/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/ldv-commit-tester/m0_sound-core-oss-snd-mixer-oss-ko--143_7a--506218e.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 07:45:10,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 07:45:10,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 07:45:10,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 07:45:10,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 07:45:10,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 07:45:10,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 07:45:10,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 07:45:10,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 07:45:10,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 07:45:10,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 07:45:10,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 07:45:10,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 07:45:10,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 07:45:10,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 07:45:10,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 07:45:10,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 07:45:10,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 07:45:10,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 07:45:10,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 07:45:10,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 07:45:10,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 07:45:10,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 07:45:10,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 07:45:10,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 07:45:10,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 07:45:10,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 07:45:10,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 07:45:10,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 07:45:10,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 07:45:10,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 07:45:10,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 07:45:10,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 07:45:10,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 07:45:10,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 07:45:10,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 07:45:10,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 07:45:10,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 07:45:10,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 07:45:10,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 07:45:10,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 07:45:10,880 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 07:45:10,908 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 07:45:10,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 07:45:10,909 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 07:45:10,909 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 07:45:10,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 07:45:10,910 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 07:45:10,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 07:45:10,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 07:45:10,911 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 07:45:10,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 07:45:10,912 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 07:45:10,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 07:45:10,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 07:45:10,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 07:45:10,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 07:45:10,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 07:45:10,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 07:45:10,913 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 07:45:10,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 07:45:10,913 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 07:45:10,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 07:45:10,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 07:45:10,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 07:45:10,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 07:45:10,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 07:45:10,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 07:45:10,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 07:45:10,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 07:45:10,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 07:45:10,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 07:45:10,914 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 07:45:10,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 07:45:10,915 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 07:45:10,915 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 07:45:10,915 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 07:45:10,915 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 07:45:11,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 07:45:11,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 07:45:11,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 07:45:11,134 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 07:45:11,134 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 07:45:11,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/m0_sound-core-oss-snd-mixer-oss-ko--143_7a--506218e.i [2023-04-02 07:45:12,403 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 07:45:12,839 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 07:45:12,840 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_sound-core-oss-snd-mixer-oss-ko--143_7a--506218e.i [2023-04-02 07:45:12,876 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3da26e3d/9c3427ce7eb844919cf6050bd028ece7/FLAGa645c1c16 [2023-04-02 07:45:12,893 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3da26e3d/9c3427ce7eb844919cf6050bd028ece7 [2023-04-02 07:45:12,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 07:45:12,897 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 07:45:12,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 07:45:12,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 07:45:12,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 07:45:12,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 07:45:12" (1/1) ... [2023-04-02 07:45:12,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ee8886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:12, skipping insertion in model container [2023-04-02 07:45:12,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 07:45:12" (1/1) ... [2023-04-02 07:45:12,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 07:45:13,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 07:45:14,224 WARN L247 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-commit-tester/m0_sound-core-oss-snd-mixer-oss-ko--143_7a--506218e.i[176586,176599] [2023-04-02 07:45:14,272 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 07:45:14,296 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 07:45:14,571 WARN L247 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-commit-tester/m0_sound-core-oss-snd-mixer-oss-ko--143_7a--506218e.i[176586,176599] [2023-04-02 07:45:14,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 07:45:14,626 WARN L667 CHandler]: The function __bad_size_call_parameter is called, but not defined or handled by StandardFunctionHandler. [2023-04-02 07:45:14,627 WARN L667 CHandler]: The function kmem_cache_alloc_notrace is called, but not defined or handled by StandardFunctionHandler. [2023-04-02 07:45:14,627 WARN L667 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-02 07:45:14,627 WARN L667 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-04-02 07:45:14,633 INFO L208 MainTranslator]: Completed translation [2023-04-02 07:45:14,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:14 WrapperNode [2023-04-02 07:45:14,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 07:45:14,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 07:45:14,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 07:45:14,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 07:45:14,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:14" (1/1) ... [2023-04-02 07:45:14,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:14" (1/1) ... [2023-04-02 07:45:14,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:14" (1/1) ... [2023-04-02 07:45:14,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:14" (1/1) ... [2023-04-02 07:45:14,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:14" (1/1) ... [2023-04-02 07:45:14,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:14" (1/1) ... [2023-04-02 07:45:14,855 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:14" (1/1) ... [2023-04-02 07:45:14,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:14" (1/1) ... [2023-04-02 07:45:14,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 07:45:14,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 07:45:14,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 07:45:14,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 07:45:14,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:14" (1/1) ... [2023-04-02 07:45:14,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 07:45:14,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:45:14,953 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) [2023-04-02 07:45:14,976 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 [2023-04-02 07:45:14,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 07:45:14,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 07:45:14,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2023-04-02 07:45:14,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2023-04-02 07:45:14,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-02 07:45:14,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-04-02 07:45:14,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-04-02 07:45:14,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-04-02 07:45:14,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-04-02 07:45:14,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2023-04-02 07:45:14,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-04-02 07:45:14,994 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 07:45:14,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ffz [2023-04-02 07:45:14,994 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2023-04-02 07:45:14,994 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2023-04-02 07:45:14,994 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2023-04-02 07:45:14,995 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2023-04-02 07:45:14,995 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2023-04-02 07:45:14,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2023-04-02 07:45:14,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2023-04-02 07:45:14,995 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 07:45:14,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-02 07:45:14,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-02 07:45:14,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-02 07:45:14,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2023-04-02 07:45:14,996 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-02 07:45:14,996 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2023-04-02 07:45:14,996 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-02 07:45:14,996 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_module_get [2023-04-02 07:45:14,996 INFO L138 BoogieDeclarations]: Found implementation of procedure module_is_live [2023-04-02 07:45:14,996 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2023-04-02 07:45:14,996 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-04-02 07:45:14,996 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-04-02 07:45:14,996 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_open [2023-04-02 07:45:14,997 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_release [2023-04-02 07:45:14,997 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_info [2023-04-02 07:45:14,997 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_info_obsolete [2023-04-02 07:45:14,997 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_caps [2023-04-02 07:45:14,997 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_devmask [2023-04-02 07:45:14,998 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_stereodevs [2023-04-02 07:45:14,998 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_recmask [2023-04-02 07:45:14,998 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_get_recsrc [2023-04-02 07:45:14,998 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_set_recsrc [2023-04-02 07:45:14,998 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_get_volume [2023-04-02 07:45:14,998 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_set_volume [2023-04-02 07:45:14,999 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_ioctl1 [2023-04-02 07:45:14,999 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_ioctl [2023-04-02 07:45:14,999 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_ioctl_card [2023-04-02 07:45:14,999 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_conv [2023-04-02 07:45:14,999 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_conv1 [2023-04-02 07:45:15,000 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_conv2 [2023-04-02 07:45:15,000 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_test_id [2023-04-02 07:45:15,000 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_get_volume1_vol [2023-04-02 07:45:15,001 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_get_volume1_sw [2023-04-02 07:45:15,001 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_get_volume1 [2023-04-02 07:45:15,001 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_put_volume1_vol [2023-04-02 07:45:15,001 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_put_volume1_sw [2023-04-02 07:45:15,001 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_put_volume1 [2023-04-02 07:45:15,001 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_get_recsrc1_sw [2023-04-02 07:45:15,002 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_get_recsrc1_route [2023-04-02 07:45:15,002 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_put_recsrc1_sw [2023-04-02 07:45:15,002 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_put_recsrc1_route [2023-04-02 07:45:15,002 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_get_recsrc2 [2023-04-02 07:45:15,002 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_put_recsrc2 [2023-04-02 07:45:15,002 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_build_test [2023-04-02 07:45:15,002 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_slot_free [2023-04-02 07:45:15,002 INFO L138 BoogieDeclarations]: Found implementation of procedure mixer_slot_clear [2023-04-02 07:45:15,002 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_build_test_all [2023-04-02 07:45:15,003 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_build_input [2023-04-02 07:45:15,003 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_proc_read [2023-04-02 07:45:15,003 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_proc_write [2023-04-02 07:45:15,003 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_proc_init [2023-04-02 07:45:15,003 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_proc_done [2023-04-02 07:45:15,003 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_build [2023-04-02 07:45:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_free1 [2023-04-02 07:45:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_notify_handler [2023-04-02 07:45:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure alsa_mixer_oss_init [2023-04-02 07:45:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure alsa_mixer_oss_exit [2023-04-02 07:45:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 07:45:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_down_read_1 [2023-04-02 07:45:15,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_2 [2023-04-02 07:45:15,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_3 [2023-04-02 07:45:15,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_down_read_4 [2023-04-02 07:45:15,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_5 [2023-04-02 07:45:15,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_6 [2023-04-02 07:45:15,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_down_read_7 [2023-04-02 07:45:15,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_8 [2023-04-02 07:45:15,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_9 [2023-04-02 07:45:15,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_down_read_10 [2023-04-02 07:45:15,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_11 [2023-04-02 07:45:15,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_12 [2023-04-02 07:45:15,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_down_read_13 [2023-04-02 07:45:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_14 [2023-04-02 07:45:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_down_read_15 [2023-04-02 07:45:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_16 [2023-04-02 07:45:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_down_read_17 [2023-04-02 07:45:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_18 [2023-04-02 07:45:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_19 [2023-04-02 07:45:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_20 [2023-04-02 07:45:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_21 [2023-04-02 07:45:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_down_read_22 [2023-04-02 07:45:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_23 [2023-04-02 07:45:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_24 [2023-04-02 07:45:15,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_25 [2023-04-02 07:45:15,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_26 [2023-04-02 07:45:15,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-02 07:45:15,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-02 07:45:15,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_down_read_nested_controls_rwsem_of_snd_card [2023-04-02 07:45:15,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_down_write_nested_controls_rwsem_of_snd_card [2023-04-02 07:45:15,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_downgrade_write_controls_rwsem_of_snd_card [2023-04-02 07:45:15,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_write_controls_rwsem_of_snd_card [2023-04-02 07:45:15,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_controls_rwsem_of_snd_card [2023-04-02 07:45:15,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_down_write_trylock_controls_rwsem_of_snd_card [2023-04-02 07:45:15,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_down_read_trylock_controls_rwsem_of_snd_card [2023-04-02 07:45:15,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_down_read_controls_rwsem_of_snd_card [2023-04-02 07:45:15,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_down_write_controls_rwsem_of_snd_card [2023-04-02 07:45:15,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rwsem_is_locked_controls_rwsem_of_snd_card [2023-04-02 07:45:15,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-02 07:45:15,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-02 07:45:15,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2023-04-02 07:45:15,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-02 07:45:15,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __snd_printk [2023-04-02 07:45:15,011 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-04-02 07:45:15,012 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-04-02 07:45:15,012 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2023-04-02 07:45:15,015 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrdup [2023-04-02 07:45:15,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-04-02 07:45:15,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-04-02 07:45:15,021 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2023-04-02 07:45:15,021 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-04-02 07:45:15,021 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-04-02 07:45:15,021 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-04-02 07:45:15,021 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-02 07:45:15,021 INFO L138 BoogieDeclarations]: Found implementation of procedure nonseekable_open [2023-04-02 07:45:15,021 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2023-04-02 07:45:15,021 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_file_add [2023-04-02 07:45:15,021 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_file_remove [2023-04-02 07:45:15,021 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ctl_find_id [2023-04-02 07:45:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ctl_find_numid [2023-04-02 07:45:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ctl_notify [2023-04-02 07:45:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_info_create_card_entry [2023-04-02 07:45:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_info_free_entry [2023-04-02 07:45:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_info_get_line [2023-04-02 07:45:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_info_get_str [2023-04-02 07:45:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_info_register [2023-04-02 07:45:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_iprintf [2023-04-02 07:45:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_lookup_oss_minor_data [2023-04-02 07:45:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_oss_info_register [2023-04-02 07:45:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_register_oss_device [2023-04-02 07:45:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_unregister_oss_device [2023-04-02 07:45:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-04-02 07:45:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2023-04-02 07:45:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2023-04-02 07:45:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-02 07:45:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-02 07:45:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-04-02 07:45:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 07:45:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 07:45:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-02 07:45:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-02 07:45:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 07:45:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 07:45:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-02 07:45:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure ffz [2023-04-02 07:45:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2023-04-02 07:45:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-04-02 07:45:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2023-04-02 07:45:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-04-02 07:45:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-02 07:45:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2023-04-02 07:45:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2023-04-02 07:45:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-04-02 07:45:15,025 INFO L130 BoogieDeclarations]: Found specification of procedure kstrdup [2023-04-02 07:45:15,025 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-04-02 07:45:15,025 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2023-04-02 07:45:15,025 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2023-04-02 07:45:15,025 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2023-04-02 07:45:15,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_down_read_1 [2023-04-02 07:45:15,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_down_read_4 [2023-04-02 07:45:15,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_down_read_7 [2023-04-02 07:45:15,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_down_read_10 [2023-04-02 07:45:15,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_down_read_13 [2023-04-02 07:45:15,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_down_read_15 [2023-04-02 07:45:15,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_down_read_17 [2023-04-02 07:45:15,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_down_read_22 [2023-04-02 07:45:15,026 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2023-04-02 07:45:15,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_2 [2023-04-02 07:45:15,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_3 [2023-04-02 07:45:15,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_5 [2023-04-02 07:45:15,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_6 [2023-04-02 07:45:15,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_8 [2023-04-02 07:45:15,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_9 [2023-04-02 07:45:15,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_11 [2023-04-02 07:45:15,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_12 [2023-04-02 07:45:15,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_14 [2023-04-02 07:45:15,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_16 [2023-04-02 07:45:15,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_18 [2023-04-02 07:45:15,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_19 [2023-04-02 07:45:15,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_20 [2023-04-02 07:45:15,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_21 [2023-04-02 07:45:15,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_23 [2023-04-02 07:45:15,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_24 [2023-04-02 07:45:15,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_25 [2023-04-02 07:45:15,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_26 [2023-04-02 07:45:15,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_controls_rwsem_of_snd_card [2023-04-02 07:45:15,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_down_read_controls_rwsem_of_snd_card [2023-04-02 07:45:15,028 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-02 07:45:15,028 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-04-02 07:45:15,028 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-02 07:45:15,028 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2023-04-02 07:45:15,028 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2023-04-02 07:45:15,028 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-02 07:45:15,028 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2023-04-02 07:45:15,028 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-04-02 07:45:15,029 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2023-04-02 07:45:15,029 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2023-04-02 07:45:15,029 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2023-04-02 07:45:15,029 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2023-04-02 07:45:15,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 07:45:15,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 07:45:15,029 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2023-04-02 07:45:15,029 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2023-04-02 07:45:15,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 07:45:15,029 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 07:45:15,030 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 07:45:15,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-02 07:45:15,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-02 07:45:15,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 07:45:15,030 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-02 07:45:15,030 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2023-04-02 07:45:15,030 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2023-04-02 07:45:15,030 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-02 07:45:15,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2023-04-02 07:45:15,030 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2023-04-02 07:45:15,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-02 07:45:15,030 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-02 07:45:15,031 INFO L130 BoogieDeclarations]: Found specification of procedure trace_module_get [2023-04-02 07:45:15,031 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2023-04-02 07:45:15,031 INFO L130 BoogieDeclarations]: Found specification of procedure module_is_live [2023-04-02 07:45:15,031 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2023-04-02 07:45:15,031 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-04-02 07:45:15,031 INFO L130 BoogieDeclarations]: Found specification of procedure snd_register_oss_device [2023-04-02 07:45:15,031 INFO L130 BoogieDeclarations]: Found specification of procedure snd_unregister_oss_device [2023-04-02 07:45:15,031 INFO L130 BoogieDeclarations]: Found specification of procedure snd_lookup_oss_minor_data [2023-04-02 07:45:15,031 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_file_add [2023-04-02 07:45:15,031 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_file_remove [2023-04-02 07:45:15,031 INFO L130 BoogieDeclarations]: Found specification of procedure __snd_printk [2023-04-02 07:45:15,031 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ctl_notify [2023-04-02 07:45:15,032 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ctl_find_numid [2023-04-02 07:45:15,032 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ctl_find_id [2023-04-02 07:45:15,032 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-04-02 07:45:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure no_llseek [2023-04-02 07:45:15,036 INFO L130 BoogieDeclarations]: Found specification of procedure nonseekable_open [2023-04-02 07:45:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-04-02 07:45:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-04-02 07:45:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure snd_iprintf [2023-04-02 07:45:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure snd_info_get_line [2023-04-02 07:45:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure snd_info_get_str [2023-04-02 07:45:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure snd_info_create_card_entry [2023-04-02 07:45:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure snd_info_free_entry [2023-04-02 07:45:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure snd_info_register [2023-04-02 07:45:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure snd_oss_info_register [2023-04-02 07:45:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_open [2023-04-02 07:45:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 07:45:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_release [2023-04-02 07:45:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_info [2023-04-02 07:45:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 07:45:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-02 07:45:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 07:45:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 07:45:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_info_obsolete [2023-04-02 07:45:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_caps [2023-04-02 07:45:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_devmask [2023-04-02 07:45:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_stereodevs [2023-04-02 07:45:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_recmask [2023-04-02 07:45:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_get_recsrc [2023-04-02 07:45:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-02 07:45:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-04-02 07:45:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_set_recsrc [2023-04-02 07:45:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-04-02 07:45:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-04-02 07:45:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_get_volume [2023-04-02 07:45:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-04-02 07:45:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_set_volume [2023-04-02 07:45:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2023-04-02 07:45:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_ioctl1 [2023-04-02 07:45:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_ioctl [2023-04-02 07:45:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_ioctl_card [2023-04-02 07:45:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_conv [2023-04-02 07:45:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_conv1 [2023-04-02 07:45:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_conv2 [2023-04-02 07:45:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_test_id [2023-04-02 07:45:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-04-02 07:45:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_get_volume1_vol [2023-04-02 07:45:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_get_volume1_sw [2023-04-02 07:45:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_get_volume1 [2023-04-02 07:45:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_put_volume1_vol [2023-04-02 07:45:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_put_volume1_sw [2023-04-02 07:45:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_put_volume1 [2023-04-02 07:45:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_get_recsrc1_sw [2023-04-02 07:45:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_get_recsrc1_route [2023-04-02 07:45:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_put_recsrc1_sw [2023-04-02 07:45:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_put_recsrc1_route [2023-04-02 07:45:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_get_recsrc2 [2023-04-02 07:45:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_put_recsrc2 [2023-04-02 07:45:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_build_test [2023-04-02 07:45:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_slot_free [2023-04-02 07:45:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure mixer_slot_clear [2023-04-02 07:45:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-04-02 07:45:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_build_test_all [2023-04-02 07:45:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_build_input [2023-04-02 07:45:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_proc_read [2023-04-02 07:45:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_proc_write [2023-04-02 07:45:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_proc_init [2023-04-02 07:45:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_proc_done [2023-04-02 07:45:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_build [2023-04-02 07:45:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_free1 [2023-04-02 07:45:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_notify_handler [2023-04-02 07:45:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure alsa_mixer_oss_init [2023-04-02 07:45:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure alsa_mixer_oss_exit [2023-04-02 07:45:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-02 07:45:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-04-02 07:45:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-02 07:45:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-04-02 07:45:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 07:45:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-02 07:45:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_down_read_nested_controls_rwsem_of_snd_card [2023-04-02 07:45:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_down_write_nested_controls_rwsem_of_snd_card [2023-04-02 07:45:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_downgrade_write_controls_rwsem_of_snd_card [2023-04-02 07:45:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_write_controls_rwsem_of_snd_card [2023-04-02 07:45:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_down_write_trylock_controls_rwsem_of_snd_card [2023-04-02 07:45:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_down_read_trylock_controls_rwsem_of_snd_card [2023-04-02 07:45:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_down_write_controls_rwsem_of_snd_card [2023-04-02 07:45:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rwsem_is_locked_controls_rwsem_of_snd_card [2023-04-02 07:45:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-02 07:45:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 07:45:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 07:45:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 07:45:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-02 07:45:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 07:45:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-02 07:45:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-02 07:45:15,722 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 07:45:15,730 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 07:45:29,605 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 07:45:29,619 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 07:45:29,619 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 07:45:29,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 07:45:29 BoogieIcfgContainer [2023-04-02 07:45:29,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 07:45:29,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 07:45:29,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 07:45:29,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 07:45:29,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 07:45:12" (1/3) ... [2023-04-02 07:45:29,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21258847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 07:45:29, skipping insertion in model container [2023-04-02 07:45:29,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:14" (2/3) ... [2023-04-02 07:45:29,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21258847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 07:45:29, skipping insertion in model container [2023-04-02 07:45:29,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 07:45:29" (3/3) ... [2023-04-02 07:45:29,629 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_sound-core-oss-snd-mixer-oss-ko--143_7a--506218e.i [2023-04-02 07:45:29,644 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 07:45:29,644 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 07:45:29,732 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 07:45:29,739 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7f52af7d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 07:45:29,740 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 07:45:29,752 INFO L276 IsEmpty]: Start isEmpty. Operand has 1746 states, 1216 states have (on average 1.4407894736842106) internal successors, (1752), 1253 states have internal predecessors, (1752), 377 states have call successors, (377), 143 states have call predecessors, (377), 143 states have return successors, (377), 368 states have call predecessors, (377), 377 states have call successors, (377) [2023-04-02 07:45:29,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-04-02 07:45:29,758 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:45:29,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 07:45:29,759 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:45:29,764 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:45:29,764 INFO L85 PathProgramCache]: Analyzing trace with hash -2113704967, now seen corresponding path program 1 times [2023-04-02 07:45:29,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:45:29,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044856023] [2023-04-02 07:45:29,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:45:29,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:45:30,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:45:30,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:45:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:45:30,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:45:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:45:30,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 07:45:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:45:30,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 07:45:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:45:30,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 07:45:30,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:45:30,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044856023] [2023-04-02 07:45:30,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044856023] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:45:30,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:45:30,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 07:45:30,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291801100] [2023-04-02 07:45:30,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:45:30,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 07:45:30,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:45:30,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 07:45:30,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-04-02 07:45:30,649 INFO L87 Difference]: Start difference. First operand has 1746 states, 1216 states have (on average 1.4407894736842106) internal successors, (1752), 1253 states have internal predecessors, (1752), 377 states have call successors, (377), 143 states have call predecessors, (377), 143 states have return successors, (377), 368 states have call predecessors, (377), 377 states have call successors, (377) Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-04-02 07:45:35,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:45:37,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:45:39,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:46:03,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:46:05,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:46:07,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:46:12,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:46:12,729 INFO L93 Difference]: Finished difference Result 3584 states and 5507 transitions. [2023-04-02 07:46:12,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 07:46:12,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2023-04-02 07:46:12,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:46:12,760 INFO L225 Difference]: With dead ends: 3584 [2023-04-02 07:46:12,760 INFO L226 Difference]: Without dead ends: 1961 [2023-04-02 07:46:12,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-04-02 07:46:12,775 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 2070 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 6600 mSolverCounterSat, 958 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2140 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 7563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 958 IncrementalHoareTripleChecker+Valid, 6600 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.9s IncrementalHoareTripleChecker+Time [2023-04-02 07:46:12,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2140 Valid, 1247 Invalid, 7563 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [958 Valid, 6600 Invalid, 5 Unknown, 0 Unchecked, 40.9s Time] [2023-04-02 07:46:12,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1961 states. [2023-04-02 07:46:12,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1961 to 1532. [2023-04-02 07:46:12,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1073 states have (on average 1.4370922646784716) internal successors, (1542), 1098 states have internal predecessors, (1542), 333 states have call successors, (333), 128 states have call predecessors, (333), 125 states have return successors, (328), 324 states have call predecessors, (328), 328 states have call successors, (328) [2023-04-02 07:46:12,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 2203 transitions. [2023-04-02 07:46:12,987 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 2203 transitions. Word has length 24 [2023-04-02 07:46:12,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:46:12,987 INFO L495 AbstractCegarLoop]: Abstraction has 1532 states and 2203 transitions. [2023-04-02 07:46:12,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-04-02 07:46:12,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 2203 transitions. [2023-04-02 07:46:12,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-04-02 07:46:12,989 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:46:12,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 07:46:12,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 07:46:12,990 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:46:12,990 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:46:12,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1147113052, now seen corresponding path program 1 times [2023-04-02 07:46:12,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:46:12,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545689422] [2023-04-02 07:46:12,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:46:12,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:46:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:13,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:46:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:13,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:46:13,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:13,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 07:46:13,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:13,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 07:46:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:13,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 07:46:13,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:46:13,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545689422] [2023-04-02 07:46:13,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545689422] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 07:46:13,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337504466] [2023-04-02 07:46:13,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:46:13,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:46:13,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:46:13,606 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 07:46:13,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 07:46:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:14,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 1508 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 07:46:14,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:46:14,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 07:46:14,176 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 07:46:14,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 07:46:14,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337504466] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 07:46:14,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 07:46:14,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 9 [2023-04-02 07:46:14,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747137406] [2023-04-02 07:46:14,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 07:46:14,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 07:46:14,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:46:14,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 07:46:14,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-04-02 07:46:14,387 INFO L87 Difference]: Start difference. First operand 1532 states and 2203 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-04-02 07:46:20,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:46:22,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:46:24,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:46:26,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:46:29,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:46:31,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:46:55,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:46:57,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:46:59,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:47:03,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:47:03,684 INFO L93 Difference]: Finished difference Result 3499 states and 5159 transitions. [2023-04-02 07:47:03,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 07:47:03,685 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2023-04-02 07:47:03,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:47:03,698 INFO L225 Difference]: With dead ends: 3499 [2023-04-02 07:47:03,699 INFO L226 Difference]: Without dead ends: 1987 [2023-04-02 07:47:03,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-04-02 07:47:03,705 INFO L413 NwaCegarLoop]: 660 mSDtfsCounter, 3352 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 5612 mSolverCounterSat, 1561 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3428 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 7182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1561 IncrementalHoareTripleChecker+Valid, 5612 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.8s IncrementalHoareTripleChecker+Time [2023-04-02 07:47:03,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3428 Valid, 1226 Invalid, 7182 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1561 Valid, 5612 Invalid, 9 Unknown, 0 Unchecked, 47.8s Time] [2023-04-02 07:47:03,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2023-04-02 07:47:03,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1550. [2023-04-02 07:47:03,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1088 states have (on average 1.4338235294117647) internal successors, (1560), 1113 states have internal predecessors, (1560), 336 states have call successors, (336), 128 states have call predecessors, (336), 125 states have return successors, (331), 327 states have call predecessors, (331), 331 states have call successors, (331) [2023-04-02 07:47:03,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 2227 transitions. [2023-04-02 07:47:03,828 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 2227 transitions. Word has length 28 [2023-04-02 07:47:03,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:47:03,828 INFO L495 AbstractCegarLoop]: Abstraction has 1550 states and 2227 transitions. [2023-04-02 07:47:03,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-04-02 07:47:03,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 2227 transitions. [2023-04-02 07:47:03,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-04-02 07:47:03,831 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:47:03,831 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 07:47:03,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-02 07:47:04,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:47:04,047 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:47:04,048 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:47:04,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1910354341, now seen corresponding path program 2 times [2023-04-02 07:47:04,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:47:04,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229077091] [2023-04-02 07:47:04,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:47:04,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:47:04,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:04,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:47:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:04,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:47:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:04,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 07:47:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:04,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 07:47:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:05,301 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 07:47:05,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:47:05,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229077091] [2023-04-02 07:47:05,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229077091] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 07:47:05,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805201014] [2023-04-02 07:47:05,302 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-04-02 07:47:05,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:47:05,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:47:05,304 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 07:47:05,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 07:47:05,828 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-04-02 07:47:05,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-04-02 07:47:05,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 1499 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-02 07:47:05,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:47:05,984 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-04-02 07:47:05,984 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:47:05,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805201014] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:47:05,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 07:47:05,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 13 [2023-04-02 07:47:05,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127464418] [2023-04-02 07:47:05,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:47:05,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 07:47:05,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:47:05,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 07:47:05,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-04-02 07:47:05,986 INFO L87 Difference]: Start difference. First operand 1550 states and 2227 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-04-02 07:47:06,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:47:06,142 INFO L93 Difference]: Finished difference Result 1555 states and 2231 transitions. [2023-04-02 07:47:06,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 07:47:06,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 40 [2023-04-02 07:47:06,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:47:06,150 INFO L225 Difference]: With dead ends: 1555 [2023-04-02 07:47:06,150 INFO L226 Difference]: Without dead ends: 1550 [2023-04-02 07:47:06,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-04-02 07:47:06,157 INFO L413 NwaCegarLoop]: 2199 mSDtfsCounter, 23 mSDsluCounter, 6561 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 8760 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 07:47:06,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 8760 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 07:47:06,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2023-04-02 07:47:06,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1550. [2023-04-02 07:47:06,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1088 states have (on average 1.4329044117647058) internal successors, (1559), 1112 states have internal predecessors, (1559), 336 states have call successors, (336), 128 states have call predecessors, (336), 125 states have return successors, (331), 327 states have call predecessors, (331), 331 states have call successors, (331) [2023-04-02 07:47:06,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 2226 transitions. [2023-04-02 07:47:06,277 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 2226 transitions. Word has length 40 [2023-04-02 07:47:06,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:47:06,277 INFO L495 AbstractCegarLoop]: Abstraction has 1550 states and 2226 transitions. [2023-04-02 07:47:06,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-04-02 07:47:06,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 2226 transitions. [2023-04-02 07:47:06,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-04-02 07:47:06,284 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:47:06,285 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2023-04-02 07:47:06,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 07:47:06,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-04-02 07:47:06,496 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:47:06,496 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:47:06,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1451265086, now seen corresponding path program 1 times [2023-04-02 07:47:06,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:47:06,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213085527] [2023-04-02 07:47:06,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:47:06,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:47:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:06,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:47:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:06,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:47:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:06,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 07:47:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:06,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 07:47:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:06,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 07:47:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:06,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 07:47:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:07,043 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-02 07:47:07,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:47:07,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213085527] [2023-04-02 07:47:07,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213085527] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:47:07,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:47:07,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 07:47:07,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727410175] [2023-04-02 07:47:07,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:47:07,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 07:47:07,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:47:07,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 07:47:07,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-04-02 07:47:07,046 INFO L87 Difference]: Start difference. First operand 1550 states and 2226 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-04-02 07:47:12,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:47:14,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:47:16,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:47:44,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:47:46,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:47:48,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:47:54,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:47:54,315 INFO L93 Difference]: Finished difference Result 2002 states and 2991 transitions. [2023-04-02 07:47:54,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 07:47:54,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 50 [2023-04-02 07:47:54,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:47:54,328 INFO L225 Difference]: With dead ends: 2002 [2023-04-02 07:47:54,328 INFO L226 Difference]: Without dead ends: 1995 [2023-04-02 07:47:54,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-04-02 07:47:54,331 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 2063 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 6609 mSolverCounterSat, 950 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2132 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 7565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 950 IncrementalHoareTripleChecker+Valid, 6609 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.2s IncrementalHoareTripleChecker+Time [2023-04-02 07:47:54,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2132 Valid, 1225 Invalid, 7565 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [950 Valid, 6609 Invalid, 6 Unknown, 0 Unchecked, 46.2s Time] [2023-04-02 07:47:54,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2023-04-02 07:47:54,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1551. [2023-04-02 07:47:54,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1089 states have (on average 1.4325068870523416) internal successors, (1560), 1113 states have internal predecessors, (1560), 336 states have call successors, (336), 128 states have call predecessors, (336), 125 states have return successors, (331), 327 states have call predecessors, (331), 331 states have call successors, (331) [2023-04-02 07:47:54,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2227 transitions. [2023-04-02 07:47:54,445 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2227 transitions. Word has length 50 [2023-04-02 07:47:54,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:47:54,447 INFO L495 AbstractCegarLoop]: Abstraction has 1551 states and 2227 transitions. [2023-04-02 07:47:54,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-04-02 07:47:54,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2227 transitions. [2023-04-02 07:47:54,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-04-02 07:47:54,450 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:47:54,450 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2023-04-02 07:47:54,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 07:47:54,450 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:47:54,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:47:54,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1080366551, now seen corresponding path program 1 times [2023-04-02 07:47:54,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:47:54,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124628388] [2023-04-02 07:47:54,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:47:54,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:47:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:54,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:47:54,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:54,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:47:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:54,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 07:47:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:54,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 07:47:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:54,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 07:47:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:54,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 07:47:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:55,119 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-02 07:47:55,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:47:55,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124628388] [2023-04-02 07:47:55,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124628388] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 07:47:55,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952835377] [2023-04-02 07:47:55,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:47:55,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:47:55,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:47:55,122 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 07:47:55,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 07:47:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:55,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 1590 conjuncts, 6 conjunts are in the unsatisfiable core [2023-04-02 07:47:55,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:47:56,166 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 07:47:56,166 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 07:47:56,862 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 07:47:56,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952835377] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 07:47:56,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 07:47:56,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2023-04-02 07:47:56,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929631340] [2023-04-02 07:47:56,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 07:47:56,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 07:47:56,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:47:56,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 07:47:56,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-04-02 07:47:56,865 INFO L87 Difference]: Start difference. First operand 1551 states and 2227 transitions. Second operand has 17 states, 17 states have (on average 4.882352941176471) internal successors, (83), 14 states have internal predecessors, (83), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 07:48:09,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:48:11,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:48:13,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:48:15,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:48:17,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:48:19,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:48:22,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:48:24,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:48:26,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:48:28,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:48:30,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:48:32,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:48:34,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:48:36,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []