./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c4fd7f-6734-4ef7-81df-6c3ceea598b6/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c4fd7f-6734-4ef7-81df-6c3ceea598b6/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c4fd7f-6734-4ef7-81df-6c3ceea598b6/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c4fd7f-6734-4ef7-81df-6c3ceea598b6/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c4fd7f-6734-4ef7-81df-6c3ceea598b6/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c4fd7f-6734-4ef7-81df-6c3ceea598b6/bin/uautomizer-J5u9QxTXDZ --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 45d50512968d8a5bc3a4421084a535ec5be167ebcbc64243053751565ac4780e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:13:17,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:13:17,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:13:17,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:13:17,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:13:17,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:13:17,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:13:17,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:13:17,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:13:17,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:13:17,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:13:17,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:13:17,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:13:17,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:13:17,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:13:17,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:13:17,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:13:17,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:13:17,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:13:17,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:13:17,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:13:17,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:13:17,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:13:17,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:13:17,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:13:17,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:13:17,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:13:17,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:13:17,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:13:17,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:13:17,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:13:17,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:13:17,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:13:17,318 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:13:17,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:13:17,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:13:17,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:13:17,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:13:17,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:13:17,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:13:17,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:13:17,324 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c4fd7f-6734-4ef7-81df-6c3ceea598b6/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:13:17,354 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:13:17,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:13:17,354 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:13:17,355 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:13:17,355 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:13:17,356 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:13:17,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:13:17,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:13:17,357 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:13:17,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:13:17,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:13:17,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:13:17,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:13:17,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:13:17,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:13:17,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:13:17,359 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:13:17,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:13:17,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:13:17,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:13:17,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:13:17,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:13:17,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:13:17,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:13:17,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:13:17,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:13:17,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:13:17,362 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:13:17,362 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:13:17,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:13:17,362 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_c6c4fd7f-6734-4ef7-81df-6c3ceea598b6/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c4fd7f-6734-4ef7-81df-6c3ceea598b6/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45d50512968d8a5bc3a4421084a535ec5be167ebcbc64243053751565ac4780e [2022-10-17 10:13:17,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:13:17,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:13:17,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:13:17,768 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:13:17,769 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:13:17,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c4fd7f-6734-4ef7-81df-6c3ceea598b6/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i [2022-10-17 10:13:17,846 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c4fd7f-6734-4ef7-81df-6c3ceea598b6/bin/uautomizer-J5u9QxTXDZ/data/785e984cd/431807248dc8458a8e9a0e3633f1543d/FLAG9cc1bbd52 [2022-10-17 10:13:18,992 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:13:18,993 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c4fd7f-6734-4ef7-81df-6c3ceea598b6/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i [2022-10-17 10:13:19,072 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c4fd7f-6734-4ef7-81df-6c3ceea598b6/bin/uautomizer-J5u9QxTXDZ/data/785e984cd/431807248dc8458a8e9a0e3633f1543d/FLAG9cc1bbd52 [2022-10-17 10:13:19,232 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c4fd7f-6734-4ef7-81df-6c3ceea598b6/bin/uautomizer-J5u9QxTXDZ/data/785e984cd/431807248dc8458a8e9a0e3633f1543d [2022-10-17 10:13:19,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:13:19,238 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:13:19,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:13:19,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:13:19,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:13:19,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:13:19" (1/1) ... [2022-10-17 10:13:19,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a41eb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:19, skipping insertion in model container [2022-10-17 10:13:19,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:13:19" (1/1) ... [2022-10-17 10:13:19,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:13:19,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:13:20,447 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_c6c4fd7f-6734-4ef7-81df-6c3ceea598b6/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i[212867,212880] [2022-10-17 10:13:22,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:13:22,379 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:13:22,656 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_c6c4fd7f-6734-4ef7-81df-6c3ceea598b6/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i[212867,212880] [2022-10-17 10:13:23,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:13:23,284 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:13:23,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:23 WrapperNode [2022-10-17 10:13:23,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:13:23,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:13:23,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:13:23,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:13:23,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:23" (1/1) ... [2022-10-17 10:13:23,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:23" (1/1) ... [2022-10-17 10:13:23,771 INFO L138 Inliner]: procedures = 241, calls = 3122, calls flagged for inlining = 111, calls inlined = 96, statements flattened = 6329 [2022-10-17 10:13:23,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:13:23,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:13:23,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:13:23,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:13:23,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:23" (1/1) ... [2022-10-17 10:13:23,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:23" (1/1) ... [2022-10-17 10:13:23,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:23" (1/1) ... [2022-10-17 10:13:23,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:23" (1/1) ... [2022-10-17 10:13:24,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:23" (1/1) ... [2022-10-17 10:13:24,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:23" (1/1) ... [2022-10-17 10:13:24,182 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:23" (1/1) ... [2022-10-17 10:13:24,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:23" (1/1) ... [2022-10-17 10:13:24,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:13:24,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:13:24,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:13:24,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:13:24,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:23" (1/1) ... [2022-10-17 10:13:24,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:13:24,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c4fd7f-6734-4ef7-81df-6c3ceea598b6/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:13:24,314 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c4fd7f-6734-4ef7-81df-6c3ceea598b6/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:13:24,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6c4fd7f-6734-4ef7-81df-6c3ceea598b6/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:13:24,375 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_fw_ps_tdma [2022-10-17 10:13:24,376 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_fw_ps_tdma [2022-10-17 10:13:24,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 10:13:24,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 10:13:24,377 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_write_1byte [2022-10-17 10:13:24,377 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_write_1byte [2022-10-17 10:13:24,377 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2022-10-17 10:13:24,377 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2022-10-17 10:13:24,377 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_nomal_low_power [2022-10-17 10:13:24,378 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_nomal_low_power [2022-10-17 10:13:24,378 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2022-10-17 10:13:24,378 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2022-10-17 10:13:24,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 10:13:24,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 10:13:24,379 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_is_wifi_uplink [2022-10-17 10:13:24,379 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_is_wifi_uplink [2022-10-17 10:13:24,379 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2022-10-17 10:13:24,379 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2022-10-17 10:13:24,379 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2022-10-17 10:13:24,380 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2022-10-17 10:13:24,380 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~$Pointer$~TO~VOID [2022-10-17 10:13:24,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~$Pointer$~TO~VOID [2022-10-17 10:13:24,380 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 10:13:24,380 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 10:13:24,381 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b_med_stat_notify [2022-10-17 10:13:24,381 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b_med_stat_notify [2022-10-17 10:13:24,381 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_ps_tdma [2022-10-17 10:13:24,381 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_ps_tdma [2022-10-17 10:13:24,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:13:24,382 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_tdma_duration_adjust [2022-10-17 10:13:24,382 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_tdma_duration_adjust [2022-10-17 10:13:24,382 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_ignore_wlan_act [2022-10-17 10:13:24,382 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_ignore_wlan_act [2022-10-17 10:13:24,382 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2022-10-17 10:13:24,383 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2022-10-17 10:13:24,383 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_4byte [2022-10-17 10:13:24,383 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_4byte [2022-10-17 10:13:24,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:13:24,383 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_write_4byte [2022-10-17 10:13:24,384 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_write_4byte [2022-10-17 10:13:24,384 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_get_wifi_rssi [2022-10-17 10:13:24,385 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_get_wifi_rssi [2022-10-17 10:13:24,385 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u16~0~TO~VOID [2022-10-17 10:13:24,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u16~0~TO~VOID [2022-10-17 10:13:24,385 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_scan_notify [2022-10-17 10:13:24,385 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_scan_notify [2022-10-17 10:13:24,386 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_leave_low_power [2022-10-17 10:13:24,386 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_leave_low_power [2022-10-17 10:13:24,386 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2022-10-17 10:13:24,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2022-10-17 10:13:24,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:13:24,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:13:24,387 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_connect_notify [2022-10-17 10:13:24,388 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_connect_notify [2022-10-17 10:13:24,388 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_wifi_rssi_state [2022-10-17 10:13:24,388 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_wifi_rssi_state [2022-10-17 10:13:24,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-17 10:13:24,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-17 10:13:24,390 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u8~0~TO~VOID [2022-10-17 10:13:24,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u8~0~TO~VOID [2022-10-17 10:13:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_dec_bt_pwr [2022-10-17 10:13:24,391 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_dec_bt_pwr [2022-10-17 10:13:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_dac_swing_reg [2022-10-17 10:13:24,391 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_dac_swing_reg [2022-10-17 10:13:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2022-10-17 10:13:24,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2022-10-17 10:13:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:13:24,393 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_coex_alloff [2022-10-17 10:13:24,393 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_coex_alloff [2022-10-17 10:13:24,394 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~TO~VOID [2022-10-17 10:13:24,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~TO~VOID [2022-10-17 10:13:24,395 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_bt_rssi_state [2022-10-17 10:13:24,395 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_bt_rssi_state [2022-10-17 10:13:24,395 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b_coex_tbl_type [2022-10-17 10:13:24,395 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b_coex_tbl_type [2022-10-17 10:13:24,396 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2022-10-17 10:13:24,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2022-10-17 10:13:24,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:13:24,396 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_enter_lps [2022-10-17 10:13:24,396 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_enter_lps [2022-10-17 10:13:24,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 10:13:24,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 10:13:24,397 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2022-10-17 10:13:24,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2022-10-17 10:13:24,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:13:24,398 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_1byte [2022-10-17 10:13:24,398 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_1byte [2022-10-17 10:13:24,398 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_is_bt_coexist_available [2022-10-17 10:13:24,398 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_is_bt_coexist_available [2022-10-17 10:13:24,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:13:24,400 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_sw_mechanism1 [2022-10-17 10:13:24,400 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_sw_mechanism1 [2022-10-17 10:13:24,400 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_sw_mechanism2 [2022-10-17 10:13:24,400 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_sw_mechanism2 [2022-10-17 10:13:24,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:13:24,401 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_fw_dac_swing_lvl [2022-10-17 10:13:24,402 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_fw_dac_swing_lvl [2022-10-17 10:13:24,402 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-17 10:13:24,402 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_fill_h2c_cmd [2022-10-17 10:13:24,403 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_fill_h2c_cmd [2022-10-17 10:13:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b_need_dec_pwr [2022-10-17 10:13:24,404 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b_need_dec_pwr [2022-10-17 10:13:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_coex_table [2022-10-17 10:13:24,404 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_coex_table [2022-10-17 10:13:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_leave_lps [2022-10-17 10:13:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_leave_lps [2022-10-17 10:13:24,405 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_run_coexist_mechanism [2022-10-17 10:13:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_run_coexist_mechanism [2022-10-17 10:13:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~~bool~0 [2022-10-17 10:13:24,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~~bool~0 [2022-10-17 10:13:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_ips_notify [2022-10-17 10:13:24,406 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_ips_notify [2022-10-17 10:13:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2022-10-17 10:13:24,407 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2022-10-17 10:13:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_write_2byte [2022-10-17 10:13:24,407 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_write_2byte [2022-10-17 10:13:24,408 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u8~0~TO~VOID [2022-10-17 10:13:24,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u8~0~TO~VOID [2022-10-17 10:13:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_2byte [2022-10-17 10:13:24,412 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_2byte [2022-10-17 10:13:24,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:13:24,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-10-17 10:13:24,413 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_set [2022-10-17 10:13:24,414 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_set [2022-10-17 10:13:24,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:13:24,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:13:24,416 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-10-17 10:13:24,416 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-10-17 10:13:25,418 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:13:25,422 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:13:27,817 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 10:13:33,956 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:13:33,989 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:13:33,989 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-17 10:13:33,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:13:33 BoogieIcfgContainer [2022-10-17 10:13:33,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:13:33,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:13:33,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:13:34,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:13:34,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:13:19" (1/3) ... [2022-10-17 10:13:34,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5564e2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:13:34, skipping insertion in model container [2022-10-17 10:13:34,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:13:23" (2/3) ... [2022-10-17 10:13:34,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5564e2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:13:34, skipping insertion in model container [2022-10-17 10:13:34,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:13:33" (3/3) ... [2022-10-17 10:13:34,007 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i [2022-10-17 10:13:34,028 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:13:34,029 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:13:34,210 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:13:34,218 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@45ad3a75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:13:34,218 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:13:34,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 2676 states, 1855 states have (on average 1.4695417789757412) internal successors, (2726), 1966 states have internal predecessors, (2726), 763 states have call successors, (763), 57 states have call predecessors, (763), 56 states have return successors, (760), 668 states have call predecessors, (760), 760 states have call successors, (760) [2022-10-17 10:13:34,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 10:13:34,245 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:13:34,246 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:13:34,246 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:13:34,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:34,251 INFO L85 PathProgramCache]: Analyzing trace with hash -616598543, now seen corresponding path program 1 times [2022-10-17 10:13:34,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:13:34,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083519333] [2022-10-17 10:13:34,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:13:34,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:13:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:35,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:13:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:35,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:13:35,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:13:35,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083519333] [2022-10-17 10:13:35,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083519333] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:13:35,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:13:35,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:13:35,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738366967] [2022-10-17 10:13:35,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:13:35,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:13:35,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:13:35,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:13:35,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:13:35,188 INFO L87 Difference]: Start difference. First operand has 2676 states, 1855 states have (on average 1.4695417789757412) internal successors, (2726), 1966 states have internal predecessors, (2726), 763 states have call successors, (763), 57 states have call predecessors, (763), 56 states have return successors, (760), 668 states have call predecessors, (760), 760 states have call successors, (760) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:13:36,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:13:45,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:13:45,397 INFO L93 Difference]: Finished difference Result 7328 states and 11814 transitions. [2022-10-17 10:13:45,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:13:45,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-10-17 10:13:45,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:13:45,513 INFO L225 Difference]: With dead ends: 7328 [2022-10-17 10:13:45,513 INFO L226 Difference]: Without dead ends: 4473 [2022-10-17 10:13:45,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:13:45,628 INFO L413 NwaCegarLoop]: 4430 mSDtfsCounter, 4279 mSDsluCounter, 5489 mSDsCounter, 0 mSdLazyCounter, 2147 mSolverCounterSat, 1578 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4509 SdHoareTripleChecker+Valid, 9919 SdHoareTripleChecker+Invalid, 3725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1578 IncrementalHoareTripleChecker+Valid, 2147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:13:45,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4509 Valid, 9919 Invalid, 3725 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1578 Valid, 2147 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-10-17 10:13:45,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4473 states. [2022-10-17 10:13:46,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4473 to 4321. [2022-10-17 10:13:46,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4321 states, 3070 states have (on average 1.4781758957654723) internal successors, (4538), 3220 states have internal predecessors, (4538), 1190 states have call successors, (1190), 61 states have call predecessors, (1190), 60 states have return successors, (1189), 1059 states have call predecessors, (1189), 1189 states have call successors, (1189) [2022-10-17 10:13:46,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4321 states to 4321 states and 6917 transitions. [2022-10-17 10:13:46,427 INFO L78 Accepts]: Start accepts. Automaton has 4321 states and 6917 transitions. Word has length 24 [2022-10-17 10:13:46,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:13:46,428 INFO L495 AbstractCegarLoop]: Abstraction has 4321 states and 6917 transitions. [2022-10-17 10:13:46,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:13:46,429 INFO L276 IsEmpty]: Start isEmpty. Operand 4321 states and 6917 transitions. [2022-10-17 10:13:46,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-17 10:13:46,432 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:13:46,433 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:13:46,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:13:46,433 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:13:46,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:46,434 INFO L85 PathProgramCache]: Analyzing trace with hash 140408385, now seen corresponding path program 1 times [2022-10-17 10:13:46,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:13:46,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860180690] [2022-10-17 10:13:46,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:13:46,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:13:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:46,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:13:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:46,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:13:46,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:13:46,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860180690] [2022-10-17 10:13:46,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860180690] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:13:46,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:13:46,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:13:46,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518726514] [2022-10-17 10:13:46,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:13:46,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:13:46,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:13:46,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:13:46,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:13:46,848 INFO L87 Difference]: Start difference. First operand 4321 states and 6917 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)