/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/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 05:00:40,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 05:00:40,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 05:00:40,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 05:00:40,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 05:00:40,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 05:00:40,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 05:00:40,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 05:00:40,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 05:00:40,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 05:00:40,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 05:00:40,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 05:00:40,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 05:00:40,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 05:00:40,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 05:00:40,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 05:00:40,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 05:00:40,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 05:00:40,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 05:00:40,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 05:00:40,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 05:00:40,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 05:00:40,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 05:00:40,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 05:00:40,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 05:00:40,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 05:00:40,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 05:00:40,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 05:00:40,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 05:00:40,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 05:00:40,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 05:00:40,920 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 05:00:40,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 05:00:40,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 05:00:40,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 05:00:40,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 05:00:40,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 05:00:40,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 05:00:40,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 05:00:40,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 05:00:40,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 05:00:40,924 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 05:00:40,946 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 05:00:40,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 05:00:40,947 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 05:00:40,947 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 05:00:40,948 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 05:00:40,948 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 05:00:40,948 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 05:00:40,948 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 05:00:40,948 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 05:00:40,948 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 05:00:40,949 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 05:00:40,949 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 05:00:40,949 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 05:00:40,949 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 05:00:40,949 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 05:00:40,949 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 05:00:40,949 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 05:00:40,949 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 05:00:40,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 05:00:40,950 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 05:00:40,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 05:00:40,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 05:00:40,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 05:00:40,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 05:00:40,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 05:00:40,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 05:00:40,950 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 05:00:40,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 05:00:40,951 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 05:00:40,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 05:00:40,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 05:00:40,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 05:00:40,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 05:00:40,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 05:00:40,951 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 05:00:40,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 05:00:40,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 05:00:40,952 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 05:00:40,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 05:00:40,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 05:00:40,952 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 05:00:40,952 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 05:00:41,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 05:00:41,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 05:00:41,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 05:00:41,160 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 05:00:41,160 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 05:00:41,161 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-04-03 05:00:42,334 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 05:00:42,742 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 05:00:42,743 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-04-03 05:00:42,783 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44babc452/25e31e3555764e799df6d11c9d2ca5c7/FLAGfa065004b [2023-04-03 05:00:42,794 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44babc452/25e31e3555764e799df6d11c9d2ca5c7 [2023-04-03 05:00:42,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 05:00:42,797 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 05:00:42,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 05:00:42,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 05:00:42,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 05:00:42,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 05:00:42" (1/1) ... [2023-04-03 05:00:42,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30c9b30d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:00:42, skipping insertion in model container [2023-04-03 05:00:42,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 05:00:42" (1/1) ... [2023-04-03 05:00:42,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 05:00:42,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 05:00:43,232 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3834] [2023-04-03 05:00:43,233 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3835-3836] [2023-04-03 05:00:43,554 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-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[119274,119287] [2023-04-03 05:00:44,236 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 05:00:44,281 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 05:00:44,344 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3834] [2023-04-03 05:00:44,345 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3835-3836] [2023-04-03 05:00:44,360 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-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[119274,119287] [2023-04-03 05:00:44,510 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 05:00:44,634 WARN L667 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 05:00:44,634 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 05:00:44,635 WARN L667 CHandler]: The function __cmpxchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 05:00:44,635 WARN L667 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 05:00:44,635 WARN L667 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 05:00:44,640 INFO L208 MainTranslator]: Completed translation [2023-04-03 05:00:44,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:00:44 WrapperNode [2023-04-03 05:00:44,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 05:00:44,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 05:00:44,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 05:00:44,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 05:00:44,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:00:44" (1/1) ... [2023-04-03 05:00:44,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:00:44" (1/1) ... [2023-04-03 05:00:44,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:00:44" (1/1) ... [2023-04-03 05:00:44,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:00:44" (1/1) ... [2023-04-03 05:00:44,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:00:44" (1/1) ... [2023-04-03 05:00:44,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:00:44" (1/1) ... [2023-04-03 05:00:44,947 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:00:44" (1/1) ... [2023-04-03 05:00:44,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:00:44" (1/1) ... [2023-04-03 05:00:44,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 05:00:44,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 05:00:44,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 05:00:44,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 05:00:44,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:00:44" (1/1) ... [2023-04-03 05:00:45,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 05:00:45,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 05:00:45,023 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) [2023-04-03 05:00:45,028 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 [2023-04-03 05:00:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 05:00:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 05:00:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 05:00:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-04-03 05:00:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2023-04-03 05:00:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2023-04-03 05:00:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-04-03 05:00:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-04-03 05:00:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2023-04-03 05:00:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-03 05:00:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-04-03 05:00:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-04-03 05:00:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-03 05:00:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-04-03 05:00:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_cmpxchg [2023-04-03 05:00:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __atomic_add_unless [2023-04-03 05:00:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_unless [2023-04-03 05:00:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2023-04-03 05:00:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-03 05:00:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_1 [2023-04-03 05:00:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_4 [2023-04-03 05:00:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_5 [2023-04-03 05:00:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_7 [2023-04-03 05:00:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_8 [2023-04-03 05:00:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-04-03 05:00:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-04-03 05:00:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get_unless_zero [2023-04-03 05:00:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-03 05:00:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_12 [2023-04-03 05:00:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 05:00:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 05:00:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 05:00:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 05:00:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 05:00:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 05:00:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 05:00:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 05:00:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-03 05:00:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-04-03 05:00:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-04-03 05:00:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tty_driver [2023-04-03 05:00:45,064 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2023-04-03 05:00:45,064 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_get [2023-04-03 05:00:45,064 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2023-04-03 05:00:45,064 