/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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--video--udlfb.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:08:28,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:08:28,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:08:28,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:08:28,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:08:28,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:08:28,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:08:28,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:08:28,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:08:28,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:08:28,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:08:28,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:08:28,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:08:28,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:08:28,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:08:28,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:08:28,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:08:28,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:08:28,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:08:28,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:08:28,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:08:28,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:08:28,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:08:28,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:08:28,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:08:28,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:08:28,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:08:28,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:08:28,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:08:28,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:08:28,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:08:28,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:08:28,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:08:28,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:08:28,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:08:28,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:08:28,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:08:28,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:08:28,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:08:28,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:08:28,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:08:28,595 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 21:08:28,630 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:08:28,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:08:28,631 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:08:28,631 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:08:28,632 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:08:28,632 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:08:28,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:08:28,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:08:28,636 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:08:28,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:08:28,637 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:08:28,637 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:08:28,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:08:28,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:08:28,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:08:28,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:08:28,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:08:28,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:08:28,639 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:08:28,639 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:08:28,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:08:28,639 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:08:28,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:08:28,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:08:28,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:08:28,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:08:28,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:08:28,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:08:28,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:08:28,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:08:28,642 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:08:28,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:08:28,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:08:28,643 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:08:29,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:08:29,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:08:29,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:08:29,171 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:08:29,172 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:08:29,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--video--udlfb.ko-main.cil.out.i [2022-10-15 21:08:29,267 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5a7f6c5a/325cc37c2999489caac58b25d22c3f78/FLAG1928ff9d8 [2022-10-15 21:08:30,483 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:08:30,484 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--video--udlfb.ko-main.cil.out.i [2022-10-15 21:08:30,546 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5a7f6c5a/325cc37c2999489caac58b25d22c3f78/FLAG1928ff9d8 [2022-10-15 21:08:30,788 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5a7f6c5a/325cc37c2999489caac58b25d22c3f78 [2022-10-15 21:08:30,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:08:30,798 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:08:30,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:08:30,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:08:30,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:08:30,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:08:30" (1/1) ... [2022-10-15 21:08:30,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180d35bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:30, skipping insertion in model container [2022-10-15 21:08:30,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:08:30" (1/1) ... [2022-10-15 21:08:30,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:08:30,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:08:33,012 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--video--udlfb.ko-main.cil.out.i[199878,199891] [2022-10-15 21:08:33,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:08:33,289 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:08:33,877 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--video--udlfb.ko-main.cil.out.i[199878,199891] [2022-10-15 21:08:33,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:08:34,134 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:08:34,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:34 WrapperNode [2022-10-15 21:08:34,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:08:34,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:08:34,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:08:34,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:08:34,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:34" (1/1) ... [2022-10-15 21:08:34,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:34" (1/1) ... [2022-10-15 21:08:35,147 INFO L138 Inliner]: procedures = 257, calls = 1499, calls flagged for inlining = 108, calls inlined = 98, statements flattened = 3852 [2022-10-15 21:08:35,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:08:35,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:08:35,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:08:35,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:08:35,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:34" (1/1) ... [2022-10-15 21:08:35,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:34" (1/1) ... [2022-10-15 21:08:35,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:34" (1/1) ... [2022-10-15 21:08:35,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:34" (1/1) ... [2022-10-15 21:08:36,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:34" (1/1) ... [2022-10-15 21:08:36,244 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:34" (1/1) ... [2022-10-15 21:08:36,331 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:34" (1/1) ... [2022-10-15 21:08:36,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:34" (1/1) ... [2022-10-15 21:08:36,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:08:36,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:08:36,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:08:36,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:08:36,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:34" (1/1) ... [2022-10-15 21:08:36,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:08:36,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:08:36,538 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 21:08:36,549 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 21:08:36,610 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-10-15 21:08:36,610 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-10-15 21:08:36,610 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_fillrect [2022-10-15 21:08:36,610 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_fillrect [2022-10-15 21:08:36,610 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-10-15 21:08:36,611 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-10-15 21:08:36,611 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_submit_urb [2022-10-15 21:08:36,611 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_submit_urb [2022-10-15 21:08:36,611 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_urb_completion [2022-10-15 21:08:36,611 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_urb_completion [2022-10-15 21:08:36,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:08:36,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:08:36,612 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_mmap [2022-10-15 21:08:36,612 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_mmap [2022-10-15 21:08:36,612 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer_work [2022-10-15 21:08:36,612 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer_work [2022-10-15 21:08:36,613 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_unlock [2022-10-15 21:08:36,613 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_unlock [2022-10-15 21:08:36,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:08:36,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:08:36,613 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_check_var [2022-10-15 21:08:36,613 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_check_var [2022-10-15 21:08:36,613 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_is_valid_mode [2022-10-15 21:08:36,614 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_is_valid_mode [2022-10-15 21:08:36,614 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_lfsr16 [2022-10-15 21:08:36,614 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_lfsr16 [2022-10-15 21:08:36,614 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modelist [2022-10-15 21:08:36,614 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modelist [2022-10-15 21:08:36,614 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-10-15 21:08:36,614 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-10-15 21:08:36,615 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-15 21:08:36,615 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-15 21:08:36,615 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_setcolreg [2022-10-15 21:08:36,615 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_setcolreg [2022-10-15 21:08:36,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:08:36,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:08:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-10-15 21:08:36,616 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-10-15 21:08:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:08:36,616 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:08:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_release [2022-10-15 21:08:36,616 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_release [2022-10-15 21:08:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_get_urb [2022-10-15 21:08:36,617 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_get_urb [2022-10-15 21:08:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_video_mode [2022-10-15 21:08:36,617 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_video_mode [2022-10-15 21:08:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-15 21:08:36,617 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-15 21:08:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-15 21:08:36,618 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-15 21:08:36,618 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_blank [2022-10-15 21:08:36,618 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_blank [2022-10-15 21:08:36,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:08:36,618 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-15 21:08:36,618 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-15 21:08:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-15 21:08:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure get_cycles [2022-10-15 21:08:36,619 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cycles [2022-10-15 21:08:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure up [2022-10-15 21:08:36,619 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2022-10-15 21:08:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:08:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_copyarea [2022-10-15 21:08:36,620 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_copyarea [2022-10-15 21:08:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-15 21:08:36,620 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-15 21:08:36,621 INFO L130 BoogieDeclarations]: Found specification of procedure fb_add_videomode [2022-10-15 21:08:36,621 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_add_videomode [2022-10-15 21:08:36,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:08:36,621 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-10-15 21:08:36,621 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-10-15 21:08:36,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:08:36,621 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-15 21:08:36,622 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-15 21:08:36,622 INFO L130 BoogieDeclarations]: Found specification of procedure fb_edid_to_monspecs [2022-10-15 21:08:36,622 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_edid_to_monspecs [2022-10-15 21:08:36,622 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-15 21:08:36,622 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-15 21:08:36,622 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-15 21:08:36,622 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-15 21:08:36,623 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-15 21:08:36,623 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-15 21:08:36,623 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_setup_modes [2022-10-15 21:08:36,623 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_setup_modes [2022-10-15 21:08:36,623 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-10-15 21:08:36,623 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-10-15 21:08:36,624 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-10-15 21:08:36,624 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-10-15 21:08:36,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:08:36,624 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-15 21:08:36,624 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-15 21:08:36,624 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_lock [2022-10-15 21:08:36,624 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_lock [2022-10-15 21:08:36,625 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-10-15 21:08:36,625 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-10-15 21:08:36,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:08:36,625 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-10-15 21:08:36,625 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-10-15 21:08:36,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:08:36,626 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_ioctl [2022-10-15 21:08:36,626 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_ioctl [2022-10-15 21:08:36,626 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer [2022-10-15 21:08:36,626 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer [2022-10-15 21:08:36,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:08:36,626 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:08:36,626 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_var_color_format [2022-10-15 21:08:36,627 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_var_color_format [2022-10-15 21:08:36,627 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-15 21:08:36,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-15 21:08:36,627 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:08:36,627 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:08:36,627 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-10-15 21:08:36,628 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-10-15 21:08:36,628 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-10-15 21:08:36,628 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-10-15 21:08:36,628 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_handle_damage [2022-10-15 21:08:36,628 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_handle_damage [2022-10-15 21:08:36,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:08:36,629 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_render_hline [2022-10-15 21:08:36,629 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_render_hline [2022-10-15 21:08:36,629 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_usb_disconnect [2022-10-15 21:08:36,629 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_usb_disconnect [2022-10-15 21:08:36,629 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-10-15 21:08:36,629 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-10-15 21:08:36,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:08:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:08:36,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:08:36,630 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_blanking [2022-10-15 21:08:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_blanking [2022-10-15 21:08:36,630 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_16 [2022-10-15 21:08:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_16 [2022-10-15 21:08:36,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:08:36,631 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_imageblit [2022-10-15 21:08:36,631 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_imageblit [2022-10-15 21:08:36,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:08:36,631 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:08:36,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:08:36,631 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_open [2022-10-15 21:08:36,632 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_open [2022-10-15 21:08:36,632 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register [2022-10-15 21:08:36,632 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register [2022-10-15 21:08:36,632 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-10-15 21:08:36,632 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-10-15 21:08:36,632 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-10-15 21:08:36,633 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-10-15 21:08:36,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_fb_info [2022-10-15 21:08:36,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_fb_info [2022-10-15 21:08:36,633 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-10-15 21:08:36,633 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-10-15 21:08:36,633 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_init_framebuffer_work [2022-10-15 21:08:36,633 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_init_framebuffer_work [2022-10-15 21:08:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-10-15 21:08:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-10-15 21:08:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-15 21:08:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-15 21:08:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_set_par [2022-10-15 21:08:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_set_par [2022-10-15 21:08:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-10-15 21:08:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-10-15 21:08:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:08:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-10-15 21:08:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-10-15 21:08:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:08:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:08:37,454 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:08:37,458 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:08:50,798 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:08:50,836 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:08:50,837 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:08:50,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:08:50 BoogieIcfgContainer [2022-10-15 21:08:50,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:08:50,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:08:50,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:08:50,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:08:50,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:08:30" (1/3) ... [2022-10-15 21:08:50,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6023d000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:08:50, skipping insertion in model container [2022-10-15 21:08:50,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:08:34" (2/3) ... [2022-10-15 21:08:50,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6023d000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:08:50, skipping insertion in model container [2022-10-15 21:08:50,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:08:50" (3/3) ... [2022-10-15 21:08:50,863 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--video--udlfb.ko-main.cil.out.i [2022-10-15 21:08:50,894 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:08:50,894 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 152 error locations. [2022-10-15 21:08:51,044 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:08:51,058 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;@2e144f2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:08:51,060 INFO L358 AbstractCegarLoop]: Starting to check reachability of 152 error locations. [2022-10-15 21:08:51,074 INFO L276 IsEmpty]: Start isEmpty. Operand has 1434 states, 969 states have (on average 1.4375644994840042) internal successors, (1393), 1142 states have internal predecessors, (1393), 239 states have call successors, (239), 73 states have call predecessors, (239), 73 states have return successors, (239), 235 states have call predecessors, (239), 239 states have call successors, (239) [2022-10-15 21:08:51,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-15 21:08:51,090 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:08:51,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:08:51,092 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [dlfb_ops_blankErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dlfb_ops_blankErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, dlfb_urb_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 149 more)] === [2022-10-15 21:08:51,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:08:51,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1483269085, now seen corresponding path program 1 times [2022-10-15 21:08:51,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:08:51,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828840676] [2022-10-15 21:08:51,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:08:51,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:08:51,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:51,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:08:51,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:08:51,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828840676] [2022-10-15 21:08:51,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828840676] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:08:51,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:08:51,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:08:51,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491886192] [2022-10-15 21:08:51,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:08:51,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:08:51,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:08:51,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:08:51,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:08:51,822 INFO L87 Difference]: Start difference. First operand has 1434 states, 969 states have (on average 1.4375644994840042) internal successors, (1393), 1142 states have internal predecessors, (1393), 239 states have call successors, (239), 73 states have call predecessors, (239), 73 states have return successors, (239), 235 states have call predecessors, (239), 239 states have call successors, (239) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:08:52,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:08:52,399 INFO L93 Difference]: Finished difference Result 4207 states and 5680 transitions. [2022-10-15 21:08:52,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:08:52,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-15 21:08:52,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:08:52,469 INFO L225 Difference]: With dead ends: 4207 [2022-10-15 21:08:52,470 INFO L226 Difference]: Without dead ends: 2728 [2022-10-15 21:08:52,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:08:52,501 INFO L413 NwaCegarLoop]: 2276 mSDtfsCounter, 1758 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1758 SdHoareTripleChecker+Valid, 4088 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:08:52,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1758 Valid, 4088 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:08:52,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2728 states. [2022-10-15 21:08:52,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2728 to 2602. [2022-10-15 21:08:52,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2602 states, 1869 states have (on average 1.3948635634028892) internal successors, (2607), 2026 states have internal predecessors, (2607), 459 states have call successors, (459), 144 states have call predecessors, (459), 144 states have return successors, (459), 451 states have call predecessors, (459), 459 states have call successors, (459) [2022-10-15 21:08:52,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2602 states to 2602 states and 3525 transitions. [2022-10-15 21:08:52,807 INFO L78 Accepts]: Start accepts. Automaton has 2602 states and 3525 transitions. Word has length 15 [2022-10-15 21:08:52,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:08:52,808 INFO L495 AbstractCegarLoop]: Abstraction has 2602 states and 3525 transitions. [2022-10-15 21:08:52,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:08:52,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2602 states and 3525 transitions. [2022-10-15 21:08:52,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 21:08:52,813 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:08:52,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:08:52,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:08:52,814 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting dlfb_ops_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [dlfb_ops_blankErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dlfb_ops_blankErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, dlfb_urb_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 149 more)] === [2022-10-15 21:08:52,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:08:52,815 INFO L85 PathProgramCache]: Analyzing trace with hash -432574060, now seen corresponding path program 1 times [2022-10-15 21:08:52,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:08:52,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555991871] [2022-10-15 21:08:52,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:08:52,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:08:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:53,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:08:53,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:08:53,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555991871] [2022-10-15 21:08:53,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555991871] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:08:53,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:08:53,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:08:53,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804046869] [2022-10-15 21:08:53,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:08:53,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:08:53,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:08:53,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:08:53,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:08:53,035 INFO L87 Difference]: Start difference. First operand 2602 states and 3525 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:08:53,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:08:53,579 INFO L93 Difference]: Finished difference Result 7290 states and 9823 transitions. [2022-10-15 21:08:53,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:08:53,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-15 21:08:53,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:08:53,631 INFO L225 Difference]: With dead ends: 7290 [2022-10-15 21:08:53,632 INFO L226 Difference]: Without dead ends: 4691 [2022-10-15 21:08:53,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:08:53,657 INFO L413 NwaCegarLoop]: 2749 mSDtfsCounter, 1415 mSDsluCounter, 1712 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1415 SdHoareTripleChecker+Valid, 4461 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:08:53,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1415 Valid, 4461 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:08:53,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4691 states. [2022-10-15 21:08:54,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4691 to 4573. [2022-10-15 21:08:54,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4573 states, 3353 states have (on average 1.3871160155084998) internal successors, (4651), 3538 states have internal predecessors, (4651), 824 states have call successors, (824), 266 states have call predecessors, (824), 266 states have return successors, (824), 808 states have call predecessors, (824), 824 states have call successors, (824) [2022-10-15 21:08:54,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4573 states to 4573 states and 6299 transitions. [2022-10-15 21:08:54,100 INFO L78 Accepts]: Start accepts. Automaton has 4573 states and 6299 transitions. Word has length 19 [2022-10-15 21:08:54,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:08:54,100 INFO L495 AbstractCegarLoop]: Abstraction has 4573 states and 6299 transitions. [2022-10-15 21:08:54,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:08:54,101 INFO L276 IsEmpty]: Start isEmpty. Operand 4573 states and 6299 transitions. [2022-10-15 21:08:54,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-15 21:08:54,104 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:08:54,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:08:54,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:08:54,105 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting dlfb_usb_disconnectErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [dlfb_ops_blankErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dlfb_ops_blankErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, dlfb_urb_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 149 more)] === [2022-10-15 21:08:54,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:08:54,106 INFO L85 PathProgramCache]: Analyzing trace with hash -342074764, now seen corresponding path program 1 times [2022-10-15 21:08:54,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:08:54,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592535253] [2022-10-15 21:08:54,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:08:54,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:08:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:54,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 21:08:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:54,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:08:54,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:54,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 21:08:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:08:54,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:08:54,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:08:54,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592535253] [2022-10-15 21:08:54,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592535253] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:08:54,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:08:54,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:08:54,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790676202] [2022-10-15 21:08:54,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:08:54,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:08:54,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:08:54,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:08:54,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:08:54,445 INFO L87 Difference]: Start difference. First operand 4573 states and 6299 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-15 21:08:57,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:09:04,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:09:11,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:09:13,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:09:15,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:09:17,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:17,028 INFO L93 Difference]: Finished difference Result 13671 states and 19053 transitions. [2022-10-15 21:09:17,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:09:17,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2022-10-15 21:09:17,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:17,130 INFO L225 Difference]: With dead ends: 13671 [2022-10-15 21:09:17,131 INFO L226 Difference]: Without dead ends: 9101 [2022-10-15 21:09:17,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:09:17,177 INFO L413 NwaCegarLoop]: 2878 mSDtfsCounter, 2479 mSDsluCounter, 4225 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 1201 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2667 SdHoareTripleChecker+Valid, 7103 SdHoareTripleChecker+Invalid, 3671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1201 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:17,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2667 Valid, 7103 Invalid, 3671 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1201 Valid, 2467 Invalid, 3 Unknown, 0 Unchecked, 21.5s Time] [2022-10-15 21:09:17,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9101 states. [2022-10-15 21:09:17,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9101 to 7497. [2022-10-15 21:09:18,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7497 states, 5591 states have (on average 1.3920586657127527) internal successors, (7783), 5802 states have internal predecessors, (7783), 1327 states have call successors, (1327), 449 states have call predecessors, (1327), 449 states have return successors, (1327), 1305 states have call predecessors, (1327), 1327 states have call successors, (1327) [2022-10-15 21:09:18,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7497 states to 7497 states and 10437 transitions. [2022-10-15 21:09:18,083 INFO L78 Accepts]: Start accepts. Automaton has 7497 states and 10437 transitions. Word has length 30 [2022-10-15 21:09:18,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:18,083 INFO L495 AbstractCegarLoop]: Abstraction has 7497 states and 10437 transitions. [2022-10-15 21:09:18,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-15 21:09:18,084 INFO L276 IsEmpty]: Start isEmpty. Operand 7497 states and 10437 transitions. [2022-10-15 21:09:18,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-15 21:09:18,088 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:18,088 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 21:09:18,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:09:18,089 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [dlfb_ops_blankErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dlfb_ops_blankErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, dlfb_urb_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 149 more)] === [2022-10-15 21:09:18,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:18,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1222439353, now seen corresponding path program 1 times [2022-10-15 21:09:18,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:18,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601777469] [2022-10-15 21:09:18,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:18,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:18,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:09:18,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:18,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601777469] [2022-10-15 21:09:18,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601777469] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:18,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:18,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:09:18,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091689078] [2022-10-15 21:09:18,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:18,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:09:18,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:18,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:09:18,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:09:18,443 INFO L87 Difference]: Start difference. First operand 7497 states and 10437 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:09:19,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:19,208 INFO L93 Difference]: Finished difference Result 18451 states and 25603 transitions. [2022-10-15 21:09:19,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:09:19,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-15 21:09:19,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:19,349 INFO L225 Difference]: With dead ends: 18451 [2022-10-15 21:09:19,349 INFO L226 Difference]: Without dead ends: 10957 [2022-10-15 21:09:19,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:09:19,418 INFO L413 NwaCegarLoop]: 2553 mSDtfsCounter, 1737 mSDsluCounter, 1775 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1737 SdHoareTripleChecker+Valid, 4328 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:19,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1737 Valid, 4328 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:09:19,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10957 states. [2022-10-15 21:09:20,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10957 to 10831. [2022-10-15 21:09:20,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10831 states, 8119 states have (on average 1.3904421726813647) internal successors, (11289), 8369 states have internal predecessors, (11289), 1930 states have call successors, (1930), 652 states have call predecessors, (1930), 652 states have return successors, (1930), 1897 states have call predecessors, (1930), 1930 states have call successors, (1930) [2022-10-15 21:09:20,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10831 states to 10831 states and 15149 transitions. [2022-10-15 21:09:20,448 INFO L78 Accepts]: Start accepts. Automaton has 10831 states and 15149 transitions. Word has length 27 [2022-10-15 21:09:20,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:20,449 INFO L495 AbstractCegarLoop]: Abstraction has 10831 states and 15149 transitions. [2022-10-15 21:09:20,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:09:20,449 INFO L276 IsEmpty]: Start isEmpty. Operand 10831 states and 15149 transitions. [2022-10-15 21:09:20,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-15 21:09:20,452 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:20,452 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 21:09:20,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:09:20,453 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [dlfb_ops_blankErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dlfb_ops_blankErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, dlfb_urb_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 149 more)] === [2022-10-15 21:09:20,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:20,453 INFO L85 PathProgramCache]: Analyzing trace with hash 772449663, now seen corresponding path program 1 times [2022-10-15 21:09:20,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:20,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016967555] [2022-10-15 21:09:20,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:20,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:20,972 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 21:09:20,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:20,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016967555] [2022-10-15 21:09:20,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016967555] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:20,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:20,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:09:20,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871845896] [2022-10-15 21:09:20,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:20,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:09:20,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:20,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:09:20,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:09:20,976 INFO L87 Difference]: Start difference. First operand 10831 states and 15149 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:09:21,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:21,939 INFO L93 Difference]: Finished difference Result 15289 states and 21263 transitions. [2022-10-15 21:09:21,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:09:21,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-15 21:09:21,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:22,052 INFO L225 Difference]: With dead ends: 15289 [2022-10-15 21:09:22,052 INFO L226 Difference]: Without dead ends: 15279 [2022-10-15 21:09:22,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:09:22,073 INFO L413 NwaCegarLoop]: 2247 mSDtfsCounter, 1714 mSDsluCounter, 1768 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1714 SdHoareTripleChecker+Valid, 4015 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:22,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1714 Valid, 4015 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:09:22,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15279 states.