./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--wireless--hostap--hostap.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b0d8d2-b43b-47f6-b371-7102ac64f2ae/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b0d8d2-b43b-47f6-b371-7102ac64f2ae/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_e4b0d8d2-b43b-47f6-b371-7102ac64f2ae/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b0d8d2-b43b-47f6-b371-7102ac64f2ae/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--wireless--hostap--hostap.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b0d8d2-b43b-47f6-b371-7102ac64f2ae/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_e4b0d8d2-b43b-47f6-b371-7102ac64f2ae/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 f21c7f36186f2129ffc494c3ea005fd20ba865adeabaea67c7a3542b6449e976 --- 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 20:53:20,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:53:20,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:53:20,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:53:20,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:53:21,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:53:21,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:53:21,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:53:21,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:53:21,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:53:21,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:53:21,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:53:21,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:53:21,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:53:21,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:53:21,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:53:21,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:53:21,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:53:21,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:53:21,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:53:21,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:53:21,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:53:21,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:53:21,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:53:21,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:53:21,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:53:21,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:53:21,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:53:21,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:53:21,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:53:21,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:53:21,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:53:21,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:53:21,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:53:21,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:53:21,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:53:21,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:53:21,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:53:21,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:53:21,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:53:21,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:53:21,072 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b0d8d2-b43b-47f6-b371-7102ac64f2ae/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:53:21,116 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:53:21,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:53:21,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:53:21,118 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:53:21,119 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:53:21,119 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:53:21,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:53:21,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:53:21,120 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:53:21,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:53:21,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:53:21,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:53:21,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:53:21,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:53:21,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:53:21,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:53:21,123 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:53:21,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:53:21,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:53:21,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:53:21,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:53:21,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:53:21,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:53:21,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:53:21,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:53:21,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:53:21,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:53:21,125 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:53:21,125 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:53:21,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:53:21,126 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_e4b0d8d2-b43b-47f6-b371-7102ac64f2ae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b0d8d2-b43b-47f6-b371-7102ac64f2ae/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f21c7f36186f2129ffc494c3ea005fd20ba865adeabaea67c7a3542b6449e976 [2022-11-02 20:53:21,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:53:21,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:53:21,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:53:21,436 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:53:21,436 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:53:21,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b0d8d2-b43b-47f6-b371-7102ac64f2ae/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--wireless--hostap--hostap.ko-main.cil.out.i [2022-11-02 20:53:21,531 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b0d8d2-b43b-47f6-b371-7102ac64f2ae/bin/uautomizer-Dbtcem3rbc/data/b551ba1c4/0e93cec8836e4392b351d1415f01878f/FLAGd2226bc64 [2022-11-02 20:53:22,884 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:53:22,886 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b0d8d2-b43b-47f6-b371-7102ac64f2ae/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--wireless--hostap--hostap.ko-main.cil.out.i [2022-11-02 20:53:22,960 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b0d8d2-b43b-47f6-b371-7102ac64f2ae/bin/uautomizer-Dbtcem3rbc/data/b551ba1c4/0e93cec8836e4392b351d1415f01878f/FLAGd2226bc64 [2022-11-02 20:53:23,024 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b0d8d2-b43b-47f6-b371-7102ac64f2ae/bin/uautomizer-Dbtcem3rbc/data/b551ba1c4/0e93cec8836e4392b351d1415f01878f [2022-11-02 20:53:23,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:53:23,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:53:23,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:53:23,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:53:23,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:53:23,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:53:23" (1/1) ... [2022-11-02 20:53:23,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48315db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:23, skipping insertion in model container [2022-11-02 20:53:23,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:53:23" (1/1) ... [2022-11-02 20:53:23,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:53:23,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:53:29,291 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_e4b0d8d2-b43b-47f6-b371-7102ac64f2ae/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--wireless--hostap--hostap.ko-main.cil.out.i[608636,608649] [2022-11-02 20:53:29,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:53:29,560 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:53:31,441 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_e4b0d8d2-b43b-47f6-b371-7102ac64f2ae/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--wireless--hostap--hostap.ko-main.cil.out.i[608636,608649] [2022-11-02 20:53:31,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:53:31,757 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:53:31,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:31 WrapperNode [2022-11-02 20:53:31,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:53:31,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:53:31,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:53:31,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:53:31,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:31" (1/1) ... [2022-11-02 20:53:32,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:31" (1/1) ... [2022-11-02 20:53:32,246 INFO L138 Inliner]: procedures = 551, calls = 8467, calls flagged for inlining = 190, calls inlined = 111, statements flattened = 8678 [2022-11-02 20:53:32,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:53:32,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:53:32,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:53:32,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:53:32,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:31" (1/1) ... [2022-11-02 20:53:32,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:31" (1/1) ... [2022-11-02 20:53:32,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:31" (1/1) ... [2022-11-02 20:53:32,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:31" (1/1) ... [2022-11-02 20:53:32,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:31" (1/1) ... [2022-11-02 20:53:32,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:31" (1/1) ... [2022-11-02 20:53:32,668 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:31" (1/1) ... [2022-11-02 20:53:32,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:31" (1/1) ... [2022-11-02 20:53:32,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:53:32,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:53:32,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:53:32,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:53:32,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:31" (1/1) ... [2022-11-02 20:53:32,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:53:32,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b0d8d2-b43b-47f6-b371-7102ac64f2ae/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:53:32,807 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b0d8d2-b43b-47f6-b371-7102ac64f2ae/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:53:32,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b0d8d2-b43b-47f6-b371-7102ac64f2ae/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:53:32,853 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_remove_interface [2022-11-02 20:53:32,854 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_remove_interface [2022-11-02 20:53:32,854 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_ioctl_siwmode [2022-11-02 20:53:32,854 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_ioctl_siwmode [2022-11-02 20:53:32,854 INFO L130 BoogieDeclarations]: Found specification of procedure dev_queue_xmit [2022-11-02 20:53:32,854 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_queue_xmit [2022-11-02 20:53:32,855 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-02 20:53:32,855 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-02 20:53:32,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 20:53:32,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 20:53:32,855 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_80211_get_hdrlen [2022-11-02 20:53:32,856 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_80211_get_hdrlen [2022-11-02 20:53:32,856 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~X~int~TO~int [2022-11-02 20:53:32,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~X~int~TO~int [2022-11-02 20:53:32,857 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_event_new_sta [2022-11-02 20:53:32,857 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_event_new_sta [2022-11-02 20:53:32,857 INFO L130 BoogieDeclarations]: Found specification of procedure eth_rebuild_header [2022-11-02 20:53:32,857 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_rebuild_header [2022-11-02 20:53:32,858 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-02 20:53:32,858 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-02 20:53:32,858 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_wds_special_addr [2022-11-02 20:53:32,858 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_wds_special_addr [2022-11-02 20:53:32,858 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-02 20:53:32,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-02 20:53:32,859 INFO L130 BoogieDeclarations]: Found specification of procedure ap_get_sta [2022-11-02 20:53:32,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_get_sta [2022-11-02 20:53:32,859 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-02 20:53:32,859 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-02 20:53:32,859 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_monitor_mode_enable [2022-11-02 20:53:32,860 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_monitor_mode_enable [2022-11-02 20:53:32,860 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-02 20:53:32,860 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-02 20:53:32,860 INFO L130 BoogieDeclarations]: Found specification of procedure ap_add_sta [2022-11-02 20:53:32,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_add_sta [2022-11-02 20:53:32,860 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-02 20:53:32,861 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-11-02 20:53:32,861 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-11-02 20:53:32,861 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-02 20:53:32,861 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-02 20:53:32,862 INFO L130 BoogieDeclarations]: Found specification of procedure eth_header_cache_update [2022-11-02 20:53:32,862 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_header_cache_update [2022-11-02 20:53:32,862 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-02 20:53:32,862 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-02 20:53:32,862 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_ioctl [2022-11-02 20:53:32,863 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_ioctl [2022-11-02 20:53:32,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:53:32,863 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2022-11-02 20:53:32,863 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2022-11-02 20:53:32,864 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-02 20:53:32,864 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-02 20:53:32,864 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-02 20:53:32,864 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-02 20:53:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_tim [2022-11-02 20:53:32,865 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_tim [2022-11-02 20:53:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-02 20:53:32,866 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-02 20:53:32,866 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-02 20:53:32,868 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-02 20:53:32,868 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-02 20:53:32,868 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-02 20:53:32,868 INFO L130 BoogieDeclarations]: Found specification of procedure ap_sta_hash_del [2022-11-02 20:53:32,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_sta_hash_del [2022-11-02 20:53:32,868 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-02 20:53:32,869 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-02 20:53:32,869 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-02 20:53:32,869 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-02 20:53:32,869 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_sta_deauth [2022-11-02 20:53:32,870 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_sta_deauth [2022-11-02 20:53:32,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-02 20:53:32,870 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-02 20:53:32,871 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-02 20:53:32,872 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-02 20:53:32,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-02 20:53:32,872 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-02 20:53:32,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-02 20:53:32,872 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-11-02 20:53:32,873 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-11-02 20:53:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 20:53:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2022-11-02 20:53:32,873 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2022-11-02 20:53:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unshare [2022-11-02 20:53:32,873 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unshare [2022-11-02 20:53:32,874 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_send_mgmt [2022-11-02 20:53:32,874 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_send_mgmt [2022-11-02 20:53:32,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:53:32,874 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-02 20:53:32,875 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-02 20:53:32,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-02 20:53:32,875 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-02 20:53:32,876 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_wds_del [2022-11-02 20:53:32,876 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_wds_del [2022-11-02 20:53:32,876 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_close [2022-11-02 20:53:32,877 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_close [2022-11-02 20:53:32,877 INFO L130 BoogieDeclarations]: Found specification of procedure lib80211_get_crypto_ops [2022-11-02 20:53:32,877 INFO L138 BoogieDeclarations]: Found implementation of procedure lib80211_get_crypto_ops [2022-11-02 20:53:32,877 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_set_mac_address [2022-11-02 20:53:32,878 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_set_mac_address [2022-11-02 20:53:32,878 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_handle_sta_release [2022-11-02 20:53:32,879 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_handle_sta_release [2022-11-02 20:53:32,880 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2022-11-02 20:53:32,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2022-11-02 20:53:32,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:53:32,881 INFO L130 BoogieDeclarations]: Found specification of procedure ap_control_flush_macs [2022-11-02 20:53:32,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_control_flush_macs [2022-11-02 20:53:32,881 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_host_roaming [2022-11-02 20:53:32,881 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_host_roaming [2022-11-02 20:53:32,881 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-02 20:53:32,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-02 20:53:32,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:53:32,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:53:32,882 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-02 20:53:32,883 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 20:53:32,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 20:53:32,883 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-02 20:53:32,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-02 20:53:32,883 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_wds_add [2022-11-02 20:53:32,883 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_wds_add [2022-11-02 20:53:32,884 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-02 20:53:32,885 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-02 20:53:32,889 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_get_drvinfo [2022-11-02 20:53:32,889 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_get_drvinfo [2022-11-02 20:53:32,889 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_multicast_list [2022-11-02 20:53:32,889 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_multicast_list [2022-11-02 20:53:32,890 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_change_mtu [2022-11-02 20:53:32,892 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_change_mtu [2022-11-02 20:53:32,894 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_deauth_all_stas [2022-11-02 20:53:32,894 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_deauth_all_stas [2022-11-02 20:53:32,894 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~$Pointer$ [2022-11-02 20:53:32,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~$Pointer$ [2022-11-02 20:53:32,900 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-02 20:53:32,901 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-02 20:53:32,901 INFO L130 BoogieDeclarations]: Found specification of procedure skb_mac_header [2022-11-02 20:53:32,901 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_mac_header [2022-11-02 20:53:32,901 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-02 20:53:32,901 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-02 20:53:32,901 INFO L130 BoogieDeclarations]: Found specification of procedure eth_header_cache [2022-11-02 20:53:32,901 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_header_cache [2022-11-02 20:53:32,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:53:32,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:53:32,902 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-02 20:53:32,902 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-02 20:53:32,902 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2022-11-02 20:53:32,902 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2022-11-02 20:53:32,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-02 20:53:32,902 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_word [2022-11-02 20:53:32,903 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_word [2022-11-02 20:53:32,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-02 20:53:32,903 INFO L130 BoogieDeclarations]: Found specification of procedure ap_control_kickall [2022-11-02 20:53:32,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_control_kickall [2022-11-02 20:53:32,903 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_add_sta [2022-11-02 20:53:32,903 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_add_sta [2022-11-02 20:53:32,903 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-02 20:53:32,903 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-02 20:53:32,904 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-02 20:53:32,904 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-02 20:53:32,904 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-02 20:53:32,904 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-02 20:53:32,904 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_set_genericelement [2022-11-02 20:53:32,904 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_set_genericelement [2022-11-02 20:53:32,904 INFO L130 BoogieDeclarations]: Found specification of procedure ap_tx_rate_ok [2022-11-02 20:53:32,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_tx_rate_ok [2022-11-02 20:53:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2022-11-02 20:53:32,905 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2022-11-02 20:53:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data [2022-11-02 20:53:32,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data [2022-11-02 20:53:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure is_broadcast_ether_addr [2022-11-02 20:53:32,905 INFO L138 BoogieDeclarations]: Found implementation of procedure is_broadcast_ether_addr [2022-11-02 20:53:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2022-11-02 20:53:32,905 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2022-11-02 20:53:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-02 20:53:32,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-02 20:53:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_network_header [2022-11-02 20:53:32,906 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_network_header [2022-11-02 20:53:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-02 20:53:32,906 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-02 20:53:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 20:53:32,906 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 20:53:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-02 20:53:32,907 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-02 20:53:32,907 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data_offset [2022-11-02 20:53:32,907 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data_offset [2022-11-02 20:53:32,907 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-02 20:53:32,907 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-02 20:53:32,907 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-02 20:53:32,907 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-02 20:53:32,907 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-02 20:53:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-02 20:53:32,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:53:32,908 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir [2022-11-02 20:53:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir [2022-11-02 20:53:32,908 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_check_tx_rates [2022-11-02 20:53:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_check_tx_rates [2022-11-02 20:53:32,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:53:32,908 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-02 20:53:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-02 20:53:32,909 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_monitor_set_type [2022-11-02 20:53:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_monitor_set_type [2022-11-02 20:53:32,909 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_ctl [2022-11-02 20:53:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_ctl [2022-11-02 20:53:32,909 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-02 20:53:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-02 20:53:32,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:53:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~TO~int [2022-11-02 20:53:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~TO~int [2022-11-02 20:53:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-02 20:53:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-02 20:53:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-02 20:53:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-02 20:53:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2022-11-02 20:53:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2022-11-02 20:53:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-02 20:53:32,911 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-02 20:53:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-02 20:53:32,911 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-02 20:53:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-02 20:53:32,911 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-02 20:53:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_get_porttype [2022-11-02 20:53:32,911 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_get_porttype [2022-11-02 20:53:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~~u16~0~X~$Pointer$~X~$Pointer$~TO~int [2022-11-02 20:53:32,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~~u16~0~X~$Pointer$~X~$Pointer$~TO~int [2022-11-02 20:53:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure lib80211_crypt_delayed_deinit [2022-11-02 20:53:32,912 INFO L138 BoogieDeclarations]: Found implementation of procedure lib80211_crypt_delayed_deinit [2022-11-02 20:53:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_add_interface [2022-11-02 20:53:32,912 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_add_interface [2022-11-02 20:53:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_event_expired_sta [2022-11-02 20:53:32,912 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_event_expired_sta [2022-11-02 20:53:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-02 20:53:32,913 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-02 20:53:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-02 20:53:32,913 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-02 20:53:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_tx_timeout [2022-11-02 20:53:32,913 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_tx_timeout [2022-11-02 20:53:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:53:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-02 20:53:32,914 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-02 20:53:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-02 20:53:32,914 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-02 20:53:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-02 20:53:32,914 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-02 20:53:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure ap_free_sta [2022-11-02 20:53:32,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_free_sta [2022-11-02 20:53:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 20:53:32,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 20:53:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_80211_header_parse [2022-11-02 20:53:32,915 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_80211_header_parse [2022-11-02 20:53:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure ap_crypt_get_ptrs [2022-11-02 20:53:32,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_crypt_get_ptrs [2022-11-02 20:53:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_open [2022-11-02 20:53:32,915 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_open [2022-11-02 20:53:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-02 20:53:32,916 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-02 20:53:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-02 20:53:32,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-02 20:53:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-02 20:53:32,916 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-02 20:53:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-02 20:53:32,916 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-02 20:53:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-02 20:53:32,917 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-02 20:53:32,917 INFO L130 BoogieDeclarations]: Found specification of procedure create_proc_read_entry [2022-11-02 20:53:32,917 INFO L138 BoogieDeclarations]: Found implementation of procedure create_proc_read_entry [2022-11-02 20:53:32,917 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-02 20:53:32,917 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-02 20:53:32,917 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-02 20:53:32,917 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-02 20:53:32,917 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-02 20:53:32,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-02 20:53:32,918 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_sta_send_mgmt [2022-11-02 20:53:32,918 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_sta_send_mgmt [2022-11-02 20:53:32,918 INFO L130 BoogieDeclarations]: Found specification of procedure eth_header [2022-11-02 20:53:32,918 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_header [2022-11-02 20:53:32,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:53:32,918 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-02 20:53:32,919 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-02 20:53:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_request_hostscan [2022-11-02 20:53:32,919 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_request_hostscan [2022-11-02 20:53:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-11-02 20:53:32,919 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-11-02 20:53:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-02 20:53:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_set_encryption [2022-11-02 20:53:32,920 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_set_encryption [2022-11-02 20:53:34,041 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:53:34,051 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:57:21,192 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:57:21,219 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:57:21,219 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:57:21,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:57:21 BoogieIcfgContainer [2022-11-02 20:57:21,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:57:21,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:57:21,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:57:21,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:57:21,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:53:23" (1/3) ... [2022-11-02 20:57:21,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628b89ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:57:21, skipping insertion in model container [2022-11-02 20:57:21,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:53:31" (2/3) ... [2022-11-02 20:57:21,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628b89ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:57:21, skipping insertion in model container [2022-11-02 20:57:21,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:57:21" (3/3) ... [2022-11-02 20:57:21,237 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--net--wireless--hostap--hostap.ko-main.cil.out.i [2022-11-02 20:57:21,261 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:57:21,261 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:57:21,390 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:57:21,398 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;@7f2fd9a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:57:21,398 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:57:21,414 INFO L276 IsEmpty]: Start isEmpty. Operand has 2528 states, 1844 states have (on average 1.4164859002169197) internal successors, (2612), 1876 states have internal predecessors, (2612), 551 states have call successors, (551), 131 states have call predecessors, (551), 131 states have return successors, (551), 546 states have call predecessors, (551), 551 states have call successors, (551) [2022-11-02 20:57:21,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-02 20:57:21,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:21,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:21,455 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:21,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:21,464 INFO L85 PathProgramCache]: Analyzing trace with hash 787892539, now seen corresponding path program 1 times [2022-11-02 20:57:21,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:21,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302559076] [2022-11-02 20:57:21,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:21,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:23,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:57:23,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:23,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302559076] [2022-11-02 20:57:23,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302559076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:23,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:23,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:57:23,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402036215] [2022-11-02 20:57:23,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:23,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:57:23,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:23,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:57:23,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:57:23,226 INFO L87 Difference]: Start difference. First operand has 2528 states, 1844 states have (on average 1.4164859002169197) internal successors, (2612), 1876 states have internal predecessors, (2612), 551 states have call successors, (551), 131 states have call predecessors, (551), 131 states have return successors, (551), 546 states have call predecessors, (551), 551 states have call successors, (551) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:57:24,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:24,109 INFO L93 Difference]: Finished difference Result 7545 states and 11320 transitions. [2022-11-02 20:57:24,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:57:24,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-02 20:57:24,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:24,218 INFO L225 Difference]: With dead ends: 7545 [2022-11-02 20:57:24,218 INFO L226 Difference]: Without dead ends: 5016 [2022-11-02 20:57:24,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:57:24,263 INFO L413 NwaCegarLoop]: 4377 mSDtfsCounter, 3670 mSDsluCounter, 3682 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3670 SdHoareTripleChecker+Valid, 8059 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:24,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3670 Valid, 8059 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:57:24,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5016 states. [2022-11-02 20:57:24,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5016 to 5016. [2022-11-02 20:57:24,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5016 states, 3660 states have (on average 1.4155737704918032) internal successors, (5181), 3718 states have internal predecessors, (5181), 1096 states have call successors, (1096), 260 states have call predecessors, (1096), 259 states have return successors, (1093), 1083 states have call predecessors, (1093), 1093 states have call successors, (1093) [2022-11-02 20:57:24,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5016 states to 5016 states and 7370 transitions. [2022-11-02 20:57:24,721 INFO L78 Accepts]: Start accepts. Automaton has 5016 states and 7370 transitions. Word has length 20 [2022-11-02 20:57:24,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:24,721 INFO L495 AbstractCegarLoop]: Abstraction has 5016 states and 7370 transitions. [2022-11-02 20:57:24,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:57:24,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5016 states and 7370 transitions. [2022-11-02 20:57:24,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-02 20:57:24,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:24,732 INFO L195 NwaCegarLoop]: trace histogram [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 20:57:24,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:57:24,733 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:24,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:24,733 INFO L85 PathProgramCache]: Analyzing trace with hash -266367509, now seen corresponding path program 1 times [2022-11-02 20:57:24,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:24,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646117985] [2022-11-02 20:57:24,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:24,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:25,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:57:25,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:25,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646117985] [2022-11-02 20:57:25,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646117985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:25,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:25,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:57:25,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042688318] [2022-11-02 20:57:25,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:25,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:57:25,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:25,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:57:25,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:57:25,961 INFO L87 Difference]: Start difference. First operand 5016 states and 7370 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:57:27,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:27,433 INFO L93 Difference]: Finished difference Result 10028 states and 14735 transitions. [2022-11-02 20:57:27,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:57:27,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-02 20:57:27,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:27,480 INFO L225 Difference]: With dead ends: 10028 [2022-11-02 20:57:27,481 INFO L226 Difference]: Without dead ends: 5015 [2022-11-02 20:57:27,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:57:27,517 INFO L413 NwaCegarLoop]: 4682 mSDtfsCounter, 4699 mSDsluCounter, 3840 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4699 SdHoareTripleChecker+Valid, 8522 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:27,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4699 Valid, 8522 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-02 20:57:27,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5015 states. [2022-11-02 20:57:27,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5015 to 5015. [2022-11-02 20:57:27,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5015 states, 3659 states have (on average 1.4148674501229843) internal successors, (5177), 3717 states have internal predecessors, (5177), 1096 states have call successors, (1096), 260 states have call predecessors, (1096), 259 states have return successors, (1093), 1083 states have call predecessors, (1093), 1093 states have call successors, (1093) [2022-11-02 20:57:27,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5015 states to 5015 states and 7366 transitions. [2022-11-02 20:57:27,832 INFO L78 Accepts]: Start accepts. Automaton has 5015 states and 7366 transitions. Word has length 24 [2022-11-02 20:57:27,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:27,833 INFO L495 AbstractCegarLoop]: Abstraction has 5015 states and 7366 transitions. [2022-11-02 20:57:27,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:57:27,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5015 states and 7366 transitions. [2022-11-02 20:57:27,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-02 20:57:27,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:27,843 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:57:27,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:57:27,844 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:27,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:27,844 INFO L85 PathProgramCache]: Analyzing trace with hash 554698027, now seen corresponding path program 1 times [2022-11-02 20:57:27,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:27,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12953678] [2022-11-02 20:57:27,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:27,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:28,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:28,588 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-02 20:57:28,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:28,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12953678] [2022-11-02 20:57:28,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12953678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:28,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:28,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:57:28,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863706123] [2022-11-02 20:57:28,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:28,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:57:28,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:28,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:57:28,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:57:28,594 INFO L87 Difference]: Start difference. First operand 5015 states and 7366 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:57:29,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:29,046 INFO L93 Difference]: Finished difference Result 5017 states and 7367 transitions. [2022-11-02 20:57:29,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:57:29,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-11-02 20:57:29,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:29,098 INFO L225 Difference]: With dead ends: 5017 [2022-11-02 20:57:29,098 INFO L226 Difference]: Without dead ends: 5014 [2022-11-02 20:57:29,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:57:29,111 INFO L413 NwaCegarLoop]: 3699 mSDtfsCounter, 3675 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3675 SdHoareTripleChecker+Valid, 3699 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:29,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3675 Valid, 3699 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:57:29,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5014 states. [2022-11-02 20:57:29,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5014 to 5014. [2022-11-02 20:57:29,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5014 states, 3659 states have (on average 1.4145941514074885) internal successors, (5176), 3716 states have internal predecessors, (5176), 1095 states have call successors, (1095), 260 states have call predecessors, (1095), 259 states have return successors, (1093), 1083 states have call predecessors, (1093), 1093 states have call successors, (1093) [2022-11-02 20:57:29,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5014 states to 5014 states and 7364 transitions. [2022-11-02 20:57:29,475 INFO L78 Accepts]: Start accepts. Automaton has 5014 states and 7364 transitions. Word has length 37 [2022-11-02 20:57:29,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:29,476 INFO L495 AbstractCegarLoop]: Abstraction has 5014 states and 7364 transitions. [2022-11-02 20:57:29,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:57:29,478 INFO L276 IsEmpty]: Start isEmpty. Operand 5014 states and 7364 transitions. [2022-11-02 20:57:29,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-02 20:57:29,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:29,487 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:57:29,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:57:29,488 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:29,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:29,489 INFO L85 PathProgramCache]: Analyzing trace with hash 14605536, now seen corresponding path program 1 times [2022-11-02 20:57:29,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:29,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803164401] [2022-11-02 20:57:29,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:29,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:30,245 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-02 20:57:30,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:30,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803164401] [2022-11-02 20:57:30,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803164401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:30,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:30,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:57:30,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969964247] [2022-11-02 20:57:30,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:30,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:57:30,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:30,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:57:30,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:57:30,249 INFO L87 Difference]: Start difference. First operand 5014 states and 7364 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:57:30,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:30,709 INFO L93 Difference]: Finished difference Result 5016 states and 7365 transitions. [2022-11-02 20:57:30,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:57:30,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-11-02 20:57:30,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:30,758 INFO L225 Difference]: With dead ends: 5016 [2022-11-02 20:57:30,759 INFO L226 Difference]: Without dead ends: 5013 [2022-11-02 20:57:30,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:57:30,775 INFO L413 NwaCegarLoop]: 3697 mSDtfsCounter, 3672 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3672 SdHoareTripleChecker+Valid, 3697 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:30,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3672 Valid, 3697 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:57:30,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5013 states. [2022-11-02 20:57:31,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5013 to 5013. [2022-11-02 20:57:31,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5013 states, 3659 states have (on average 1.4143208526919924) internal successors, (5175), 3715 states have internal predecessors, (5175), 1094 states have call successors, (1094), 260 states have call predecessors, (1094), 259 states have return successors, (1093), 1083 states have call predecessors, (1093), 1093 states have call successors, (1093) [2022-11-02 20:57:31,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5013 states to 5013 states and 7362 transitions. [2022-11-02 20:57:31,148 INFO L78 Accepts]: Start accepts. Automaton has 5013 states and 7362 transitions. Word has length 38 [2022-11-02 20:57:31,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:31,149 INFO L495 AbstractCegarLoop]: Abstraction has 5013 states and 7362 transitions. [2022-11-02 20:57:31,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:57:31,149 INFO L276 IsEmpty]: Start isEmpty. Operand 5013 states and 7362 transitions. [2022-11-02 20:57:31,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-02 20:57:31,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:31,162 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:57:31,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:57:31,163 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:31,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:31,163 INFO L85 PathProgramCache]: Analyzing trace with hash 451612366, now seen corresponding path program 1 times [2022-11-02 20:57:31,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:31,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427184975] [2022-11-02 20:57:31,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:31,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:31,859 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-02 20:57:31,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:31,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427184975] [2022-11-02 20:57:31,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427184975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:31,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:31,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:57:31,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956362029] [2022-11-02 20:57:31,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:31,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:57:31,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:31,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:57:31,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:57:31,863 INFO L87 Difference]: Start difference. First operand 5013 states and 7362 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:57:32,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:32,519 INFO L93 Difference]: Finished difference Result 5013 states and 7362 transitions. [2022-11-02 20:57:32,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:57:32,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-11-02 20:57:32,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:32,536 INFO L225 Difference]: With dead ends: 5013 [2022-11-02 20:57:32,536 INFO L226 Difference]: Without dead ends: 0 [2022-11-02 20:57:32,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:57:32,564 INFO L413 NwaCegarLoop]: 3695 mSDtfsCounter, 3668 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3668 SdHoareTripleChecker+Valid, 3695 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:32,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3668 Valid, 3695 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:57:32,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-02 20:57:32,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-02 20:57:32,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:57:32,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-02 20:57:32,569 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2022-11-02 20:57:32,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:32,570 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:57:32,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:57:32,571 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-02 20:57:32,571 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-02 20:57:32,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:57:32,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:57:32,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.