18,142 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-02 21:04:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 21:04:18,143 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 21:04:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 21:04:18,143 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 21:04:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-11-02 21:04:18,143 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-11-02 21:04:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2022-11-02 21:04:18,144 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2022-11-02 21:04:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2022-11-02 21:04:18,144 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2022-11-02 21:04:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-02 21:04:18,144 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-02 21:04:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:04:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-02 21:04:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2022-11-02 21:04:18,145 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2022-11-02 21:04:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-02 21:04:18,146 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-02 21:04:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 21:04:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_get_stats [2022-11-02 21:04:18,146 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_get_stats [2022-11-02 21:04:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-02 21:04:18,147 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-02 21:04:18,147 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-02 21:04:18,147 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-02 21:04:18,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-02 21:04:18,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-02 21:04:18,148 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-02 21:04:18,148 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-02 21:04:18,148 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-02 21:04:18,148 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-02 21:04:18,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:04:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-02 21:04:18,149 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-02 21:04:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 21:04:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-02 21:04:18,150 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-02 21:04:18,151 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-02 21:04:18,151 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-02 21:04:18,152 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-02 21:04:18,152 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-02 21:04:18,152 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-02 21:04:18,152 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-02 21:04:18,152 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-02 21:04:18,153 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-02 21:04:18,153 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-02 21:04:18,153 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-02 21:04:18,153 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-02 21:04:18,153 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-02 21:04:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-02 21:04:18,154 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-02 21:04:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2022-11-02 21:04:18,154 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2022-11-02 21:04:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2022-11-02 21:04:18,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2022-11-02 21:04:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-02 21:04:18,155 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-02 21:04:18,155 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-02 21:04:18,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 21:04:18,156 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2022-11-02 21:04:18,156 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2022-11-02 21:04:18,156 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-02 21:04:18,156 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-02 21:04:18,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:04:18,157 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-02 21:04:18,157 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-02 21:04:18,157 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-02 21:04:18,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-02 21:04:18,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-02 21:04:18,158 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-02 21:04:18,158 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2022-11-02 21:04:18,158 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2022-11-02 21:04:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2022-11-02 21:04:18,159 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2022-11-02 21:04:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-02 21:04:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-02 21:04:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2022-11-02 21:04:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2022-11-02 21:04:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-02 21:04:18,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-02 21:04:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-02 21:04:18,161 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-02 21:04:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2022-11-02 21:04:18,162 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2022-11-02 21:04:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:04:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-02 21:04:18,162 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-02 21:04:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure dev_consume_skb_any [2022-11-02 21:04:18,162 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_consume_skb_any [2022-11-02 21:04:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-02 21:04:18,163 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-02 21:04:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 21:04:18,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 21:04:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2022-11-02 21:04:18,164 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2022-11-02 21:04:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-02 21:04:18,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-02 21:04:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2022-11-02 21:04:18,165 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2022-11-02 21:04:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-11-02 21:04:18,168 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-11-02 21:04:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2022-11-02 21:04:18,169 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2022-11-02 21:04:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 21:04:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2022-11-02 21:04:18,172 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2022-11-02 21:04:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-02 21:04:18,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-02 21:04:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:04:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-02 21:04:18,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-02 21:04:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 21:04:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-02 21:04:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-02 21:04:18,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-02 21:04:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2022-11-02 21:04:18,179 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2022-11-02 21:04:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2022-11-02 21:04:18,179 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2022-11-02 21:04:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2022-11-02 21:04:18,179 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2022-11-02 21:04:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-02 21:04:18,179 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-02 21:04:18,180 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-02 21:04:18,180 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-02 21:04:18,180 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2022-11-02 21:04:18,180 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2022-11-02 21:04:18,180 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-02 21:04:18,180 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-02 21:04:18,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:04:18,181 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-11-02 21:04:18,181 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-11-02 21:04:18,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:04:18,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:04:18,181 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2022-11-02 21:04:18,181 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2022-11-02 21:04:18,182 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-02 21:04:18,182 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-02 21:04:19,053 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:04:19,056 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:04:19,698 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-02 21:04:25,458 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:04:25,812 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume 0 == (if 0 == ~tmp___4~7#1 then 0 else (if 1 == ~tmp___4~7#1 then 0 else ~bitwiseAnd(~tmp___4~7#1, 2096896))) % 18446744073709551616; [2022-11-02 21:04:25,812 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !(0 == (if 0 == ~tmp___4~7#1 then 0 else (if 1 == ~tmp___4~7#1 then 0 else ~bitwiseAnd(~tmp___4~7#1, 2096896))) % 18446744073709551616); [2022-11-02 21:04:25,812 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189-1: assume -9223372036854775808 <= #t~ret657#1 && #t~ret657#1 <= 9223372036854775807;havoc #t~ret657#1; [2022-11-02 21:04:25,813 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189: SUMMARY for call #t~ret657#1 := schedule_timeout_interruptible(1); srcloc: null [2022-11-02 21:04:25,813 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8192: assume (if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0; [2022-11-02 21:04:25,813 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8192: assume !((if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0); [2022-11-02 21:04:25,947 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:04:25,974 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:04:25,974 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 21:04:25,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:04:25 BoogieIcfgContainer [2022-11-02 21:04:25,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:04:25,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:04:25,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:04:25,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:04:25,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:04:14" (1/3) ... [2022-11-02 21:04:25,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b15f741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:04:25, skipping insertion in model container [2022-11-02 21:04:25,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:17" (2/3) ... [2022-11-02 21:04:25,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b15f741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:04:25, skipping insertion in model container [2022-11-02 21:04:25,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:04:25" (3/3) ... [2022-11-02 21:04:25,989 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2022-11-02 21:04:26,007 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:04:26,008 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 21:04:26,127 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:04:26,135 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;@cac3463, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:04:26,135 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 21:04:26,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 1632 states, 1028 states have (on average 1.3511673151750974) internal successors, (1389), 1082 states have internal predecessors, (1389), 535 states have call successors, (535), 70 states have call predecessors, (535), 69 states have return successors, (528), 512 states have call predecessors, (528), 528 states have call successors, (528) [2022-11-02 21:04:26,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-02 21:04:26,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:26,193 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-02 21:04:26,194 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:26,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:26,202 INFO L85 PathProgramCache]: Analyzing trace with hash 740841460, now seen corresponding path program 1 times [2022-11-02 21:04:26,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:26,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941388391] [2022-11-02 21:04:26,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:26,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:26,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:04:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:26,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:26,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:04:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:04:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:04:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 21:04:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:04:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 21:04:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:04:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 21:04:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:04:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 21:04:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-02 21:04:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-02 21:04:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-02 21:04:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-02 21:04:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-02 21:04:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-02 21:04:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-02 21:04:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,445 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-11-02 21:04:27,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:27,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941388391] [2022-11-02 21:04:27,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941388391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:27,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:27,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:04:27,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081812401] [2022-11-02 21:04:27,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:27,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:04:27,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:27,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:04:27,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:04:27,503 INFO L87 Difference]: Start difference. First operand has 1632 states, 1028 states have (on average 1.3511673151750974) internal successors, (1389), 1082 states have internal predecessors, (1389), 535 states have call successors, (535), 70 states have call predecessors, (535), 69 states have return successors, (528), 512 states have call predecessors, (528), 528 states have call successors, (528) Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 21:04:34,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:34,828 INFO L93 Difference]: Finished difference Result 3398 states and 5191 transitions. [2022-11-02 21:04:34,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:34,831 