/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:15:43,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:15:43,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:15:43,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:15:43,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:15:43,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:15:43,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:15:43,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:15:43,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:15:43,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:15:43,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:15:43,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:15:43,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:15:43,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:15:43,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:15:43,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:15:43,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:15:43,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:15:43,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:15:43,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:15:43,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:15:43,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:15:43,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:15:43,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:15:43,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:15:43,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:15:43,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:15:43,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:15:43,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:15:43,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:15:43,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:15:43,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:15:43,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:15:43,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:15:43,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:15:43,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:15:43,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:15:43,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:15:43,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:15:43,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:15:43,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:15:43,983 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:15:44,012 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:15:44,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:15:44,013 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:15:44,014 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:15:44,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:15:44,015 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:15:44,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:15:44,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:15:44,016 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:15:44,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:15:44,017 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:15:44,017 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:15:44,017 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:15:44,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:15:44,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:15:44,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:15:44,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:15:44,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:15:44,019 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:15:44,019 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:15:44,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:15:44,019 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:15:44,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:15:44,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:15:44,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:15:44,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:15:44,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:15:44,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:15:44,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:15:44,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:15:44,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:15:44,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:15:44,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:15:44,022 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:15:44,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:15:44,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:15:44,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:15:44,459 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:15:44,460 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:15:44,462 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2022-10-15 21:15:44,555 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/552e4901c/2a602f94d549469abf011b01fa813097/FLAG5e999c5e4 [2022-10-15 21:15:45,727 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:15:45,728 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2022-10-15 21:15:45,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/552e4901c/2a602f94d549469abf011b01fa813097/FLAG5e999c5e4 [2022-10-15 21:15:46,115 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/552e4901c/2a602f94d549469abf011b01fa813097 [2022-10-15 21:15:46,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:15:46,127 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:15:46,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:15:46,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:15:46,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:15:46,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:15:46" (1/1) ... [2022-10-15 21:15:46,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56568ad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:46, skipping insertion in model container [2022-10-15 21:15:46,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:15:46" (1/1) ... [2022-10-15 21:15:46,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:15:46,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:15:47,548 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i[190557,190570] [2022-10-15 21:15:48,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:15:48,447 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:15:48,788 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i[190557,190570] [2022-10-15 21:15:49,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:15:49,171 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:15:49,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:49 WrapperNode [2022-10-15 21:15:49,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:15:49,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:15:49,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:15:49,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:15:49,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:49" (1/1) ... [2022-10-15 21:15:49,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:49" (1/1) ... [2022-10-15 21:15:49,353 INFO L138 Inliner]: procedures = 175, calls = 709, calls flagged for inlining = 71, calls inlined = 62, statements flattened = 1902 [2022-10-15 21:15:49,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:15:49,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:15:49,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:15:49,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:15:49,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:49" (1/1) ... [2022-10-15 21:15:49,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:49" (1/1) ... [2022-10-15 21:15:49,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:49" (1/1) ... [2022-10-15 21:15:49,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:49" (1/1) ... [2022-10-15 21:15:49,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:49" (1/1) ... [2022-10-15 21:15:49,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:49" (1/1) ... [2022-10-15 21:15:49,588 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:49" (1/1) ... [2022-10-15 21:15:49,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:49" (1/1) ... [2022-10-15 21:15:49,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:15:49,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:15:49,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:15:49,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:15:49,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:49" (1/1) ... [2022-10-15 21:15:49,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:15:49,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:15:49,685 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) [2022-10-15 21:15:49,713 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 [2022-10-15 21:15:49,757 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_scatter [2022-10-15 21:15:49,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_scatter [2022-10-15 21:15:49,758 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-15 21:15:49,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-15 21:15:49,758 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_submit_ctrl_out [2022-10-15 21:15:49,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_submit_ctrl_out [2022-10-15 21:15:49,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:15:49,759 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-10-15 21:15:49,759 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-10-15 21:15:49,759 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-10-15 21:15:49,759 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-10-15 21:15:49,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:15:49,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:15:49,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:15:49,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:15:49,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:15:49,761 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-10-15 21:15:49,761 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-10-15 21:15:49,761 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_diag_write32 [2022-10-15 21:15:49,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_diag_write32 [2022-10-15 21:15:49,761 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_destroy [2022-10-15 21:15:49,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_destroy [2022-10-15 21:15:49,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-10-15 21:15:49,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-10-15 21:15:49,762 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-15 21:15:49,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-15 21:15:49,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:15:49,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:15:49,762 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_default_pipe [2022-10-15 21:15:49,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_default_pipe [2022-10-15 21:15:49,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-10-15 21:15:49,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-10-15 21:15:49,763 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:15:49,763 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:15:49,763 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_power_off [2022-10-15 21:15:49,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_power_off [2022-10-15 21:15:49,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:15:49,764 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_bmi_read [2022-10-15 21:15:49,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_bmi_read [2022-10-15 21:15:49,764 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-10-15 21:15:49,764 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-10-15 21:15:49,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:15:49,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:15:49,765 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_stop [2022-10-15 21:15:49,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_stop [2022-10-15 21:15:49,765 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_free_queue_number [2022-10-15 21:15:49,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_free_queue_number [2022-10-15 21:15:49,765 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_free_urb_to_pipe [2022-10-15 21:15:49,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_free_urb_to_pipe [2022-10-15 21:15:49,766 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_flush_all [2022-10-15 21:15:49,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_flush_all [2022-10-15 21:15:49,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-10-15 21:15:49,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:15:49,767 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:15:49,767 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:15:49,768 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:15:49,768 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_ctrl_msg_exchange [2022-10-15 21:15:49,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_ctrl_msg_exchange [2022-10-15 21:15:49,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:15:49,770 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_recv_urb [2022-10-15 21:15:49,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_recv_urb [2022-10-15 21:15:49,772 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-15 21:15:49,772 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-15 21:15:49,772 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_submit_ctrl_in [2022-10-15 21:15:49,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_submit_ctrl_in [2022-10-15 21:15:49,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:15:49,773 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_power_on [2022-10-15 21:15:49,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_power_on [2022-10-15 21:15:49,774 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_priv [2022-10-15 21:15:49,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_priv [2022-10-15 21:15:49,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:15:49,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:15:49,775 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-15 21:15:49,776 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-15 21:15:49,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:15:49,776 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-10-15 21:15:49,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-10-15 21:15:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-10-15 21:15:49,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-10-15 21:15:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_alloc_urb_from_pipe [2022-10-15 21:15:49,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_alloc_urb_from_pipe [2022-10-15 21:15:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-10-15 21:15:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_remove [2022-10-15 21:15:49,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_remove [2022-10-15 21:15:49,783 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-10-15 21:15:49,783 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-10-15 21:15:49,783 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-15 21:15:49,783 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-15 21:15:49,784 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-10-15 21:15:49,784 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-10-15 21:15:49,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:15:49,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:15:49,784 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_post_recv_transfers [2022-10-15 21:15:49,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_post_recv_transfers [2022-10-15 21:15:49,786 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-15 21:15:49,786 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-15 21:15:49,787 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-15 21:15:49,788 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-15 21:15:49,788 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_map_service_pipe [2022-10-15 21:15:49,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_map_service_pipe [2022-10-15 21:15:49,788 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-15 21:15:49,788 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-15 21:15:49,788 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-10-15 21:15:49,788 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-10-15 21:15:49,788 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-10-15 21:15:49,789 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-10-15 21:15:49,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:15:49,789 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_send [2022-10-15 21:15:49,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_send [2022-10-15 21:15:49,790 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-10-15 21:15:49,790 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-10-15 21:15:49,790 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-10-15 21:15:49,790 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-10-15 21:15:49,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:15:49,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-10-15 21:15:49,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:15:49,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:15:49,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:15:49,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:15:50,529 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:15:50,534 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:15:50,797 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:15:55,380 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:15:55,398 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:15:55,399 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-15 21:15:55,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:15:55 BoogieIcfgContainer [2022-10-15 21:15:55,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:15:55,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:15:55,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:15:55,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:15:55,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:15:46" (1/3) ... [2022-10-15 21:15:55,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b92538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:15:55, skipping insertion in model container [2022-10-15 21:15:55,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:49" (2/3) ... [2022-10-15 21:15:55,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b92538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:15:55, skipping insertion in model container [2022-10-15 21:15:55,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:15:55" (3/3) ... [2022-10-15 21:15:55,414 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2022-10-15 21:15:55,438 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:15:55,438 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2022-10-15 21:15:55,562 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:15:55,577 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;@6f14917f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:15:55,578 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2022-10-15 21:15:55,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 806 states, 558 states have (on average 1.3978494623655915) internal successors, (780), 611 states have internal predecessors, (780), 158 states have call successors, (158), 50 states have call predecessors, (158), 49 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2022-10-15 21:15:55,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-10-15 21:15:55,628 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:15:55,630 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2022-10-15 21:15:55,630 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ath6kl_usb_power_onErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ath6kl_usb_power_onErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2022-10-15 21:15:55,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:15:55,637 INFO L85 PathProgramCache]: Analyzing trace with hash -631360599, now seen corresponding path program 1 times [2022-10-15 21:15:55,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:15:55,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254161166] [2022-10-15 21:15:55,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:15:55,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:15:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:56,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:15:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:56,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:15:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:56,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:15:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:56,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:15:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:56,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:15:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:56,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:15:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:56,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:15:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:56,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:15:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:56,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:15:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:56,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:15:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:56,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:15:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:56,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-15 21:15:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:56,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-15 21:15:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:56,940 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-10-15 21:15:56,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:15:56,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254161166] [2022-10-15 21:15:56,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254161166] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:15:56,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:15:56,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:15:56,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512298] [2022-10-15 21:15:56,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:15:56,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:15:56,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:15:56,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:15:56,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:15:56,996 INFO L87 Difference]: Start difference. First operand has 806 states, 558 states have (on average 1.3978494623655915) internal successors, (780), 611 states have internal predecessors, (780), 158 states have call successors, (158), 50 states have call predecessors, (158), 49 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-10-15 21:15:58,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:16:03,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:16:03,748 INFO L93 Difference]: Finished difference Result 2336 states and 3274 transitions. [2022-10-15 21:16:03,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:16:03,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 97 [2022-10-15 21:16:03,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:16:03,790 INFO L225 Difference]: With dead ends: 2336 [2022-10-15 21:16:03,791 INFO L226 Difference]: Without dead ends: 1500 [2022-10-15 21:16:03,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:16:03,810 INFO L413 NwaCegarLoop]: 1124 mSDtfsCounter, 1490 mSDsluCounter, 1631 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 687 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1564 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 2006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 687 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:16:03,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1564 Valid, 2755 Invalid, 2006 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [687 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-10-15 21:16:03,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2022-10-15 21:16:04,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1222. [2022-10-15 21:16:04,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 873 states have (on average 1.3757159221076747) internal successors, (1201), 927 states have internal predecessors, (1201), 228 states have call successors, (228), 81 states have call predecessors, (228), 81 states have return successors, (228), 228 states have call predecessors, (228), 228 states have call successors, (228) [2022-10-15 21:16:04,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1657 transitions. [2022-10-15 21:16:04,123 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1657 transitions. Word has length 97 [2022-10-15 21:16:04,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:16:04,124 INFO L495 AbstractCegarLoop]: Abstraction has 1222 states and 1657 transitions. [2022-10-15 21:16:04,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-10-15 21:16:04,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1657 transitions. [2022-10-15 21:16:04,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-10-15 21:16:04,135 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:16:04,135 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2022-10-15 21:16:04,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:16:04,136 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ath6kl_usb_flush_allErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ath6kl_usb_power_onErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ath6kl_usb_power_onErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2022-10-15 21:16:04,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:16:04,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1386314041, now seen corresponding path program 1 times [2022-10-15 21:16:04,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:16:04,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106906315] [2022-10-15 21:16:04,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:16:04,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:16:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:04,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:16:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:04,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:16:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:04,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:16:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:04,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:16:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:04,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:16:04,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:04,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:16:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:04,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:16:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:04,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:16:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:04,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:16:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:04,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:16:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:04,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:16:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:04,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-15 21:16:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:04,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-15 21:16:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:04,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-15 21:16:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:04,751 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-10-15 21:16:04,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:16:04,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106906315] [2022-10-15 21:16:04,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106906315] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:16:04,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:16:04,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:16:04,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31812385] [2022-10-15 21:16:04,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:16:04,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:16:04,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:16:04,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:16:04,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:16:04,757 INFO L87 Difference]: Start difference. First operand 1222 states and 1657 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-15 21:16:07,453 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 [] [2022-10-15 21:16:12,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:16:12,596 INFO L93 Difference]: Finished difference Result 3294 states and 4515 transitions. [2022-10-15 21:16:12,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:16:12,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 100 [2022-10-15 21:16:12,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:16:12,616 INFO L225 Difference]: With dead ends: 3294 [2022-10-15 21:16:12,616 INFO L226 Difference]: Without dead ends: 2102 [2022-10-15 21:16:12,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:16:12,625 INFO L413 NwaCegarLoop]: 1533 mSDtfsCounter, 1271 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 618 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 3671 SdHoareTripleChecker+Invalid, 2003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:16:12,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 3671 Invalid, 2003 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [618 Valid, 1384 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-10-15 21:16:12,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2102 states. [2022-10-15 21:16:12,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2102 to 1715. [2022-10-15 21:16:12,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1235 states have (on average 1.3789473684210527) internal successors, (1703), 1293 states have internal predecessors, (1703), 317 states have call successors, (317), 123 states have call predecessors, (317), 123 states have return successors, (317), 317 states have call predecessors, (317), 317 states have call successors, (317) [2022-10-15 21:16:12,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2337 transitions. [2022-10-15 21:16:12,812 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2337 transitions. Word has length 100 [2022-10-15 21:16:12,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:16:12,813 INFO L495 AbstractCegarLoop]: Abstraction has 1715 states and 2337 transitions. [2022-10-15 21:16:12,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-15 21:16:12,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2337 transitions. [2022-10-15 21:16:12,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-10-15 21:16:12,817 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:16:12,818 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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] [2022-10-15 21:16:12,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:16:12,819 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ath6kl_usb_flush_allErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ath6kl_usb_power_onErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ath6kl_usb_power_onErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2022-10-15 21:16:12,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:16:12,819 INFO L85 PathProgramCache]: Analyzing trace with hash 996175650, now seen corresponding path program 1 times [2022-10-15 21:16:12,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:16:12,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60542499] [2022-10-15 21:16:12,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:16:12,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:16:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:13,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:16:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:13,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:16:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:13,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:16:13,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:13,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:16:13,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:13,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:16:13,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:13,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:16:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:13,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:16:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:13,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:16:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:13,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:16:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:13,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:16:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:13,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:16:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:13,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-15 21:16:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:13,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-15 21:16:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:13,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-15 21:16:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:13,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-15 21:16:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:13,285 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-10-15 21:16:13,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:16:13,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60542499] [2022-10-15 21:16:13,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60542499] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:16:13,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:16:13,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:16:13,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459214856] [2022-10-15 21:16:13,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:16:13,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:16:13,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:16:13,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:16:13,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:16:13,289 INFO L87 Difference]: Start difference. First operand 1715 states and 2337 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:16:14,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:16:16,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:16:18,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:16:21,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:16:21,893 INFO L93 Difference]: Finished difference Result 3739 states and 5177 transitions. [2022-10-15 21:16:21,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:16:21,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 120 [2022-10-15 21:16:21,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:16:21,919 INFO L225 Difference]: With dead ends: 3739 [2022-10-15 21:16:21,919 INFO L226 Difference]: Without dead ends: 2067 [2022-10-15 21:16:21,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:16:21,932 INFO L413 NwaCegarLoop]: 998 mSDtfsCounter, 557 mSDsluCounter, 1676 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 409 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:16:21,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 2674 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 1041 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-10-15 21:16:21,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2067 states. [2022-10-15 21:16:22,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2067 to 1708. [2022-10-15 21:16:22,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1708 states, 1228 states have (on average 1.3786644951140066) internal successors, (1693), 1287 states have internal predecessors, (1693), 317 states have call successors, (317), 123 states have call predecessors, (317), 123 states have return successors, (317), 316 states have call predecessors, (317), 317 states have call successors, (317) [2022-10-15 21:16:22,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1708 states to 1708 states and 2327 transitions. [2022-10-15 21:16:22,106 INFO L78 Accepts]: Start accepts. Automaton has 1708 states and 2327 transitions. Word has length 120 [2022-10-15 21:16:22,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:16:22,107 INFO L495 AbstractCegarLoop]: Abstraction has 1708 states and 2327 transitions. [2022-10-15 21:16:22,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:16:22,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1708 states and 2327 transitions. [2022-10-15 21:16:22,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-15 21:16:22,111 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:16:22,112 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2022-10-15 21:16:22,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:16:22,113 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ath6kl_usb_power_onErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ath6kl_usb_power_onErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2022-10-15 21:16:22,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:16:22,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1724720929, now seen corresponding path program 1 times [2022-10-15 21:16:22,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:16:22,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631906888] [2022-10-15 21:16:22,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:16:22,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:16:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:22,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:16:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:22,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:16:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:22,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:16:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:22,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:16:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:22,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:16:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:22,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:16:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:22,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:16:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:22,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:16:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:22,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:16:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:22,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:16:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:22,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:16:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:22,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-15 21:16:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:22,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-15 21:16:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:22,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-15 21:16:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:22,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-15 21:16:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:22,828 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2022-10-15 21:16:22,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:16:22,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631906888] [2022-10-15 21:16:22,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631906888] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:16:22,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:16:22,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:16:22,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606137577] [2022-10-15 21:16:22,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:16:22,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:16:22,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:16:22,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:16:22,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:16:22,840 INFO L87 Difference]: Start difference. First operand 1708 states and 2327 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:16:24,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:16:26,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:16:31,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:16:31,406 INFO L93 Difference]: Finished difference Result 5028 states and 6931 transitions. [2022-10-15 21:16:31,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:16:31,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 124 [2022-10-15 21:16:31,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:16:31,439 INFO L225 Difference]: With dead ends: 5028 [2022-10-15 21:16:31,439 INFO L226 Difference]: Without dead ends: 3365 [2022-10-15 21:16:31,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:16:31,452 INFO L413 NwaCegarLoop]: 1251 mSDtfsCounter, 1729 mSDsluCounter, 1724 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 843 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1805 SdHoareTripleChecker+Valid, 2975 SdHoareTripleChecker+Invalid, 2419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 843 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:16:31,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1805 Valid, 2975 Invalid, 2419 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [843 Valid, 1575 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-10-15 21:16:31,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3365 states. [2022-10-15 21:16:31,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3365 to 2706. [2022-10-15 21:16:31,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2706 states, 1982 states have (on average 1.3592330978809284) internal successors, (2694), 2054 states have internal predecessors, (2694), 476 states have call successors, (476), 208 states have call predecessors, (476), 208 states have return successors, (476), 474 states have call predecessors, (476), 476 states have call successors, (476) [2022-10-15 21:16:31,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2706 states to 2706 states and 3646 transitions. [2022-10-15 21:16:31,688 INFO L78 Accepts]: Start accepts. Automaton has 2706 states and 3646 transitions. Word has length 124 [2022-10-15 21:16:31,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:16:31,689 INFO L495 AbstractCegarLoop]: Abstraction has 2706 states and 3646 transitions. [2022-10-15 21:16:31,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-15 21:16:31,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2706 states and 3646 transitions. [2022-10-15 21:16:31,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-15 21:16:31,693 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:16:31,693 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2022-10-15 21:16:31,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:16:31,694 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ath6kl_usb_flush_allErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ath6kl_usb_power_onErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ath6kl_usb_power_onErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2022-10-15 21:16:31,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:16:31,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1239403839, now seen corresponding path program 1 times [2022-10-15 21:16:31,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:16:31,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109730191] [2022-10-15 21:16:31,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:16:31,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:16:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:32,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:16:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:32,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:16:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:32,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:16:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:32,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:16:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:32,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:16:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:32,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:16:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:32,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:16:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:32,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:16:32,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:32,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:16:32,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:32,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:16:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:32,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:16:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:32,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-15 21:16:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:32,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-15 21:16:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:32,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-15 21:16:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:32,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-15 21:16:32,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:32,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-15 21:16:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:32,384 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2022-10-15 21:16:32,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:16:32,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109730191] [2022-10-15 21:16:32,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109730191] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:16:32,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:16:32,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:16:32,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165344459] [2022-10-15 21:16:32,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:16:32,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:16:32,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:16:32,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:16:32,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:16:32,391 INFO L87 Difference]: Start difference. First operand 2706 states and 3646 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-10-15 21:16:34,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:16:35,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []