./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 02471c2dadff215655f9cac8e155a6dfd7f7fd622aa50515f4bca55da1c7d987 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 04:05:47,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 04:05:47,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 04:05:47,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 04:05:47,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 04:05:47,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 04:05:47,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 04:05:47,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 04:05:47,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 04:05:47,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 04:05:47,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 04:05:47,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 04:05:47,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 04:05:47,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 04:05:47,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 04:05:47,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 04:05:47,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 04:05:47,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 04:05:47,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 04:05:47,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 04:05:47,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 04:05:47,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 04:05:47,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 04:05:47,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 04:05:47,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 04:05:47,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 04:05:47,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 04:05:47,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 04:05:47,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 04:05:47,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 04:05:47,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 04:05:47,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 04:05:47,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 04:05:47,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 04:05:47,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 04:05:47,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 04:05:47,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 04:05:47,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 04:05:47,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 04:05:47,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 04:05:47,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 04:05:47,889 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 04:05:47,921 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 04:05:47,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 04:05:47,922 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 04:05:47,922 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 04:05:47,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 04:05:47,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 04:05:47,923 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 04:05:47,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 04:05:47,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 04:05:47,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 04:05:47,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 04:05:47,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 04:05:47,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 04:05:47,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 04:05:47,925 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 04:05:47,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 04:05:47,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 04:05:47,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 04:05:47,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 04:05:47,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 04:05:47,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 04:05:47,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 04:05:47,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 04:05:47,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 04:05:47,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 04:05:47,927 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 04:05:47,927 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 04:05:47,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 04:05:47,927 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 04:05:47,927 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02471c2dadff215655f9cac8e155a6dfd7f7fd622aa50515f4bca55da1c7d987 [2021-11-23 04:05:48,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 04:05:48,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 04:05:48,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 04:05:48,207 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 04:05:48,207 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 04:05:48,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i [2021-11-23 04:05:48,262 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3f668831/88c8db698305412e8b72bd17eb9dc161/FLAG49a5306a7 [2021-11-23 04:05:49,111 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 04:05:49,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i [2021-11-23 04:05:49,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3f668831/88c8db698305412e8b72bd17eb9dc161/FLAG49a5306a7 [2021-11-23 04:05:49,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3f668831/88c8db698305412e8b72bd17eb9dc161 [2021-11-23 04:05:49,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 04:05:49,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 04:05:49,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 04:05:49,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 04:05:49,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 04:05:49,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:05:49" (1/1) ... [2021-11-23 04:05:49,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6542df14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:49, skipping insertion in model container [2021-11-23 04:05:49,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:05:49" (1/1) ... [2021-11-23 04:05:49,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 04:05:49,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 04:06:00,958 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i[906568,906581] [2021-11-23 04:06:00,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i[906737,906750] [2021-11-23 04:06:00,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i[906904,906917] [2021-11-23 04:06:00,962 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i[907072,907085] [2021-11-23 04:06:01,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 04:06:01,142 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 04:06:01,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i[906568,906581] [2021-11-23 04:06:01,826 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i[906737,906750] [2021-11-23 04:06:01,826 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i[906904,906917] [2021-11-23 04:06:01,826 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i[907072,907085] [2021-11-23 04:06:01,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 04:06:02,174 INFO L208 MainTranslator]: Completed translation [2021-11-23 04:06:02,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:02 WrapperNode [2021-11-23 04:06:02,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 04:06:02,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 04:06:02,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 04:06:02,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 04:06:02,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:02" (1/1) ... [2021-11-23 04:06:02,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:02" (1/1) ... [2021-11-23 04:06:06,415 INFO L137 Inliner]: procedures = 898, calls = 11560, calls flagged for inlining = 2700, calls inlined = 17701, statements flattened = 260649 [2021-11-23 04:06:06,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 04:06:06,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 04:06:06,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 04:06:06,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 04:06:06,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:02" (1/1) ... [2021-11-23 04:06:06,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:02" (1/1) ... [2021-11-23 04:06:07,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:02" (1/1) ... [2021-11-23 04:06:07,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:02" (1/1) ... [2021-11-23 04:06:09,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:02" (1/1) ... [2021-11-23 04:06:09,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:02" (1/1) ... [2021-11-23 04:06:10,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:02" (1/1) ... [2021-11-23 04:06:11,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 04:06:11,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 04:06:11,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 04:06:11,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 04:06:11,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:02" (1/1) ... [2021-11-23 04:06:11,214 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 04:06:11,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 04:06:11,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 04:06:11,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 04:06:11,267 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cfg_register [2021-11-23 04:06:11,268 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_cfg_register [2021-11-23 04:06:11,268 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-23 04:06:11,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_35_6 [2021-11-23 04:06:11,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_35_6 [2021-11-23 04:06:11,268 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_mesh [2021-11-23 04:06:11,268 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_mesh [2021-11-23 04:06:11,268 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 04:06:11,268 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_eth_stop [2021-11-23 04:06:11,269 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_eth_stop [2021-11-23 04:06:11,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 04:06:11,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 04:06:11,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-23 04:06:11,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-23 04:06:11,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 04:06:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_stop [2021-11-23 04:06:11,270 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_stop [2021-11-23 04:06:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 04:06:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 04:06:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_65 [2021-11-23 04:06:11,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_65 [2021-11-23 04:06:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_59 [2021-11-23 04:06:11,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_59 [2021-11-23 04:06:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 04:06:11,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 04:06:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_resume [2021-11-23 04:06:11,271 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_resume [2021-11-23 04:06:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 04:06:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_thread [2021-11-23 04:06:11,271 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_thread [2021-11-23 04:06:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 04:06:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 04:06:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_process_event [2021-11-23 04:06:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_process_event [2021-11-23 04:06:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 04:06:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-23 04:06:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-23 04:06:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 04:06:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_mesh [2021-11-23 04:06:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_mesh [2021-11-23 04:06:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 04:06:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 04:06:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_mesh_dev_open [2021-11-23 04:06:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_mesh_dev_open [2021-11-23 04:06:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 04:06:11,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 04:06:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_dev_open [2021-11-23 04:06:11,274 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_dev_open [2021-11-23 04:06:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 04:06:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_suspend [2021-11-23 04:06:11,274 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_suspend [2021-11-23 04:06:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_set_deep_sleep [2021-11-23 04:06:11,275 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_set_deep_sleep [2021-11-23 04:06:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 04:06:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_card [2021-11-23 04:06:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_card [2021-11-23 04:06:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_stop_iface [2021-11-23 04:06:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_stop_iface [2021-11-23 04:06:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_iface [2021-11-23 04:06:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_iface [2021-11-23 04:06:11,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 04:06:13,425 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 04:06:13,427 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 04:12:55,333 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#1: ldv_switch_2_#res#1 := 0; [2021-11-23 04:12:55,336 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,336 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,337 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,337 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,337 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,337 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,337 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#7: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,337 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#8: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,337 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#9: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,339 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#32: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,339 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#31: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,339 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#30: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,339 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#22: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,339 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#21: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,339 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#24: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,340 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#23: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,340 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#20: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,340 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#29: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,340 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#26: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,340 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#25: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,340 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#28: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,341 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#27: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,341 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#11: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,341 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#10: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,341 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#13: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,341 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#12: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,341 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#19: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,342 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#18: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,342 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#15: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,342 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#14: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,342 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#17: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,342 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#16: ldv_switch_0_#res#1 := 0; [2021-11-23 04:12:55,349 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-23 04:12:55,349 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-23 04:12:55,352 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 04:13:01,887 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 04:13:02,037 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 04:13:02,038 INFO L301 CfgBuilder]: Removed 3315 assume(true) statements. [2021-11-23 04:13:02,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:13:02 BoogieIcfgContainer [2021-11-23 04:13:02,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 04:13:02,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 04:13:02,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 04:13:02,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 04:13:02,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:05:49" (1/3) ... [2021-11-23 04:13:02,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ecd314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:13:02, skipping insertion in model container [2021-11-23 04:13:02,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:02" (2/3) ... [2021-11-23 04:13:02,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ecd314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:13:02, skipping insertion in model container [2021-11-23 04:13:02,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:13:02" (3/3) ... [2021-11-23 04:13:02,090 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-libertas-libertas.cil.i [2021-11-23 04:13:02,094 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 04:13:02,095 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 999 error locations. [2021-11-23 04:13:02,252 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 04:13:02,257 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 [2021-11-23 04:13:02,257 INFO L340 AbstractCegarLoop]: Starting to check reachability of 999 error locations. [2021-11-23 04:13:02,833 INFO L276 IsEmpty]: Start isEmpty. Operand has 65010 states, 63958 states have (on average 1.4586447356077425) internal successors, (93292), 64957 states have internal predecessors, (93292), 33 states have call successors, (33), 20 states have call predecessors, (33), 20 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-11-23 04:13:02,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2021-11-23 04:13:02,854 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:13:02,855 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:13:02,856 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [lbs_dev_openErr0ASSERT_VIOLATIONERROR_FUNCTION, lbs_dev_openErr1ASSERT_VIOLATIONERROR_FUNCTION, lbs_mesh_stopErr0ASSERT_VIOLATIONERROR_FUNCTION (and 996 more)] === [2021-11-23 04:13:02,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:13:02,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1734785874, now seen corresponding path program 1 times [2021-11-23 04:13:02,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:13:02,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684428769] [2021-11-23 04:13:02,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:13:02,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms