./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bd980f-6a3c-4541-9567-d32bae8ac0fe/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bd980f-6a3c-4541-9567-d32bae8ac0fe/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bd980f-6a3c-4541-9567-d32bae8ac0fe/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bd980f-6a3c-4541-9567-d32bae8ac0fe/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bd980f-6a3c-4541-9567-d32bae8ac0fe/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bd980f-6a3c-4541-9567-d32bae8ac0fe/bin/uautomizer-DQz5hQGWxF --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 7d25bbb840c6f559a01e66a93b808b4e2f90bfa6cd2fb8a6d1b061ad8c317d14 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:35:13,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:35:13,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:35:13,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:35:13,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:35:13,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:35:13,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:35:13,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:35:13,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:35:13,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:35:13,121 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:35:13,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:35:13,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:35:13,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:35:13,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:35:13,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:35:13,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:35:13,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:35:13,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:35:13,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:35:13,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:35:13,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:35:13,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:35:13,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:35:13,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:35:13,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:35:13,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:35:13,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:35:13,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:35:13,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:35:13,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:35:13,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:35:13,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:35:13,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:35:13,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:35:13,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:35:13,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:35:13,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:35:13,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:35:13,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:35:13,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:35:13,182 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bd980f-6a3c-4541-9567-d32bae8ac0fe/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 07:35:13,234 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:35:13,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:35:13,235 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:35:13,235 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:35:13,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:35:13,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:35:13,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:35:13,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:35:13,237 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:35:13,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:35:13,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:35:13,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:35:13,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:35:13,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:35:13,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:35:13,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:35:13,240 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:35:13,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:35:13,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:35:13,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:35:13,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:35:13,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:35:13,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:35:13,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:35:13,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:35:13,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:35:13,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:35:13,243 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:35:13,243 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:35:13,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:35:13,245 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:35:13,245 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_e8bd980f-6a3c-4541-9567-d32bae8ac0fe/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bd980f-6a3c-4541-9567-d32bae8ac0fe/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d25bbb840c6f559a01e66a93b808b4e2f90bfa6cd2fb8a6d1b061ad8c317d14 [2021-11-20 07:35:13,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:35:13,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:35:13,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:35:13,528 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:35:13,529 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:35:13,530 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bd980f-6a3c-4541-9567-d32bae8ac0fe/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.i [2021-11-20 07:35:13,592 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bd980f-6a3c-4541-9567-d32bae8ac0fe/bin/uautomizer-DQz5hQGWxF/data/9641116ef/a5e208e849804a6fb6f15f6ca205bcc4/FLAG311b13771 [2021-11-20 07:35:14,744 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:35:14,745 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bd980f-6a3c-4541-9567-d32bae8ac0fe/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.i [2021-11-20 07:35:14,821 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bd980f-6a3c-4541-9567-d32bae8ac0fe/bin/uautomizer-DQz5hQGWxF/data/9641116ef/a5e208e849804a6fb6f15f6ca205bcc4/FLAG311b13771 [2021-11-20 07:35:14,909 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bd980f-6a3c-4541-9567-d32bae8ac0fe/bin/uautomizer-DQz5hQGWxF/data/9641116ef/a5e208e849804a6fb6f15f6ca205bcc4 [2021-11-20 07:35:14,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:35:14,913 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:35:14,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:35:14,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:35:14,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:35:14,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:35:14" (1/1) ... [2021-11-20 07:35:14,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dce7740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:14, skipping insertion in model container [2021-11-20 07:35:14,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:35:14" (1/1) ... [2021-11-20 07:35:14,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:35:15,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:35:23,098 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_e8bd980f-6a3c-4541-9567-d32bae8ac0fe/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.i[707977,707990] [2021-11-20 07:35:23,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:35:23,362 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:35:24,617 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_e8bd980f-6a3c-4541-9567-d32bae8ac0fe/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.i[707977,707990] [2021-11-20 07:35:24,626 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:35:25,249 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:35:25,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:25 WrapperNode [2021-11-20 07:35:25,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:35:25,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:35:25,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:35:25,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:35:25,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:25" (1/1) ... [2021-11-20 07:35:25,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:25" (1/1) ... [2021-11-20 07:35:26,162 INFO L137 Inliner]: procedures = 738, calls = 10941, calls flagged for inlining = 281, calls inlined = 249, statements flattened = 18182 [2021-11-20 07:35:26,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:35:26,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:35:26,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:35:26,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:35:26,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:25" (1/1) ... [2021-11-20 07:35:26,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:25" (1/1) ... [2021-11-20 07:35:26,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:25" (1/1) ... [2021-11-20 07:35:26,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:25" (1/1) ... [2021-11-20 07:35:26,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:25" (1/1) ... [2021-11-20 07:35:26,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:25" (1/1) ... [2021-11-20 07:35:26,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:25" (1/1) ... [2021-11-20 07:35:27,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:35:27,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:35:27,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:35:27,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:35:27,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:25" (1/1) ... [2021-11-20 07:35:27,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:35:27,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bd980f-6a3c-4541-9567-d32bae8ac0fe/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:35:27,076 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bd980f-6a3c-4541-9567-d32bae8ac0fe/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:35:27,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bd980f-6a3c-4541-9567-d32bae8ac0fe/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:35:27,125 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mac_event_disconnected [2021-11-20 07:35:27,125 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mac_event_disconnected [2021-11-20 07:35:27,125 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2021-11-20 07:35:27,125 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2021-11-20 07:35:27,125 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-20 07:35:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 07:35:27,126 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 07:35:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_access [2021-11-20 07:35:27,126 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_access [2021-11-20 07:35:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2021-11-20 07:35:27,126 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2021-11-20 07:35:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-20 07:35:27,127 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-20 07:35:27,127 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-20 07:35:27,127 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-20 07:35:27,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-20 07:35:27,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-20 07:35:27,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 07:35:27,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 07:35:27,128 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_channel [2021-11-20 07:35:27,128 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_channel [2021-11-20 07:35:27,128 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_mesh [2021-11-20 07:35:27,128 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_mesh [2021-11-20 07:35:27,129 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2021-11-20 07:35:27,129 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2021-11-20 07:35:27,129 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-11-20 07:35:27,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-11-20 07:35:27,129 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2021-11-20 07:35:27,129 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2021-11-20 07:35:27,129 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_scan [2021-11-20 07:35:27,130 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_scan [2021-11-20 07:35:27,130 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2021-11-20 07:35:27,130 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2021-11-20 07:35:27,130 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-20 07:35:27,130 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-20 07:35:27,130 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_ps_confirm_sleep [2021-11-20 07:35:27,130 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_ps_confirm_sleep [2021-11-20 07:35:27,131 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~~u16~0~TO~int [2021-11-20 07:35:27,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~~u16~0~TO~int [2021-11-20 07:35:27,131 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_free [2021-11-20 07:35:27,131 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_free [2021-11-20 07:35:27,132 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_host_sleep_cfg [2021-11-20 07:35:27,132 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_host_sleep_cfg [2021-11-20 07:35:27,132 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2021-11-20 07:35:27,132 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2021-11-20 07:35:27,132 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 07:35:27,132 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-20 07:35:27,132 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-20 07:35:27,133 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-20 07:35:27,133 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-20 07:35:27,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 07:35:27,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 07:35:27,134 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 07:35:27,134 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 07:35:27,134 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-20 07:35:27,134 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_key_material [2021-11-20 07:35:27,134 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_key_material [2021-11-20 07:35:27,136 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cmd_async [2021-11-20 07:35:27,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cmd_async [2021-11-20 07:35:27,136 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_wep_keys [2021-11-20 07:35:27,136 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_wep_keys [2021-11-20 07:35:27,136 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-20 07:35:27,136 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-20 07:35:27,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:35:27,137 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_auth_to_authtype [2021-11-20 07:35:27,137 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_auth_to_authtype [2021-11-20 07:35:27,137 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-11-20 07:35:27,138 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-11-20 07:35:27,138 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-11-20 07:35:27,138 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-11-20 07:35:27,138 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-20 07:35:27,138 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-20 07:35:27,139 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_eth_stop [2021-11-20 07:35:27,139 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_eth_stop [2021-11-20 07:35:27,140 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-11-20 07:35:27,140 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-11-20 07:35:27,140 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_free_adapter [2021-11-20 07:35:27,140 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_free_adapter [2021-11-20 07:35:27,140 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 07:35:27,140 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 07:35:27,140 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_iface_active [2021-11-20 07:35:27,140 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_iface_active [2021-11-20 07:35:27,141 INFO L130 BoogieDeclarations]: Found specification of procedure _internal_start_scan [2021-11-20 07:35:27,141 INFO L138 BoogieDeclarations]: Found implementation of procedure _internal_start_scan [2021-11-20 07:35:27,141 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_ps_mode [2021-11-20 07:35:27,141 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_ps_mode [2021-11-20 07:35:27,141 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-20 07:35:27,141 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-20 07:35:27,141 INFO L130 BoogieDeclarations]: Found specification of procedure add_ie_rates [2021-11-20 07:35:27,142 INFO L138 BoogieDeclarations]: Found implementation of procedure add_ie_rates [2021-11-20 07:35:27,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 07:35:27,142 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_mesh [2021-11-20 07:35:27,143 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_mesh [2021-11-20 07:35:27,143 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_ethtool_get_eeprom_len [2021-11-20 07:35:27,143 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_ethtool_get_eeprom_len [2021-11-20 07:35:27,143 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2021-11-20 07:35:27,144 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2021-11-20 07:35:27,144 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cmd_async [2021-11-20 07:35:27,144 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cmd_async [2021-11-20 07:35:27,145 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_activated [2021-11-20 07:35:27,145 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_activated [2021-11-20 07:35:27,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 07:35:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_complete_command [2021-11-20 07:35:27,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_complete_command [2021-11-20 07:35:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2021-11-20 07:35:27,146 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2021-11-20 07:35:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2021-11-20 07:35:27,146 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2021-11-20 07:35:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:35:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 07:35:27,147 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 07:35:27,147 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_mcast_worker [2021-11-20 07:35:27,147 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_mcast_worker [2021-11-20 07:35:27,147 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-20 07:35:27,147 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-20 07:35:27,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 07:35:27,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 07:35:27,148 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-20 07:35:27,149 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-20 07:35:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-20 07:35:27,151 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-20 07:35:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2021-11-20 07:35:27,152 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2021-11-20 07:35:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_disconnect [2021-11-20 07:35:27,154 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_disconnect [2021-11-20 07:35:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2021-11-20 07:35:27,155 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2021-11-20 07:35:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-20 07:35:27,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-20 07:35:27,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 07:35:27,160 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2021-11-20 07:35:27,161 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2021-11-20 07:35:27,161 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-20 07:35:27,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-20 07:35:27,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:35:27,161 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_stop [2021-11-20 07:35:27,161 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_stop [2021-11-20 07:35:27,161 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_dev_open [2021-11-20 07:35:27,161 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_dev_open [2021-11-20 07:35:27,162 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_wep_keys [2021-11-20 07:35:27,162 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_wep_keys [2021-11-20 07:35:27,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 07:35:27,162 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_complete_command [2021-11-20 07:35:27,162 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_complete_command [2021-11-20 07:35:27,162 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 07:35:27,162 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2021-11-20 07:35:27,162 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2021-11-20 07:35:27,162 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 07:35:27,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 07:35:27,163 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-20 07:35:27,163 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-20 07:35:27,163 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 07:35:27,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 07:35:27,163 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-20 07:35:27,163 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-20 07:35:27,163 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_snmp_mib [2021-11-20 07:35:27,163 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_snmp_mib [2021-11-20 07:35:27,164 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_update_mcast [2021-11-20 07:35:27,164 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_update_mcast [2021-11-20 07:35:27,164 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_11d_domain_info [2021-11-20 07:35:27,164 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_11d_domain_info [2021-11-20 07:35:27,164 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-20 07:35:27,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-20 07:35:27,164 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 07:35:27,164 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 07:35:27,165 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_rates [2021-11-20 07:35:27,165 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_rates [2021-11-20 07:35:27,165 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-20 07:35:27,165 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-20 07:35:27,165 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-20 07:35:27,165 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-20 07:35:27,165 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_iface_type [2021-11-20 07:35:27,165 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_iface_type [2021-11-20 07:35:27,165 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_mac_control [2021-11-20 07:35:27,166 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_mac_control [2021-11-20 07:35:27,166 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-20 07:35:27,166 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-20 07:35:27,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:35:27,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:35:27,166 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_resume [2021-11-20 07:35:27,166 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_resume [2021-11-20 07:35:27,166 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_add_key [2021-11-20 07:35:27,167 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_add_key [2021-11-20 07:35:27,167 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-20 07:35:27,167 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-20 07:35:27,167 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_dev_open [2021-11-20 07:35:27,167 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_dev_open [2021-11-20 07:35:27,167 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_set_mesh_channel [2021-11-20 07:35:27,167 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_set_mesh_channel [2021-11-20 07:35:27,167 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_leave_ibss [2021-11-20 07:35:27,167 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_leave_ibss [2021-11-20 07:35:27,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 07:35:27,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 07:35:27,169 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_get_chandef_type [2021-11-20 07:35:27,169 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_get_chandef_type [2021-11-20 07:35:27,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 07:35:27,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 07:35:27,169 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_scan_worker [2021-11-20 07:35:27,170 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_scan_worker [2021-11-20 07:35:27,170 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-20 07:35:27,170 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-20 07:35:27,170 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_get_channel [2021-11-20 07:35:27,170 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_get_channel [2021-11-20 07:35:27,170 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-20 07:35:27,170 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-20 07:35:27,170 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-20 07:35:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-20 07:35:27,171 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_suspend [2021-11-20 07:35:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_suspend [2021-11-20 07:35:27,171 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-20 07:35:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-20 07:35:27,171 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-20 07:35:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-20 07:35:27,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-20 07:35:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-20 07:35:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_multicast_list [2021-11-20 07:35:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_multicast_list [2021-11-20 07:35:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-20 07:35:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-20 07:35:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_set_monitor_channel [2021-11-20 07:35:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_set_monitor_channel [2021-11-20 07:35:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2021-11-20 07:35:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2021-11-20 07:35:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 07:35:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 07:35:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_get_bss [2021-11-20 07:35:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_get_bss [2021-11-20 07:35:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 07:35:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 07:35:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_thread [2021-11-20 07:35:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_thread [2021-11-20 07:35:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_scan_done [2021-11-20 07:35:27,174 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_scan_done [2021-11-20 07:35:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-20 07:35:27,174 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-20 07:35:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure eth_broadcast_addr [2021-11-20 07:35:27,174 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_broadcast_addr [2021-11-20 07:35:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-20 07:35:27,174 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-20 07:35:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-20 07:35:27,175 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-20 07:35:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-20 07:35:27,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-20 07:35:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2021-11-20 07:35:27,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2021-11-20 07:35:27,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2021-11-20 07:35:27,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2021-11-20 07:35:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:35:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_5 [2021-11-20 07:35:27,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_5 [2021-11-20 07:35:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 07:35:27,180 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 07:35:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_deep_sleep [2021-11-20 07:35:27,180 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_deep_sleep [2021-11-20 07:35:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_change_intf [2021-11-20 07:35:27,182 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_change_intf [2021-11-20 07:35:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex [2021-11-20 07:35:27,182 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex [2021-11-20 07:35:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-20 07:35:27,182 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-20 07:35:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 07:35:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_2 [2021-11-20 07:35:27,183 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_2 [2021-11-20 07:35:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-20 07:35:27,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-20 07:35:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_setup_firmware [2021-11-20 07:35:27,183 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_setup_firmware [2021-11-20 07:35:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_del_key [2021-11-20 07:35:27,183 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_del_key [2021-11-20 07:35:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_2 [2021-11-20 07:35:27,184 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_2 [2021-11-20 07:35:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 07:35:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-20 07:35:27,184 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-20 07:35:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_config [2021-11-20 07:35:27,184 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_config [2021-11-20 07:35:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 07:35:27,184 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 07:35:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-20 07:35:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-20 07:35:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-11-20 07:35:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-11-20 07:35:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-20 07:35:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-20 07:35:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_monitor_mode [2021-11-20 07:35:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_monitor_mode [2021-11-20 07:35:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_join_ibss [2021-11-20 07:35:27,186 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_join_ibss [2021-11-20 07:35:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure simple_read_from_buffer [2021-11-20 07:35:27,186 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_read_from_buffer [2021-11-20 07:35:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-20 07:35:27,186 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-20 07:35:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-11-20 07:35:27,186 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-11-20 07:35:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_bss_get_ie [2021-11-20 07:35:27,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_bss_get_ie [2021-11-20 07:35:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-20 07:35:27,187 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-20 07:35:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cmd [2021-11-20 07:35:27,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cmd [2021-11-20 07:35:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_command_queue_empty [2021-11-20 07:35:27,187 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_command_queue_empty [2021-11-20 07:35:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2021-11-20 07:35:27,187 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2021-11-20 07:35:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_set_default_key [2021-11-20 07:35:27,188 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_set_default_key [2021-11-20 07:35:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_enable_rsn [2021-11-20 07:35:27,188 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_enable_rsn [2021-11-20 07:35:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_process_event [2021-11-20 07:35:27,188 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_process_event [2021-11-20 07:35:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 07:35:27,188 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 07:35:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2021-11-20 07:35:27,188 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2021-11-20 07:35:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_send_mic_failureevent [2021-11-20 07:35:27,189 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_send_mic_failureevent [2021-11-20 07:35:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2021-11-20 07:35:27,189 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2021-11-20 07:35:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 07:35:27,189 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 07:35:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_join_post [2021-11-20 07:35:27,189 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_join_post [2021-11-20 07:35:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 07:35:27,189 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 07:35:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2021-11-20 07:35:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-11-20 07:35:27,190 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-11-20 07:35:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:35:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_stop_iface [2021-11-20 07:35:27,190 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_stop_iface [2021-11-20 07:35:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-20 07:35:27,190 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-20 07:35:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 07:35:27,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 07:35:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_radio [2021-11-20 07:35:27,191 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_radio [2021-11-20 07:35:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_debugfs_write [2021-11-20 07:35:27,191 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_debugfs_write [2021-11-20 07:35:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_mcast_addrs [2021-11-20 07:35:27,191 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_mcast_addrs [2021-11-20 07:35:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_iface [2021-11-20 07:35:27,191 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_iface [2021-11-20 07:35:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-20 07:35:27,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-20 07:35:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_mac_address [2021-11-20 07:35:27,192 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_mac_address [2021-11-20 07:35:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-20 07:35:27,192 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-20 07:35:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-20 07:35:27,192 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-20 07:35:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure mesh_get_default_parameters [2021-11-20 07:35:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure mesh_get_default_parameters [2021-11-20 07:35:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex___3 [2021-11-20 07:35:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex___3 [2021-11-20 07:35:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_deb_hex___0 [2021-11-20 07:35:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_deb_hex___0 [2021-11-20 07:35:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-20 07:35:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-20 07:35:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_ssid_tlv [2021-11-20 07:35:27,193 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_ssid_tlv [2021-11-20 07:35:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_2 [2021-11-20 07:35:27,194 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_2 [2021-11-20 07:35:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_17 [2021-11-20 07:35:27,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_17 [2021-11-20 07:35:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_hard_start_xmit [2021-11-20 07:35:27,194 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_hard_start_xmit [2021-11-20 07:35:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_mesh_config_send [2021-11-20 07:35:27,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_mesh_config_send [2021-11-20 07:35:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_config_send [2021-11-20 07:35:27,194 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_config_send [2021-11-20 07:35:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_disconnected [2021-11-20 07:35:27,195 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_disconnected [2021-11-20 07:35:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-20 07:35:27,195 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-20 07:35:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cleanup_and_insert_cmd [2021-11-20 07:35:27,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cleanup_and_insert_cmd [2021-11-20 07:35:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-11-20 07:35:27,195 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-11-20 07:35:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_host_sleep [2021-11-20 07:35:27,196 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_host_sleep [2021-11-20 07:35:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:35:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_get_station [2021-11-20 07:35:27,196 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_get_station [2021-11-20 07:35:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-20 07:35:27,196 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-20 07:35:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-20 07:35:27,196 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-20 07:35:29,026 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:35:29,035 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:35:29,340 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 07:42:45,772 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:42:45,812 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:42:45,812 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:42:45,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:42:45 BoogieIcfgContainer [2021-11-20 07:42:45,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:42:45,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:42:45,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:42:45,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:42:45,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:35:14" (1/3) ... [2021-11-20 07:42:45,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e60592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:42:45, skipping insertion in model container [2021-11-20 07:42:45,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:25" (2/3) ... [2021-11-20 07:42:45,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e60592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:42:45, skipping insertion in model container [2021-11-20 07:42:45,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:42:45" (3/3) ... [2021-11-20 07:42:45,830 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--libertas--libertas.ko-entry_point.cil.out.i [2021-11-20 07:42:45,840 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:42:45,840 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:42:45,919 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:42:45,930 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 07:42:45,931 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:42:46,051 INFO L276 IsEmpty]: Start isEmpty. Operand has 5396 states, 4032 states have (on average 1.3963293650793651) internal successors, (5630), 4132 states have internal predecessors, (5630), 1180 states have call successors, (1180), 183 states have call predecessors, (1180), 182 states have return successors, (1159), 1138 states have call predecessors, (1159), 1159 states have call successors, (1159) [2021-11-20 07:42:46,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-20 07:42:46,088 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:46,089 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:42:46,089 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:42:46,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:46,094 INFO L85 PathProgramCache]: Analyzing trace with hash 193080484, now seen corresponding path program 1 times [2021-11-20 07:42:46,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:46,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10064846] [2021-11-20 07:42:46,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:46,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:47,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:42:47,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:47,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:42:47,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:47,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:42:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:47,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:42:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:47,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:42:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:47,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:42:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:47,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-20 07:42:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:48,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:42:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:48,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-20 07:42:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:48,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:42:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:48,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:42:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:48,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-20 07:42:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:48,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:42:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:48,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:42:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:48,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-20 07:42:48,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:48,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:42:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:48,200 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-11-20 07:42:48,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:48,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10064846] [2021-11-20 07:42:48,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10064846] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:48,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:48,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:42:48,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196694995] [2021-11-20 07:42:48,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:48,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:42:48,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:48,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:42:48,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:42:48,254 INFO L87 Difference]: Start difference. First operand has 5396 states, 4032 states have (on average 1.3963293650793651) internal successors, (5630), 4132 states have internal predecessors, (5630), 1180 states have call successors, (1180), 183 states have call predecessors, (1180), 182 states have return successors, (1159), 1138 states have call predecessors, (1159), 1159 states have call successors, (1159) Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-20 07:42:50,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:42:52,603 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:01,265 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:03,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:06,380 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:08,393 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:12,801 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:19,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:21,625 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:21,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:21,960 INFO L93 Difference]: Finished difference Result 11510 states and 17359 transitions. [2021-11-20 07:43:21,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:43:21,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 118 [2021-11-20 07:43:21,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:22,049 INFO L225 Difference]: With dead ends: 11510 [2021-11-20 07:43:22,050 INFO L226 Difference]: Without dead ends: 6070 [2021-11-20 07:43:22,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:43:22,095 INFO L933 BasicCegarLoop]: 7496 mSDtfsCounter, 3743 mSDsluCounter, 7512 mSDsCounter, 0 mSdLazyCounter, 4241 mSolverCounterSat, 3145 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3839 SdHoareTripleChecker+Valid, 15008 SdHoareTripleChecker+Invalid, 7394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3145 IncrementalHoareTripleChecker+Valid, 4241 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.9s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:22,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3839 Valid, 15008 Invalid, 7394 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3145 Valid, 4241 Invalid, 8 Unknown, 0 Unchecked, 32.9s Time] [2021-11-20 07:43:22,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6070 states. [2021-11-20 07:43:22,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6070 to 5347. [2021-11-20 07:43:22,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 4009 states have (on average 1.3898727862309803) internal successors, (5572), 4086 states have internal predecessors, (5572), 1156 states have call successors, (1156), 182 states have call predecessors, (1156), 181 states have return successors, (1155), 1134 states have call predecessors, (1155), 1155 states have call successors, (1155) [2021-11-20 07:43:22,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 7883 transitions. [2021-11-20 07:43:22,676 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 7883 transitions. Word has length 118 [2021-11-20 07:43:22,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:22,677 INFO L470 AbstractCegarLoop]: Abstraction has 5347 states and 7883 transitions. [2021-11-20 07:43:22,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-20 07:43:22,677 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 7883 transitions. [2021-11-20 07:43:22,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-20 07:43:22,695 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:22,696 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:22,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:43:22,696 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:43:22,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:22,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1675440348, now seen corresponding path program 1 times [2021-11-20 07:43:22,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:22,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859947635] [2021-11-20 07:43:22,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:22,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:23,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:43:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:23,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:43:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:23,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:43:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:23,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:43:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:23,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:43:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:23,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:43:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:23,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-20 07:43:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:23,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:43:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:23,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-20 07:43:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:23,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:43:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:23,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:43:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:24,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-20 07:43:24,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:24,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:43:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:24,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:43:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:24,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-20 07:43:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:24,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:43:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:24,122 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-11-20 07:43:24,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:24,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859947635] [2021-11-20 07:43:24,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859947635] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:24,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:24,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:43:24,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652413373] [2021-11-20 07:43:24,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:24,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:43:24,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:24,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:43:24,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:43:24,126 INFO L87 Difference]: Start difference. First operand 5347 states and 7883 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-20 07:43:25,920 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:34,821 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:37,829 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:40,486 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:49,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:52,520 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:55,921 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:58,867 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:03,675 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:03,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:03,850 INFO L93 Difference]: Finished difference Result 17382 states and 26040 transitions. [2021-11-20 07:44:03,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:44:03,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 118 [2021-11-20 07:44:03,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:03,975 INFO L225 Difference]: With dead ends: 17382 [2021-11-20 07:44:03,975 INFO L226 Difference]: Without dead ends: 12049 [2021-11-20 07:44:04,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:44:04,020 INFO L933 BasicCegarLoop]: 8302 mSDtfsCounter, 19044 mSDsluCounter, 10725 mSDsCounter, 0 mSdLazyCounter, 5641 mSolverCounterSat, 10431 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19809 SdHoareTripleChecker+Valid, 19027 SdHoareTripleChecker+Invalid, 16080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10431 IncrementalHoareTripleChecker+Valid, 5641 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.9s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:04,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19809 Valid, 19027 Invalid, 16080 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10431 Valid, 5641 Invalid, 8 Unknown, 0 Unchecked, 38.9s Time] [2021-11-20 07:44:04,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12049 states. [2021-11-20 07:44:04,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12049 to 10598. [2021-11-20 07:44:04,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10598 states, 7954 states have (on average 1.3921297460397284) internal successors, (11073), 8108 states have internal predecessors, (11073), 2281 states have call successors, (2281), 363 states have call predecessors, (2281), 362 states have return successors, (2280), 2237 states have call predecessors, (2280), 2280 states have call successors, (2280) [2021-11-20 07:44:04,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10598 states to 10598 states and 15634 transitions. [2021-11-20 07:44:04,905 INFO L78 Accepts]: Start accepts. Automaton has 10598 states and 15634 transitions. Word has length 118 [2021-11-20 07:44:04,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:04,908 INFO L470 AbstractCegarLoop]: Abstraction has 10598 states and 15634 transitions. [2021-11-20 07:44:04,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-20 07:44:04,909 INFO L276 IsEmpty]: Start isEmpty. Operand 10598 states and 15634 transitions. [2021-11-20 07:44:04,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-20 07:44:04,928 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:04,928 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:04,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:44:04,929 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:44:04,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:04,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1985766109, now seen corresponding path program 1 times [2021-11-20 07:44:04,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:04,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67669106] [2021-11-20 07:44:04,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:04,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:06,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:44:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:06,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:44:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:06,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:44:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:06,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:44:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:06,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:44:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:06,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:44:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:06,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-20 07:44:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:06,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:44:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:06,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 07:44:06,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:06,236 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 07:44:06,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:06,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67669106] [2021-11-20 07:44:06,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67669106] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:06,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:06,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 07:44:06,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034571084] [2021-11-20 07:44:06,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:06,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:44:06,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:06,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:44:06,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:44:06,240 INFO L87 Difference]: Start difference. First operand 10598 states and 15634 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 07:44:08,651 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:10,669 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:12,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:14,690 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:30,561 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:32,582 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:35,475 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:37,499 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:38,875 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:41,258 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:43,275 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:46,731 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:55,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:57,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:58,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:58,157 INFO L93 Difference]: Finished difference Result 25051 states and 37860 transitions. [2021-11-20 07:44:58,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 07:44:58,157 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 100 [2021-11-20 07:44:58,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:58,285 INFO L225 Difference]: With dead ends: 25051 [2021-11-20 07:44:58,285 INFO L226 Difference]: Without dead ends: 14467 [2021-11-20 07:44:58,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2021-11-20 07:44:58,354 INFO L933 BasicCegarLoop]: 7668 mSDtfsCounter, 15913 mSDsluCounter, 10696 mSDsCounter, 0 mSdLazyCounter, 7203 mSolverCounterSat, 7743 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16737 SdHoareTripleChecker+Valid, 18364 SdHoareTripleChecker+Invalid, 14957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7743 IncrementalHoareTripleChecker+Valid, 7203 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.9s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:58,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16737 Valid, 18364 Invalid, 14957 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7743 Valid, 7203 Invalid, 11 Unknown, 0 Unchecked, 50.9s Time] [2021-11-20 07:44:58,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14467 states. [2021-11-20 07:44:59,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14467 to 10619. [2021-11-20 07:44:59,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10619 states, 7969 states have (on average 1.3910151838373699) internal successors, (11085), 8121 states have internal predecessors, (11085), 2282 states have call successors, (2282), 368 states have call predecessors, (2282), 367 states have return successors, (2281), 2240 states have call predecessors, (2281), 2281 states have call successors, (2281) [2021-11-20 07:44:59,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10619 states to 10619 states and 15648 transitions. [2021-11-20 07:44:59,299 INFO L78 Accepts]: Start accepts. Automaton has 10619 states and 15648 transitions. Word has length 100 [2021-11-20 07:44:59,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:59,301 INFO L470 AbstractCegarLoop]: Abstraction has 10619 states and 15648 transitions. [2021-11-20 07:44:59,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 07:44:59,301 INFO L276 IsEmpty]: Start isEmpty. Operand 10619 states and 15648 transitions. [2021-11-20 07:44:59,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-20 07:44:59,311 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:59,312 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:59,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:44:59,312 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:44:59,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:59,313 INFO L85 PathProgramCache]: Analyzing trace with hash 442415020, now seen corresponding path program 1 times [2021-11-20 07:44:59,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:59,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483860600] [2021-11-20 07:44:59,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:59,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:00,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:45:00,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:00,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:45:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:00,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:45:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:00,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:45:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:00,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:45:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:00,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:45:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:00,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-20 07:45:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:00,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:45:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:00,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-20 07:45:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:00,510 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 07:45:00,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:45:00,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483860600] [2021-11-20 07:45:00,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483860600] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:45:00,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:45:00,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 07:45:00,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398059908] [2021-11-20 07:45:00,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:45:00,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:45:00,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:45:00,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:45:00,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:45:00,513 INFO L87 Difference]: Start difference. First operand 10619 states and 15648 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 07:45:02,867 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:45:04,371 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:45:06,398 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:45:18,845 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:45:22,672 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:45:25,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:45:28,949 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:45:35,954 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:45:36,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:45:36,386 INFO L93 Difference]: Finished difference Result 25149 states and 37955 transitions. [2021-11-20 07:45:36,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:45:36,387 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 101 [2021-11-20 07:45:36,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:45:36,478 INFO L225 Difference]: With dead ends: 25149 [2021-11-20 07:45:36,479 INFO L226 Difference]: Without dead ends: 14567 [2021-11-20 07:45:36,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2021-11-20 07:45:36,524 INFO L933 BasicCegarLoop]: 7687 mSDtfsCounter, 24220 mSDsluCounter, 7619 mSDsCounter, 0 mSdLazyCounter, 5140 mSolverCounterSat, 12775 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25055 SdHoareTripleChecker+Valid, 15306 SdHoareTripleChecker+Invalid, 17921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12775 IncrementalHoareTripleChecker+Valid, 5140 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:45:36,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25055 Valid, 15306 Invalid, 17921 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12775 Valid, 5140 Invalid, 6 Unknown, 0 Unchecked, 34.8s Time] [2021-11-20 07:45:36,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14567 states. [2021-11-20 07:45:37,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14567 to 10707. [2021-11-20 07:45:37,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10707 states, 8031 states have (on average 1.3892416884572283) internal successors, (11157), 8185 states have internal predecessors, (11157), 2290 states have call successors, (2290), 386 states have call predecessors, (2290), 385 states have return successors, (2289), 2248 states have call predecessors, (2289), 2289 states have call successors, (2289) [2021-11-20 07:45:37,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10707 states to 10707 states and 15736 transitions. [2021-11-20 07:45:37,473 INFO L78 Accepts]: Start accepts. Automaton has 10707 states and 15736 transitions. Word has length 101 [2021-11-20 07:45:37,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:45:37,474 INFO L470 AbstractCegarLoop]: Abstraction has 10707 states and 15736 transitions. [2021-11-20 07:45:37,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 07:45:37,474 INFO L276 IsEmpty]: Start isEmpty. Operand 10707 states and 15736 transitions. [2021-11-20 07:45:37,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-20 07:45:37,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:45:37,484 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:45:37,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 07:45:37,485 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:45:37,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:45:37,486 INFO L85 PathProgramCache]: Analyzing trace with hash -780965899, now seen corresponding path program 1 times [2021-11-20 07:45:37,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:45:37,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853125626] [2021-11-20 07:45:37,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:45:37,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:45:37,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:38,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:45:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:38,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:45:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:38,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:45:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:38,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:45:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:38,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:45:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:38,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:45:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:38,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-20 07:45:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:38,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:45:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:38,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 07:45:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:38,752 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 07:45:38,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:45:38,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853125626] [2021-11-20 07:45:38,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853125626] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:45:38,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:45:38,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 07:45:38,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024135377] [2021-11-20 07:45:38,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:45:38,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:45:38,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:45:38,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:45:38,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:45:38,755 INFO L87 Difference]: Start difference. First operand 10707 states and 15736 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 07:45:40,784 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:45:42,808 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:45:44,838 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:45:55,592 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:45:59,133 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:46:03,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:46:09,970 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:46:10,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:46:10,403 INFO L93 Difference]: Finished difference Result 25235 states and 38037 transitions. [2021-11-20 07:46:10,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:46:10,404 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 102 [2021-11-20 07:46:10,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:46:10,489 INFO L225 Difference]: With dead ends: 25235 [2021-11-20 07:46:10,489 INFO L226 Difference]: Without dead ends: 14565 [2021-11-20 07:46:10,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2021-11-20 07:46:10,534 INFO L933 BasicCegarLoop]: 7773 mSDtfsCounter, 30703 mSDsluCounter, 7699 mSDsCounter, 0 mSdLazyCounter, 5083 mSolverCounterSat, 15966 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31508 SdHoareTripleChecker+Valid, 15472 SdHoareTripleChecker+Invalid, 21055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15966 IncrementalHoareTripleChecker+Valid, 5083 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:46:10,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31508 Valid, 15472 Invalid, 21055 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15966 Valid, 5083 Invalid, 6 Unknown, 0 Unchecked, 30.6s Time] [2021-11-20 07:46:10,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14565 states. [2021-11-20 07:46:11,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14565 to 10705. [2021-11-20 07:46:11,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10705 states, 8031 states have (on average 1.3889926534678123) internal successors, (11155), 8183 states have internal predecessors, (11155), 2288 states have call successors, (2288), 386 states have call predecessors, (2288), 385 states have return successors, (2287), 2248 states have call predecessors, (2287), 2287 states have call successors, (2287) [2021-11-20 07:46:11,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10705 states to 10705 states and 15730 transitions. [2021-11-20 07:46:11,690 INFO L78 Accepts]: Start accepts. Automaton has 10705 states and 15730 transitions. Word has length 102 [2021-11-20 07:46:11,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:46:11,691 INFO L470 AbstractCegarLoop]: Abstraction has 10705 states and 15730 transitions. [2021-11-20 07:46:11,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 07:46:11,691 INFO L276 IsEmpty]: Start isEmpty. Operand 10705 states and 15730 transitions. [2021-11-20 07:46:11,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-20 07:46:11,702 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:46:11,702 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:46:11,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 07:46:11,703 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:46:11,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:46:11,703 INFO L85 PathProgramCache]: Analyzing trace with hash -675206140, now seen corresponding path program 1 times [2021-11-20 07:46:11,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:46:11,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159401813] [2021-11-20 07:46:11,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:46:11,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:46:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:12,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:46:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:12,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:46:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:12,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:46:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:12,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:46:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:12,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:46:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:12,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:46:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:12,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-20 07:46:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:12,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:46:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:12,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-20 07:46:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:12,804 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 07:46:12,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:46:12,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159401813] [2021-11-20 07:46:12,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159401813] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:46:12,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:46:12,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 07:46:12,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621046772] [2021-11-20 07:46:12,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:46:12,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:46:12,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:46:12,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:46:12,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:46:12,807 INFO L87 Difference]: Start difference. First operand 10705 states and 15730 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 07:46:14,676 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:46:16,552 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:46:18,580 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:46:26,880 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:46:29,559 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:46:33,167 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:46:37,349 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:46:44,807 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:46:45,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:46:45,318 INFO L93 Difference]: Finished difference Result 25181 states and 37951 transitions. [2021-11-20 07:46:45,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:46:45,319 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 103 [2021-11-20 07:46:45,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:46:45,395 INFO L225 Difference]: With dead ends: 25181 [2021-11-20 07:46:45,396 INFO L226 Difference]: Without dead ends: 14513 [2021-11-20 07:46:45,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2021-11-20 07:46:45,434 INFO L933 BasicCegarLoop]: 7700 mSDtfsCounter, 17456 mSDsluCounter, 7653 mSDsCounter, 0 mSdLazyCounter, 5173 mSolverCounterSat, 9264 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18273 SdHoareTripleChecker+Valid, 15353 SdHoareTripleChecker+Invalid, 14442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9264 IncrementalHoareTripleChecker+Valid, 5173 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:46:45,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18273 Valid, 15353 Invalid, 14442 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9264 Valid, 5173 Invalid, 5 Unknown, 0 Unchecked, 31.4s Time] [2021-11-20 07:46:45,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14513 states. [2021-11-20 07:46:46,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14513 to 10657. [2021-11-20 07:46:46,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10657 states, 7999 states have (on average 1.3890486310788848) internal successors, (11111), 8149 states have internal predecessors, (11111), 2274 states have call successors, (2274), 384 states have call predecessors, (2274), 383 states have return successors, (2273), 2234 states have call predecessors, (2273), 2273 states have call successors, (2273) [2021-11-20 07:46:46,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10657 states to 10657 states and 15658 transitions. [2021-11-20 07:46:46,341 INFO L78 Accepts]: Start accepts. Automaton has 10657 states and 15658 transitions. Word has length 103 [2021-11-20 07:46:46,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:46:46,342 INFO L470 AbstractCegarLoop]: Abstraction has 10657 states and 15658 transitions. [2021-11-20 07:46:46,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 07:46:46,342 INFO L276 IsEmpty]: Start isEmpty. Operand 10657 states and 15658 transitions. [2021-11-20 07:46:46,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-20 07:46:46,361 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:46:46,362 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:46:46,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 07:46:46,362 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:46:46,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:46:46,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1514710525, now seen corresponding path program 1 times [2021-11-20 07:46:46,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:46:46,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101966919] [2021-11-20 07:46:46,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:46:46,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:46:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:46:47,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:46:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:46:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:46:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:46:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:46:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-20 07:46:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:46:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 07:46:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:46:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:46:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 07:46:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:46:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:46:47,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:46:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:46:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:46:47,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 07:46:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:46:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:46:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-20 07:46:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:46:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 07:46:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:46:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 07:46:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:46:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:46:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:46:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:47,769 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2021-11-20 07:46:47,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:46:47,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101966919] [2021-11-20 07:46:47,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101966919] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:46:47,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:46:47,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:46:47,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614546558] [2021-11-20 07:46:47,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:46:47,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:46:47,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:46:47,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:46:47,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:46:47,772 INFO L87 Difference]: Start difference. First operand 10657 states and 15658 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-20 07:46:50,159 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:46:57,987 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:01,192 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:04,389 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:15,265 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:17,476 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:21,623 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:26,807 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:27,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:47:27,034 INFO L93 Difference]: Finished difference Result 34347 states and 51362 transitions. [2021-11-20 07:47:27,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:47:27,035 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 192 [2021-11-20 07:47:27,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:47:27,167 INFO L225 Difference]: With dead ends: 34347 [2021-11-20 07:47:27,167 INFO L226 Difference]: Without dead ends: 23727 [2021-11-20 07:47:27,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:47:27,215 INFO L933 BasicCegarLoop]: 8281 mSDtfsCounter, 15649 mSDsluCounter, 13789 mSDsCounter, 0 mSdLazyCounter, 8203 mSolverCounterSat, 7331 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16397 SdHoareTripleChecker+Valid, 22070 SdHoareTripleChecker+Invalid, 15542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7331 IncrementalHoareTripleChecker+Valid, 8203 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.9s IncrementalHoareTripleChecker+Time [2021-11-20 07:47:27,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16397 Valid, 22070 Invalid, 15542 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7331 Valid, 8203 Invalid, 8 Unknown, 0 Unchecked, 37.9s Time] [2021-11-20 07:47:27,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23727 states. [2021-11-20 07:47:28,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23727 to 20924. [2021-11-20 07:47:28,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20924 states, 15723 states have (on average 1.3915919353812884) internal successors, (21880), 16024 states have internal predecessors, (21880), 4467 states have call successors, (4467), 730 states have call predecessors, (4467), 733 states have return successors, (4482), 4391 states have call predecessors, (4482), 4466 states have call successors, (4482) [2021-11-20 07:47:28,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20924 states to 20924 states and 30829 transitions. [2021-11-20 07:47:28,816 INFO L78 Accepts]: Start accepts. Automaton has 20924 states and 30829 transitions. Word has length 192 [2021-11-20 07:47:28,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:47:28,817 INFO L470 AbstractCegarLoop]: Abstraction has 20924 states and 30829 transitions. [2021-11-20 07:47:28,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-20 07:47:28,817 INFO L276 IsEmpty]: Start isEmpty. Operand 20924 states and 30829 transitions. [2021-11-20 07:47:28,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-20 07:47:28,839 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:47:28,840 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:47:28,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 07:47:28,840 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:47:28,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:47:28,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1207775938, now seen corresponding path program 1 times [2021-11-20 07:47:28,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:47:28,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76370155] [2021-11-20 07:47:28,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:47:28,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:47:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:29,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:47:29,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:29,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:47:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:29,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:47:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:29,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:47:29,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:29,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:47:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:29,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:47:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:29,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-20 07:47:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:29,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:47:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:29,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-20 07:47:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:29,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:47:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:29,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:47:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:29,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-20 07:47:29,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:29,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:47:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:29,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:47:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:29,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-20 07:47:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:29,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-20 07:47:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:29,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:47:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:29,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-20 07:47:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:29,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:47:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:30,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-20 07:47:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:30,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:47:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:30,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-20 07:47:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:30,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-20 07:47:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:30,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-11-20 07:47:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:30,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-20 07:47:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:30,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:47:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:30,128 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-20 07:47:30,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:47:30,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76370155] [2021-11-20 07:47:30,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76370155] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:47:30,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:47:30,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:47:30,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707772578] [2021-11-20 07:47:30,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:47:30,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:47:30,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:47:30,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:47:30,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:47:30,131 INFO L87 Difference]: Start difference. First operand 20924 states and 30829 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 07:47:31,775 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:33,565 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:41,768 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:44,312 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:47,433 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:51,048 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:57,889 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:58,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:47:58,855 INFO L93 Difference]: Finished difference Result 49225 states and 74298 transitions. [2021-11-20 07:47:58,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 07:47:58,861 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 217 [2021-11-20 07:47:58,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:47:59,011 INFO L225 Difference]: With dead ends: 49225 [2021-11-20 07:47:59,012 INFO L226 Difference]: Without dead ends: 28338 [2021-11-20 07:47:59,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:47:59,095 INFO L933 BasicCegarLoop]: 7513 mSDtfsCounter, 17444 mSDsluCounter, 7457 mSDsCounter, 0 mSdLazyCounter, 4921 mSolverCounterSat, 9263 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18254 SdHoareTripleChecker+Valid, 14970 SdHoareTripleChecker+Invalid, 14189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9263 IncrementalHoareTripleChecker+Valid, 4921 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:47:59,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18254 Valid, 14970 Invalid, 14189 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9263 Valid, 4921 Invalid, 5 Unknown, 0 Unchecked, 27.3s Time] [2021-11-20 07:47:59,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28338 states. [2021-11-20 07:48:00,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28338 to 20688. [2021-11-20 07:48:00,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20688 states, 15543 states have (on average 1.3898217847262433) internal successors, (21602), 15840 states have internal predecessors, (21602), 4413 states have call successors, (4413), 730 states have call predecessors, (4413), 731 states have return successors, (4418), 4337 states have call predecessors, (4418), 4412 states have call successors, (4418) [2021-11-20 07:48:00,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20688 states to 20688 states and 30433 transitions. [2021-11-20 07:48:00,630 INFO L78 Accepts]: Start accepts. Automaton has 20688 states and 30433 transitions. Word has length 217 [2021-11-20 07:48:00,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:48:00,630 INFO L470 AbstractCegarLoop]: Abstraction has 20688 states and 30433 transitions. [2021-11-20 07:48:00,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 07:48:00,631 INFO L276 IsEmpty]: Start isEmpty. Operand 20688 states and 30433 transitions. [2021-11-20 07:48:00,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-20 07:48:00,650 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:48:00,651 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:48:00,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 07:48:00,651 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:48:00,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:48:00,652 INFO L85 PathProgramCache]: Analyzing trace with hash -970346720, now seen corresponding path program 1 times [2021-11-20 07:48:00,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:48:00,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131842181] [2021-11-20 07:48:00,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:48:00,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:48:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 07:48:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:48:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:48:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:48:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:48:01,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:48:01,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-20 07:48:01,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:48:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 07:48:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 07:48:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:48:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-20 07:48:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:48:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 07:48:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-20 07:48:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-20 07:48:01,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 07:48:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-20 07:48:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 07:48:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-20 07:48:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:01,686 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-20 07:48:01,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:48:01,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131842181] [2021-11-20 07:48:01,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131842181] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:48:01,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:48:01,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:48:01,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433076188] [2021-11-20 07:48:01,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:48:01,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:48:01,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:48:01,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:48:01,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:48:01,690 INFO L87 Difference]: Start difference. First operand 20688 states and 30433 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 07:48:03,290 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:48:05,321 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:48:14,790 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:48:19,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []