/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-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--pegasus.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:18:51,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:18:51,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:18:51,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:18:51,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:18:51,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:18:51,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:18:51,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:18:51,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:18:51,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:18:51,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:18:51,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:18:51,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:18:51,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:18:51,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:18:51,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:18:51,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:18:51,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:18:51,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:18:51,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:18:51,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:18:51,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:18:51,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:18:51,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:18:51,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:18:51,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:18:51,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:18:51,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:18:51,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:18:51,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:18:51,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:18:51,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:18:51,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:18:51,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:18:51,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:18:51,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:18:51,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:18:51,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:18:51,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:18:51,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:18:51,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:18:51,395 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 21:18:51,446 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:18:51,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:18:51,447 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:18:51,447 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:18:51,449 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:18:51,449 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:18:51,452 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:18:51,452 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:18:51,452 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:18:51,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:18:51,454 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:18:51,454 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:18:51,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:18:51,454 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:18:51,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:18:51,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:18:51,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:18:51,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:18:51,455 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:18:51,455 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:18:51,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:18:51,456 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:18:51,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:18:51,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:18:51,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:18:51,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:18:51,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:18:51,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:18:51,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:18:51,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:18:51,457 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:18:51,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:18:51,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:18:51,458 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:18:51,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:18:51,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:18:51,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:18:51,920 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:18:51,921 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:18:51,923 INFO L432 ainManager$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--net--usb--pegasus.ko-entry_point.cil.out.i [2022-10-15 21:18:51,995 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a53d5ad06/ce0cb64513f5433d8872c2e36085809a/FLAG114cd76cc [2022-10-15 21:18:53,088 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:18:53,090 INFO L160 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--net--usb--pegasus.ko-entry_point.cil.out.i [2022-10-15 21:18:53,160 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a53d5ad06/ce0cb64513f5433d8872c2e36085809a/FLAG114cd76cc [2022-10-15 21:18:53,430 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a53d5ad06/ce0cb64513f5433d8872c2e36085809a [2022-10-15 21:18:53,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:18:53,440 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:18:53,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:18:53,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:18:53,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:18:53,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:18:53" (1/1) ... [2022-10-15 21:18:53,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15576acf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:18:53, skipping insertion in model container [2022-10-15 21:18:53,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:18:53" (1/1) ... [2022-10-15 21:18:53,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:18:53,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:18:54,258 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5411] [2022-10-15 21:18:54,258 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5412-5413] [2022-10-15 21:18:54,569 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-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--pegasus.ko-entry_point.cil.out.i[162723,162736] [2022-10-15 21:18:55,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:18:55,859 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:18:56,086 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5411] [2022-10-15 21:18:56,087 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5412-5413] [2022-10-15 21:18:56,097 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-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--pegasus.ko-entry_point.cil.out.i[162723,162736] [2022-10-15 21:18:56,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:18:56,637 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:18:56,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:18:56 WrapperNode [2022-10-15 21:18:56,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:18:56,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:18:56,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:18:56,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:18:56,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:18:56" (1/1) ... [2022-10-15 21:18:56,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:18:56" (1/1) ... [2022-10-15 21:18:57,046 INFO L138 Inliner]: procedures = 235, calls = 2844, calls flagged for inlining = 112, calls inlined = 104, statements flattened = 4863 [2022-10-15 21:18:57,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:18:57,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:18:57,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:18:57,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:18:57,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:18:56" (1/1) ... [2022-10-15 21:18:57,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:18:56" (1/1) ... [2022-10-15 21:18:57,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:18:56" (1/1) ... [2022-10-15 21:18:57,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:18:56" (1/1) ... [2022-10-15 21:18:57,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:18:56" (1/1) ... [2022-10-15 21:18:57,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:18:56" (1/1) ... [2022-10-15 21:18:57,314 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:18:56" (1/1) ... [2022-10-15 21:18:57,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:18:56" (1/1) ... [2022-10-15 21:18:57,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:18:57,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:18:57,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:18:57,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:18:57,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:18:56" (1/1) ... [2022-10-15 21:18:57,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:18:57,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:18:57,411 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 21:18:57,436 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 21:18:57,477 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-10-15 21:18:57,477 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-10-15 21:18:57,477 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-10-15 21:18:57,477 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-10-15 21:18:57,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:18:57,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:18:57,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:18:57,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:18:57,478 INFO L130 BoogieDeclarations]: Found specification of procedure write_mii_word [2022-10-15 21:18:57,478 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mii_word [2022-10-15 21:18:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2022-10-15 21:18:57,479 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2022-10-15 21:18:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:18:57,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:18:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-10-15 21:18:57,479 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-10-15 21:18:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure set_carrier [2022-10-15 21:18:57,480 INFO L138 BoogieDeclarations]: Found implementation of procedure set_carrier [2022-10-15 21:18:57,480 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-10-15 21:18:57,480 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-10-15 21:18:57,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:18:57,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:18:57,480 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2022-10-15 21:18:57,480 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2022-10-15 21:18:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure read_mii_word [2022-10-15 21:18:57,481 INFO L138 BoogieDeclarations]: Found implementation of procedure read_mii_word [2022-10-15 21:18:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:18:57,481 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:18:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:18:57,481 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:18:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-10-15 21:18:57,481 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-10-15 21:18:57,482 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-10-15 21:18:57,482 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-10-15 21:18:57,482 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-10-15 21:18:57,482 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-10-15 21:18:57,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:18:57,482 INFO L130 BoogieDeclarations]: Found specification of procedure read_eprom_word [2022-10-15 21:18:57,482 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eprom_word [2022-10-15 21:18:57,483 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-10-15 21:18:57,483 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-10-15 21:18:57,483 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-10-15 21:18:57,483 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-10-15 21:18:57,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:18:57,483 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-10-15 21:18:57,483 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-10-15 21:18:57,483 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-10-15 21:18:57,484 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-10-15 21:18:57,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-10-15 21:18:57,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:18:57,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:18:57,484 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-10-15 21:18:57,484 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-10-15 21:18:57,485 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_tx_timeout [2022-10-15 21:18:57,485 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_tx_timeout [2022-10-15 21:18:57,485 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-10-15 21:18:57,485 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-10-15 21:18:57,485 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-15 21:18:57,485 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-15 21:18:57,485 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_dec_workqueue [2022-10-15 21:18:57,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_dec_workqueue [2022-10-15 21:18:57,486 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-10-15 21:18:57,486 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-10-15 21:18:57,486 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-15 21:18:57,486 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-15 21:18:57,486 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urbs [2022-10-15 21:18:57,486 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urbs [2022-10-15 21:18:57,487 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_disconnect [2022-10-15 21:18:57,487 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_disconnect [2022-10-15 21:18:57,487 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-10-15 21:18:57,487 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-10-15 21:18:57,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:18:57,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:18:57,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:18:57,488 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-10-15 21:18:57,488 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-10-15 21:18:57,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:18:57,488 INFO L130 BoogieDeclarations]: Found specification of procedure __mii_op [2022-10-15 21:18:57,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __mii_op [2022-10-15 21:18:57,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:18:57,489 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-15 21:18:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-15 21:18:57,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:18:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:18:57,489 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_set_wol [2022-10-15 21:18:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_set_wol [2022-10-15 21:18:57,490 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb_ip_align [2022-10-15 21:18:57,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb_ip_align [2022-10-15 21:18:57,490 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-15 21:18:57,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-15 21:18:57,490 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-15 21:18:57,490 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-15 21:18:57,490 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-15 21:18:57,491 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-15 21:18:57,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-15 21:18:57,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-15 21:18:57,491 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:18:57,491 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:18:57,491 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-10-15 21:18:57,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-10-15 21:18:57,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:18:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:18:57,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:18:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_set_multicast [2022-10-15 21:18:57,492 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_set_multicast [2022-10-15 21:18:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure set_register [2022-10-15 21:18:57,492 INFO L138 BoogieDeclarations]: Found implementation of procedure set_register [2022-10-15 21:18:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:18:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_ioctl [2022-10-15 21:18:57,493 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_ioctl [2022-10-15 21:18:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2022-10-15 21:18:57,493 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2022-10-15 21:18:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:18:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:18:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-10-15 21:18:57,493 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-10-15 21:18:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-10-15 21:18:57,494 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-10-15 21:18:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-10-15 21:18:57,494 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-10-15 21:18:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure get_registers [2022-10-15 21:18:57,494 INFO L138 BoogieDeclarations]: Found implementation of procedure get_registers [2022-10-15 21:18:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_netdev_stats [2022-10-15 21:18:57,495 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_netdev_stats [2022-10-15 21:18:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-10-15 21:18:57,495 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-10-15 21:18:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:18:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure set_registers [2022-10-15 21:18:57,495 INFO L138 BoogieDeclarations]: Found implementation of procedure set_registers [2022-10-15 21:18:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:18:57,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:18:58,268 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:18:58,273 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:18:58,540 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:19:05,596 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:19:05,615 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:19:05,615 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:19:05,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:19:05 BoogieIcfgContainer [2022-10-15 21:19:05,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:19:05,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:19:05,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:19:05,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:19:05,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:18:53" (1/3) ... [2022-10-15 21:19:05,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa95432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:19:05, skipping insertion in model container [2022-10-15 21:19:05,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:18:56" (2/3) ... [2022-10-15 21:19:05,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa95432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:19:05, skipping insertion in model container [2022-10-15 21:19:05,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:19:05" (3/3) ... [2022-10-15 21:19:05,631 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--pegasus.ko-entry_point.cil.out.i [2022-10-15 21:19:05,652 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:19:05,653 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2022-10-15 21:19:05,740 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:19:05,750 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;@31fec278, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:19:05,750 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2022-10-15 21:19:05,761 INFO L276 IsEmpty]: Start isEmpty. Operand has 1222 states, 873 states have (on average 1.395189003436426) internal successors, (1218), 932 states have internal predecessors, (1218), 242 states have call successors, (242), 57 states have call predecessors, (242), 56 states have return successors, (237), 237 states have call predecessors, (237), 237 states have call successors, (237) [2022-10-15 21:19:05,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-15 21:19:05,774 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:19:05,775 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 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 21:19:05,776 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__mii_opErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __mii_opErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, read_eprom_wordErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2022-10-15 21:19:05,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:19:05,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1579235010, now seen corresponding path program 1 times [2022-10-15 21:19:05,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:19:05,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679683813] [2022-10-15 21:19:05,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:19:05,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:19:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:06,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:19:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:06,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:19:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:06,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:19:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:06,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:19:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:06,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:19:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:06,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-15 21:19:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:06,874 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-15 21:19:06,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:19:06,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679683813] [2022-10-15 21:19:06,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679683813] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:19:06,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:19:06,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:19:06,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231397020] [2022-10-15 21:19:06,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:19:06,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:19:06,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:19:06,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:19:06,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:19:06,924 INFO L87 Difference]: Start difference. First operand has 1222 states, 873 states have (on average 1.395189003436426) internal successors, (1218), 932 states have internal predecessors, (1218), 242 states have call successors, (242), 57 states have call predecessors, (242), 56 states have return successors, (237), 237 states have call predecessors, (237), 237 states have call successors, (237) Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 21:19:13,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:19:13,564 INFO L93 Difference]: Finished difference Result 3225 states and 4578 transitions. [2022-10-15 21:19:13,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:19:13,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2022-10-15 21:19:13,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:19:13,601 INFO L225 Difference]: With dead ends: 3225 [2022-10-15 21:19:13,602 INFO L226 Difference]: Without dead ends: 1977 [2022-10-15 21:19:13,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 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 21:19:13,619 INFO L413 NwaCegarLoop]: 1778 mSDtfsCounter, 1502 mSDsluCounter, 3125 mSDsCounter, 0 mSdLazyCounter, 1519 mSolverCounterSat, 923 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1609 SdHoareTripleChecker+Valid, 4903 SdHoareTripleChecker+Invalid, 2442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 923 IncrementalHoareTripleChecker+Valid, 1519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:19:13,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1609 Valid, 4903 Invalid, 2442 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [923 Valid, 1519 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-10-15 21:19:13,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2022-10-15 21:19:13,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 1844. [2022-10-15 21:19:13,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1337 states have (on average 1.3717277486910995) internal successors, (1834), 1385 states have internal predecessors, (1834), 367 states have call successors, (367), 96 states have call predecessors, (367), 96 states have return successors, (367), 366 states have call predecessors, (367), 367 states have call successors, (367) [2022-10-15 21:19:13,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2568 transitions. [2022-10-15 21:19:13,901 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2568 transitions. Word has length 46 [2022-10-15 21:19:13,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:19:13,902 INFO L495 AbstractCegarLoop]: Abstraction has 1844 states and 2568 transitions. [2022-10-15 21:19:13,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 21:19:13,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2568 transitions. [2022-10-15 21:19:13,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-15 21:19:13,919 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:19:13,920 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:19:13,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:19:13,920 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [__mii_opErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __mii_opErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, read_eprom_wordErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2022-10-15 21:19:13,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:19:13,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1286895328, now seen corresponding path program 1 times [2022-10-15 21:19:13,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:19:13,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123567434] [2022-10-15 21:19:13,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:19:13,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:19:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:14,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:19:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:14,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:19:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:14,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:19:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:14,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:19:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:14,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:19:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:14,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-15 21:19:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:14,647 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-15 21:19:14,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:19:14,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123567434] [2022-10-15 21:19:14,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123567434] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:19:14,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:19:14,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:19:14,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249141273] [2022-10-15 21:19:14,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:19:14,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:19:14,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:19:14,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:19:14,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:19:14,652 INFO L87 Difference]: Start difference. First operand 1844 states and 2568 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 21:19:17,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:19:23,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:19:25,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:19:25,238 INFO L93 Difference]: Finished difference Result 4759 states and 6635 transitions. [2022-10-15 21:19:25,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:19:25,239 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), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 60 [2022-10-15 21:19:25,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:19:25,263 INFO L225 Difference]: With dead ends: 4759 [2022-10-15 21:19:25,264 INFO L226 Difference]: Without dead ends: 2941 [2022-10-15 21:19:25,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:19:25,275 INFO L413 NwaCegarLoop]: 1704 mSDtfsCounter, 1617 mSDsluCounter, 2970 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 915 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1725 SdHoareTripleChecker+Valid, 4674 SdHoareTripleChecker+Invalid, 2446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 915 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:19:25,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1725 Valid, 4674 Invalid, 2446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [915 Valid, 1529 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2022-10-15 21:19:25,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2022-10-15 21:19:25,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 2747. [2022-10-15 21:19:25,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2747 states, 2024 states have (on average 1.3720355731225296) internal successors, (2777), 2077 states have internal predecessors, (2777), 529 states have call successors, (529), 150 states have call predecessors, (529), 150 states have return successors, (531), 524 states have call predecessors, (531), 529 states have call successors, (531) [2022-10-15 21:19:25,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2747 states to 2747 states and 3837 transitions. [2022-10-15 21:19:25,479 INFO L78 Accepts]: Start accepts. Automaton has 2747 states and 3837 transitions. Word has length 60 [2022-10-15 21:19:25,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:19:25,481 INFO L495 AbstractCegarLoop]: Abstraction has 2747 states and 3837 transitions. [2022-10-15 21:19:25,481 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), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 21:19:25,481 INFO L276 IsEmpty]: Start isEmpty. Operand 2747 states and 3837 transitions. [2022-10-15 21:19:25,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-15 21:19:25,486 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:19:25,487 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:19:25,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:19:25,488 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__mii_opErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __mii_opErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, read_eprom_wordErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2022-10-15 21:19:25,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:19:25,489 INFO L85 PathProgramCache]: Analyzing trace with hash 609929902, now seen corresponding path program 1 times [2022-10-15 21:19:25,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:19:25,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558999884] [2022-10-15 21:19:25,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:19:25,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:19:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:26,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:19:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:26,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:19:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:26,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:19:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:26,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:19:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:26,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:19:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:26,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-15 21:19:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:26,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:19:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:26,208 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-15 21:19:26,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:19:26,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558999884] [2022-10-15 21:19:26,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558999884] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:19:26,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:19:26,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:19:26,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414682384] [2022-10-15 21:19:26,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:19:26,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:19:26,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:19:26,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:19:26,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:19:26,218 INFO L87 Difference]: Start difference. First operand 2747 states and 3837 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 21:19:29,795 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 21:19:33,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:19:37,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:19:37,158 INFO L93 Difference]: Finished difference Result 8177 states and 11481 transitions. [2022-10-15 21:19:37,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:19:37,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2022-10-15 21:19:37,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:19:37,199 INFO L225 Difference]: With dead ends: 8177 [2022-10-15 21:19:37,200 INFO L226 Difference]: Without dead ends: 5456 [2022-10-15 21:19:37,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:19:37,214 INFO L413 NwaCegarLoop]: 1787 mSDtfsCounter, 2108 mSDsluCounter, 3076 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 1116 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2265 SdHoareTripleChecker+Valid, 4863 SdHoareTripleChecker+Invalid, 2746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1116 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:19:37,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2265 Valid, 4863 Invalid, 2746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1116 Valid, 1629 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2022-10-15 21:19:37,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5456 states. [2022-10-15 21:19:37,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5456 to 5109. [2022-10-15 21:19:37,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5109 states, 3784 states have (on average 1.3723572938689217) internal successors, (5193), 3847 states have internal predecessors, (5193), 994 states have call successors, (994), 287 states have call predecessors, (994), 287 states have return successors, (998), 984 states have call predecessors, (998), 994 states have call successors, (998) [2022-10-15 21:19:37,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5109 states to 5109 states and 7185 transitions. [2022-10-15 21:19:37,515 INFO L78 Accepts]: Start accepts. Automaton has 5109 states and 7185 transitions. Word has length 66 [2022-10-15 21:19:37,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:19:37,518 INFO L495 AbstractCegarLoop]: Abstraction has 5109 states and 7185 transitions. [2022-10-15 21:19:37,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 21:19:37,518 INFO L276 IsEmpty]: Start isEmpty. Operand 5109 states and 7185 transitions. [2022-10-15 21:19:37,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-15 21:19:37,519 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:19:37,520 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-10-15 21:19:37,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:19:37,522 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__mii_opErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __mii_opErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, read_eprom_wordErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2022-10-15 21:19:37,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:19:37,522 INFO L85 PathProgramCache]: Analyzing trace with hash 744469603, now seen corresponding path program 1 times [2022-10-15 21:19:37,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:19:37,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212644223] [2022-10-15 21:19:37,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:19:37,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:19:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:38,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:19:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:38,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:19:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:38,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:19:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:38,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:19:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:38,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:19:38,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:38,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-15 21:19:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:38,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:19:38,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:38,198 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-15 21:19:38,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:19:38,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212644223] [2022-10-15 21:19:38,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212644223] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:19:38,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:19:38,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:19:38,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273787321] [2022-10-15 21:19:38,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:19:38,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:19:38,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:19:38,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:19:38,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:19:38,204 INFO L87 Difference]: Start difference. First operand 5109 states and 7185 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-15 21:19:41,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:19:42,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []