./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 5b36d44f 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-5b36d44 [2021-11-07 12:11:50,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 12:11:50,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 12:11:50,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 12:11:50,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 12:11:50,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 12:11:50,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 12:11:50,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 12:11:50,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 12:11:50,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 12:11:50,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 12:11:50,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 12:11:50,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 12:11:50,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 12:11:50,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 12:11:50,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 12:11:50,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 12:11:50,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 12:11:50,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 12:11:50,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 12:11:50,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 12:11:50,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 12:11:50,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 12:11:50,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 12:11:50,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 12:11:50,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 12:11:50,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 12:11:50,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 12:11:50,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 12:11:50,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 12:11:50,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 12:11:50,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 12:11:50,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 12:11:50,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 12:11:50,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 12:11:50,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 12:11:50,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 12:11:50,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 12:11:50,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 12:11:50,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 12:11:50,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 12:11:50,651 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 12:11:50,680 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 12:11:50,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 12:11:50,682 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 12:11:50,682 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 12:11:50,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 12:11:50,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 12:11:50,685 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 12:11:50,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 12:11:50,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 12:11:50,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 12:11:50,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 12:11:50,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 12:11:50,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 12:11:50,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 12:11:50,687 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 12:11:50,687 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 12:11:50,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 12:11:50,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 12:11:50,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 12:11:50,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 12:11:50,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 12:11:50,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 12:11:50,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 12:11:50,694 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 12:11:50,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 12:11:50,695 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 12:11:50,695 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 12:11:50,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 12:11:50,697 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 12:11:50,697 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e37e45521ffb127b83b9baab443e42b7c078cf8a8451cb2a1813ac325e01717d [2021-11-07 12:11:50,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 12:11:50,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 12:11:50,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 12:11:50,925 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 12:11:50,926 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 12:11:50,927 INFO L432 ainManager$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 [2021-11-07 12:11:50,977 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95e4397ac/078e270b6404490683c8819adddef773/FLAGe77523b3e [2021-11-07 12:11:51,776 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 12:11:51,777 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 [2021-11-07 12:11:51,842 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95e4397ac/078e270b6404490683c8819adddef773/FLAGe77523b3e [2021-11-07 12:11:51,965 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95e4397ac/078e270b6404490683c8819adddef773 [2021-11-07 12:11:51,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 12:11:51,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 12:11:51,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 12:11:51,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 12:11:51,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 12:11:51,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:11:51" (1/1) ... [2021-11-07 12:11:51,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e7fc7dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:51, skipping insertion in model container [2021-11-07 12:11:51,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:11:51" (1/1) ... [2021-11-07 12:11:51,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 12:11:52,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 12:11:54,130 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] [2021-11-07 12:11:54,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 12:11:54,337 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 12:11:54,607 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] [2021-11-07 12:11:54,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 12:11:54,792 INFO L208 MainTranslator]: Completed translation [2021-11-07 12:11:54,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:54 WrapperNode [2021-11-07 12:11:54,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 12:11:54,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 12:11:54,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 12:11:54,796 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 12:11:54,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:54" (1/1) ... [2021-11-07 12:11:54,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:54" (1/1) ... [2021-11-07 12:11:57,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 12:11:57,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 12:11:57,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 12:11:57,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 12:11:57,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:54" (1/1) ... [2021-11-07 12:11:57,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:54" (1/1) ... [2021-11-07 12:11:57,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:54" (1/1) ... [2021-11-07 12:11:57,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:54" (1/1) ... [2021-11-07 12:11:58,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:54" (1/1) ... [2021-11-07 12:11:58,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:54" (1/1) ... [2021-11-07 12:11:59,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:54" (1/1) ... [2021-11-07 12:11:59,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 12:11:59,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 12:11:59,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 12:11:59,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 12:11:59,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:54" (1/1) ... [2021-11-07 12:11:59,433 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 12:11:59,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:11:59,451 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) [2021-11-07 12:11:59,673 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 [2021-11-07 12:11:59,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 12:11:59,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 12:11:59,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 12:11:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure ast_user_framebuffer_destroy [2021-11-07 12:11:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_user_framebuffer_destroy [2021-11-07 12:11:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 12:11:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-07 12:11:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-07 12:11:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 12:11:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 12:11:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 12:11:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 12:11:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 12:11:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 12:11:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-07 12:11:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-07 12:11:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 12:11:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 12:11:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked [2021-11-07 12:11:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked [2021-11-07 12:11:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_free [2021-11-07 12:11:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 12:11:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2021-11-07 12:11:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 12:11:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 12:11:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 12:11:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 12:12:37,409 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; [2021-11-07 12:12:37,459 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 12:12:37,459 INFO L299 CfgBuilder]: Removed 20124 assume(true) statements. [2021-11-07 12:12:37,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:12:37 BoogieIcfgContainer [2021-11-07 12:12:37,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 12:12:37,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 12:12:37,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 12:12:37,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 12:12:37,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:11:51" (1/3) ... [2021-11-07 12:12:37,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2093a458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:12:37, skipping insertion in model container [2021-11-07 12:12:37,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:54" (2/3) ... [2021-11-07 12:12:37,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2093a458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:12:37, skipping insertion in model container [2021-11-07 12:12:37,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:12:37" (3/3) ... [2021-11-07 12:12:37,471 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i [2021-11-07 12:12:37,474 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 12:12:37,475 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-11-07 12:12:37,531 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 12:12:37,539 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 [2021-11-07 12:12:37,540 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-11-07 12:12:37,647 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) [2021-11-07 12:12:37,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 12:12:37,654 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:12:37,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:12:37,655 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)] === [2021-11-07 12:12:37,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:12:37,659 INFO L85 PathProgramCache]: Analyzing trace with hash -838659541, now seen corresponding path program 1 times [2021-11-07 12:12:37,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:12:37,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391667256] [2021-11-07 12:12:37,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:12:37,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:12:38,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:12:38,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:12:38,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:12:38,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391667256] [2021-11-07 12:12:38,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391667256] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:12:38,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:12:38,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:12:38,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489370228] [2021-11-07 12:12:38,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:12:38,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:12:38,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:12:38,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:12:38,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:12:38,305 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) [2021-11-07 12:12:40,388 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 [] [2021-11-07 12:12:41,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:12:41,182 INFO L93 Difference]: Finished difference Result 36034 states and 42507 transitions. [2021-11-07 12:12:41,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:12:41,195 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 [2021-11-07 12:12:41,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:12:41,287 INFO L225 Difference]: With dead ends: 36034 [2021-11-07 12:12:41,287 INFO L226 Difference]: Without dead ends: 24007 [2021-11-07 12:12:41,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.86ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:12:41,311 INFO L933 BasicCegarLoop]: 14127 mSDtfsCounter, 14073 mSDsluCounter, 14095 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2075.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14073 SdHoareTripleChecker+Valid, 28222 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 65.80ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2190.76ms IncrementalHoareTripleChecker+Time [2021-11-07 12:12:41,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14073 Valid, 28222 Invalid, 15 Unknown, 0 Unchecked, 65.80ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2190.76ms Time] [2021-11-07 12:12:41,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24007 states. [2021-11-07 12:12:41,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24007 to 23963. [2021-11-07 12:12:41,760 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) [2021-11-07 12:12:41,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23963 states to 23963 states and 28158 transitions. [2021-11-07 12:12:41,812 INFO L78 Accepts]: Start accepts. Automaton has 23963 states and 28158 transitions. Word has length 15 [2021-11-07 12:12:41,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:12:41,813 INFO L470 AbstractCegarLoop]: Abstraction has 23963 states and 28158 transitions. [2021-11-07 12:12:41,813 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) [2021-11-07 12:12:41,813 INFO L276 IsEmpty]: Start isEmpty. Operand 23963 states and 28158 transitions. [2021-11-07 12:12:41,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-07 12:12:41,816 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:12:41,816 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] [2021-11-07 12:12:41,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 12:12:41,816 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)] === [2021-11-07 12:12:41,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:12:41,817 INFO L85 PathProgramCache]: Analyzing trace with hash -618363749, now seen corresponding path program 1 times [2021-11-07 12:12:41,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:12:41,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542638668] [2021-11-07 12:12:41,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:12:41,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:12:41,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:12:42,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:12:42,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:12:42,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542638668] [2021-11-07 12:12:42,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542638668] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:12:42,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:12:42,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:12:42,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524995693] [2021-11-07 12:12:42,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:12:42,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:12:42,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:12:42,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:12:42,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:12:42,049 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) [2021-11-07 12:12:44,124 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 [] [2021-11-07 12:12:44,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:12:44,764 INFO L93 Difference]: Finished difference Result 23963 states and 28158 transitions. [2021-11-07 12:12:44,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:12:44,764 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 [2021-11-07 12:12:44,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:12:44,827 INFO L225 Difference]: With dead ends: 23963 [2021-11-07 12:12:44,827 INFO L226 Difference]: Without dead ends: 23961 [2021-11-07 12:12:44,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.59ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:12:44,840 INFO L933 BasicCegarLoop]: 14105 mSDtfsCounter, 14088 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2072.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14088 SdHoareTripleChecker+Valid, 14105 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.01ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2218.08ms IncrementalHoareTripleChecker+Time [2021-11-07 12:12:44,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14088 Valid, 14105 Invalid, 2 Unknown, 0 Unchecked, 15.01ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2218.08ms Time] [2021-11-07 12:12:44,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23961 states. [2021-11-07 12:12:45,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23961 to 23961. [2021-11-07 12:12:45,360 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) [2021-11-07 12:12:45,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23961 states to 23961 states and 28156 transitions. [2021-11-07 12:12:45,403 INFO L78 Accepts]: Start accepts. Automaton has 23961 states and 28156 transitions. Word has length 20 [2021-11-07 12:12:45,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:12:45,404 INFO L470 AbstractCegarLoop]: Abstraction has 23961 states and 28156 transitions. [2021-11-07 12:12:45,404 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) [2021-11-07 12:12:45,404 INFO L276 IsEmpty]: Start isEmpty. Operand 23961 states and 28156 transitions. [2021-11-07 12:12:45,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-07 12:12:45,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:12:45,410 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] [2021-11-07 12:12:45,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 12:12:45,410 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)] === [2021-11-07 12:12:45,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:12:45,411 INFO L85 PathProgramCache]: Analyzing trace with hash 2054184779, now seen corresponding path program 1 times [2021-11-07 12:12:45,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:12:45,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393534138] [2021-11-07 12:12:45,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:12:45,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:12:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:12:45,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:12:45,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:12:45,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393534138] [2021-11-07 12:12:45,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393534138] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:12:45,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:12:45,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:12:45,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206979220] [2021-11-07 12:12:45,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:12:45,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:12:45,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:12:45,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:12:45,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:12:45,643 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) [2021-11-07 12:12:46,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:12:46,592 INFO L93 Difference]: Finished difference Result 71066 states and 83376 transitions. [2021-11-07 12:12:46,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:12:46,592 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 [2021-11-07 12:12:46,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:12:46,687 INFO L225 Difference]: With dead ends: 71066 [2021-11-07 12:12:46,688 INFO L226 Difference]: Without dead ends: 47108 [2021-11-07 12:12:46,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.83ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:12:46,741 INFO L933 BasicCegarLoop]: 14121 mSDtfsCounter, 13549 mSDsluCounter, 14081 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 103.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13549 SdHoareTripleChecker+Valid, 28202 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.50ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 118.76ms IncrementalHoareTripleChecker+Time [2021-11-07 12:12:46,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13549 Valid, 28202 Invalid, 24 Unknown, 0 Unchecked, 28.50ms Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 118.76ms Time] [2021-11-07 12:12:46,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47108 states. [2021-11-07 12:12:47,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47108 to 47056. [2021-11-07 12:12:47,765 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) [2021-11-07 12:12:47,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47056 states to 47056 states and 55186 transitions. [2021-11-07 12:12:47,839 INFO L78 Accepts]: Start accepts. Automaton has 47056 states and 55186 transitions. Word has length 20 [2021-11-07 12:12:47,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:12:47,840 INFO L470 AbstractCegarLoop]: Abstraction has 47056 states and 55186 transitions. [2021-11-07 12:12:47,840 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) [2021-11-07 12:12:47,840 INFO L276 IsEmpty]: Start isEmpty. Operand 47056 states and 55186 transitions. [2021-11-07 12:12:47,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 12:12:47,842 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:12:47,842 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] [2021-11-07 12:12:47,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 12:12:47,842 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)] === [2021-11-07 12:12:47,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:12:47,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1989376129, now seen corresponding path program 1 times [2021-11-07 12:12:47,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:12:47,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560817154] [2021-11-07 12:12:47,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:12:47,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:12:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:12:48,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:12:48,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:12:48,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560817154] [2021-11-07 12:12:48,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560817154] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:12:48,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:12:48,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:12:48,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853894674] [2021-11-07 12:12:48,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:12:48,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:12:48,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:12:48,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:12:48,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:12:48,190 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) [2021-11-07 12:12:50,253 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 [] [2021-11-07 12:12:51,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:12:51,069 INFO L93 Difference]: Finished difference Result 47056 states and 55186 transitions. [2021-11-07 12:12:51,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:12:51,069 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 [2021-11-07 12:12:51,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:12:51,162 INFO L225 Difference]: With dead ends: 47056 [2021-11-07 12:12:51,163 INFO L226 Difference]: Without dead ends: 47054 [2021-11-07 12:12:51,176 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 [2021-11-07 12:12:51,182 INFO L933 BasicCegarLoop]: 14103 mSDtfsCounter, 14085 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2063.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14085 SdHoareTripleChecker+Valid, 14103 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.04ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2226.67ms IncrementalHoareTripleChecker+Time [2021-11-07 12:12:51,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14085 Valid, 14103 Invalid, 2 Unknown, 0 Unchecked, 14.04ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2226.67ms Time] [2021-11-07 12:12:51,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47054 states. [2021-11-07 12:12:52,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47054 to 47054. [2021-11-07 12:12:52,163 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) [2021-11-07 12:12:52,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47054 states to 47054 states and 55184 transitions. [2021-11-07 12:12:52,238 INFO L78 Accepts]: Start accepts. Automaton has 47054 states and 55184 transitions. Word has length 21 [2021-11-07 12:12:52,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:12:52,239 INFO L470 AbstractCegarLoop]: Abstraction has 47054 states and 55184 transitions. [2021-11-07 12:12:52,239 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) [2021-11-07 12:12:52,239 INFO L276 IsEmpty]: Start isEmpty. Operand 47054 states and 55184 transitions. [2021-11-07 12:12:52,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 12:12:52,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:12:52,240 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] [2021-11-07 12:12:52,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 12:12:52,241 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)] === [2021-11-07 12:12:52,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:12:52,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1541086939, now seen corresponding path program 1 times [2021-11-07 12:12:52,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:12:52,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724790723] [2021-11-07 12:12:52,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:12:52,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:12:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:12:52,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:12:52,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:12:52,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724790723] [2021-11-07 12:12:52,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724790723] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:12:52,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:12:52,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:12:52,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085314064] [2021-11-07 12:12:52,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:12:52,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:12:52,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:12:52,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:12:52,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:12:52,430 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) [2021-11-07 12:12:54,494 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 [] [2021-11-07 12:12:55,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:12:55,486 INFO L93 Difference]: Finished difference Result 47054 states and 55184 transitions. [2021-11-07 12:12:55,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:12:55,486 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 [2021-11-07 12:12:55,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:12:55,598 INFO L225 Difference]: With dead ends: 47054 [2021-11-07 12:12:55,598 INFO L226 Difference]: Without dead ends: 47052 [2021-11-07 12:12:55,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.11ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:12:55,619 INFO L933 BasicCegarLoop]: 14101 mSDtfsCounter, 14082 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2060.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14082 SdHoareTripleChecker+Valid, 14101 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.53ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2268.60ms IncrementalHoareTripleChecker+Time [2021-11-07 12:12:55,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14082 Valid, 14101 Invalid, 2 Unknown, 0 Unchecked, 14.53ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2268.60ms Time] [2021-11-07 12:12:55,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47052 states. [2021-11-07 12:12:56,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47052 to 47052. [2021-11-07 12:12:56,907 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) [2021-11-07 12:12:56,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47052 states to 47052 states and 55182 transitions. [2021-11-07 12:12:56,975 INFO L78 Accepts]: Start accepts. Automaton has 47052 states and 55182 transitions. Word has length 22 [2021-11-07 12:12:56,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:12:56,976 INFO L470 AbstractCegarLoop]: Abstraction has 47052 states and 55182 transitions. [2021-11-07 12:12:56,976 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) [2021-11-07 12:12:56,976 INFO L276 IsEmpty]: Start isEmpty. Operand 47052 states and 55182 transitions. [2021-11-07 12:12:56,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 12:12:56,977 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:12:56,977 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] [2021-11-07 12:12:56,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 12:12:56,978 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)] === [2021-11-07 12:12:56,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:12:56,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1557476202, now seen corresponding path program 1 times [2021-11-07 12:12:56,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:12:56,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818543849] [2021-11-07 12:12:56,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:12:56,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:12:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:12:57,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:12:57,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:12:57,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818543849] [2021-11-07 12:12:57,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818543849] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:12:57,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:12:57,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:12:57,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631325808] [2021-11-07 12:12:57,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:12:57,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:12:57,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:12:57,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:12:57,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:12:57,127 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) [2021-11-07 12:12:59,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:12:59,404 INFO L93 Difference]: Finished difference Result 141013 states and 165358 transitions. [2021-11-07 12:12:59,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:12:59,405 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 [2021-11-07 12:12:59,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:12:59,573 INFO L225 Difference]: With dead ends: 141013 [2021-11-07 12:12:59,573 INFO L226 Difference]: Without dead ends: 93964 [2021-11-07 12:12:59,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.82ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:12:59,648 INFO L933 BasicCegarLoop]: 14661 mSDtfsCounter, 14051 mSDsluCounter, 14093 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14051 SdHoareTripleChecker+Valid, 28754 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.39ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.20ms IncrementalHoareTripleChecker+Time [2021-11-07 12:12:59,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14051 Valid, 28754 Invalid, 8 Unknown, 0 Unchecked, 44.39ms Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 75.20ms Time] [2021-11-07 12:12:59,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93964 states. [2021-11-07 12:13:02,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93964 to 93904. [2021-11-07 12:13:02,208 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) [2021-11-07 12:13:02,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93904 states to 93904 states and 110138 transitions. [2021-11-07 12:13:02,603 INFO L78 Accepts]: Start accepts. Automaton has 93904 states and 110138 transitions. Word has length 23 [2021-11-07 12:13:02,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:13:02,603 INFO L470 AbstractCegarLoop]: Abstraction has 93904 states and 110138 transitions. [2021-11-07 12:13:02,603 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) [2021-11-07 12:13:02,603 INFO L276 IsEmpty]: Start isEmpty. Operand 93904 states and 110138 transitions. [2021-11-07 12:13:02,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 12:13:02,604 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:02,605 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] [2021-11-07 12:13:02,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 12:13:02,605 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)] === [2021-11-07 12:13:02,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:02,605 INFO L85 PathProgramCache]: Analyzing trace with hash -529023927, now seen corresponding path program 1 times [2021-11-07 12:13:02,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:02,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510087245] [2021-11-07 12:13:02,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:02,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:02,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:13:02,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:02,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510087245] [2021-11-07 12:13:02,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510087245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:02,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:02,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:13:02,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063715500] [2021-11-07 12:13:02,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:02,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:13:02,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:02,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:13:02,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:02,756 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) [2021-11-07 12:13:04,818 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 [] [2021-11-07 12:13:07,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:13:07,084 INFO L93 Difference]: Finished difference Result 93904 states and 110138 transitions. [2021-11-07 12:13:07,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:13:07,092 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 [2021-11-07 12:13:07,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:13:07,247 INFO L225 Difference]: With dead ends: 93904 [2021-11-07 12:13:07,248 INFO L226 Difference]: Without dead ends: 93902 [2021-11-07 12:13:07,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.85ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:07,277 INFO L933 BasicCegarLoop]: 14099 mSDtfsCounter, 14079 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2060.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14079 SdHoareTripleChecker+Valid, 14099 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.62ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2261.73ms IncrementalHoareTripleChecker+Time [2021-11-07 12:13:07,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14079 Valid, 14099 Invalid, 2 Unknown, 0 Unchecked, 15.62ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2261.73ms Time] [2021-11-07 12:13:07,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93902 states. [2021-11-07 12:13:09,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93902 to 93902. [2021-11-07 12:13:09,795 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) [2021-11-07 12:13:09,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93902 states to 93902 states and 110136 transitions. [2021-11-07 12:13:09,963 INFO L78 Accepts]: Start accepts. Automaton has 93902 states and 110136 transitions. Word has length 23 [2021-11-07 12:13:09,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:13:09,964 INFO L470 AbstractCegarLoop]: Abstraction has 93902 states and 110136 transitions. [2021-11-07 12:13:09,964 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) [2021-11-07 12:13:09,964 INFO L276 IsEmpty]: Start isEmpty. Operand 93902 states and 110136 transitions. [2021-11-07 12:13:09,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 12:13:09,965 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:09,965 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] [2021-11-07 12:13:09,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 12:13:09,966 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)] === [2021-11-07 12:13:09,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:09,966 INFO L85 PathProgramCache]: Analyzing trace with hash 780158383, now seen corresponding path program 1 times [2021-11-07 12:13:09,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:09,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113267454] [2021-11-07 12:13:09,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:09,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:10,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:13:10,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:10,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113267454] [2021-11-07 12:13:10,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113267454] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:10,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:10,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:13:10,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779660003] [2021-11-07 12:13:10,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:10,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:13:10,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:10,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:13:10,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:10,112 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) [2021-11-07 12:13:12,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:13:15,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:13:15,019 INFO L93 Difference]: Finished difference Result 93902 states and 110136 transitions. [2021-11-07 12:13:15,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:13:15,019 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 [2021-11-07 12:13:15,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:13:15,190 INFO L225 Difference]: With dead ends: 93902 [2021-11-07 12:13:15,191 INFO L226 Difference]: Without dead ends: 93894 [2021-11-07 12:13:15,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.11ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:15,225 INFO L933 BasicCegarLoop]: 14088 mSDtfsCounter, 14046 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2376.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14046 SdHoareTripleChecker+Valid, 14100 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.38ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2562.13ms IncrementalHoareTripleChecker+Time [2021-11-07 12:13:15,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14046 Valid, 14100 Invalid, 20 Unknown, 0 Unchecked, 18.38ms Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 2562.13ms Time] [2021-11-07 12:13:15,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93894 states.