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 167 [2022-11-02 21:04:34,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:34,870 INFO L225 Difference]: With dead ends: 3398 [2022-11-02 21:04:34,871 INFO L226 Difference]: Without dead ends: 1751 [2022-11-02 21:04:34,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:04:34,899 INFO L413 NwaCegarLoop]: 2024 mSDtfsCounter, 2012 mSDsluCounter, 1953 mSDsCounter, 0 mSdLazyCounter, 1753 mSolverCounterSat, 2592 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2053 SdHoareTripleChecker+Valid, 3977 SdHoareTripleChecker+Invalid, 4345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2592 IncrementalHoareTripleChecker+Valid, 1753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:34,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2053 Valid, 3977 Invalid, 4345 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2592 Valid, 1753 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-11-02 21:04:34,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2022-11-02 21:04:35,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1606. [2022-11-02 21:04:35,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1011 states have (on average 1.3422354104846685) internal successors, (1357), 1055 states have internal predecessors, (1357), 526 states have call successors, (526), 69 states have call predecessors, (526), 68 states have return successors, (525), 509 states have call predecessors, (525), 525 states have call successors, (525) [2022-11-02 21:04:35,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 2408 transitions. [2022-11-02 21:04:35,118 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 2408 transitions. Word has length 167 [2022-11-02 21:04:35,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:35,119 INFO L495 AbstractCegarLoop]: Abstraction has 1606 states and 2408 transitions. [2022-11-02 21:04:35,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 21:04:35,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 2408 transitions. [2022-11-02 21:04:35,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-02 21:04:35,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:35,128 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-02 21:04:35,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:04:35,129 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:35,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:35,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1077778858, now seen corresponding path program 1 times [2022-11-02 21:04:35,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:35,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797155397] [2022-11-02 21:04:35,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:35,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:04:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:04:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:04:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:35,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:04:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 21:04:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:04:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 21:04:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:35,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:04:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 21:04:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:04:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 21:04:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-02 21:04:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-02 21:04:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-02 21:04:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-02 21:04:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-02 21:04:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-02 21:04:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-02 21:04:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,993 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-11-02 21:04:35,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:35,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797155397] [2022-11-02 21:04:35,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797155397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:35,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:35,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:04:35,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51520904] [2022-11-02 21:04:35,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:35,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:04:35,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:35,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:04:35,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:04:35,998 INFO L87 Difference]: Start difference. First operand 1606 states and 2408 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-02 21:04:51,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:51,836 INFO L93 Difference]: Finished difference Result 5068 states and 7677 transitions. [2022-11-02 21:04:51,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 21:04:51,840 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 167 [2022-11-02 21:04:51,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:51,875 INFO L225 Difference]: With dead ends: 5068 [2022-11-02 21:04:51,876 INFO L226 Difference]: Without dead ends: 3484 [2022-11-02 21:04:51,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-11-02 21:04:51,892 INFO L413 NwaCegarLoop]: 2521 mSDtfsCounter, 6255 mSDsluCounter, 4748 mSDsCounter, 0 mSdLazyCounter, 7975 mSolverCounterSat, 7104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6507 SdHoareTripleChecker+Valid, 7269 SdHoareTripleChecker+Invalid, 15079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7104 IncrementalHoareTripleChecker+Valid, 7975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:51,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6507 Valid, 7269 Invalid, 15079 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7104 Valid, 7975 Invalid, 0 Unknown, 0 Unchecked, 14.9s Time] [2022-11-02 21:04:51,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3484 states. [2022-11-02 21:04:52,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3484 to 3184. [2022-11-02 21:04:52,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3184 states, 2004 states have (on average 1.342814371257485) internal successors, (2691), 2096 states have internal predecessors, (2691), 1043 states have call successors, (1043), 137 states have call predecessors, (1043), 136 states have return successors, (1046), 1006 states have call predecessors, (1046), 1042 states have call successors, (1046) [2022-11-02 21:04:52,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 4780 transitions. [2022-11-02 21:04:52,174 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 4780 transitions. Word has length 167 [2022-11-02 21:04:52,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:52,175 INFO L495 AbstractCegarLoop]: Abstraction has 3184 states and 4780 transitions. [2022-11-02 21:04:52,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-02 21:04:52,175 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 4780 transitions. [2022-11-02 21:04:52,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-02 21:04:52,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:52,184 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-02 21:04:52,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:04:52,185 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:52,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:52,186 INFO L85 PathProgramCache]: Analyzing trace with hash -198068825, now seen corresponding path program 1 times [2022-11-02 21:04:52,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:52,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484713278] [2022-11-02 21:04:52,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:52,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:04:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:04:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:04:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:04:52,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 