./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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-drivers-clk1_drivers-net-ethernet-cadence-macb.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 dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 05:06:46,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 05:06:46,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 05:06:46,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 05:06:46,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 05:06:46,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 05:06:46,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 05:06:46,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 05:06:46,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 05:06:46,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 05:06:46,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 05:06:46,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 05:06:46,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 05:06:46,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 05:06:46,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 05:06:46,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 05:06:46,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 05:06:46,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 05:06:46,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 05:06:46,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 05:06:46,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 05:06:46,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 05:06:46,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 05:06:46,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 05:06:46,925 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 05:06:46,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 05:06:46,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 05:06:46,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 05:06:46,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 05:06:46,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 05:06:46,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 05:06:46,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 05:06:46,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 05:06:46,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 05:06:46,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 05:06:46,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 05:06:46,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 05:06:46,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 05:06:46,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 05:06:46,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 05:06:46,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 05:06:46,940 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 05:06:46,960 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 05:06:46,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 05:06:46,961 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 05:06:46,961 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 05:06:46,962 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 05:06:46,962 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 05:06:46,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 05:06:46,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 05:06:46,963 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 05:06:46,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 05:06:46,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 05:06:46,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 05:06:46,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 05:06:46,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 05:06:46,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 05:06:46,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 05:06:46,964 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 05:06:46,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 05:06:46,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 05:06:46,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 05:06:46,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 05:06:46,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 05:06:46,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 05:06:46,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 05:06:46,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 05:06:46,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 05:06:46,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 05:06:46,977 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 05:06:46,977 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 05:06:46,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 05:06:46,977 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 [2021-12-28 05:06:47,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 05:06:47,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 05:06:47,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 05:06:47,276 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 05:06:47,277 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 05:06:47,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2021-12-28 05:06:47,328 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ab5149e1/3062b969d2a3467c8eec27f70ad14556/FLAG674fc1d80 [2021-12-28 05:06:48,014 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 05:06:48,015 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2021-12-28 05:06:48,052 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ab5149e1/3062b969d2a3467c8eec27f70ad14556/FLAG674fc1d80 [2021-12-28 05:06:48,369 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ab5149e1/3062b969d2a3467c8eec27f70ad14556 [2021-12-28 05:06:48,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 05:06:48,372 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 05:06:48,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 05:06:48,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 05:06:48,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 05:06:48,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:06:48" (1/1) ... [2021-12-28 05:06:48,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a1ab66e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:48, skipping insertion in model container [2021-12-28 05:06:48,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:06:48" (1/1) ... [2021-12-28 05:06:48,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 05:06:48,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 05:06:50,660 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-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2021-12-28 05:06:50,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 05:06:50,737 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 05:06:51,168 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-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2021-12-28 05:06:51,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 05:06:51,314 INFO L208 MainTranslator]: Completed translation [2021-12-28 05:06:51,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:51 WrapperNode [2021-12-28 05:06:51,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 05:06:51,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 05:06:51,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 05:06:51,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 05:06:51,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:51" (1/1) ... [2021-12-28 05:06:51,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:51" (1/1) ... [2021-12-28 05:06:51,562 INFO L137 Inliner]: procedures = 426, calls = 2215, calls flagged for inlining = 256, calls inlined = 245, statements flattened = 5984 [2021-12-28 05:06:51,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 05:06:51,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 05:06:51,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 05:06:51,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 05:06:51,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:51" (1/1) ... [2021-12-28 05:06:51,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:51" (1/1) ... [2021-12-28 05:06:51,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:51" (1/1) ... [2021-12-28 05:06:51,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:51" (1/1) ... [2021-12-28 05:06:51,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:51" (1/1) ... [2021-12-28 05:06:51,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:51" (1/1) ... [2021-12-28 05:06:51,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:51" (1/1) ... [2021-12-28 05:06:51,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 05:06:51,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 05:06:51,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 05:06:51,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 05:06:51,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:51" (1/1) ... [2021-12-28 05:06:51,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 05:06:51,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 05:06:51,782 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) [2021-12-28 05:06:51,790 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 [2021-12-28 05:06:51,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 05:06:51,816 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 05:06:51,816 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-28 05:06:51,816 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-28 05:06:51,816 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-28 05:06:51,816 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-28 05:06:51,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 05:06:51,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 05:06:51,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_9_6 [2021-12-28 05:06:51,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_9_6 [2021-12-28 05:06:51,817 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-12-28 05:06:51,817 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-12-28 05:06:51,817 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-28 05:06:51,817 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-28 05:06:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-28 05:06:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-28 05:06:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2021-12-28 05:06:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2021-12-28 05:06:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_regs_len [2021-12-28 05:06:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_regs_len [2021-12-28 05:06:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 05:06:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 05:06:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure macb_probe [2021-12-28 05:06:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_probe [2021-12-28 05:06:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-28 05:06:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-28 05:06:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-28 05:06:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-28 05:06:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-28 05:06:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-28 05:06:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-28 05:06:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-28 05:06:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-12-28 05:06:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-12-28 05:06:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 05:06:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 05:06:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 05:06:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure macb_remove [2021-12-28 05:06:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_remove [2021-12-28 05:06:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-28 05:06:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-28 05:06:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-12-28 05:06:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-12-28 05:06:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-28 05:06:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-28 05:06:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 05:06:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2021-12-28 05:06:51,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2021-12-28 05:06:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 05:06:51,822 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 05:06:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-28 05:06:51,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-28 05:06:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 05:06:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-28 05:06:51,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-28 05:06:51,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 05:06:51,823 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-28 05:06:51,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-28 05:06:51,824 INFO L130 BoogieDeclarations]: Found specification of procedure macb_free_consistent [2021-12-28 05:06:51,824 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_free_consistent [2021-12-28 05:06:51,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 05:06:51,825 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 05:06:51,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-12-28 05:06:51,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-12-28 05:06:51,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-28 05:06:51,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-28 05:06:51,863 INFO L130 BoogieDeclarations]: Found specification of procedure macb_open [2021-12-28 05:06:51,863 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_open [2021-12-28 05:06:51,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-28 05:06:51,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-28 05:06:51,863 INFO L130 BoogieDeclarations]: Found specification of procedure macb_alloc_consistent [2021-12-28 05:06:51,863 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_alloc_consistent [2021-12-28 05:06:51,864 INFO L130 BoogieDeclarations]: Found specification of procedure macb_resume [2021-12-28 05:06:51,864 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_resume [2021-12-28 05:06:51,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 05:06:51,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-28 05:06:51,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-28 05:06:51,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-28 05:06:51,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-28 05:06:51,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-28 05:06:51,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-28 05:06:51,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-12-28 05:06:51,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-12-28 05:06:51,864 INFO L130 BoogieDeclarations]: Found specification of procedure macb_is_gem [2021-12-28 05:06:51,864 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_is_gem [2021-12-28 05:06:51,864 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-28 05:06:51,864 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-28 05:06:51,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 05:06:51,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-28 05:06:51,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-28 05:06:51,865 INFO L130 BoogieDeclarations]: Found specification of procedure macb_rx_ring_wrap [2021-12-28 05:06:51,865 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_rx_ring_wrap [2021-12-28 05:06:51,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 05:06:51,865 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 05:06:51,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 05:06:51,865 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-28 05:06:51,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-28 05:06:51,865 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2021-12-28 05:06:51,865 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2021-12-28 05:06:51,865 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-28 05:06:51,865 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-28 05:06:51,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-28 05:06:51,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-28 05:06:51,865 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-28 05:06:51,866 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-28 05:06:51,866 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2021-12-28 05:06:51,866 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2021-12-28 05:06:51,866 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-12-28 05:06:51,866 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-12-28 05:06:51,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 05:06:51,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 05:06:51,866 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-28 05:06:51,866 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-28 05:06:51,866 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2021-12-28 05:06:51,866 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2021-12-28 05:06:51,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 05:06:51,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 05:06:51,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 05:06:51,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 05:06:51,866 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2021-12-28 05:06:51,867 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2021-12-28 05:06:51,867 INFO L130 BoogieDeclarations]: Found specification of procedure phy_find_first [2021-12-28 05:06:51,867 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_find_first [2021-12-28 05:06:51,867 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-28 05:06:51,867 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-28 05:06:51,867 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_ring_wrap [2021-12-28 05:06:51,867 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_ring_wrap [2021-12-28 05:06:51,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-28 05:06:51,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-28 05:06:51,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_17 [2021-12-28 05:06:51,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_17 [2021-12-28 05:06:51,867 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2021-12-28 05:06:51,867 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2021-12-28 05:06:51,867 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-28 05:06:51,867 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-28 05:06:51,867 INFO L130 BoogieDeclarations]: Found specification of procedure macb_handle_link_change [2021-12-28 05:06:51,868 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_handle_link_change [2021-12-28 05:06:51,868 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2021-12-28 05:06:51,868 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2021-12-28 05:06:51,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_14 [2021-12-28 05:06:51,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_14 [2021-12-28 05:06:51,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_16 [2021-12-28 05:06:51,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_16 [2021-12-28 05:06:51,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_15 [2021-12-28 05:06:51,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_15 [2021-12-28 05:06:51,868 INFO L130 BoogieDeclarations]: Found specification of procedure macb_close [2021-12-28 05:06:51,868 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_close [2021-12-28 05:06:51,868 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mdc_clk_div [2021-12-28 05:06:51,868 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mdc_clk_div [2021-12-28 05:06:51,868 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-28 05:06:51,868 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-28 05:06:51,868 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-28 05:06:51,869 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-28 05:06:51,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_19 [2021-12-28 05:06:51,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_19 [2021-12-28 05:06:51,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 05:06:51,869 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2021-12-28 05:06:51,869 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2021-12-28 05:06:51,869 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-12-28 05:06:51,869 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-12-28 05:06:51,869 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-28 05:06:51,869 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-28 05:06:51,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_21 [2021-12-28 05:06:51,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_21 [2021-12-28 05:06:51,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 05:06:51,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_20 [2021-12-28 05:06:51,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_20 [2021-12-28 05:06:51,869 INFO L130 BoogieDeclarations]: Found specification of procedure clk_get_rate [2021-12-28 05:06:51,869 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_get_rate [2021-12-28 05:06:51,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 05:06:51,870 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2021-12-28 05:06:51,870 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2021-12-28 05:06:51,870 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_desc [2021-12-28 05:06:51,870 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_desc [2021-12-28 05:06:51,870 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-28 05:06:51,870 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-28 05:06:51,870 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-28 05:06:51,870 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-28 05:06:51,870 INFO L130 BoogieDeclarations]: Found specification of procedure macb_reset_hw [2021-12-28 05:06:51,870 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_reset_hw [2021-12-28 05:06:51,870 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-28 05:06:51,870 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-28 05:06:51,870 INFO L130 BoogieDeclarations]: Found specification of procedure macb_suspend [2021-12-28 05:06:51,870 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_suspend [2021-12-28 05:06:51,870 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2021-12-28 05:06:51,871 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2021-12-28 05:06:51,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-28 05:06:51,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-28 05:06:51,871 INFO L130 BoogieDeclarations]: Found specification of procedure macb_dbw [2021-12-28 05:06:51,871 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_dbw [2021-12-28 05:06:51,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-28 05:06:51,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-28 05:06:51,874 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-28 05:06:51,874 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-28 05:06:51,874 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-28 05:06:51,874 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-28 05:06:51,875 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-28 05:06:51,875 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-28 05:06:51,875 INFO L130 BoogieDeclarations]: Found specification of procedure devm_pinctrl_put [2021-12-28 05:06:51,875 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_pinctrl_put [2021-12-28 05:06:51,875 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-28 05:06:51,875 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-28 05:06:51,875 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 05:06:51,875 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 05:06:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 05:06:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 05:06:51,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 05:06:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure gem_rx_refill [2021-12-28 05:06:51,876 INFO L138 BoogieDeclarations]: Found implementation of procedure gem_rx_refill [2021-12-28 05:06:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-28 05:06:51,876 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-28 05:06:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_dma [2021-12-28 05:06:51,877 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_dma [2021-12-28 05:06:51,877 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_skb [2021-12-28 05:06:51,877 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_skb [2021-12-28 05:06:51,877 INFO L130 BoogieDeclarations]: Found specification of procedure macb_interrupt [2021-12-28 05:06:51,877 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_interrupt [2021-12-28 05:06:51,877 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-28 05:06:51,878 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-28 05:06:51,878 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2021-12-28 05:06:51,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2021-12-28 05:06:51,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-28 05:06:51,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-28 05:06:51,878 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2021-12-28 05:06:51,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2021-12-28 05:06:51,879 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-28 05:06:51,879 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-28 05:06:51,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 05:06:51,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-28 05:06:51,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-28 05:06:51,880 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-28 05:06:51,880 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-28 05:06:52,618 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 05:06:52,620 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 05:06:52,698 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 05:06:55,823 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-28 05:06:55,868 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 05:06:55,882 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 05:06:55,882 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 05:06:55,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:06:55 BoogieIcfgContainer [2021-12-28 05:06:55,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 05:06:55,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 05:06:55,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 05:06:55,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 05:06:55,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:06:48" (1/3) ... [2021-12-28 05:06:55,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6df8b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:06:55, skipping insertion in model container [2021-12-28 05:06:55,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:51" (2/3) ... [2021-12-28 05:06:55,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6df8b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:06:55, skipping insertion in model container [2021-12-28 05:06:55,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:06:55" (3/3) ... [2021-12-28 05:06:55,890 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2021-12-28 05:06:55,893 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 05:06:55,893 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 05:06:55,933 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 05:06:55,937 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 [2021-12-28 05:06:55,938 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 05:06:55,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 2137 states, 1507 states have (on average 1.2647644326476444) internal successors, (1906), 1525 states have internal predecessors, (1906), 522 states have call successors, (522), 108 states have call predecessors, (522), 107 states have return successors, (515), 510 states have call predecessors, (515), 515 states have call successors, (515) [2021-12-28 05:06:55,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-12-28 05:06:55,992 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:06:55,993 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:06:55,993 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 05:06:55,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:06:55,997 INFO L85 PathProgramCache]: Analyzing trace with hash 950140754, now seen corresponding path program 1 times [2021-12-28 05:06:56,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:06:56,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984986611] [2021-12-28 05:06:56,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:06:56,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:06:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 05:06:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:06:56,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 05:06:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:06:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 05:06:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:06:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:06:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:06:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 05:06:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:06:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 05:06:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:06:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 05:06:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:06:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 05:06:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:06:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 05:06:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:06:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 05:06:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:06:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 05:06:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:06:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 05:06:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-28 05:06:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:06:56,771 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-12-28 05:06:56,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:06:56,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984986611] [2021-12-28 05:06:56,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984986611] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:06:56,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:06:56,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 05:06:56,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718399847] [2021-12-28 05:06:56,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:06:56,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 05:06:56,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:06:56,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 05:06:56,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 05:06:56,809 INFO L87 Difference]: Start difference. First operand has 2137 states, 1507 states have (on average 1.2647644326476444) internal successors, (1906), 1525 states have internal predecessors, (1906), 522 states have call successors, (522), 108 states have call predecessors, (522), 107 states have return successors, (515), 510 states have call predecessors, (515), 515 states have call successors, (515) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-28 05:07:00,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:07:00,820 INFO L93 Difference]: Finished difference Result 6503 states and 9156 transitions. [2021-12-28 05:07:00,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 05:07:00,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 145 [2021-12-28 05:07:00,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:07:00,857 INFO L225 Difference]: With dead ends: 6503 [2021-12-28 05:07:00,857 INFO L226 Difference]: Without dead ends: 4381 [2021-12-28 05:07:00,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:07:00,875 INFO L933 BasicCegarLoop]: 3085 mSDtfsCounter, 4091 mSDsluCounter, 2827 mSDsCounter, 0 mSdLazyCounter, 2341 mSolverCounterSat, 1703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4547 SdHoareTripleChecker+Valid, 5912 SdHoareTripleChecker+Invalid, 4044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1703 IncrementalHoareTripleChecker+Valid, 2341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-28 05:07:00,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4547 Valid, 5912 Invalid, 4044 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1703 Valid, 2341 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-12-28 05:07:00,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4381 states. [2021-12-28 05:07:01,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4381 to 4163. [2021-12-28 05:07:01,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4163 states, 2949 states have (on average 1.2597490674805019) internal successors, (3715), 2985 states have internal predecessors, (3715), 1002 states have call successors, (1002), 212 states have call predecessors, (1002), 211 states have return successors, (999), 989 states have call predecessors, (999), 999 states have call successors, (999) [2021-12-28 05:07:01,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4163 states to 4163 states and 5716 transitions. [2021-12-28 05:07:01,091 INFO L78 Accepts]: Start accepts. Automaton has 4163 states and 5716 transitions. Word has length 145 [2021-12-28 05:07:01,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:07:01,092 INFO L470 AbstractCegarLoop]: Abstraction has 4163 states and 5716 transitions. [2021-12-28 05:07:01,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-28 05:07:01,093 INFO L276 IsEmpty]: Start isEmpty. Operand 4163 states and 5716 transitions. [2021-12-28 05:07:01,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-12-28 05:07:01,103 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:07:01,104 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:07:01,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 05:07:01,104 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 05:07:01,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:07:01,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1392757034, now seen corresponding path program 1 times [2021-12-28 05:07:01,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:07:01,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080507752] [2021-12-28 05:07:01,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:07:01,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:07:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 05:07:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:01,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 05:07:01,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 05:07:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:07:01,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 05:07:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 05:07:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 05:07:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 05:07:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 05:07:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 05:07:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 05:07:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 05:07:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-28 05:07:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 05:07:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-28 05:07:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-28 05:07:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-28 05:07:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-28 05:07:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-28 05:07:01,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:01,613 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2021-12-28 05:07:01,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:07:01,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080507752] [2021-12-28 05:07:01,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080507752] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:07:01,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:07:01,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 05:07:01,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749175202] [2021-12-28 05:07:01,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:07:01,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 05:07:01,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:07:01,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 05:07:01,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 05:07:01,617 INFO L87 Difference]: Start difference. First operand 4163 states and 5716 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-28 05:07:05,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:07:05,148 INFO L93 Difference]: Finished difference Result 8647 states and 11967 transitions. [2021-12-28 05:07:05,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 05:07:05,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 197 [2021-12-28 05:07:05,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:07:05,189 INFO L225 Difference]: With dead ends: 8647 [2021-12-28 05:07:05,189 INFO L226 Difference]: Without dead ends: 6542 [2021-12-28 05:07:05,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:07:05,203 INFO L933 BasicCegarLoop]: 5333 mSDtfsCounter, 3176 mSDsluCounter, 3794 mSDsCounter, 0 mSdLazyCounter, 2373 mSolverCounterSat, 1212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3625 SdHoareTripleChecker+Valid, 9127 SdHoareTripleChecker+Invalid, 3585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1212 IncrementalHoareTripleChecker+Valid, 2373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-12-28 05:07:05,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3625 Valid, 9127 Invalid, 3585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1212 Valid, 2373 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-12-28 05:07:05,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6542 states. [2021-12-28 05:07:05,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6542 to 6205. [2021-12-28 05:07:05,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6205 states, 4399 states have (on average 1.2605137531257105) internal successors, (5545), 4452 states have internal predecessors, (5545), 1489 states have call successors, (1489), 317 states have call predecessors, (1489), 316 states have return successors, (1486), 1471 states have call predecessors, (1486), 1486 states have call successors, (1486) [2021-12-28 05:07:05,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6205 states to 6205 states and 8520 transitions. [2021-12-28 05:07:05,422 INFO L78 Accepts]: Start accepts. Automaton has 6205 states and 8520 transitions. Word has length 197 [2021-12-28 05:07:05,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:07:05,424 INFO L470 AbstractCegarLoop]: Abstraction has 6205 states and 8520 transitions. [2021-12-28 05:07:05,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-28 05:07:05,425 INFO L276 IsEmpty]: Start isEmpty. Operand 6205 states and 8520 transitions. [2021-12-28 05:07:05,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-12-28 05:07:05,433 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:07:05,434 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:07:05,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 05:07:05,434 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 05:07:05,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:07:05,434 INFO L85 PathProgramCache]: Analyzing trace with hash -970055208, now seen corresponding path program 1 times [2021-12-28 05:07:05,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:07:05,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903122987] [2021-12-28 05:07:05,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:07:05,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:07:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 05:07:05,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:05,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 05:07:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 05:07:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:07:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 05:07:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 05:07:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 05:07:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 05:07:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 05:07:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 05:07:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 05:07:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 05:07:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-28 05:07:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 05:07:05,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-28 05:07:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-28 05:07:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-28 05:07:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-28 05:07:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-28 05:07:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:05,994 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2021-12-28 05:07:05,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:07:05,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903122987] [2021-12-28 05:07:05,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903122987] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:07:05,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:07:05,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 05:07:05,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63326770] [2021-12-28 05:07:05,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:07:05,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 05:07:05,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:07:05,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 05:07:05,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 05:07:05,997 INFO L87 Difference]: Start difference. First operand 6205 states and 8520 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-28 05:07:08,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:07:08,970 INFO L93 Difference]: Finished difference Result 6538 states and 9076 transitions. [2021-12-28 05:07:08,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 05:07:08,971 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 197 [2021-12-28 05:07:08,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:07:09,008 INFO L225 Difference]: With dead ends: 6538 [2021-12-28 05:07:09,008 INFO L226 Difference]: Without dead ends: 6536 [2021-12-28 05:07:09,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-28 05:07:09,017 INFO L933 BasicCegarLoop]: 2708 mSDtfsCounter, 3215 mSDsluCounter, 4527 mSDsCounter, 0 mSdLazyCounter, 3030 mSolverCounterSat, 1199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3466 SdHoareTripleChecker+Valid, 7235 SdHoareTripleChecker+Invalid, 4229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1199 IncrementalHoareTripleChecker+Valid, 3030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-28 05:07:09,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3466 Valid, 7235 Invalid, 4229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1199 Valid, 3030 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-28 05:07:09,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6536 states. [2021-12-28 05:07:09,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6536 to 6209. [2021-12-28 05:07:09,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6209 states, 4402 states have (on average 1.2603362108132667) internal successors, (5548), 4455 states have internal predecessors, (5548), 1489 states have call successors, (1489), 318 states have call predecessors, (1489), 317 states have return successors, (1486), 1471 states have call predecessors, (1486), 1486 states have call successors, (1486) [2021-12-28 05:07:09,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6209 states to 6209 states and 8523 transitions. [2021-12-28 05:07:09,261 INFO L78 Accepts]: Start accepts. Automaton has 6209 states and 8523 transitions. Word has length 197 [2021-12-28 05:07:09,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:07:09,262 INFO L470 AbstractCegarLoop]: Abstraction has 6209 states and 8523 transitions. [2021-12-28 05:07:09,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-28 05:07:09,263 INFO L276 IsEmpty]: Start isEmpty. Operand 6209 states and 8523 transitions. [2021-12-28 05:07:09,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-12-28 05:07:09,270 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:07:09,271 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:07:09,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 05:07:09,271 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 05:07:09,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:07:09,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1697106320, now seen corresponding path program 1 times [2021-12-28 05:07:09,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:07:09,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187792886] [2021-12-28 05:07:09,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:07:09,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:07:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 05:07:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 05:07:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 05:07:09,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:07:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 05:07:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 05:07:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 05:07:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 05:07:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 05:07:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:09,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 05:07:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 05:07:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 05:07:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-28 05:07:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 05:07:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-28 05:07:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-28 05:07:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:09,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-28 05:07:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-28 05:07:09,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-28 05:07:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-28 05:07:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:09,687 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2021-12-28 05:07:09,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:07:09,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187792886] [2021-12-28 05:07:09,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187792886] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:07:09,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:07:09,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 05:07:09,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385923416] [2021-12-28 05:07:09,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:07:09,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 05:07:09,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:07:09,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 05:07:09,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 05:07:09,690 INFO L87 Difference]: Start difference. First operand 6209 states and 8523 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 05:07:15,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:07:15,366 INFO L93 Difference]: Finished difference Result 12946 states and 18248 transitions. [2021-12-28 05:07:15,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 05:07:15,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 202 [2021-12-28 05:07:15,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:07:15,445 INFO L225 Difference]: With dead ends: 12946 [2021-12-28 05:07:15,445 INFO L226 Difference]: Without dead ends: 12944 [2021-12-28 05:07:15,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-28 05:07:15,456 INFO L933 BasicCegarLoop]: 3308 mSDtfsCounter, 4053 mSDsluCounter, 6965 mSDsCounter, 0 mSdLazyCounter, 5824 mSolverCounterSat, 1718 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4489 SdHoareTripleChecker+Valid, 10273 SdHoareTripleChecker+Invalid, 7542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1718 IncrementalHoareTripleChecker+Valid, 5824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-12-28 05:07:15,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4489 Valid, 10273 Invalid, 7542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1718 Valid, 5824 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-12-28 05:07:15,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12944 states. [2021-12-28 05:07:15,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12944 to 12276. [2021-12-28 05:07:15,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12276 states, 8706 states have (on average 1.261199172984149) internal successors, (10980), 8833 states have internal predecessors, (10980), 2928 states have call successors, (2928), 631 states have call predecessors, (2928), 641 states have return successors, (3114), 2883 states have call predecessors, (3114), 2922 states have call successors, (3114) [2021-12-28 05:07:15,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12276 states to 12276 states and 17022 transitions. [2021-12-28 05:07:15,879 INFO L78 Accepts]: Start accepts. Automaton has 12276 states and 17022 transitions. Word has length 202 [2021-12-28 05:07:15,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:07:15,879 INFO L470 AbstractCegarLoop]: Abstraction has 12276 states and 17022 transitions. [2021-12-28 05:07:15,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 05:07:15,880 INFO L276 IsEmpty]: Start isEmpty. Operand 12276 states and 17022 transitions. [2021-12-28 05:07:15,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-12-28 05:07:15,889 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:07:15,890 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:07:15,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 05:07:15,890 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 05:07:15,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:07:15,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1155029144, now seen corresponding path program 1 times [2021-12-28 05:07:15,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:07:15,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027134881] [2021-12-28 05:07:15,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:07:15,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:07:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 05:07:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:16,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 05:07:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 05:07:16,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:07:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 05:07:16,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 05:07:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 05:07:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 05:07:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 05:07:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 05:07:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 05:07:16,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 05:07:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-28 05:07:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 05:07:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-28 05:07:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-28 05:07:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-28 05:07:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-28 05:07:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-28 05:07:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-28 05:07:16,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-28 05:07:16,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:16,288 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2021-12-28 05:07:16,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:07:16,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027134881] [2021-12-28 05:07:16,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027134881] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:07:16,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:07:16,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 05:07:16,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173122090] [2021-12-28 05:07:16,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:07:16,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 05:07:16,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:07:16,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 05:07:16,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 05:07:16,290 INFO L87 Difference]: Start difference. First operand 12276 states and 17022 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-28 05:07:21,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:07:21,886 INFO L93 Difference]: Finished difference Result 25624 states and 36849 transitions. [2021-12-28 05:07:21,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 05:07:21,887 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 207 [2021-12-28 05:07:21,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:07:22,006 INFO L225 Difference]: With dead ends: 25624 [2021-12-28 05:07:22,007 INFO L226 Difference]: Without dead ends: 25620 [2021-12-28 05:07:22,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-28 05:07:22,024 INFO L933 BasicCegarLoop]: 3319 mSDtfsCounter, 4046 mSDsluCounter, 6960 mSDsCounter, 0 mSdLazyCounter, 5854 mSolverCounterSat, 1717 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4484 SdHoareTripleChecker+Valid, 10279 SdHoareTripleChecker+Invalid, 7571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1717 IncrementalHoareTripleChecker+Valid, 5854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-12-28 05:07:22,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4484 Valid, 10279 Invalid, 7571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1717 Valid, 5854 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-12-28 05:07:22,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25620 states. [2021-12-28 05:07:22,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25620 to 24559. [2021-12-28 05:07:22,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24559 states, 17421 states have (on average 1.2618678606279776) internal successors, (21983), 17701 states have internal predecessors, (21983), 5842 states have call successors, (5842), 1252 states have call predecessors, (5842), 1295 states have return successors, (6910), 5755 states have call predecessors, (6910), 5830 states have call successors, (6910) [2021-12-28 05:07:22,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24559 states to 24559 states and 34735 transitions. [2021-12-28 05:07:22,918 INFO L78 Accepts]: Start accepts. Automaton has 24559 states and 34735 transitions. Word has length 207 [2021-12-28 05:07:22,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:07:22,920 INFO L470 AbstractCegarLoop]: Abstraction has 24559 states and 34735 transitions. [2021-12-28 05:07:22,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-28 05:07:22,920 INFO L276 IsEmpty]: Start isEmpty. Operand 24559 states and 34735 transitions. [2021-12-28 05:07:22,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-28 05:07:22,932 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:07:22,932 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:07:22,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 05:07:22,932 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 05:07:22,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:07:22,933 INFO L85 PathProgramCache]: Analyzing trace with hash 603744048, now seen corresponding path program 1 times [2021-12-28 05:07:22,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:07:22,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870936807] [2021-12-28 05:07:22,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:07:22,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:07:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 05:07:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 05:07:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 05:07:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:07:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 05:07:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 05:07:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 05:07:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 05:07:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 05:07:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 05:07:23,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 05:07:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 05:07:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-28 05:07:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 05:07:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-28 05:07:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-28 05:07:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-28 05:07:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-28 05:07:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-28 05:07:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-28 05:07:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-28 05:07:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-28 05:07:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:23,311 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2021-12-28 05:07:23,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:07:23,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870936807] [2021-12-28 05:07:23,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870936807] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:07:23,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:07:23,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 05:07:23,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273758873] [2021-12-28 05:07:23,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:07:23,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 05:07:23,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:07:23,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 05:07:23,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 05:07:23,314 INFO L87 Difference]: Start difference. First operand 24559 states and 34735 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-28 05:07:29,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:07:29,241 INFO L93 Difference]: Finished difference Result 50983 states and 75564 transitions. [2021-12-28 05:07:29,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 05:07:29,243 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 212 [2021-12-28 05:07:29,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:07:29,536 INFO L225 Difference]: With dead ends: 50983 [2021-12-28 05:07:29,537 INFO L226 Difference]: Without dead ends: 50922 [2021-12-28 05:07:29,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-28 05:07:29,581 INFO L933 BasicCegarLoop]: 3093 mSDtfsCounter, 4118 mSDsluCounter, 6565 mSDsCounter, 0 mSdLazyCounter, 5729 mSolverCounterSat, 1761 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4559 SdHoareTripleChecker+Valid, 9658 SdHoareTripleChecker+Invalid, 7490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1761 IncrementalHoareTripleChecker+Valid, 5729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-12-28 05:07:29,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4559 Valid, 9658 Invalid, 7490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1761 Valid, 5729 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-12-28 05:07:29,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50922 states. [2021-12-28 05:07:31,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50922 to 49254. [2021-12-28 05:07:31,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49254 states, 34950 states have (on average 1.261859799713877) internal successors, (44102), 35518 states have internal predecessors, (44102), 11692 states have call successors, (11692), 2493 states have call predecessors, (11692), 2611 states have return successors, (15838), 11548 states have call predecessors, (15838), 11671 states have call successors, (15838) [2021-12-28 05:07:31,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49254 states to 49254 states and 71632 transitions. [2021-12-28 05:07:31,885 INFO L78 Accepts]: Start accepts. Automaton has 49254 states and 71632 transitions. Word has length 212 [2021-12-28 05:07:31,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:07:31,886 INFO L470 AbstractCegarLoop]: Abstraction has 49254 states and 71632 transitions. [2021-12-28 05:07:31,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-28 05:07:31,886 INFO L276 IsEmpty]: Start isEmpty. Operand 49254 states and 71632 transitions. [2021-12-28 05:07:31,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-12-28 05:07:31,970 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:07:31,971 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 11, 11, 11, 11, 11, 11, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:07:31,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 05:07:31,971 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 05:07:31,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:07:31,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1468236600, now seen corresponding path program 1 times [2021-12-28 05:07:31,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:07:31,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865662715] [2021-12-28 05:07:31,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:07:31,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:07:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 05:07:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 05:07:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 05:07:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:07:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 05:07:32,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 05:07:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 05:07:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 05:07:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 05:07:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 05:07:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 05:07:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 05:07:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-28 05:07:32,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 05:07:32,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-28 05:07:32,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-28 05:07:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-28 05:07:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-28 05:07:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-28 05:07:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-28 05:07:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-28 05:07:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-28 05:07:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 05:07:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-28 05:07:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-28 05:07:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-28 05:07:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,649 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 816 trivial. 0 not checked. [2021-12-28 05:07:32,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:07:32,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865662715] [2021-12-28 05:07:32,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865662715] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:07:32,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:07:32,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 05:07:32,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801918265] [2021-12-28 05:07:32,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:07:32,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 05:07:32,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:07:32,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 05:07:32,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-28 05:07:32,652 INFO L87 Difference]: Start difference. First operand 49254 states and 71632 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31)