./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e37e45521ffb127b83b9baab443e42b7c078cf8a8451cb2a1813ac325e01717d --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 15:38:37,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 15:38:37,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 15:38:37,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 15:38:37,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 15:38:37,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 15:38:37,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 15:38:37,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 15:38:37,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 15:38:37,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 15:38:37,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 15:38:37,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 15:38:37,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 15:38:37,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 15:38:37,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 15:38:37,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 15:38:37,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 15:38:37,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 15:38:37,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 15:38:37,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 15:38:37,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 15:38:37,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 15:38:37,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 15:38:37,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 15:38:37,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 15:38:37,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 15:38:37,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 15:38:37,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 15:38:37,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 15:38:37,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 15:38:37,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 15:38:37,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 15:38:37,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 15:38:37,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 15:38:37,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 15:38:37,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 15:38:37,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 15:38:37,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 15:38:37,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 15:38:37,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 15:38:37,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 15:38:37,091 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 15:38:37,109 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 15:38:37,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 15:38:37,112 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 15:38:37,113 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 15:38:37,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 15:38:37,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 15:38:37,116 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 15:38:37,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 15:38:37,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 15:38:37,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 15:38:37,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 15:38:37,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 15:38:37,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 15:38:37,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 15:38:37,118 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 15:38:37,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 15:38:37,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 15:38:37,118 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 15:38:37,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 15:38:37,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 15:38:37,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 15:38:37,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 15:38:37,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 15:38:37,119 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 15:38:37,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 15:38:37,119 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 15:38:37,119 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 15:38:37,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 15:38:37,119 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 15:38:37,120 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e37e45521ffb127b83b9baab443e42b7c078cf8a8451cb2a1813ac325e01717d [2021-11-05 15:38:37,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 15:38:37,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 15:38:37,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 15:38:37,409 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 15:38:37,409 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 15:38:37,410 INFO L432 ainManager$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 [2021-11-05 15:38:37,467 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbce0fe75/bae443f7987545e1ae524ca161605703/FLAGbdf804f13 [2021-11-05 15:38:38,143 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 15:38:38,143 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 [2021-11-05 15:38:38,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbce0fe75/bae443f7987545e1ae524ca161605703/FLAGbdf804f13 [2021-11-05 15:38:38,494 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbce0fe75/bae443f7987545e1ae524ca161605703 [2021-11-05 15:38:38,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 15:38:38,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 15:38:38,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 15:38:38,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 15:38:38,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 15:38:38,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 03:38:38" (1/1) ... [2021-11-05 15:38:38,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d262c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:38:38, skipping insertion in model container [2021-11-05 15:38:38,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 03:38:38" (1/1) ... [2021-11-05 15:38:38,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 15:38:38,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 15:38:40,866 WARN L228 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] [2021-11-05 15:38:41,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 15:38:41,070 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 15:38:41,382 WARN L228 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] [2021-11-05 15:38:41,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 15:38:41,595 INFO L208 MainTranslator]: Completed translation [2021-11-05 15:38:41,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:38:41 WrapperNode [2021-11-05 15:38:41,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 15:38:41,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 15:38:41,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 15:38:41,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 15:38:41,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:38:41" (1/1) ... [2021-11-05 15:38:41,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:38:41" (1/1) ... [2021-11-05 15:38:44,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 15:38:44,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 15:38:44,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 15:38:44,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 15:38:44,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:38:41" (1/1) ... [2021-11-05 15:38:44,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:38:41" (1/1) ... [2021-11-05 15:38:44,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:38:41" (1/1) ... [2021-11-05 15:38:44,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:38:41" (1/1) ... [2021-11-05 15:38:45,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:38:41" (1/1) ... [2021-11-05 15:38:45,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:38:41" (1/1) ... [2021-11-05 15:38:46,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:38:41" (1/1) ... [2021-11-05 15:38:46,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 15:38:46,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 15:38:46,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 15:38:46,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 15:38:46,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:38:41" (1/1) ... [2021-11-05 15:38:46,250 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 15:38:46,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 15:38:46,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 15:38:46,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 15:38:46,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 15:38:46,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 15:38:46,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 15:38:46,312 INFO L130 BoogieDeclarations]: Found specification of procedure ast_user_framebuffer_destroy [2021-11-05 15:38:46,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_user_framebuffer_destroy [2021-11-05 15:38:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 15:38:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-05 15:38:46,313 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-05 15:38:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 15:38:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 15:38:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 15:38:46,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 15:38:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 15:38:46,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 15:38:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-05 15:38:46,314 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-05 15:38:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 15:38:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 15:38:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked [2021-11-05 15:38:46,314 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked [2021-11-05 15:38:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_free [2021-11-05 15:38:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 15:38:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2021-11-05 15:38:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 15:38:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 15:38:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 15:38:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 15:39:26,103 INFO L757 $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; [2021-11-05 15:39:26,149 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 15:39:26,150 INFO L299 CfgBuilder]: Removed 20124 assume(true) statements. [2021-11-05 15:39:26,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 03:39:26 BoogieIcfgContainer [2021-11-05 15:39:26,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 15:39:26,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 15:39:26,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 15:39:26,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 15:39:26,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 03:38:38" (1/3) ... [2021-11-05 15:39:26,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a54664e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 03:39:26, skipping insertion in model container [2021-11-05 15:39:26,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:38:41" (2/3) ... [2021-11-05 15:39:26,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a54664e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 03:39:26, skipping insertion in model container [2021-11-05 15:39:26,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 03:39:26" (3/3) ... [2021-11-05 15:39:26,167 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i [2021-11-05 15:39:26,171 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 15:39:26,171 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-11-05 15:39:26,232 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 15:39:26,236 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 15:39:26,237 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-11-05 15:39:26,343 INFO L276 IsEmpty]: Start isEmpty. Operand has 12024 states, 11973 states have (on average 1.1811576046103733) internal successors, (14142), 12003 states have internal predecessors, (14142), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-05 15:39:26,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-05 15:39:26,348 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:39:26,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:39:26,349 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr1ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-05 15:39:26,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:39:26,355 INFO L85 PathProgramCache]: Analyzing trace with hash -838659541, now seen corresponding path program 1 times [2021-11-05 15:39:26,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:39:26,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150979062] [2021-11-05 15:39:26,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:39:26,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:39:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:39:26,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:39:26,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:39:26,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150979062] [2021-11-05 15:39:26,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150979062] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:39:26,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:39:26,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:39:26,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140634030] [2021-11-05 15:39:26,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:39:26,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:39:26,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:39:26,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:39:26,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:39:26,906 INFO L87 Difference]: Start difference. First operand has 12024 states, 11973 states have (on average 1.1811576046103733) internal successors, (14142), 12003 states have internal predecessors, (14142), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:39:28,982 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:39:30,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:39:30,026 INFO L93 Difference]: Finished difference Result 36034 states and 42507 transitions. [2021-11-05 15:39:30,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:39:30,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-05 15:39:30,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:39:30,110 INFO L225 Difference]: With dead ends: 36034 [2021-11-05 15:39:30,111 INFO L226 Difference]: Without dead ends: 24007 [2021-11-05 15:39:30,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.84ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:39:30,145 INFO L933 BasicCegarLoop]: 14127 mSDtfsCounter, 14073 mSDsluCounter, 14095 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2079.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14073 SdHoareTripleChecker+Valid, 28222 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 59.49ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2263.32ms IncrementalHoareTripleChecker+Time [2021-11-05 15:39:30,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14073 Valid, 28222 Invalid, 15 Unknown, 0 Unchecked, 59.49ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2263.32ms Time] [2021-11-05 15:39:30,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24007 states. [2021-11-05 15:39:30,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24007 to 23963. [2021-11-05 15:39:30,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23963 states, 23892 states have (on average 1.1758747697974217) internal successors, (28094), 23922 states have internal predecessors, (28094), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-05 15:39:30,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23963 states to 23963 states and 28158 transitions. [2021-11-05 15:39:30,637 INFO L78 Accepts]: Start accepts. Automaton has 23963 states and 28158 transitions. Word has length 15 [2021-11-05 15:39:30,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:39:30,638 INFO L470 AbstractCegarLoop]: Abstraction has 23963 states and 28158 transitions. [2021-11-05 15:39:30,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:39:30,640 INFO L276 IsEmpty]: Start isEmpty. Operand 23963 states and 28158 transitions. [2021-11-05 15:39:30,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-05 15:39:30,646 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:39:30,647 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:39:30,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 15:39:30,647 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr1ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-05 15:39:30,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:39:30,649 INFO L85 PathProgramCache]: Analyzing trace with hash -618363749, now seen corresponding path program 1 times [2021-11-05 15:39:30,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:39:30,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118308145] [2021-11-05 15:39:30,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:39:30,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:39:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:39:30,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:39:30,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:39:30,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118308145] [2021-11-05 15:39:30,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118308145] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:39:30,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:39:30,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:39:30,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403775549] [2021-11-05 15:39:30,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:39:30,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:39:30,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:39:30,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:39:30,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:39:30,861 INFO L87 Difference]: Start difference. First operand 23963 states and 28158 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:39:32,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:39:33,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:39:33,540 INFO L93 Difference]: Finished difference Result 23963 states and 28158 transitions. [2021-11-05 15:39:33,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:39:33,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-05 15:39:33,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:39:33,592 INFO L225 Difference]: With dead ends: 23963 [2021-11-05 15:39:33,592 INFO L226 Difference]: Without dead ends: 23961 [2021-11-05 15:39:33,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.78ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:39:33,606 INFO L933 BasicCegarLoop]: 14105 mSDtfsCounter, 14088 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2058.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14088 SdHoareTripleChecker+Valid, 14105 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.56ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2183.40ms IncrementalHoareTripleChecker+Time [2021-11-05 15:39:33,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14088 Valid, 14105 Invalid, 2 Unknown, 0 Unchecked, 20.56ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2183.40ms Time] [2021-11-05 15:39:33,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23961 states. [2021-11-05 15:39:34,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23961 to 23961. [2021-11-05 15:39:34,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23961 states, 23891 states have (on average 1.175840274580386) internal successors, (28092), 23920 states have internal predecessors, (28092), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-05 15:39:34,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23961 states to 23961 states and 28156 transitions. [2021-11-05 15:39:34,155 INFO L78 Accepts]: Start accepts. Automaton has 23961 states and 28156 transitions. Word has length 20 [2021-11-05 15:39:34,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:39:34,155 INFO L470 AbstractCegarLoop]: Abstraction has 23961 states and 28156 transitions. [2021-11-05 15:39:34,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:39:34,156 INFO L276 IsEmpty]: Start isEmpty. Operand 23961 states and 28156 transitions. [2021-11-05 15:39:34,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-05 15:39:34,157 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:39:34,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:39:34,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 15:39:34,157 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr1ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-05 15:39:34,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:39:34,158 INFO L85 PathProgramCache]: Analyzing trace with hash 2054184779, now seen corresponding path program 1 times [2021-11-05 15:39:34,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:39:34,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297329455] [2021-11-05 15:39:34,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:39:34,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:39:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:39:34,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:39:34,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:39:34,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297329455] [2021-11-05 15:39:34,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297329455] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:39:34,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:39:34,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:39:34,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675995265] [2021-11-05 15:39:34,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:39:34,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:39:34,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:39:34,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:39:34,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:39:34,344 INFO L87 Difference]: Start difference. First operand 23961 states and 28156 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:39:35,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:39:35,399 INFO L93 Difference]: Finished difference Result 71066 states and 83376 transitions. [2021-11-05 15:39:35,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:39:35,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-05 15:39:35,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:39:35,499 INFO L225 Difference]: With dead ends: 71066 [2021-11-05 15:39:35,500 INFO L226 Difference]: Without dead ends: 47108 [2021-11-05 15:39:35,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.74ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:39:35,547 INFO L933 BasicCegarLoop]: 14121 mSDtfsCounter, 13549 mSDsluCounter, 14081 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13549 SdHoareTripleChecker+Valid, 28202 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.87ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 124.33ms IncrementalHoareTripleChecker+Time [2021-11-05 15:39:35,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13549 Valid, 28202 Invalid, 24 Unknown, 0 Unchecked, 34.87ms Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 124.33ms Time] [2021-11-05 15:39:35,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47108 states. [2021-11-05 15:39:36,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47108 to 47056. [2021-11-05 15:39:36,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47056 states, 46952 states have (on average 1.1729851763503152) internal successors, (55074), 46983 states have internal predecessors, (55074), 56 states have call successors, (56), 20 states have call predecessors, (56), 20 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2021-11-05 15:39:36,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47056 states to 47056 states and 55186 transitions. [2021-11-05 15:39:36,927 INFO L78 Accepts]: Start accepts. Automaton has 47056 states and 55186 transitions. Word has length 20 [2021-11-05 15:39:36,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:39:36,928 INFO L470 AbstractCegarLoop]: Abstraction has 47056 states and 55186 transitions. [2021-11-05 15:39:36,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:39:36,928 INFO L276 IsEmpty]: Start isEmpty. Operand 47056 states and 55186 transitions. [2021-11-05 15:39:36,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-05 15:39:36,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:39:36,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:39:36,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 15:39:36,930 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr1ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-05 15:39:36,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:39:36,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1989376129, now seen corresponding path program 1 times [2021-11-05 15:39:36,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:39:36,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966116263] [2021-11-05 15:39:36,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:39:36,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:39:37,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:39:37,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:39:37,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:39:37,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966116263] [2021-11-05 15:39:37,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966116263] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:39:37,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:39:37,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:39:37,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139229808] [2021-11-05 15:39:37,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:39:37,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:39:37,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:39:37,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:39:37,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:39:37,162 INFO L87 Difference]: Start difference. First operand 47056 states and 55186 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:39:39,229 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:39:40,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:39:40,052 INFO L93 Difference]: Finished difference Result 47056 states and 55186 transitions. [2021-11-05 15:39:40,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:39:40,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-05 15:39:40,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:39:40,147 INFO L225 Difference]: With dead ends: 47056 [2021-11-05 15:39:40,147 INFO L226 Difference]: Without dead ends: 47054 [2021-11-05 15:39:40,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.81ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:39:40,174 INFO L933 BasicCegarLoop]: 14103 mSDtfsCounter, 14085 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2066.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14085 SdHoareTripleChecker+Valid, 14103 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.09ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2210.65ms IncrementalHoareTripleChecker+Time [2021-11-05 15:39:40,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14085 Valid, 14103 Invalid, 2 Unknown, 0 Unchecked, 14.09ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2210.65ms Time] [2021-11-05 15:39:40,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47054 states. [2021-11-05 15:39:41,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47054 to 47054. [2021-11-05 15:39:41,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47054 states, 46951 states have (on average 1.1729675619262636) internal successors, (55072), 46981 states have internal predecessors, (55072), 56 states have call successors, (56), 20 states have call predecessors, (56), 20 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2021-11-05 15:39:41,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47054 states to 47054 states and 55184 transitions. [2021-11-05 15:39:41,412 INFO L78 Accepts]: Start accepts. Automaton has 47054 states and 55184 transitions. Word has length 21 [2021-11-05 15:39:41,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:39:41,412 INFO L470 AbstractCegarLoop]: Abstraction has 47054 states and 55184 transitions. [2021-11-05 15:39:41,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:39:41,412 INFO L276 IsEmpty]: Start isEmpty. Operand 47054 states and 55184 transitions. [2021-11-05 15:39:41,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-05 15:39:41,414 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:39:41,414 INFO L514 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] [2021-11-05 15:39:41,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 15:39:41,415 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr1ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-05 15:39:41,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:39:41,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1541086939, now seen corresponding path program 1 times [2021-11-05 15:39:41,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:39:41,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714981724] [2021-11-05 15:39:41,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:39:41,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:39:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:39:41,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:39:41,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:39:41,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714981724] [2021-11-05 15:39:41,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714981724] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:39:41,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:39:41,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:39:41,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408096725] [2021-11-05 15:39:41,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:39:41,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:39:41,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:39:41,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:39:41,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:39:41,778 INFO L87 Difference]: Start difference. First operand 47054 states and 55184 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:39:43,848 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:39:44,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:39:44,795 INFO L93 Difference]: Finished difference Result 47054 states and 55184 transitions. [2021-11-05 15:39:44,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:39:44,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-05 15:39:44,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:39:44,893 INFO L225 Difference]: With dead ends: 47054 [2021-11-05 15:39:44,893 INFO L226 Difference]: Without dead ends: 47052 [2021-11-05 15:39:44,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:39:44,917 INFO L933 BasicCegarLoop]: 14101 mSDtfsCounter, 14082 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2067.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14082 SdHoareTripleChecker+Valid, 14101 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.47ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2221.35ms IncrementalHoareTripleChecker+Time [2021-11-05 15:39:44,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14082 Valid, 14101 Invalid, 2 Unknown, 0 Unchecked, 12.47ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2221.35ms Time] [2021-11-05 15:39:44,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47052 states. [2021-11-05 15:39:46,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47052 to 47052. [2021-11-05 15:39:46,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47052 states, 46950 states have (on average 1.1729499467518636) internal successors, (55070), 46979 states have internal predecessors, (55070), 56 states have call successors, (56), 20 states have call predecessors, (56), 20 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2021-11-05 15:39:46,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47052 states to 47052 states and 55182 transitions. [2021-11-05 15:39:46,407 INFO L78 Accepts]: Start accepts. Automaton has 47052 states and 55182 transitions. Word has length 22 [2021-11-05 15:39:46,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:39:46,407 INFO L470 AbstractCegarLoop]: Abstraction has 47052 states and 55182 transitions. [2021-11-05 15:39:46,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:39:46,408 INFO L276 IsEmpty]: Start isEmpty. Operand 47052 states and 55182 transitions. [2021-11-05 15:39:46,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-05 15:39:46,409 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:39:46,409 INFO L514 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] [2021-11-05 15:39:46,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 15:39:46,410 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION === [drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr1ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-05 15:39:46,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:39:46,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1557476202, now seen corresponding path program 1 times [2021-11-05 15:39:46,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:39:46,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602002013] [2021-11-05 15:39:46,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:39:46,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:39:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:39:46,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:39:46,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:39:46,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602002013] [2021-11-05 15:39:46,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602002013] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:39:46,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:39:46,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:39:46,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848590784] [2021-11-05 15:39:46,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:39:46,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:39:46,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:39:46,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:39:46,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:39:46,610 INFO L87 Difference]: Start difference. First operand 47052 states and 55182 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:39:48,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:39:48,858 INFO L93 Difference]: Finished difference Result 141013 states and 165358 transitions. [2021-11-05 15:39:48,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:39:48,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-05 15:39:48,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:39:49,135 INFO L225 Difference]: With dead ends: 141013 [2021-11-05 15:39:49,136 INFO L226 Difference]: Without dead ends: 93964 [2021-11-05 15:39:49,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.10ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:39:49,226 INFO L933 BasicCegarLoop]: 14661 mSDtfsCounter, 14051 mSDsluCounter, 14093 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14051 SdHoareTripleChecker+Valid, 28754 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.92ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.72ms IncrementalHoareTripleChecker+Time [2021-11-05 15:39:49,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14051 Valid, 28754 Invalid, 8 Unknown, 0 Unchecked, 26.92ms Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 87.72ms Time] [2021-11-05 15:39:49,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93964 states. [2021-11-05 15:39:51,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93964 to 93904. [2021-11-05 15:39:51,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93904 states, 93734 states have (on average 1.1727868222843365) internal successors, (109930), 93767 states have internal predecessors, (109930), 104 states have call successors, (104), 40 states have call predecessors, (104), 40 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2021-11-05 15:39:51,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93904 states to 93904 states and 110138 transitions. [2021-11-05 15:39:51,859 INFO L78 Accepts]: Start accepts. Automaton has 93904 states and 110138 transitions. Word has length 23 [2021-11-05 15:39:51,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:39:51,859 INFO L470 AbstractCegarLoop]: Abstraction has 93904 states and 110138 transitions. [2021-11-05 15:39:51,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:39:51,860 INFO L276 IsEmpty]: Start isEmpty. Operand 93904 states and 110138 transitions. [2021-11-05 15:39:51,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-05 15:39:51,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:39:51,861 INFO L514 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] [2021-11-05 15:39:51,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 15:39:51,861 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr1ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-05 15:39:51,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:39:51,862 INFO L85 PathProgramCache]: Analyzing trace with hash -529023927, now seen corresponding path program 1 times [2021-11-05 15:39:51,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:39:51,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578601198] [2021-11-05 15:39:51,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:39:51,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:39:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:39:52,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:39:52,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:39:52,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578601198] [2021-11-05 15:39:52,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578601198] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:39:52,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:39:52,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:39:52,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638503805] [2021-11-05 15:39:52,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:39:52,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:39:52,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:39:52,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:39:52,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:39:52,244 INFO L87 Difference]: Start difference. First operand 93904 states and 110138 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:39:54,309 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:39:56,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:39:56,498 INFO L93 Difference]: Finished difference Result 93904 states and 110138 transitions. [2021-11-05 15:39:56,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:39:56,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-05 15:39:56,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:39:56,676 INFO L225 Difference]: With dead ends: 93904 [2021-11-05 15:39:56,677 INFO L226 Difference]: Without dead ends: 93902 [2021-11-05 15:39:56,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.88ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:39:56,713 INFO L933 BasicCegarLoop]: 14099 mSDtfsCounter, 14079 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2063.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14079 SdHoareTripleChecker+Valid, 14099 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2270.90ms IncrementalHoareTripleChecker+Time [2021-11-05 15:39:56,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14079 Valid, 14099 Invalid, 2 Unknown, 0 Unchecked, 16.20ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2270.90ms Time] [2021-11-05 15:39:56,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93902 states. [2021-11-05 15:39:59,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93902 to 93902. [2021-11-05 15:39:59,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93902 states, 93733 states have (on average 1.1727779970768033) internal successors, (109928), 93765 states have internal predecessors, (109928), 104 states have call successors, (104), 40 states have call predecessors, (104), 40 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2021-11-05 15:39:59,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93902 states to 93902 states and 110136 transitions. [2021-11-05 15:39:59,514 INFO L78 Accepts]: Start accepts. Automaton has 93902 states and 110136 transitions. Word has length 23 [2021-11-05 15:39:59,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:39:59,514 INFO L470 AbstractCegarLoop]: Abstraction has 93902 states and 110136 transitions. [2021-11-05 15:39:59,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:39:59,514 INFO L276 IsEmpty]: Start isEmpty. Operand 93902 states and 110136 transitions. [2021-11-05 15:39:59,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-05 15:39:59,516 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:39:59,516 INFO L514 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] [2021-11-05 15:39:59,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 15:39:59,516 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [drm_gem_object_unreference_unlockedErr0ASSERT_VIOLATIONERROR_FUNCTION, drm_gem_object_unreference_unlockedErr1ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-05 15:39:59,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:39:59,517 INFO L85 PathProgramCache]: Analyzing trace with hash 780158383, now seen corresponding path program 1 times [2021-11-05 15:39:59,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:39:59,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138284486] [2021-11-05 15:39:59,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:39:59,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:39:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:39:59,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:39:59,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:39:59,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138284486] [2021-11-05 15:39:59,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138284486] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:39:59,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:39:59,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:39:59,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879412505] [2021-11-05 15:39:59,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:39:59,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:39:59,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:39:59,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:39:59,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:39:59,655 INFO L87 Difference]: Start difference. First operand 93902 states and 110136 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:40:01,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 15:40:04,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:40:04,175 INFO L93 Difference]: Finished difference Result 93902 states and 110136 transitions. [2021-11-05 15:40:04,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:40:04,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-05 15:40:04,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:40:04,375 INFO L225 Difference]: With dead ends: 93902 [2021-11-05 15:40:04,375 INFO L226 Difference]: Without dead ends: 93894 [2021-11-05 15:40:04,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.02ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:40:04,412 INFO L933 BasicCegarLoop]: 14088 mSDtfsCounter, 14046 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2094.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14046 SdHoareTripleChecker+Valid, 14100 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.42ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2276.41ms IncrementalHoareTripleChecker+Time [2021-11-05 15:40:04,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14046 Valid, 14100 Invalid, 20 Unknown, 0 Unchecked, 15.42ms Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 2276.41ms Time] [2021-11-05 15:40:04,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93894 states.