21:04:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:04:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 21:04:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:04:52,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 21:04:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:04:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 21:04:52,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-02 21:04:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:04:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-02 21:04:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-02 21:04:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:53,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-02 21:04:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:53,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-02 21:04:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:53,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-02 21:04:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:53,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-02 21:04:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:53,030 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-11-02 21:04:53,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:53,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484713278] [2022-11-02 21:04:53,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484713278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:53,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:53,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:04:53,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225139435] [2022-11-02 21:04:53,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:53,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:04:53,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:53,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:04:53,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:04:53,035 INFO L87 Difference]: Start difference. First operand 3184 states and 4780 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-02 21:05:09,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-02 21:05:11,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:11,706 INFO L93 Difference]: Finished difference Result 10156 states and 15407 transitions. [2022-11-02 21:05:11,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 21:05:11,712 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 169 [2022-11-02 21:05:11,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:11,770 INFO L225 Difference]: With dead ends: 10156 [2022-11-02 21:05:11,771 INFO L226 Difference]: Without dead ends: 6994 [2022-11-02 21:05:11,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-11-02 21:05:11,799 INFO L413 NwaCegarLoop]: 2465 mSDtfsCounter, 5324 mSDsluCounter, 5286 mSDsCounter, 0 mSdLazyCounter, 8927 mSolverCounterSat, 5564 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5589 SdHoareTripleChecker+Valid, 7751 SdHoareTripleChecker+Invalid, 14492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5564 IncrementalHoareTripleChecker+Valid, 8927 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:11,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5589 Valid, 7751 Invalid, 14492 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5564 Valid, 8927 Invalid, 1 Unknown, 0 Unchecked, 17.7s Time] [2022-11-02 21:05:11,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6994 states. [2022-11-02 21:05:12,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6994 to 6428. [2022-11-02 21:05:12,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6428 states, 4037 states have (on average 1.3428288332920486) internal successors, (5421), 4220 states have internal predecessors, (5421), 2116 states have call successors, (2116), 273 states have call predecessors, (2116), 274 states have return successors, (2137), 2042 states have call predecessors, (2137), 2115 states have call successors, (2137) [2022-11-02 21:05:12,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6428 states to 6428 states and 9674 transitions. [2022-11-02 21:05:12,366 INFO L78 Accepts]: Start accepts. Automaton has 6428 states and 9674 transitions. Word has length 169 [2022-11-02 21:05:12,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:12,367 INFO L495 AbstractCegarLoop]: Abstraction has 6428 states and 9674 transitions. [2022-11-02 21:05:12,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-02 21:05:12,368 INFO L276 IsEmpty]: Start isEmpty. Operand 6428 states and 9674 transitions. [2022-11-02 21:05:12,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-02 21:05:12,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:12,377 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-02 21:05:12,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:05:12,378 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:12,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:12,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1604410682, now seen corresponding path program 1 times [2022-11-02 21:05:12,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:12,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770946790] [2022-11-02 21:05:12,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:12,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:12,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:05:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:12,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:12,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:05:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:12,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:05:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:12,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:12,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:05:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:12,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 21:05:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:12,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:12,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:05:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:12,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 21:05:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:12,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:12,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:05:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:12,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 21:05:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:12,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:12,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:05:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:12,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 21:05:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:12,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:13,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-02 21:05:13,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:13,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:13,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-02 21:05:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:13,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-02 21:05:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:13,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-02 21:05:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:13,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-02 21:05:13,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:13,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-02 21:05:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:13,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-02 21:05:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:13,101 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-11-02 21:05:13,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:13,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770946790] [2022-11-02 21:05:13,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770946790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:13,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:13,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:05:13,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704426839] [2022-11-02 21:05:13,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:13,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:05:13,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:13,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:05:13,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:05:13,105 INFO L87 Difference]: Start difference. First operand 6428 states and 9674 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-02 21:05:30,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:30,882 INFO L93 Difference]: Finished difference Result 20423 states and 31007 transitions. [2022-11-02 21:05:30,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 21:05:30,883 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 170 [2022-11-02 21:05:30,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:30,989 INFO L225 Difference]: With dead ends: 20423 [2022-11-02 21:05:30,989 INFO L226 Difference]: Without dead ends: 14017 [2022-11-02 21:05:31,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-11-02 21:05:31,037 INFO L413 NwaCegarLoop]: 2207 mSDtfsCounter, 5643 mSDsluCounter, 5678 mSDsCounter, 0 mSdLazyCounter, 8938 mSolverCounterSat, 5862 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5895 SdHoareTripleChecker+Valid, 7885 SdHoareTripleChecker+Invalid, 14800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5862 IncrementalHoareTripleChecker+Valid, 8938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:31,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5895 Valid, 7885 Invalid, 14800 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5862 Valid, 8938 Invalid, 0 Unknown, 0 Unchecked, 16.5s Time] [2022-11-02 21:05:31,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14017 states. [2022-11-02 21:05:32,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14017 to 12839. [2022-11-02 21:05:32,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12839 states, 8068 states have (on average 1.3424640555280118) internal successors, (10831), 8432 states have internal predecessors, (10831), 4221 states have call successors, (4221), 546 states have call predecessors, (4221), 549 states have return successors, (4274), 4076 states have call predecessors, (4274), 4220 states have call successors, (4274) [2022-11-02 21:05:32,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12839 states to 12839 states and 19326 transitions. [2022-11-02 21:05:32,298 INFO L78 Accepts]: Start accepts. Automaton has 12839 states and 19326 transitions. Word has length 170 [2022-11-02 21:05:32,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:32,299 INFO L495 AbstractCegarLoop]: Abstraction has 12839 states and 19326 transitions. [2022-11-02 21:05:32,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-02 21:05:32,300 INFO L276 IsEmpty]: Start isEmpty. Operand 12839 states and 19326 transitions. [2022-11-02 21:05:32,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-02 21:05:32,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:32,309 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-02 21:05:32,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:05:32,309 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:32,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:32,310 INFO L85 PathProgramCache]: Analyzing trace with hash 2105470557, now seen corresponding path program 1 times [2022-11-02 21:05:32,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:32,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779467327] [2022-11-02 21:05:32,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:32,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:05:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:32,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:05:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:05:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:05:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 21:05:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:05:32,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 21:05:32,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:05:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 21:05:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:05:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 21:05:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-02 21:05:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 21:05:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-02 21:05:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-02 21:05:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-02 21:05:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-02 21:05:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-02 21:05:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:32,955 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-11-02 21:05:32,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:32,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779467327] [2022-11-02 21:05:32,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779467327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:32,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:32,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:05:32,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929485108] [2022-11-02 21:05:32,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:32,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:05:32,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:32,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:05:32,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:05:32,958 INFO L87 Difference]: Start difference. First operand 12839 states and 19326 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-02 21:05:52,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:52,310 INFO L93 Difference]: Finished difference Result 40579 states and 61607 transitions. [2022-11-02 21:05:52,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 21:05:52,385 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 168 [2022-11-02 21:05:52,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:52,552 INFO L225 Difference]: With dead ends: 40579 [2022-11-02 21:05:52,553 INFO L226 Difference]: Without dead ends: 27762 [2022-11-02 21:05:52,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-11-02 21:05:52,621 INFO L413 NwaCegarLoop]: 2433 mSDtfsCounter, 5317 mSDsluCounter, 5934 mSDsCounter, 0 mSdLazyCounter, 9501 mSolverCounterSat, 5555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5568 SdHoareTripleChecker+Valid, 8367 SdHoareTripleChecker+Invalid, 15056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5555 IncrementalHoareTripleChecker+Valid, 9501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:52,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5568 Valid, 8367 Invalid, 15056 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5555 Valid, 9501 Invalid, 0 Unknown, 0 Unchecked, 17.2s Time] [2022-11-02 21:05:52,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27762 states. [2022-11-02 21:05:54,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27762 to 25493. [2022-11-02 21:05:54,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25493 states, 16014 states have (on average 1.3420132384163856) internal successors, (21491), 16732 states have internal predecessors, (21491), 8384 states have call successors, (8384), 1087 states have call predecessors, (8384), 1094 states have return successors, (8509), 8099 states have call predecessors, (8509), 8383 states have call successors, (8509) [2022-11-02 21:05:55,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25493 states to 25493 states and 38384 transitions. [2022-11-02 21:05:55,216 INFO L78 Accepts]: Start accepts. Automaton has 25493 states and 38384 transitions. Word has length 168 [2022-11-02 21:05:55,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:55,218 INFO L495 AbstractCegarLoop]: Abstraction has 25493 states and 38384 transitions. [2022-11-02 21:05:55,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-02 21:05:55,218 INFO L276 IsEmpty]: Start isEmpty. Operand 25493 states and 38384 transitions. [2022-11-02 21:05:55,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-02 21:05:55,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:55,231 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-02 21:05:55,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:05:55,231 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:55,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:55,232 INFO L85 PathProgramCache]: Analyzing trace with hash 482038512, now seen corresponding path program 1 times [2022-11-02 21:05:55,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:55,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517254769] [2022-11-02 21:05:55,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:55,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:05:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:55,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:05:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:05:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:05:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 21:05:55,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:55,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:05:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 21:05:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:05:55,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 21:05:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:05:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 21:05:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-02 21:05:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:55,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:55,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 21:05:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:56,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-02 21:05:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:56,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-02 21:05:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:56,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-02 21:05:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:56,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-02 21:05:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:56,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-02 21:05:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:56,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-02 21:05:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:56,088 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-11-02 21:05:56,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:56,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517254769] [2022-11-02 21:05:56,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517254769] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:05:56,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440793331] [2022-11-02 21:05:56,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:56,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:05:56,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:05:56,096 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:05:56,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 21:05:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:56,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 2197 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:05:56,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:56,932 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-11-02 21:05:56,932 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:56,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440793331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:56,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:05:56,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-11-02 21:05:56,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579219723] [2022-11-02 21:05:56,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:56,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:56,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:56,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:56,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:05:56,935 INFO L87 Difference]: Start difference. First operand 25493 states and 38384 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-02 21:05:58,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:58,527 INFO L93 Difference]: Finished difference Result 51129 states and 77011 transitions. [2022-11-02 21:05:58,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:58,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 180 [2022-11-02 21:05:58,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:58,828 INFO L225 Difference]: With dead ends: 51129 [2022-11-02 21:05:58,828 INFO L226 Difference]: Without dead ends: 25658 [2022-11-02 21:05:58,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:05:58,966 INFO L413 NwaCegarLoop]: 2409 mSDtfsCounter, 9 mSDsluCounter, 2397 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4806 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:58,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4806 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:05:58,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25658 states. [2022-11-02 21:06:00,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25658 to 25508. [2022-11-02 21:06:00,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25508 states, 16029 states have (on average 1.3416931811092394) internal successors, (21506), 16747 states have internal predecessors, (21506), 8384 states have call successors, (8384), 1087 states have call predecessors, (8384), 1094 states have return successors, (8509), 8099 states have call predecessors, (8509), 8383 states have call successors, (8509) [2022-11-02 21:06:01,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25508 states to 25508 states and 38399 transitions. [2022-11-02 21:06:01,135 INFO L78 Accepts]: Start accepts. Automaton has 25508 states and 38399 transitions. Word has length 180 [2022-11-02 21:06:01,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:01,136 INFO L495 AbstractCegarLoop]: Abstraction has 25508 states and 38399 transitions. [2022-11-02 21:06:01,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-02 21:06:01,137 INFO L276 IsEmpty]: Start isEmpty. Operand 25508 states and 38399 transitions. [2022-11-02 21:06:01,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-02 21:06:01,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:01,150 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-11-02 21:06:01,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:06:01,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:01,364 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:01,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:01,364 INFO L85 PathProgramCache]: Analyzing trace with hash 2079713895, now seen corresponding path program 1 times [2022-11-02 21:06:01,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:01,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66761352] [2022-11-02 21:06:01,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:01,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:01,454 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 21:06:01,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [157953343] [2022-11-02 21:06:01,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:01,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:01,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:01,456 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:06:01,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 21:06:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:02,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 2226 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 21:06:02,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:02,427 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-11-02 21:06:02,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:06:02,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:02,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66761352] [2022-11-02 21:06:02,428 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 21:06:02,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157953343] [2022-11-02 21:06:02,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157953343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:02,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:02,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:06:02,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250638396] [2022-11-02 21:06:02,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:02,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:06:02,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:02,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:06:02,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:06:02,431 INFO L87 Difference]: Start difference. First operand 25508 states and 38399 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-02 21:06:05,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:05,330 INFO L93 Difference]: Finished difference Result 63838 states and 96103 transitions. [2022-11-02 21:06:05,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:06:05,330 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 184 [2022-11-02 21:06:05,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:05,590 INFO L225 Difference]: With dead ends: 63838 [2022-11-02 21:06:05,591 INFO L226 Difference]: Without dead ends: 38352 [2022-11-02 21:06:05,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:06:05,799 INFO L413 NwaCegarLoop]: 3467 mSDtfsCounter, 2428 mSDsluCounter, 16237 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2432 SdHoareTripleChecker+Valid, 19704 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:05,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2432 Valid, 19704 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:06:05,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38352 states. [2022-11-02 21:06:08,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38352 to 38203. [2022-11-02 21:06:08,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38203 states, 24016 states have (on average 1.3425216522318455) internal successors, (32242), 25100 states have internal predecessors, (32242), 12543 states have call successors, (12543), 1624 states have call predecessors, (12543), 1643 states have return successors, (12774), 12114 states have call predecessors, (12774), 12542 states have call successors, (12774) [2022-11-02 21:06:09,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38203 states to 38203 states and 57559 transitions. [2022-11-02 21:06:09,015 INFO L78 Accepts]: Start accepts. Automaton has 38203 states and 57559 transitions. Word has length 184 [2022-11-02 21:06:09,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:09,016 INFO L495 AbstractCegarLoop]: Abstraction has 38203 states and 57559 transitions. [2022-11-02 21:06:09,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-02 21:06:09,017 INFO L276 IsEmpty]: Start isEmpty. Operand 38203 states and 57559 transitions. [2022-11-02 21:06:09,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-02 21:06:09,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:09,033 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-11-02 21:06:09,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:06:09,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-02 21:06:09,248 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:09,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:09,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1028835409, now seen corresponding path program 1 times [2022-11-02 21:06:09,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:09,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155219932] [2022-11-02 21:06:09,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:09,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:09,342 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 21:06:09,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1080594073] [2022-11-02 21:06:09,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:09,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:09,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:09,344 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:06:09,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 21:06:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:10,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 2228 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 21:06:10,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:10,239 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-11-02 21:06:10,239 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:06:10,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:10,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155219932] [2022-11-02 21:06:10,240 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 21:06:10,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080594073] [2022-11-02 21:06:10,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080594073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:10,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:10,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:06:10,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841971603] [2022-11-02 21:06:10,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:10,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:06:10,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:10,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:06:10,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:06:10,242 INFO L87 Difference]: Start difference. First operand 38203 states and 57559 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-02 21:06:13,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:13,366 INFO L93 Difference]: Finished difference Result 89281 states and 134469 transitions. [2022-11-02 21:06:13,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:06:13,367 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 185 [2022-11-02 21:06:13,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:13,837 INFO L225 Difference]: With dead ends: 89281 [2022-11-02 21:06:13,837 INFO L226 Difference]: Without dead ends: 51100 [2022-11-02 21:06:13,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:06:13,956 INFO L413 NwaCegarLoop]: 3752 mSDtfsCounter, 2428 mSDsluCounter, 17365 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2432 SdHoareTripleChecker+Valid, 21117 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:13,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2432 Valid, 21117 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:06:13,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51100 states. [2022-11-02 21:06:17,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51100 to 50930. [2022-11-02 21:06:17,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50930 states, 32023 states have (on average 1.3427224182618742) internal successors, (42998), 33489 states have internal predecessors, (42998), 16702 states have call successors, (16702), 2161 states have call predecessors, (16702), 2204 states have return successors, (17051), 16125 states have call predecessors, (17051), 16701 states have call successors, (17051) [2022-11-02 21:06:17,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50930 states to 50930 states and 76751 transitions. [2022-11-02 21:06:17,773 INFO L78 Accepts]: Start accepts. Automaton has 50930 states and 76751 transitions. Word has length 185 [2022-11-02 21:06:17,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:17,776 INFO L495 AbstractCegarLoop]: Abstraction has 50930 states and 76751 transitions. [2022-11-02 21:06:17,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-02 21:06:17,777 INFO L276 IsEmpty]: Start isEmpty. Operand 50930 states and 76751 transitions. [2022-11-02 21:06:17,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-02 21:06:17,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:17,800 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-11-02 21:06:17,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 21:06:18,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-02 21:06:18,016 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:18,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:18,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1462652096, now seen corresponding path program 1 times [2022-11-02 21:06:18,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:18,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702289740] [2022-11-02 21:06:18,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:18,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:18,094 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 21:06:18,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [361461374] [2022-11-02 21:06:18,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:18,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:18,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:18,096 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:06:18,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 21:06:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:18,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 2230 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 21:06:18,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:18,990 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-11-02 21:06:18,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:06:18,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:18,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702289740] [2022-11-02 21:06:18,991 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 21:06:18,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361461374] [2022-11-02 21:06:18,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361461374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:18,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:18,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:06:18,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791966040] [2022-11-02 21:06:18,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:18,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:06:18,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:18,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:06:18,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:06:18,993 INFO L87 Difference]: Start difference. First operand 50930 states and 76751 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-02 21:06:22,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:22,815 INFO L93 Difference]: Finished difference Result 114724 states and 172835 transitions. [2022-11-02 21:06:22,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:06:22,816 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 186 [2022-11-02 21:06:22,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:23,271 INFO L225 Difference]: With dead ends: 114724 [2022-11-02 21:06:23,271 INFO L226 Difference]: Without dead ends: 63816 [2022-11-02 21:06:23,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:06:23,718 INFO L413 NwaCegarLoop]: 3753 mSDtfsCounter, 2428 mSDsluCounter, 17369 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2432 SdHoareTripleChecker+Valid, 21122 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:23,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2432 Valid, 21122 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:06:23,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63816 states. [2022-11-02 21:06:27,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63816 to 50952. [2022-11-02 21:06:27,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50952 states, 32039 states have (on average 1.3425512656449952) internal successors, (43014), 33507 states have internal predecessors, (43014), 16702 states have call successors, (16702), 2161 states have call predecessors, (16702), 2210 states have return successors, (17060), 16129 states have call predecessors, (17060), 16701 states have call successors, (17060) [2022-11-02 21:06:27,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50952 states to 50952 states and 76776 transitions. [2022-11-02 21:06:27,661 INFO L78 Accepts]: Start accepts. Automaton has 50952 states and 76776 transitions. Word has length 186 [2022-11-02 21:06:27,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:27,662 INFO L495 AbstractCegarLoop]: Abstraction has 50952 states and 76776 transitions. [2022-11-02 21:06:27,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-02 21:06:27,662 INFO L276 IsEmpty]: Start isEmpty. Operand 50952 states and 76776 transitions. [2022-11-02 21:06:27,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-02 21:06:27,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:27,683 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-11-02 21:06:27,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 21:06:27,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:27,896 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:27,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:27,896 INFO L85 PathProgramCache]: Analyzing trace with hash -584136280, now seen corresponding path program 1 times [2022-11-02 21:06:27,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:27,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137758275] [2022-11-02 21:06:27,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:27,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:27,964 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 21:06:27,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [411171419] [2022-11-02 21:06:27,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:27,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:27,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:27,966 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:06:27,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21abbcda-7d27-4be7-991e-cad83e4caace/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 21:06:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 2232 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 21:06:28,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:28,818 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-11-02 21:06:28,818 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:06:28,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:28,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137758275] [2022-11-02 21:06:28,819 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 21:06:28,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411171419] [2022-11-02 21:06:28,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411171419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:28,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:28,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:06:28,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305653778] [2022-11-02 21:06:28,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:28,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:06:28,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:28,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:06:28,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:06:28,821 INFO L87 Difference]: Start difference. First operand 50952 states and 76776 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-02 21:06:32,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:32,634 INFO L93 Difference]: Finished difference Result 114754 states and 172868 transitions. [2022-11-02 21:06:32,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:06:32,635 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 187 [2022-11-02 21:06:32,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:32,940 INFO L225 Difference]: With dead ends: 114754 [2022-11-02 21:06:32,940 INFO L226 Difference]: Without dead ends: 63824 [2022-11-02 21:06:33,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:06:33,136 INFO L413 NwaCegarLoop]: 3754 mSDtfsCounter, 2428 mSDsluCounter, 17373 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2432 SdHoareTripleChecker+Valid, 21127 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:33,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2432 Valid, 21127 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:06:33,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63824 states.