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-04-03 05:00:45,064 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2023-04-03 05:00:45,064 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-04-03 05:00:45,064 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-04-03 05:00:45,064 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2023-04-03 05:00:45,064 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2023-04-03 05:00:45,064 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2023-04-03 05:00:45,064 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-04-03 05:00:45,064 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-03 05:00:45,064 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-03 05:00:45,064 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2023-04-03 05:00:45,064 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-04-03 05:00:45,065 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_mark_last_busy [2023-04-03 05:00:45,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-04-03 05:00:45,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-04-03 05:00:45,065 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-04-03 05:00:45,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2023-04-03 05:00:45,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_interface_claimed [2023-04-03 05:00:45,065 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2023-04-03 05:00:45,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-04-03 05:00:45,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-04-03 05:00:45,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-03 05:00:45,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2023-04-03 05:00:45,065 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2023-04-03 05:00:45,065 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_get_by_index [2023-04-03 05:00:45,065 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_alloc_minor [2023-04-03 05:00:45,065 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2023-04-03 05:00:45,065 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2023-04-03 05:00:45,065 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_alloc [2023-04-03 05:00:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2023-04-03 05:00:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2023-04-03 05:00:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2023-04-03 05:00:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure show_caps [2023-04-03 05:00:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure show_country_codes [2023-04-03 05:00:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure show_country_rel_date [2023-04-03 05:00:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_irq [2023-04-03 05:00:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2023-04-03 05:00:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2023-04-03 05:00:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_process_read_urb [2023-04-03 05:00:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_bulk_callback [2023-04-03 05:00:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_bulk [2023-04-03 05:00:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_softint [2023-04-03 05:00:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2023-04-03 05:00:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_open [2023-04-03 05:00:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_dtr_rts [2023-04-03 05:00:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_activate [2023-04-03 05:00:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_destruct [2023-04-03 05:00:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_shutdown [2023-04-03 05:00:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2023-04-03 05:00:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2023-04-03 05:00:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_close [2023-04-03 05:00:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write [2023-04-03 05:00:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2023-04-03 05:00:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2023-04-03 05:00:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2023-04-03 05:00:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2023-04-03 05:00:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2023-04-03 05:00:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2023-04-03 05:00:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2023-04-03 05:00:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure get_serial_info [2023-04-03 05:00:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure set_serial_info [2023-04-03 05:00:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_serial_change [2023-04-03 05:00:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure get_serial_usage [2023-04-03 05:00:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2023-04-03 05:00:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2023-04-03 05:00:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2023-04-03 05:00:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2023-04-03 05:00:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_alloc [2023-04-03 05:00:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_probe [2023-04-03 05:00:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2023-04-03 05:00:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2023-04-03 05:00:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_suspend [2023-04-03 05:00:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2023-04-03 05:00:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_reset_resume [2023-04-03 05:00:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_init [2023-04-03 05:00:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_exit [2023-04-03 05:00:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2023-04-03 05:00:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_port_operations_3 [2023-04-03 05:00:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_tty_operations_1 [2023-04-03 05:00:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 05:00:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-03 05:00:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-04-03 05:00:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-03 05:00:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-04-03 05:00:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-03 05:00:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-03 05:00:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-03 05:00:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_19 [2023-04-03 05:00:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_20 [2023-04-03 05:00:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_21 [2023-04-03 05:00:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_22 [2023-04-03 05:00:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_coherent_23 [2023-04-03 05:00:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_coherent_24 [2023-04-03 05:00:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_25 [2023-04-03 05:00:45,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_coherent_26 [2023-04-03 05:00:45,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_27 [2023-04-03 05:00:45,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_28 [2023-04-03 05:00:45,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2023-04-03 05:00:45,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_30 [2023-04-03 05:00:45,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_31 [2023-04-03 05:00:45,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-04-03 05:00:45,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-03 05:00:45,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2023-04-03 05:00:45,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-04-03 05:00:45,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-04-03 05:00:45,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2023-04-03 05:00:45,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2023-04-03 05:00:45,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2023-04-03 05:00:45,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-04-03 05:00:45,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-03 05:00:45,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-04-03 05:00:45,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-03 05:00:45,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-03 05:00:45,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __tty_alloc_driver [2023-04-03 05:00:45,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-04-03 05:00:45,071 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-04-03 05:00:45,071 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-04-03 05:00:45,071 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-04-03 05:00:45,071 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-03 05:00:45,071 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2023-04-03 05:00:45,071 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-03 05:00:45,071 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2023-04-03 05:00:45,071 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-03 05:00:45,071 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2023-04-03 05:00:45,071 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-04-03 05:00:45,071 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-04-03 05:00:45,071 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-03 05:00:45,071 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-04-03 05:00:45,071 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-04-03 05:00:45,072 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-04-03 05:00:45,072 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2023-04-03 05:00:45,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 05:00:45,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 05:00:45,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2023-04-03 05:00:45,072 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-04-03 05:00:45,072 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-04-03 05:00:45,072 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-04-03 05:00:45,072 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-03 05:00:45,072 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-03 05:00:45,072 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2023-04-03 05:00:45,072 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-04-03 05:00:45,072 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2023-04-03 05:00:45,072 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-04-03 05:00:45,072 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2023-04-03 05:00:45,072 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2023-04-03 05:00:45,072 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2023-04-03 05:00:45,073 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_close [2023-04-03 05:00:45,073 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_hangup [2023-04-03 05:00:45,073 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_init [2023-04-03 05:00:45,073 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_open [2023-04-03 05:00:45,073 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2023-04-03 05:00:45,073 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_register_device [2023-04-03 05:00:45,073 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2023-04-03 05:00:45,073 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2023-04-03 05:00:45,073 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_wakeup [2023-04-03 05:00:45,073 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_driver [2023-04-03 05:00:45,073 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_operations [2023-04-03 05:00:45,073 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_standard_install [2023-04-03 05:00:45,073 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_baud_rate [2023-04-03 05:00:45,073 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_device [2023-04-03 05:00:45,073 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2023-04-03 05:00:45,073 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_vhangup [2023-04-03 05:00:45,073 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-04-03 05:00:45,073 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-04-03 05:00:45,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2023-04-03 05:00:45,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2023-04-03 05:00:45,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_async [2023-04-03 05:00:45,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_no_resume [2023-04-03 05:00:45,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2023-04-03 05:00:45,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2023-04-03 05:00:45,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-04-03 05:00:45,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-03 05:00:45,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_claim_interface [2023-04-03 05:00:45,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2023-04-03 05:00:45,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-04-03 05:00:45,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-04-03 05:00:45,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_from_anchor [2023-04-03 05:00:45,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intf [2023-04-03 05:00:45,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2023-04-03 05:00:45,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-04-03 05:00:45,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2023-04-03 05:00:45,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-03 05:00:45,075 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-04-03 05:00:45,075 INFO L138 BoogieDeclarations]: Found implementation of procedure default_wake_function [2023-04-03 05:00:45,075 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 05:00:45,075 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 05:00:45,075 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 05:00:45,075 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-03 05:00:45,075 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 05:00:45,075 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 05:00:45,075 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 05:00:45,075 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 05:00:45,075 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 05:00:45,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 05:00:45,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 05:00:45,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-04-03 05:00:45,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-04-03 05:00:45,075 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-04-03 05:00:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2023-04-03 05:00:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2023-04-03 05:00:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-04-03 05:00:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 05:00:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-04-03 05:00:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2023-04-03 05:00:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-03 05:00:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-04-03 05:00:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-04-03 05:00:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-04-03 05:00:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-03 05:00:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 05:00:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-04-03 05:00:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-04-03 05:00:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-03 05:00:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 05:00:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-04-03 05:00:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-04-03 05:00:45,076 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-03 05:00:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-04-03 05:00:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2023-04-03 05:00:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-04-03 05:00:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_cmpxchg [2023-04-03 05:00:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure __atomic_add_unless [2023-04-03 05:00:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_unless [2023-04-03 05:00:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2023-04-03 05:00:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-04-03 05:00:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-03 05:00:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-03 05:00:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2023-04-03 05:00:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-03 05:00:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2023-04-03 05:00:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-03 05:00:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-03 05:00:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_1 [2023-04-03 05:00:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-03 05:00:45,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_4 [2023-04-03 05:00:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-04-03 05:00:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_5 [2023-04-03 05:00:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-03 05:00:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_7 [2023-04-03 05:00:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-04-03 05:00:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_8 [2023-04-03 05:00:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-03 05:00:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure default_wake_function [2023-04-03 05:00:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-03 05:00:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2023-04-03 05:00:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2023-04-03 05:00:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-04-03 05:00:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-03 05:00:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-04-03 05:00:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-03 05:00:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-04-03 05:00:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-04-03 05:00:45,078 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-04-03 05:00:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-04-03 05:00:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-04-03 05:00:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get_unless_zero [2023-04-03 05:00:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 05:00:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 05:00:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-03 05:00:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2023-04-03 05:00:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_12 [2023-04-03 05:00:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-03 05:00:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-03 05:00:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-04-03 05:00:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 05:00:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 05:00:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 05:00:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-03 05:00:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 05:00:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 05:00:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 05:00:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 05:00:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 05:00:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 05:00:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 05:00:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 05:00:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 05:00:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-03 05:00:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2023-04-03 05:00:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_port_operations_3 [2023-04-03 05:00:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_tty_operations_1 [2023-04-03 05:00:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-04-03 05:00:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-04-03 05:00:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-04-03 05:00:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2023-04-03 05:00:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2023-04-03 05:00:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-04-03 05:00:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-04-03 05:00:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure __tty_alloc_driver [2023-04-03 05:00:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2023-04-03 05:00:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_operations [2023-04-03 05:00:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tty_driver [2023-04-03 05:00:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2023-04-03 05:00:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_driver [2023-04-03 05:00:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2023-04-03 05:00:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_device [2023-04-03 05:00:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure tty_vhangup [2023-04-03 05:00:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_baud_rate [2023-04-03 05:00:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2023-04-03 05:00:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure tty_standard_install [2023-04-03 05:00:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_init [2023-04-03 05:00:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_register_device [2023-04-03 05:00:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2023-04-03 05:00:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_get [2023-04-03 05:00:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2023-04-03 05:00:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_hangup [2023-04-03 05:00:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2023-04-03 05:00:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_wakeup [2023-04-03 05:00:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_close [2023-04-03 05:00:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_open [2023-04-03 05:00:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2023-04-03 05:00:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2023-04-03 05:00:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2023-04-03 05:00:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-04-03 05:00:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2023-04-03 05:00:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-04-03 05:00:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-04-03 05:00:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2023-04-03 05:00:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2023-04-03 05:00:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2023-04-03 05:00:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-04-03 05:00:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-04-03 05:00:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-04-03 05:00:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-03 05:00:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 05:00:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-03 05:00:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-03 05:00:45,085 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-04-03 05:00:45,085 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-04-03 05:00:45,085 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-04-03 05:00:45,085 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2023-04-03 05:00:45,085 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-04-03 05:00:45,085 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_mark_last_busy [2023-04-03 05:00:45,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 05:00:45,085 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-04-03 05:00:45,085 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-04-03 05:00:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intf [2023-04-03 05:00:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2023-04-03 05:00:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-04-03 05:00:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2023-04-03 05:00:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2023-04-03 05:00:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_async [2023-04-03 05:00:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2023-04-03 05:00:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_no_resume [2023-04-03 05:00:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2023-04-03 05:00:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_claim_interface [2023-04-03 05:00:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_interface_claimed [2023-04-03 05:00:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2023-04-03 05:00:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2023-04-03 05:00:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-03 05:00:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_30 [2023-04-03 05:00:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-03 05:00:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_31 [2023-04-03 05:00:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2023-04-03 05:00:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 05:00:45,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 05:00:45,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 05:00:45,087 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-04-03 05:00:45,087 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-04-03 05:00:45,087 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-04-03 05:00:45,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_25 [2023-04-03 05:00:45,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_27 [2023-04-03 05:00:45,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_28 [2023-04-03 05:00:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-04-03 05:00:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-04-03 05:00:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_19 [2023-04-03 05:00:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_20 [2023-04-03 05:00:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_21 [2023-04-03 05:00:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_22 [2023-04-03 05:00:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2023-04-03 05:00:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-04-03 05:00:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2023-04-03 05:00:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_from_anchor [2023-04-03 05:00:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-04-03 05:00:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_coherent_23 [2023-04-03 05:00:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_coherent_24 [2023-04-03 05:00:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_coherent_26 [2023-04-03 05:00:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-04-03 05:00:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-04-03 05:00:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-03 05:00:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2023-04-03 05:00:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2023-04-03 05:00:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure acm_get_by_index [2023-04-03 05:00:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure acm_alloc_minor [2023-04-03 05:00:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2023-04-03 05:00:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2023-04-03 05:00:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_alloc [2023-04-03 05:00:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2023-04-03 05:00:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2023-04-03 05:00:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2023-04-03 05:00:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure show_caps [2023-04-03 05:00:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure show_country_codes [2023-04-03 05:00:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-03 05:00:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure show_country_rel_date [2023-04-03 05:00:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_irq [2023-04-03 05:00:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2023-04-03 05:00:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2023-04-03 05:00:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure acm_process_read_urb [2023-04-03 05:00:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_bulk_callback [2023-04-03 05:00:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_bulk [2023-04-03 05:00:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure acm_softint [2023-04-03 05:00:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2023-04-03 05:00:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_open [2023-04-03 05:00:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_dtr_rts [2023-04-03 05:00:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_activate [2023-04-03 05:00:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_destruct [2023-04-03 05:00:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_shutdown [2023-04-03 05:00:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2023-04-03 05:00:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2023-04-03 05:00:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_close [2023-04-03 05:00:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write [2023-04-03 05:00:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2023-04-03 05:00:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2023-04-03 05:00:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2023-04-03 05:00:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2023-04-03 05:00:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2023-04-03 05:00:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2023-04-03 05:00:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2023-04-03 05:00:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure get_serial_info [2023-04-03 05:00:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure set_serial_info [2023-04-03 05:00:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure wait_serial_change [2023-04-03 05:00:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure get_serial_usage [2023-04-03 05:00:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2023-04-03 05:00:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2023-04-03 05:00:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2023-04-03 05:00:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2023-04-03 05:00:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_alloc [2023-04-03 05:00:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure acm_probe [2023-04-03 05:00:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2023-04-03 05:00:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2023-04-03 05:00:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure acm_suspend [2023-04-03 05:00:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2023-04-03 05:00:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure acm_reset_resume [2023-04-03 05:00:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure acm_init [2023-04-03 05:00:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure acm_exit [2023-04-03 05:00:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 05:00:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 05:00:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 05:00:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2023-04-03 05:00:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-03 05:00:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2023-04-03 05:00:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2023-04-03 05:00:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 05:00:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 05:00:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 05:00:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 05:00:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 05:00:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 05:00:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 05:00:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-03 05:00:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 05:00:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-03 05:00:45,778 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 05:00:45,785 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 05:00:45,961 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 05:00:57,976 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 05:00:59,398 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 05:00:59,398 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-03 05:00:59,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 05:00:59 BoogieIcfgContainer [2023-04-03 05:00:59,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 05:00:59,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 05:00:59,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 05:00:59,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 05:00:59,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 05:00:42" (1/3) ... [2023-04-03 05:00:59,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9eab79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 05:00:59, skipping insertion in model container [2023-04-03 05:00:59,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:00:44" (2/3) ... [2023-04-03 05:00:59,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9eab79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 05:00:59, skipping insertion in model container [2023-04-03 05:00:59,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 05:00:59" (3/3) ... [2023-04-03 05:00:59,414 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-04-03 05:00:59,430 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 05:00:59,430 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 05:00:59,518 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 05:00:59,526 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=FINITE_AUTOMATA, 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;@14933430, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 05:00:59,526 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 05:00:59,536 INFO L276 IsEmpty]: Start isEmpty. Operand has 1814 states, 1058 states have (on average 1.274102079395085) internal successors, (1348), 1078 states have internal predecessors, (1348), 531 states have call successors, (531), 217 states have call predecessors, (531), 216 states have return successors, (523), 523 states have call predecessors, (523), 523 states have call successors, (523) [2023-04-03 05:00:59,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-04-03 05:00:59,564 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:00:59,565 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:00:59,565 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:00:59,569 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:00:59,570 INFO L85 PathProgramCache]: Analyzing trace with hash -168295220, now seen corresponding path program 1 times [2023-04-03 05:00:59,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:00:59,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102759982] [2023-04-03 05:00:59,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:00:59,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:00:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:01:00,436 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-04-03 05:01:00,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:01:00,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102759982] [2023-04-03 05:01:00,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102759982] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:01:00,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:01:00,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:01:00,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198599294] [2023-04-03 05:01:00,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:01:00,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:01:00,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:01:00,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:01:00,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:01:00,474 INFO L87 Difference]: Start difference. First operand has 1814 states, 1058 states have (on average 1.274102079395085) internal successors, (1348), 1078 states have internal predecessors, (1348), 531 states have call successors, (531), 217 states have call predecessors, (531), 216 states have return successors, (523), 523 states have call predecessors, (523), 523 states have call successors, (523) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-03 05:01:02,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:01:02,891 INFO L93 Difference]: Finished difference Result 4752 states and 6392 transitions. [2023-04-03 05:01:02,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:01:02,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 134 [2023-04-03 05:01:02,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:01:02,923 INFO L225 Difference]: With dead ends: 4752 [2023-04-03 05:01:02,923 INFO L226 Difference]: Without dead ends: 3073 [2023-04-03 05:01:02,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:01:02,942 INFO L413 NwaCegarLoop]: 1991 mSDtfsCounter, 1991 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1991 SdHoareTripleChecker+Valid, 3905 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-04-03 05:01:02,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1991 Valid, 3905 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-04-03 05:01:02,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3073 states. [2023-04-03 05:01:03,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3073 to 3070. [2023-04-03 05:01:03,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3070 states, 1823 states have (on average 1.2748217224355458) internal successors, (2324), 1839 states have internal predecessors, (2324), 876 states have call successors, (876), 372 states have call predecessors, (876), 370 states have return successors, (874), 874 states have call predecessors, (874), 874 states have call successors, (874) [2023-04-03 05:01:03,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3070 states to 3070 states and 4074 transitions. [2023-04-03 05:01:03,140 INFO L78 Accepts]: Start accepts. Automaton has 3070 states and 4074 transitions. Word has length 134 [2023-04-03 05:01:03,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:01:03,142 INFO L495 AbstractCegarLoop]: Abstraction has 3070 states and 4074 transitions. [2023-04-03 05:01:03,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-03 05:01:03,142 INFO L276 IsEmpty]: Start isEmpty. Operand 3070 states and 4074 transitions. [2023-04-03 05:01:03,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-04-03 05:01:03,151 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:01:03,152 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:01:03,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 05:01:03,152 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:01:03,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:01:03,153 INFO L85 PathProgramCache]: Analyzing trace with hash 876042974, now seen corresponding path program 1 times [2023-04-03 05:01:03,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:01:03,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409609536] [2023-04-03 05:01:03,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:01:03,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:01:03,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:01:03,676 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-04-03 05:01:03,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:01:03,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409609536] [2023-04-03 05:01:03,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409609536] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:01:03,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:01:03,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:01:03,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79388967] [2023-04-03 05:01:03,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:01:03,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:01:03,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:01:03,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:01:03,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:01:03,678 INFO L87 Difference]: Start difference. First operand 3070 states and 4074 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-03 05:01:05,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:01:05,640 INFO L93 Difference]: Finished difference Result 8154 states and 10788 transitions. [2023-04-03 05:01:05,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:01:05,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 140 [2023-04-03 05:01:05,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:01:05,665 INFO L225 Difference]: With dead ends: 8154 [2023-04-03 05:01:05,666 INFO L226 Difference]: Without dead ends: 5122 [2023-04-03 05:01:05,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:01:05,677 INFO L413 NwaCegarLoop]: 2141 mSDtfsCounter, 1489 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 3954 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-04-03 05:01:05,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 3954 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-04-03 05:01:05,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5122 states. [2023-04-03 05:01:05,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5122 to 5118. [2023-04-03 05:01:05,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5118 states, 3028 states have (on average 1.2681638044914134) internal successors, (3840), 3055 states have internal predecessors, (3840), 1462 states have call successors, (1462), 629 states have call predecessors, (1462), 627 states have return successors, (1460), 1459 states have call predecessors, (1460), 1460 states have call successors, (1460) [2023-04-03 05:01:05,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5118 states to 5118 states and 6762 transitions. [2023-04-03 05:01:05,887 INFO L78 Accepts]: Start accepts. Automaton has 5118 states and 6762 transitions. Word has length 140 [2023-04-03 05:01:05,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:01:05,888 INFO L495 AbstractCegarLoop]: Abstraction has 5118 states and 6762 transitions. [2023-04-03 05:01:05,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-03 05:01:05,888 INFO L276 IsEmpty]: Start isEmpty. Operand 5118 states and 6762 transitions. [2023-04-03 05:01:05,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-04-03 05:01:05,891 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:01:05,891 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:01:05,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 05:01:05,892 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:01:05,892 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:01:05,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1952728285, now seen corresponding path program 1 times [2023-04-03 05:01:05,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:01:05,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465548099] [2023-04-03 05:01:05,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:01:05,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:01:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:01:06,355 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-04-03 05:01:06,355 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:01:06,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465548099] [2023-04-03 05:01:06,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465548099] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:01:06,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:01:06,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:01:06,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820572532] [2023-04-03 05:01:06,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:01:06,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:01:06,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:01:06,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:01:06,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:01:06,358 INFO L87 Difference]: Start difference. First operand 5118 states and 6762 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-04-03 05:01:09,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:01:09,520 INFO L93 Difference]: Finished difference Result 12336 states and 16229 transitions. [2023-04-03 05:01:09,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:01:09,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 141 [2023-04-03 05:01:09,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:01:09,560 INFO L225 Difference]: With dead ends: 12336 [2023-04-03 05:01:09,560 INFO L226 Difference]: Without dead ends: 7256 [2023-04-03 05:01:09,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:01:09,582 INFO L413 NwaCegarLoop]: 1969 mSDtfsCounter, 1213 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 3848 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-04-03 05:01:09,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1213 Valid, 3848 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-04-03 05:01:09,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7256 states. [2023-04-03 05:01:09,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7256 to 7229. [2023-04-03 05:01:09,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7229 states, 4316 states have (on average 1.2743280815569973) internal successors, (5500), 4352 states have internal predecessors, (5500), 1992 states have call successors, (1992), 922 states have call predecessors, (1992), 920 states have return successors, (1994), 1988 states have call predecessors, (1994), 1990 states have call successors, (1994) [2023-04-03 05:01:09,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7229 states to 7229 states and 9486 transitions. [2023-04-03 05:01:09,961 INFO L78 Accepts]: Start accepts. Automaton has 7229 states and 9486 transitions. Word has length 141 [2023-04-03 05:01:09,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:01:09,961 INFO L495 AbstractCegarLoop]: Abstraction has 7229 states and 9486 transitions. [2023-04-03 05:01:09,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-04-03 05:01:09,962 INFO L276 IsEmpty]: Start isEmpty. Operand 7229 states and 9486 transitions. [2023-04-03 05:01:09,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-04-03 05:01:09,968 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:01:09,968 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:01:09,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 05:01:09,968 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:01:09,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:01:09,969 INFO L85 PathProgramCache]: Analyzing trace with hash 183561716, now seen corresponding path program 1 times [2023-04-03 05:01:09,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:01:09,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340044541] [2023-04-03 05:01:09,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:01:09,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:01:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:01:11,257 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2023-04-03 05:01:11,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:01:11,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340044541] [2023-04-03 05:01:11,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340044541] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:01:11,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:01:11,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-03 05:01:11,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418571673] [2023-04-03 05:01:11,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:01:11,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-03 05:01:11,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:01:11,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-03 05:01:11,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-03 05:01:11,259 INFO L87 Difference]: Start difference. First operand 7229 states and 9486 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-04-03 05:01:13,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:01:13,071 INFO L93 Difference]: Finished difference Result 7473 states and 9740 transitions. [2023-04-03 05:01:13,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-03 05:01:13,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 199 [2023-04-03 05:01:13,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:01:13,102 INFO L225 Difference]: With dead ends: 7473 [2023-04-03 05:01:13,102 INFO L226 Difference]: Without dead ends: 7470 [2023-04-03 05:01:13,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-03 05:01:13,109 INFO L413 NwaCegarLoop]: 1969 mSDtfsCounter, 1955 mSDsluCounter, 2153 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1955 SdHoareTripleChecker+Valid, 4122 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-03 05:01:13,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1955 Valid, 4122 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-03 05:01:13,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7470 states. [2023-04-03 05:01:13,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7470 to 7470. [2023-04-03 05:01:13,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7470 states, 4457 states have (on average 1.2714830603544987) internal successors, (5667), 4493 states have internal predecessors, (5667), 2031 states have call successors, (2031), 983 states have call predecessors, (2031), 981 states have return successors, (2033), 2027 states have call predecessors, (2033), 2029 states have call successors, (2033) [2023-04-03 05:01:13,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7470 states to 7470 states and 9731 transitions. [2023-04-03 05:01:13,366 INFO L78 Accepts]: Start accepts. Automaton has 7470 states and 9731 transitions. Word has length 199 [2023-04-03 05:01:13,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:01:13,367 INFO L495 AbstractCegarLoop]: Abstraction has 7470 states and 9731 transitions. [2023-04-03 05:01:13,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-04-03 05:01:13,367 INFO L276 IsEmpty]: Start isEmpty. Operand 7470 states and 9731 transitions. [2023-04-03 05:01:13,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-04-03 05:01:13,374 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:01:13,375 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:01:13,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 05:01:13,375 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:01:13,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:01:13,375 INFO L85 PathProgramCache]: Analyzing trace with hash 2132198918, now seen corresponding path program 1 times [2023-04-03 05:01:13,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:01:13,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002355357] [2023-04-03 05:01:13,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:01:13,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:01:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:01:13,836 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-04-03 05:01:13,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:01:13,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002355357] [2023-04-03 05:01:13,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002355357] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:01:13,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:01:13,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:01:13,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877614064] [2023-04-03 05:01:13,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:01:13,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:01:13,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:01:13,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:01:13,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:01:13,838 INFO L87 Difference]: Start difference. First operand 7470 states and 9731 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2023-04-03 05:01:16,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:01:16,942 INFO L93 Difference]: Finished difference Result 19136 states and 24927 transitions. [2023-04-03 05:01:16,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:01:16,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 205 [2023-04-03 05:01:16,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:01:17,007 INFO L225 Difference]: With dead ends: 19136 [2023-04-03 05:01:17,008 INFO L226 Difference]: Without dead ends: 11719 [2023-04-03 05:01:17,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:01:17,043 INFO L413 NwaCegarLoop]: 3044 mSDtfsCounter, 1955 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1955 SdHoareTripleChecker+Valid, 4861 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-04-03 05:01:17,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1955 Valid, 4861 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-04-03 05:01:17,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11719 states. [2023-04-03 05:01:17,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11719 to 11714. [2023-04-03 05:01:17,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11714 states, 7028 states have (on average 1.2642287990893568) internal successors, (8885), 7088 states have internal predecessors, (8885), 3131 states have call successors, (3131), 1556 states have call predecessors, (3131), 1554 states have return successors, (3135), 3125 states have call predecessors, (3135), 3129 states have call successors, (3135) [2023-04-03 05:01:17,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11714 states to 11714 states and 15151 transitions. [2023-04-03 05:01:17,456 INFO L78 Accepts]: Start accepts. Automaton has 11714 states and 15151 transitions. Word has length 205 [2023-04-03 05:01:17,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:01:17,457 INFO L495 AbstractCegarLoop]: Abstraction has 11714 states and 15151 transitions. [2023-04-03 05:01:17,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2023-04-03 05:01:17,457 INFO L276 IsEmpty]: Start isEmpty. Operand 11714 states and 15151 transitions. [2023-04-03 05:01:17,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-04-03 05:01:17,464 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:01:17,464 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:01:17,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 05:01:17,465 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:01:17,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:01:17,465 INFO L85 PathProgramCache]: Analyzing trace with hash 598341409, now seen corresponding path program 1 times [2023-04-03 05:01:17,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:01:17,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666299827] [2023-04-03 05:01:17,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:01:17,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:01:17,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:01:18,023 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-04-03 05:01:18,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:01:18,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666299827] [2023-04-03 05:01:18,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666299827] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:01:18,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:01:18,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 05:01:18,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581153375] [2023-04-03 05:01:18,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:01:18,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 05:01:18,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:01:18,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 05:01:18,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 05:01:18,025 INFO L87 Difference]: Start difference. First operand 11714 states and 15151 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2023-04-03 05:01:21,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:01:21,175 INFO L93 Difference]: Finished difference Result 23401 states and 30269 transitions. [2023-04-03 05:01:21,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 05:01:21,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) Word has length 219 [2023-04-03 05:01:21,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:01:21,225 INFO L225 Difference]: With dead ends: 23401 [2023-04-03 05:01:21,225 INFO L226 Difference]: Without dead ends: 11740 [2023-04-03 05:01:21,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-04-03 05:01:21,261 INFO L413 NwaCegarLoop]: 1949 mSDtfsCounter, 2161 mSDsluCounter, 3891 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2161 SdHoareTripleChecker+Valid, 5840 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-04-03 05:01:21,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2161 Valid, 5840 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-04-03 05:01:21,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11740 states. [2023-04-03 05:01:21,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11740 to 11732. [2023-04-03 05:01:21,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11732 states, 7040 states have (on average 1.263778409090909) internal successors, (8897), 7103 states have internal predecessors, (8897), 3131 states have call successors, (3131), 1556 states have call predecessors, (3131), 1560 states have return successors, (3147), 3128 states have call predecessors, (3147), 3129 states have call successors, (3147) [2023-04-03 05:01:21,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11732 states to 11732 states and 15175 transitions. [2023-04-03 05:01:21,835 INFO L78 Accepts]: Start accepts. Automaton has 11732 states and 15175 transitions. Word has length 219 [2023-04-03 05:01:21,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:01:21,836 INFO L495 AbstractCegarLoop]: Abstraction has 11732 states and 15175 transitions. [2023-04-03 05:01:21,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2023-04-03 05:01:21,836 INFO L276 IsEmpty]: Start isEmpty. Operand 11732 states and 15175 transitions. [2023-04-03 05:01:21,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-04-03 05:01:21,848 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:01:21,848 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:01:21,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 05:01:21,848 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:01:21,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:01:21,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1499620211, now seen corresponding path program 1 times [2023-04-03 05:01:21,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:01:21,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003820669] [2023-04-03 05:01:21,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:01:21,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:01:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:01:22,210 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2023-04-03 05:01:22,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:01:22,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003820669] [2023-04-03 05:01:22,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003820669] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:01:22,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:01:22,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:01:22,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294434913] [2023-04-03 05:01:22,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:01:22,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:01:22,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:01:22,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:01:22,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:01:22,212 INFO L87 Difference]: Start difference. First operand 11732 states and 15175 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-04-03 05:01:24,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:01:24,783 INFO L93 Difference]: Finished difference Result 23413 states and 30281 transitions. [2023-04-03 05:01:24,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:01:24,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 235 [2023-04-03 05:01:24,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:01:24,832 INFO L225 Difference]: With dead ends: 23413 [2023-04-03 05:01:24,832 INFO L226 Difference]: Without dead ends: 11722 [2023-04-03 05:01:24,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:01:24,866 INFO L413 NwaCegarLoop]: 1947 mSDtfsCounter, 0 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3890 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-04-03 05:01:24,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3890 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-04-03 05:01:24,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11722 states. [2023-04-03 05:01:25,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11722 to 11692. [2023-04-03 05:01:25,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11692 states, 7006 states have (on average 1.2633457036825577) internal successors, (8851), 7072 states have internal predecessors, (8851), 3131 states have call successors, (3131), 1556 states have call predecessors, (3131), 1554 states have return successors, (3135), 3119 states have call predecessors, (3135), 3129 states have call successors, (3135) [2023-04-03 05:01:25,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11692 states to 11692 states and 15117 transitions. [2023-04-03 05:01:25,373 INFO L78 Accepts]: Start accepts. Automaton has 11692 states and 15117 transitions. Word has length 235 [2023-04-03 05:01:25,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:01:25,374 INFO L495 AbstractCegarLoop]: Abstraction has 11692 states and 15117 transitions. [2023-04-03 05:01:25,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-04-03 05:01:25,374 INFO L276 IsEmpty]: Start isEmpty. Operand 11692 states and 15117 transitions. [2023-04-03 05:01:25,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-04-03 05:01:25,387 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:01:25,387 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:01:25,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 05:01:25,388 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:01:25,388 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:01:25,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1028538946, now seen corresponding path program 1 times [2023-04-03 05:01:25,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:01:25,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80675563] [2023-04-03 05:01:25,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:01:25,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:01:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:01:25,963 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-04-03 05:01:25,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:01:25,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80675563] [2023-04-03 05:01:25,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80675563] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:01:25,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:01:25,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 05:01:25,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676227071] [2023-04-03 05:01:25,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:01:25,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 05:01:25,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:01:25,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 05:01:25,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 05:01:25,965 INFO L87 Difference]: Start difference. First operand 11692 states and 15117 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2023-04-03 05:01:30,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:01:30,472 INFO L93 Difference]: Finished difference Result 23367 states and 30199 transitions. [2023-04-03 05:01:30,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 05:01:30,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) Word has length 230 [2023-04-03 05:01:30,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:01:30,519 INFO L225 Difference]: With dead ends: 23367 [2023-04-03 05:01:30,520 INFO L226 Difference]: Without dead ends: 11692 [2023-04-03 05:01:30,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 05:01:30,555 INFO L413 NwaCegarLoop]: 1945 mSDtfsCounter, 0 mSDsluCounter, 5828 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7773 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-04-03 05:01:30,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7773 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-04-03 05:01:30,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11692 states. [2023-04-03 05:01:30,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11692 to 11692. [2023-04-03 05:01:30,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11692 states, 7006 states have (on average 1.2616328860976307) internal successors, (8839), 7072 states have internal predecessors, (8839), 3131 states have call successors, (3131), 1556 states have call predecessors, (3131), 1554 states have return successors, (3135), 3119 states have call predecessors, (3135), 3129 states have call successors, (3135) [2023-04-03 05:01:31,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11692 states to 11692 states and 15105 transitions. [2023-04-03 05:01:31,032 INFO L78 Accepts]: Start accepts. Automaton has 11692 states and 15105 transitions. Word has length 230 [2023-04-03 05:01:31,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:01:31,032 INFO L495 AbstractCegarLoop]: Abstraction has 11692 states and 15105 transitions. [2023-04-03 05:01:31,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2023-04-03 05:01:31,033 INFO L276 IsEmpty]: Start isEmpty. Operand 11692 states and 15105 transitions. [2023-04-03 05:01:31,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-04-03 05:01:31,048 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:01:31,048 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:01:31,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-03 05:01:31,049 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:01:31,049 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:01:31,049 INFO L85 PathProgramCache]: Analyzing trace with hash -653488458, now seen corresponding path program 1 times [2023-04-03 05:01:31,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:01:31,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220342847] [2023-04-03 05:01:31,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:01:31,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:01:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:01:31,730 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-04-03 05:01:31,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:01:31,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220342847] [2023-04-03 05:01:31,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220342847] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:01:31,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:01:31,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:01:31,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168374659] [2023-04-03 05:01:31,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:01:31,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:01:31,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:01:31,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:01:31,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:01:31,733 INFO L87 Difference]: Start difference. First operand 11692 states and 15105 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-04-03 05:01:34,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:01:34,048 INFO L93 Difference]: Finished difference Result 27073 states and 34868 transitions. [2023-04-03 05:01:34,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:01:34,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 245 [2023-04-03 05:01:34,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:01:34,188 INFO L225 Difference]: With dead ends: 27073 [2023-04-03 05:01:34,188 INFO L226 Difference]: Without dead ends: 15434 [2023-04-03 05:01:34,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:01:34,215 INFO L413 NwaCegarLoop]: 3013 mSDtfsCounter, 1855 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1855 SdHoareTripleChecker+Valid, 4343 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-04-03 05:01:34,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1855 Valid, 4343 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-04-03 05:01:34,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15434 states. [2023-04-03 05:01:34,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15434 to 15395. [2023-04-03 05:01:34,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15395 states, 9298 states have (on average 1.2628522262852226) internal successors, (11742), 9383 states have internal predecessors, (11742), 3998 states have call successors, (3998), 2100 states have call predecessors, (3998), 2098 states have return successors, (4008), 3981 states have call predecessors, (4008), 3996 states have call successors, (4008) [2023-04-03 05:01:34,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15395 states to 15395 states and 19748 transitions. [2023-04-03 05:01:34,737 INFO L78 Accepts]: Start accepts. Automaton has 15395 states and 19748 transitions. Word has length 245 [2023-04-03 05:01:34,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:01:34,737 INFO L495 AbstractCegarLoop]: Abstraction has 15395 states and 19748 transitions. [2023-04-03 05:01:34,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-04-03 05:01:34,737 INFO L276 IsEmpty]: Start isEmpty. Operand 15395 states and 19748 transitions. [2023-04-03 05:01:34,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-04-03 05:01:34,757 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:01:34,757 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:01:34,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-03 05:01:34,757 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:01:34,758 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:01:34,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1853556070, now seen corresponding path program 1 times [2023-04-03 05:01:34,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:01:34,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961659793] [2023-04-03 05:01:34,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:01:34,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:01:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:01:37,480 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-04-03 05:01:37,480 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:01:37,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961659793] [2023-04-03 05:01:37,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961659793] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:01:37,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:01:37,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-03 05:01:37,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221220198] [2023-04-03 05:01:37,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:01:37,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-03 05:01:37,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:01:37,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-03 05:01:37,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-03 05:01:37,482 INFO L87 Difference]: Start difference. First operand 15395 states and 19748 transitions. Second operand has 10 states, 8 states have (on average 13.25) internal successors, (106), 7 states have internal predecessors, (106), 3 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (38), 6 states have call predecessors, (38), 3 states have call successors, (38) [2023-04-03 05:01:39,811 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 [] [2023-04-03 05:01:48,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:01:48,304 INFO L93 Difference]: Finished difference Result 31033 states and 39852 transitions. [2023-04-03 05:01:48,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-03 05:01:48,305 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 13.25) internal successors, (106), 7 states have internal predecessors, (106), 3 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (38), 6 states have call predecessors, (38), 3 states have call successors, (38) Word has length 242 [2023-04-03 05:01:48,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:01:48,369 INFO L225 Difference]: With dead ends: 31033 [2023-04-03 05:01:48,369 INFO L226 Difference]: Without dead ends: 15532 [2023-04-03 05:01:48,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2023-04-03 05:01:48,400 INFO L413 NwaCegarLoop]: 1942 mSDtfsCounter, 197 mSDsluCounter, 15464 mSDsCounter, 0 mSdLazyCounter, 2025 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 17406 SdHoareTripleChecker+Invalid, 2028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2025 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2023-04-03 05:01:48,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 17406 Invalid, 2028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2025 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2023-04-03 05:01:48,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15532 states. [2023-04-03 05:01:48,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15532 to 15519. [2023-04-03 05:01:48,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15519 states, 9378 states have (on average 1.262635956493922) internal successors, (11841), 9479 states have internal predecessors, (11841), 4015 states have call successors, (4015), 2113 states have call predecessors, (4015), 2125 states have return successors, (4077), 3996 states have call predecessors, (4077), 4013 states have call successors, (4077) [2023-04-03 05:01:48,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15519 states to 15519 states and 19933 transitions. [2023-04-03 05:01:48,977 INFO L78 Accepts]: Start accepts. Automaton has 15519 states and 19933 transitions. Word has length 242 [2023-04-03 05:01:48,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:01:48,979 INFO L495 AbstractCegarLoop]: Abstraction has 15519 states and 19933 transitions. [2023-04-03 05:01:48,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 13.25) internal successors, (106), 7 states have internal predecessors, (106), 3 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (38), 6 states have call predecessors, (38), 3 states have call successors, (38) [2023-04-03 05:01:48,979 INFO L276 IsEmpty]: Start isEmpty. Operand 15519 states and 19933 transitions. [2023-04-03 05:01:48,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-04-03 05:01:49,000 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:01:49,000 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:01:49,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-03 05:01:49,000 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:01:49,000 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:01:49,001 INFO L85 PathProgramCache]: Analyzing trace with hash 129157000, now seen corresponding path program 1 times [2023-04-03 05:01:49,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:01:49,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935844102] [2023-04-03 05:01:49,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:01:49,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:01:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:01:50,433 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2023-04-03 05:01:50,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:01:50,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935844102] [2023-04-03 05:01:50,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935844102] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:01:50,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:01:50,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-03 05:01:50,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321442707] [2023-04-03 05:01:50,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:01:50,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-03 05:01:50,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:01:50,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-03 05:01:50,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-03 05:01:50,435 INFO L87 Difference]: Start difference. First operand 15519 states and 19933 transitions. Second operand has 4 states, 3 states have (on average 35.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2023-04-03 05:01:53,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:01:53,733 INFO L93 Difference]: Finished difference Result 31016 states and 39857 transitions. [2023-04-03 05:01:53,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 05:01:53,733 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 35.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 256 [2023-04-03 05:01:53,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:01:53,784 INFO L225 Difference]: With dead ends: 31016 [2023-04-03 05:01:53,784 INFO L226 Difference]: Without dead ends: 15548 [2023-04-03 05:01:53,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-03 05:01:53,819 INFO L413 NwaCegarLoop]: 1942 mSDtfsCounter, 5 mSDsluCounter, 3877 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5819 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-04-03 05:01:53,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5819 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-04-03 05:01:53,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15548 states. [2023-04-03 05:01:54,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15548 to 15520. [2023-04-03 05:01:54,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15520 states, 9379 states have (on average 1.2626079539396524) internal successors, (11842), 9480 states have internal predecessors, (11842), 4015 states have call successors, (4015), 2113 states have call predecessors, (4015), 2125 states have return successors, (4077), 3996 states have call predecessors, (4077), 4013 states have call successors, (4077) [2023-04-03 05:01:54,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15520 states to 15520 states and 19934 transitions. [2023-04-03 05:01:54,372 INFO L78 Accepts]: Start accepts. Automaton has 15520 states and 19934 transitions. Word has length 256 [2023-04-03 05:01:54,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:01:54,373 INFO L495 AbstractCegarLoop]: Abstraction has 15520 states and 19934 transitions. [2023-04-03 05:01:54,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 35.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2023-04-03 05:01:54,373 INFO L276 IsEmpty]: Start isEmpty. Operand 15520 states and 19934 transitions. [2023-04-03 05:01:54,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-04-03 05:01:54,392 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:01:54,392 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:01:54,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-03 05:01:54,392 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:01:54,393 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:01:54,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1513196186, now seen corresponding path program 1 times [2023-04-03 05:01:54,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:01:54,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043306468] [2023-04-03 05:01:54,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:01:54,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:01:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:01:55,887 INFO L134 CoverageAnalysis]: Checked inductivity of 571 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2023-04-03 05:01:55,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:01:55,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043306468] [2023-04-03 05:01:55,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043306468] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 05:01:55,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895140377] [2023-04-03 05:01:55,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:01:55,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 05:01:55,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 05:01:55,899 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) [2023-04-03 05:01:55,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 05:01:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:01:57,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 7350 conjuncts, 13 conjunts are in the unsatisfiable core [2023-04-03 05:01:57,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 05:01:57,563 INFO L134 CoverageAnalysis]: Checked inductivity of 571 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2023-04-03 05:01:57,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 05:01:57,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895140377] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:01:57,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 05:01:57,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2023-04-03 05:01:57,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010828106] [2023-04-03 05:01:57,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:01:57,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 05:01:57,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:01:57,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 05:01:57,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-03 05:01:57,566 INFO L87 Difference]: Start difference. First operand 15520 states and 19934 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2023-04-03 05:02:01,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:02:01,905 INFO L93 Difference]: Finished difference Result 30788 states and 39555 transitions. [2023-04-03 05:02:01,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 05:02:01,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) Word has length 257 [2023-04-03 05:02:01,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:02:01,956 INFO L225 Difference]: With dead ends: 30788 [2023-04-03 05:02:01,957 INFO L226 Difference]: Without dead ends: 15254 [2023-04-03 05:02:01,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-03 05:02:01,994 INFO L413 NwaCegarLoop]: 1942 mSDtfsCounter, 4 mSDsluCounter, 7753 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9695 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-04-03 05:02:01,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9695 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-04-03 05:02:02,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15254 states. [2023-04-03 05:02:02,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15254 to 15134. [2023-04-03 05:02:02,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15134 states, 9169 states have (on average 1.2653506380194133) internal successors, (11602), 9272 states have internal predecessors, (11602), 3919 states have call successors, (3919), 2045 states have call predecessors, (3919), 2045 states have return successors, (3968), 3886 states have call predecessors, (3968), 3917 states have call successors, (3968) [2023-04-03 05:02:02,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15134 states to 15134 states and 19489 transitions. [2023-04-03 05:02:02,614 INFO L78 Accepts]: Start accepts. Automaton has 15134 states and 19489 transitions. Word has length 257 [2023-04-03 05:02:02,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:02:02,614 INFO L495 AbstractCegarLoop]: Abstraction has 15134 states and 19489 transitions. [2023-04-03 05:02:02,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2023-04-03 05:02:02,615 INFO L276 IsEmpty]: Start isEmpty. Operand 15134 states and 19489 transitions. [2023-04-03 05:02:02,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2023-04-03 05:02:02,629 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:02:02,629 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:02:02,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-03 05:02:02,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-04-03 05:02:02,845 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:02:02,845 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:02:02,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1964586668, now seen corresponding path program 1 times [2023-04-03 05:02:02,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:02:02,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210397222] [2023-04-03 05:02:02,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:02:02,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:02:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:02:04,106 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2023-04-03 05:02:04,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:02:04,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210397222] [2023-04-03 05:02:04,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210397222] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:02:04,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:02:04,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 05:02:04,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072421694] [2023-04-03 05:02:04,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:02:04,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 05:02:04,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:02:04,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 05:02:04,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-03 05:02:04,108 INFO L87 Difference]: Start difference. First operand 15134 states and 19489 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2023-04-03 05:02:08,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:02:08,510 INFO L93 Difference]: Finished difference Result 33609 states and 43247 transitions. [2023-04-03 05:02:08,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 05:02:08,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) Word has length 292 [2023-04-03 05:02:08,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:02:08,568 INFO L225 Difference]: With dead ends: 33609 [2023-04-03 05:02:08,568 INFO L226 Difference]: Without dead ends: 18617 [2023-04-03 05:02:08,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-04-03 05:02:08,607 INFO L413 NwaCegarLoop]: 2086 mSDtfsCounter, 1844 mSDsluCounter, 4257 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1844 SdHoareTripleChecker+Valid, 6343 SdHoareTripleChecker+Invalid, 1677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-04-03 05:02:08,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1844 Valid, 6343 Invalid, 1677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1657 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-04-03 05:02:08,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18617 states. [2023-04-03 05:02:09,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18617 to 18483. [2023-04-03 05:02:09,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18483 states, 11267 states have (on average 1.2680394071181327) internal successors, (14287), 11392 states have internal predecessors, (14287), 4708 states have call successors, (4708), 2503 states have call predecessors, (4708), 2507 states have return successors, (4766), 4671 states have call predecessors, (4766), 4706 states have call successors, (4766) [2023-04-03 05:02:09,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18483 states to 18483 states and 23761 transitions. [2023-04-03 05:02:09,369 INFO L78 Accepts]: Start accepts. Automaton has 18483 states and 23761 transitions. Word has length 292 [2023-04-03 05:02:09,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:02:09,369 INFO L495 AbstractCegarLoop]: Abstraction has 18483 states and 23761 transitions. [2023-04-03 05:02:09,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (49), 4 states have call predecessors, (49), 3 states have call successors, (49) [2023-04-03 05:02:09,370 INFO L276 IsEmpty]: Start isEmpty. Operand 18483 states and 23761 transitions. [2023-04-03 05:02:09,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-04-03 05:02:09,383 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:02:09,383 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:02:09,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-03 05:02:09,383 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:02:09,384 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:02:09,384 INFO L85 PathProgramCache]: Analyzing trace with hash 104903727, now seen corresponding path program 1 times [2023-04-03 05:02:09,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:02:09,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870593894] [2023-04-03 05:02:09,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:02:09,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:02:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:02:10,844 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2023-04-03 05:02:10,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:02:10,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870593894] [2023-04-03 05:02:10,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870593894] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 05:02:10,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399342947] [2023-04-03 05:02:10,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:02:10,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 05:02:10,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 05:02:10,853 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) [2023-04-03 05:02:10,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-03 05:02:23,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:02:23,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 7499 conjuncts, 8 conjunts are in the unsatisfiable core [2023-04-03 05:02:23,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 05:02:23,377 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 224 proven. 1 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2023-04-03 05:02:23,378 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 05:02:23,655 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2023-04-03 05:02:23,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399342947] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 05:02:23,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2026653305] [2023-04-03 05:02:23,676 INFO L159 IcfgInterpreter]: Started Sifa with 188 locations of interest [2023-04-03 05:02:23,676 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 05:02:23,679 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 05:02:23,683 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 05:02:23,683 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs