/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 12:50:22,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 12:50:22,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 12:50:22,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 12:50:22,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 12:50:22,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 12:50:22,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 12:50:22,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 12:50:22,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 12:50:22,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 12:50:22,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 12:50:22,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 12:50:22,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 12:50:22,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 12:50:22,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 12:50:22,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 12:50:22,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 12:50:22,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 12:50:22,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 12:50:22,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 12:50:22,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 12:50:22,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 12:50:22,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 12:50:22,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 12:50:22,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 12:50:22,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 12:50:22,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 12:50:22,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 12:50:22,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 12:50:22,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 12:50:22,429 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 12:50:22,430 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 12:50:22,431 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 12:50:22,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 12:50:22,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 12:50:22,433 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 12:50:22,434 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 12:50:22,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 12:50:22,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 12:50:22,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 12:50:22,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 12:50:22,440 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 12:50:22,489 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 12:50:22,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 12:50:22,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 12:50:22,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 12:50:22,492 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 12:50:22,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 12:50:22,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 12:50:22,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 12:50:22,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 12:50:22,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 12:50:22,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 12:50:22,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 12:50:22,495 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 12:50:22,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 12:50:22,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 12:50:22,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 12:50:22,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 12:50:22,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 12:50:22,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 12:50:22,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 12:50:22,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 12:50:22,497 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 12:50:22,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 12:50:22,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 12:50:22,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 12:50:22,497 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 12:50:22,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 12:50:22,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 12:50:22,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 12:50:22,938 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 12:50:22,939 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 12:50:22,940 INFO L432 ainManager$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--gpu--drm--ast--ast.ko-main.cil.out.i [2020-12-22 12:50:23,026 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8073e437a/e4c338e4bc5e4409b5c3ee50e2d3c521/FLAG6be3a328a [2020-12-22 12:50:24,136 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 12:50:24,137 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i [2020-12-22 12:50:24,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8073e437a/e4c338e4bc5e4409b5c3ee50e2d3c521/FLAG6be3a328a [2020-12-22 12:50:24,440 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8073e437a/e4c338e4bc5e4409b5c3ee50e2d3c521 [2020-12-22 12:50:24,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 12:50:24,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 12:50:24,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 12:50:24,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 12:50:24,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 12:50:24,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:50:24" (1/1) ... [2020-12-22 12:50:24,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15f0af80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:50:24, skipping insertion in model container [2020-12-22 12:50:24,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:50:24" (1/1) ... [2020-12-22 12:50:24,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 12:50:24,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 12:50:28,236 WARN L226 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--gpu--drm--ast--ast.ko-main.cil.out.i[353005,353018] [2020-12-22 12:50:28,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 12:50:28,590 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 12:50:29,125 WARN L226 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--gpu--drm--ast--ast.ko-main.cil.out.i[353005,353018] [2020-12-22 12:50:29,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 12:50:30,331 INFO L208 MainTranslator]: Completed translation [2020-12-22 12:50:30,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:50:30 WrapperNode [2020-12-22 12:50:30,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 12:50:30,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 12:50:30,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 12:50:30,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 12:50:30,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:50:30" (1/1) ... [2020-12-22 12:50:30,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:50:30" (1/1) ... [2020-12-22 12:50:34,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 12:50:34,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 12:50:34,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 12:50:34,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 12:50:34,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:50:30" (1/1) ... [2020-12-22 12:50:34,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:50:30" (1/1) ... [2020-12-22 12:50:35,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:50:30" (1/1) ... [2020-12-22 12:50:35,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:50:30" (1/1) ... [2020-12-22 12:50:37,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:50:30" (1/1) ... [2020-12-22 12:50:37,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:50:30" (1/1) ... [2020-12-22 12:50:37,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:50:30" (1/1) ... [2020-12-22 12:50:38,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 12:50:38,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 12:50:38,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 12:50:38,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 12:50:38,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:50:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 12:50:38,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 12:50:38,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 12:50:38,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 12:50:38,160 INFO L130 BoogieDeclarations]: Found specification of procedure ast_user_framebuffer_destroy [2020-12-22 12:50:38,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_user_framebuffer_destroy [2020-12-22 12:50:38,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 12:50:38,162 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2020-12-22 12:50:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2020-12-22 12:50:38,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 12:50:38,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 12:50:38,163 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 12:50:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 12:50:38,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 12:50:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 12:50:38,165 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2020-12-22 12:50:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2020-12-22 12:50:38,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 12:50:38,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 12:50:38,165 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked [2020-12-22 12:50:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked [2020-12-22 12:50:38,165 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_free [2020-12-22 12:50:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 12:50:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2020-12-22 12:50:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 12:50:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 12:50:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 12:50:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 12:51:46,737 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ast_gem_init_object_returnLabel: main_#t~ret100 := ast_gem_init_object_#res;assume -2147483648 <= main_#t~ret100 && main_#t~ret100 <= 2147483647;havoc main_#t~ret100;~ldv_state_variable_13~0 := 1; [2020-12-22 12:51:46,829 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 12:51:46,829 INFO L299 CfgBuilder]: Removed 20124 assume(true) statements. [2020-12-22 12:51:46,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:51:46 BoogieIcfgContainer [2020-12-22 12:51:46,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 12:51:46,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 12:51:46,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 12:51:46,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 12:51:46,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:50:24" (1/3) ... [2020-12-22 12:51:46,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d10ace4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:51:46, skipping insertion in model container [2020-12-22 12:51:46,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:50:30" (2/3) ... [2020-12-22 12:51:46,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d10ace4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:51:46, skipping insertion in model container [2020-12-22 12:51:46,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:51:46" (3/3) ... [2020-12-22 12:51:46,859 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i [2020-12-22 12:51:46,866 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 12:51:46,878 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2020-12-22 12:51:46,900 INFO L253 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2020-12-22 12:51:46,985 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 12:51:46,985 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 12:51:46,985 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 12:51:46,986 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 12:51:46,986 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 12:51:46,986 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 12:51:46,986 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 12:51:46,986 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 12:51:47,139 INFO L276 IsEmpty]: Start isEmpty. Operand 12024 states. [2020-12-22 12:51:47,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 12:51:47,146 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:51:47,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:51:47,147 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr1ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:51:47,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:51:47,155 INFO L82 PathProgramCache]: Analyzing trace with hash -838659541, now seen corresponding path program 1 times [2020-12-22 12:51:47,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:51:47,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294534282] [2020-12-22 12:51:47,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:51:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:51:47,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 12:51:47,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294534282] [2020-12-22 12:51:47,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:51:47,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:51:47,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666090338] [2020-12-22 12:51:48,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:51:48,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:51:48,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:51:48,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:51:48,019 INFO L87 Difference]: Start difference. First operand 12024 states. Second operand 3 states. [2020-12-22 12:51:51,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:51:51,550 INFO L93 Difference]: Finished difference Result 36034 states and 42507 transitions. [2020-12-22 12:51:51,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:51:51,556 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-12-22 12:51:51,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:51:51,699 INFO L225 Difference]: With dead ends: 36034 [2020-12-22 12:51:51,700 INFO L226 Difference]: Without dead ends: 24007 [2020-12-22 12:51:51,737 INFO L677 BasicCegarLoop]: 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 [2020-12-22 12:51:51,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24007 states. [2020-12-22 12:51:52,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24007 to 23963. [2020-12-22 12:51:52,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23963 states. [2020-12-22 12:51:52,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23963 states to 23963 states and 28158 transitions. [2020-12-22 12:51:52,942 INFO L78 Accepts]: Start accepts. Automaton has 23963 states and 28158 transitions. Word has length 15 [2020-12-22 12:51:52,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:51:52,943 INFO L481 AbstractCegarLoop]: Abstraction has 23963 states and 28158 transitions. [2020-12-22 12:51:52,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:51:52,943 INFO L276 IsEmpty]: Start isEmpty. Operand 23963 states and 28158 transitions. [2020-12-22 12:51:52,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-22 12:51:52,954 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:51:52,954 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:51:52,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 12:51:52,955 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr1ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:51:52,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:51:52,958 INFO L82 PathProgramCache]: Analyzing trace with hash -618363749, now seen corresponding path program 1 times [2020-12-22 12:51:52,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:51:52,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135311526] [2020-12-22 12:51:52,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:51:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:51:53,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 12:51:53,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135311526] [2020-12-22 12:51:53,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:51:53,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:51:53,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883006802] [2020-12-22 12:51:53,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:51:53,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:51:53,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:51:53,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:51:53,430 INFO L87 Difference]: Start difference. First operand 23963 states and 28158 transitions. Second operand 3 states. [2020-12-22 12:51:56,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:51:56,277 INFO L93 Difference]: Finished difference Result 23963 states and 28158 transitions. [2020-12-22 12:51:56,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:51:56,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-12-22 12:51:56,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:51:56,376 INFO L225 Difference]: With dead ends: 23963 [2020-12-22 12:51:56,377 INFO L226 Difference]: Without dead ends: 23961 [2020-12-22 12:51:56,387 INFO L677 BasicCegarLoop]: 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 [2020-12-22 12:51:56,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23961 states. [2020-12-22 12:51:57,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23961 to 23961. [2020-12-22 12:51:57,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23961 states. [2020-12-22 12:51:57,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23961 states to 23961 states and 28156 transitions. [2020-12-22 12:51:57,525 INFO L78 Accepts]: Start accepts. Automaton has 23961 states and 28156 transitions. Word has length 20 [2020-12-22 12:51:57,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:51:57,526 INFO L481 AbstractCegarLoop]: Abstraction has 23961 states and 28156 transitions. [2020-12-22 12:51:57,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:51:57,526 INFO L276 IsEmpty]: Start isEmpty. Operand 23961 states and 28156 transitions. [2020-12-22 12:51:57,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-22 12:51:57,530 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:51:57,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:51:57,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 12:51:57,531 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr1ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:51:57,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:51:57,533 INFO L82 PathProgramCache]: Analyzing trace with hash 2054184779, now seen corresponding path program 1 times [2020-12-22 12:51:57,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:51:57,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607264155] [2020-12-22 12:51:57,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:51:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:51:57,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 12:51:57,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607264155] [2020-12-22 12:51:57,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:51:57,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:51:57,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883985247] [2020-12-22 12:51:57,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:51:57,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:51:57,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:51:57,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:51:57,863 INFO L87 Difference]: Start difference. First operand 23961 states and 28156 transitions. Second operand 3 states. [2020-12-22 12:51:59,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:51:59,535 INFO L93 Difference]: Finished difference Result 71066 states and 83376 transitions. [2020-12-22 12:51:59,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:51:59,536 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-12-22 12:51:59,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:51:59,644 INFO L225 Difference]: With dead ends: 71066 [2020-12-22 12:51:59,644 INFO L226 Difference]: Without dead ends: 47108 [2020-12-22 12:51:59,695 INFO L677 BasicCegarLoop]: 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 [2020-12-22 12:51:59,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47108 states. [2020-12-22 12:52:01,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47108 to 47056. [2020-12-22 12:52:01,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47056 states. [2020-12-22 12:52:01,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47056 states to 47056 states and 55186 transitions. [2020-12-22 12:52:01,519 INFO L78 Accepts]: Start accepts. Automaton has 47056 states and 55186 transitions. Word has length 20 [2020-12-22 12:52:01,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:52:01,519 INFO L481 AbstractCegarLoop]: Abstraction has 47056 states and 55186 transitions. [2020-12-22 12:52:01,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:52:01,520 INFO L276 IsEmpty]: Start isEmpty. Operand 47056 states and 55186 transitions. [2020-12-22 12:52:01,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 12:52:01,521 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:52:01,521 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:52:01,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 12:52:01,522 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr1ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:52:01,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:52:01,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1989376129, now seen corresponding path program 1 times [2020-12-22 12:52:01,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:52:01,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78369233] [2020-12-22 12:52:01,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:52:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:52:02,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 12:52:02,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78369233] [2020-12-22 12:52:02,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:52:02,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:52:02,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774173140] [2020-12-22 12:52:02,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:52:02,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:52:02,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:52:02,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:52:02,025 INFO L87 Difference]: Start difference. First operand 47056 states and 55186 transitions. Second operand 3 states. [2020-12-22 12:52:05,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:52:05,152 INFO L93 Difference]: Finished difference Result 47056 states and 55186 transitions. [2020-12-22 12:52:05,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:52:05,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-12-22 12:52:05,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:52:05,322 INFO L225 Difference]: With dead ends: 47056 [2020-12-22 12:52:05,322 INFO L226 Difference]: Without dead ends: 47054 [2020-12-22 12:52:05,336 INFO L677 BasicCegarLoop]: 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 [2020-12-22 12:52:05,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47054 states. [2020-12-22 12:52:07,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47054 to 47054. [2020-12-22 12:52:07,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47054 states. [2020-12-22 12:52:07,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47054 states to 47054 states and 55184 transitions. [2020-12-22 12:52:07,839 INFO L78 Accepts]: Start accepts. Automaton has 47054 states and 55184 transitions. Word has length 21 [2020-12-22 12:52:07,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:52:07,839 INFO L481 AbstractCegarLoop]: Abstraction has 47054 states and 55184 transitions. [2020-12-22 12:52:07,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:52:07,840 INFO L276 IsEmpty]: Start isEmpty. Operand 47054 states and 55184 transitions. [2020-12-22 12:52:07,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 12:52:07,841 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:52:07,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:52:07,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 12:52:07,842 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr1ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:52:07,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:52:07,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1541086939, now seen corresponding path program 1 times [2020-12-22 12:52:07,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:52:07,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753258142] [2020-12-22 12:52:07,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:52:07,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:52:08,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 12:52:08,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753258142] [2020-12-22 12:52:08,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:52:08,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:52:08,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637130653] [2020-12-22 12:52:08,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:52:08,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:52:08,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:52:08,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:52:08,182 INFO L87 Difference]: Start difference. First operand 47054 states and 55184 transitions. Second operand 3 states. [2020-12-22 12:52:11,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:52:11,339 INFO L93 Difference]: Finished difference Result 47054 states and 55184 transitions. [2020-12-22 12:52:11,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:52:11,340 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-22 12:52:11,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:52:11,520 INFO L225 Difference]: With dead ends: 47054 [2020-12-22 12:52:11,521 INFO L226 Difference]: Without dead ends: 47052 [2020-12-22 12:52:11,533 INFO L677 BasicCegarLoop]: 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 [2020-12-22 12:52:11,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47052 states. [2020-12-22 12:52:13,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47052 to 47052. [2020-12-22 12:52:13,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47052 states. [2020-12-22 12:52:13,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47052 states to 47052 states and 55182 transitions. [2020-12-22 12:52:13,152 INFO L78 Accepts]: Start accepts. Automaton has 47052 states and 55182 transitions. Word has length 22 [2020-12-22 12:52:13,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:52:13,153 INFO L481 AbstractCegarLoop]: Abstraction has 47052 states and 55182 transitions. [2020-12-22 12:52:13,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:52:13,153 INFO L276 IsEmpty]: Start isEmpty. Operand 47052 states and 55182 transitions. [2020-12-22 12:52:13,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 12:52:13,155 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:52:13,155 INFO L422 BasicCegarLoop]: 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] [2020-12-22 12:52:13,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 12:52:13,156 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr1ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:52:13,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:52:13,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1557476202, now seen corresponding path program 1 times [2020-12-22 12:52:13,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:52:13,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860025451] [2020-12-22 12:52:13,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:52:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:52:13,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 12:52:13,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860025451] [2020-12-22 12:52:13,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:52:13,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:52:13,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834074671] [2020-12-22 12:52:13,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:52:13,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:52:13,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:52:13,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:52:13,611 INFO L87 Difference]: Start difference. First operand 47052 states and 55182 transitions. Second operand 3 states. [2020-12-22 12:52:16,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:52:16,896 INFO L93 Difference]: Finished difference Result 141013 states and 165358 transitions. [2020-12-22 12:52:16,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:52:16,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-12-22 12:52:16,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:52:17,050 INFO L225 Difference]: With dead ends: 141013 [2020-12-22 12:52:17,051 INFO L226 Difference]: Without dead ends: 93964 [2020-12-22 12:52:17,140 INFO L677 BasicCegarLoop]: 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 [2020-12-22 12:52:17,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93964 states. [2020-12-22 12:52:20,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93964 to 93904. [2020-12-22 12:52:20,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93904 states. [2020-12-22 12:52:21,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93904 states to 93904 states and 110138 transitions. [2020-12-22 12:52:21,194 INFO L78 Accepts]: Start accepts. Automaton has 93904 states and 110138 transitions. Word has length 23 [2020-12-22 12:52:21,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:52:21,194 INFO L481 AbstractCegarLoop]: Abstraction has 93904 states and 110138 transitions. [2020-12-22 12:52:21,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:52:21,194 INFO L276 IsEmpty]: Start isEmpty. Operand 93904 states and 110138 transitions. [2020-12-22 12:52:21,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 12:52:21,198 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:52:21,198 INFO L422 BasicCegarLoop]: 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] [2020-12-22 12:52:21,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 12:52:21,198 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr1ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:52:21,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:52:21,199 INFO L82 PathProgramCache]: Analyzing trace with hash -529023927, now seen corresponding path program 1 times [2020-12-22 12:52:21,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:52:21,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541816269] [2020-12-22 12:52:21,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:52:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:52:21,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 12:52:21,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541816269] [2020-12-22 12:52:21,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:52:21,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:52:21,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380083423] [2020-12-22 12:52:21,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:52:21,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:52:21,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:52:21,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:52:21,497 INFO L87 Difference]: Start difference. First operand 93904 states and 110138 transitions. Second operand 3 states. [2020-12-22 12:52:26,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:52:26,294 INFO L93 Difference]: Finished difference Result 93904 states and 110138 transitions. [2020-12-22 12:52:26,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:52:26,295 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-12-22 12:52:26,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:52:26,440 INFO L225 Difference]: With dead ends: 93904 [2020-12-22 12:52:26,440 INFO L226 Difference]: Without dead ends: 93902 [2020-12-22 12:52:26,466 INFO L677 BasicCegarLoop]: 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 [2020-12-22 12:52:26,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93902 states. [2020-12-22 12:52:29,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93902 to 93902. [2020-12-22 12:52:29,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93902 states. [2020-12-22 12:52:29,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93902 states to 93902 states and 110136 transitions. [2020-12-22 12:52:29,861 INFO L78 Accepts]: Start accepts. Automaton has 93902 states and 110136 transitions. Word has length 23 [2020-12-22 12:52:29,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:52:29,861 INFO L481 AbstractCegarLoop]: Abstraction has 93902 states and 110136 transitions. [2020-12-22 12:52:29,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:52:29,862 INFO L276 IsEmpty]: Start isEmpty. Operand 93902 states and 110136 transitions. [2020-12-22 12:52:29,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 12:52:29,863 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:52:29,863 INFO L422 BasicCegarLoop]: 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] [2020-12-22 12:52:29,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 12:52:29,864 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr1ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:52:29,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:52:29,864 INFO L82 PathProgramCache]: Analyzing trace with hash 780158383, now seen corresponding path program 1 times [2020-12-22 12:52:29,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:52:29,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812582717] [2020-12-22 12:52:29,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:52:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:52:30,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 12:52:30,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812582717] [2020-12-22 12:52:30,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:52:30,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:52:30,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818160066] [2020-12-22 12:52:30,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:52:30,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:52:30,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:52:30,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:52:30,146 INFO L87 Difference]: Start difference. First operand 93902 states and 110136 transitions. Second operand 3 states. [2020-12-22 12:52:35,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:52:35,296 INFO L93 Difference]: Finished difference Result 93902 states and 110136 transitions. [2020-12-22 12:52:35,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:52:35,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-22 12:52:35,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:52:35,417 INFO L225 Difference]: With dead ends: 93902 [2020-12-22 12:52:35,418 INFO L226 Difference]: Without dead ends: 93894 [2020-12-22 12:52:35,436 INFO L677 BasicCegarLoop]: 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 [2020-12-22 12:52:35,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93894 states. [2020-12-22 12:52:38,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93894 to 93894. [2020-12-22 12:52:38,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93894 states. [2020-12-22 12:52:38,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93894 states to 93894 states and 110107 transitions. [2020-12-22 12:52:38,957 INFO L78 Accepts]: Start accepts. Automaton has 93894 states and 110107 transitions. Word has length 24 [2020-12-22 12:52:38,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:52:38,958 INFO L481 AbstractCegarLoop]: Abstraction has 93894 states and 110107 transitions. [2020-12-22 12:52:38,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:52:38,958 INFO L276 IsEmpty]: Start isEmpty. Operand 93894 states and 110107 transitions. [2020-12-22 12:52:38,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 12:52:38,960 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:52:38,960 INFO L422 BasicCegarLoop]: 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] [2020-12-22 12:52:38,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 12:52:38,966 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr1ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:52:38,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:52:38,967 INFO L82 PathProgramCache]: Analyzing trace with hash -991114184, now seen corresponding path program 1 times [2020-12-22 12:52:38,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:52:38,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907039633] [2020-12-22 12:52:38,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:52:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:52:39,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 12:52:39,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907039633] [2020-12-22 12:52:39,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:52:39,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:52:39,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733985917] [2020-12-22 12:52:39,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:52:39,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:52:39,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:52:39,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:52:39,231 INFO L87 Difference]: Start difference. First operand 93894 states and 110107 transitions. Second operand 3 states. [2020-12-22 12:52:46,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:52:46,208 INFO L93 Difference]: Finished difference Result 281563 states and 330129 transitions. [2020-12-22 12:52:46,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:52:46,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-12-22 12:52:46,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:52:46,496 INFO L225 Difference]: With dead ends: 281563 [2020-12-22 12:52:46,496 INFO L226 Difference]: Without dead ends: 187672 [2020-12-22 12:52:46,773 INFO L677 BasicCegarLoop]: 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 [2020-12-22 12:52:46,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187672 states. [2020-12-22 12:52:53,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187672 to 187622. [2020-12-22 12:52:53,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187622 states. [2020-12-22 12:52:54,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187622 states to 187622 states and 219987 transitions. [2020-12-22 12:52:54,045 INFO L78 Accepts]: Start accepts. Automaton has 187622 states and 219987 transitions. Word has length 26 [2020-12-22 12:52:54,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:52:54,045 INFO L481 AbstractCegarLoop]: Abstraction has 187622 states and 219987 transitions. [2020-12-22 12:52:54,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:52:54,046 INFO L276 IsEmpty]: Start isEmpty. Operand 187622 states and 219987 transitions. [2020-12-22 12:52:54,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 12:52:54,050 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:52:54,050 INFO L422 BasicCegarLoop]: 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] [2020-12-22 12:52:54,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 12:52:54,051 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr1ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:52:54,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:52:54,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1584862957, now seen corresponding path program 1 times [2020-12-22 12:52:54,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:52:54,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139805757] [2020-12-22 12:52:54,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:52:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:52:54,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 12:52:54,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139805757] [2020-12-22 12:52:54,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:52:54,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:52:54,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814685107] [2020-12-22 12:52:54,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:52:54,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:52:54,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:52:54,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:52:54,334 INFO L87 Difference]: Start difference. First operand 187622 states and 219987 transitions. Second operand 3 states. [2020-12-22 12:53:04,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:53:04,638 INFO L93 Difference]: Finished difference Result 375771 states and 440945 transitions. [2020-12-22 12:53:04,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:53:04,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-12-22 12:53:04,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:53:05,135 INFO L225 Difference]: With dead ends: 375771 [2020-12-22 12:53:05,136 INFO L226 Difference]: Without dead ends: 188152 [2020-12-22 12:53:05,333 INFO L677 BasicCegarLoop]: 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 [2020-12-22 12:53:05,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188152 states. [2020-12-22 12:53:12,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188152 to 187930. [2020-12-22 12:53:12,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187930 states. [2020-12-22 12:53:13,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187930 states to 187930 states and 220332 transitions. [2020-12-22 12:53:13,729 INFO L78 Accepts]: Start accepts. Automaton has 187930 states and 220332 transitions. Word has length 25 [2020-12-22 12:53:13,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:53:13,732 INFO L481 AbstractCegarLoop]: Abstraction has 187930 states and 220332 transitions. [2020-12-22 12:53:13,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:53:13,732 INFO L276 IsEmpty]: Start isEmpty. Operand 187930 states and 220332 transitions. [2020-12-22 12:53:13,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 12:53:13,737 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:53:13,737 INFO L422 BasicCegarLoop]: 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] [2020-12-22 12:53:13,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 12:53:13,744 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr1ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:53:13,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:53:13,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1886080455, now seen corresponding path program 1 times [2020-12-22 12:53:13,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:53:13,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23052635] [2020-12-22 12:53:13,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:53:14,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:53:14,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 12:53:14,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23052635] [2020-12-22 12:53:14,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:53:14,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:53:14,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379870342] [2020-12-22 12:53:14,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:53:14,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:53:14,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:53:14,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:53:14,272 INFO L87 Difference]: Start difference. First operand 187930 states and 220332 transitions. Second operand 3 states. [2020-12-22 12:53:25,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:53:25,721 INFO L93 Difference]: Finished difference Result 187930 states and 220332 transitions. [2020-12-22 12:53:25,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:53:25,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-12-22 12:53:25,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:53:26,258 INFO L225 Difference]: With dead ends: 187930 [2020-12-22 12:53:26,259 INFO L226 Difference]: Without dead ends: 187920 [2020-12-22 12:53:26,303 INFO L677 BasicCegarLoop]: 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 [2020-12-22 12:53:26,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187920 states. [2020-12-22 12:53:34,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187920 to 187920. [2020-12-22 12:53:34,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187920 states. [2020-12-22 12:53:34,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187920 states to 187920 states and 220306 transitions. [2020-12-22 12:53:34,392 INFO L78 Accepts]: Start accepts. Automaton has 187920 states and 220306 transitions. Word has length 26 [2020-12-22 12:53:34,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:53:34,392 INFO L481 AbstractCegarLoop]: Abstraction has 187920 states and 220306 transitions. [2020-12-22 12:53:34,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:53:34,393 INFO L276 IsEmpty]: Start isEmpty. Operand 187920 states and 220306 transitions. [2020-12-22 12:53:34,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-22 12:53:34,404 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:53:34,404 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:53:34,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 12:53:34,405 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr1ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:53:34,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:53:34,405 INFO L82 PathProgramCache]: Analyzing trace with hash -12386296, now seen corresponding path program 1 times [2020-12-22 12:53:34,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:53:34,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985447844] [2020-12-22 12:53:34,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:53:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:53:35,093 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 12:53:35,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985447844] [2020-12-22 12:53:35,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:53:35,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 12:53:35,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142564097] [2020-12-22 12:53:35,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 12:53:35,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:53:35,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 12:53:35,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 12:53:35,098 INFO L87 Difference]: Start difference. First operand 187920 states and 220306 transitions. Second operand 4 states.