./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.7.3/main17_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebda2cd-47cb-4273-9172-fced1731b9af/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebda2cd-47cb-4273-9172-fced1731b9af/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebda2cd-47cb-4273-9172-fced1731b9af/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebda2cd-47cb-4273-9172-fced1731b9af/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.7.3/main17_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebda2cd-47cb-4273-9172-fced1731b9af/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebda2cd-47cb-4273-9172-fced1731b9af/bin/utaipan-EQgc7hIp5V --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 600276f17a788d89542ab4bc1cb35a7ee9259aa7d76b73bd966dc12f7082896c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:53:32,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:53:32,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:53:32,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:53:32,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:53:32,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:53:32,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:53:32,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:53:32,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:53:32,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:53:32,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:53:32,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:53:32,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:53:32,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:53:32,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:53:32,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:53:32,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:53:32,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:53:32,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:53:32,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:53:32,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:53:32,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:53:32,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:53:32,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:53:32,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:53:32,956 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:53:32,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:53:32,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:53:32,960 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:53:32,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:53:32,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:53:32,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:53:32,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:53:32,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:53:32,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:53:32,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:53:32,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:53:32,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:53:32,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:53:32,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:53:32,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:53:32,975 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebda2cd-47cb-4273-9172-fced1731b9af/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:53:33,036 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:53:33,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:53:33,038 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:53:33,038 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:53:33,047 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:53:33,048 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:53:33,048 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:53:33,048 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:53:33,049 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:53:33,049 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:53:33,050 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:53:33,051 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:53:33,051 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:53:33,052 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:53:33,052 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:53:33,052 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:53:33,053 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:53:33,053 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:53:33,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:53:33,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:53:33,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:53:33,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:53:33,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:53:33,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:53:33,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:53:33,056 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:53:33,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:53:33,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:53:33,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:53:33,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:53:33,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:53:33,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:53:33,061 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:53:33,061 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:53:33,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:53:33,062 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:53:33,062 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:53:33,062 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:53:33,062 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebda2cd-47cb-4273-9172-fced1731b9af/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebda2cd-47cb-4273-9172-fced1731b9af/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 600276f17a788d89542ab4bc1cb35a7ee9259aa7d76b73bd966dc12f7082896c [2021-11-23 02:53:33,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:53:33,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:53:33,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:53:33,428 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:53:33,429 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:53:33,431 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebda2cd-47cb-4273-9172-fced1731b9af/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-3.7.3/main17_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i [2021-11-23 02:53:33,521 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebda2cd-47cb-4273-9172-fced1731b9af/bin/utaipan-EQgc7hIp5V/data/3cb4af313/b70f5b3d684245b0af3dd26e147a1c7a/FLAG2ceaf19ad [2021-11-23 02:53:34,766 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:53:34,767 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebda2cd-47cb-4273-9172-fced1731b9af/sv-benchmarks/c/ldv-linux-3.7.3/main17_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i [2021-11-23 02:53:34,869 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebda2cd-47cb-4273-9172-fced1731b9af/bin/utaipan-EQgc7hIp5V/data/3cb4af313/b70f5b3d684245b0af3dd26e147a1c7a/FLAG2ceaf19ad [2021-11-23 02:53:34,914 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebda2cd-47cb-4273-9172-fced1731b9af/bin/utaipan-EQgc7hIp5V/data/3cb4af313/b70f5b3d684245b0af3dd26e147a1c7a [2021-11-23 02:53:34,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:53:34,920 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:53:34,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:53:34,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:53:34,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:53:34,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:53:34" (1/1) ... [2021-11-23 02:53:34,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245e664e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:34, skipping insertion in model container [2021-11-23 02:53:34,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:53:34" (1/1) ... [2021-11-23 02:53:34,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:53:35,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:53:47,053 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebda2cd-47cb-4273-9172-fced1731b9af/sv-benchmarks/c/ldv-linux-3.7.3/main17_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i[722028,722041] [2021-11-23 02:53:47,735 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:53:47,818 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:53:49,045 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebda2cd-47cb-4273-9172-fced1731b9af/sv-benchmarks/c/ldv-linux-3.7.3/main17_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i[722028,722041] [2021-11-23 02:53:49,082 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:53:49,902 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:53:49,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:49 WrapperNode [2021-11-23 02:53:49,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:53:49,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:53:49,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:53:49,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:53:49,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:49" (1/1) ... [2021-11-23 02:53:50,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:49" (1/1) ... [2021-11-23 02:53:50,803 INFO L137 Inliner]: procedures = 1046, calls = 9656, calls flagged for inlining = 360, calls inlined = 140, statements flattened = 6940 [2021-11-23 02:53:50,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:53:50,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:53:50,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:53:50,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:53:50,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:49" (1/1) ... [2021-11-23 02:53:50,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:49" (1/1) ... [2021-11-23 02:53:50,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:49" (1/1) ... [2021-11-23 02:53:50,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:49" (1/1) ... [2021-11-23 02:53:51,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:49" (1/1) ... [2021-11-23 02:53:51,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:49" (1/1) ... [2021-11-23 02:53:51,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:49" (1/1) ... [2021-11-23 02:53:51,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:53:51,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:53:51,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:53:51,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:53:51,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:49" (1/1) ... [2021-11-23 02:53:51,524 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:53:51,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebda2cd-47cb-4273-9172-fced1731b9af/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:53:51,558 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebda2cd-47cb-4273-9172-fced1731b9af/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:53:51,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebda2cd-47cb-4273-9172-fced1731b9af/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:53:51,619 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dummy_query_bo_prepare [2021-11-23 02:53:51,619 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dummy_query_bo_prepare [2021-11-23 02:53:51,619 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_framebuffer_dmabuf_destroy [2021-11-23 02:53:51,619 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_framebuffer_dmabuf_destroy [2021-11-23 02:53:51,620 INFO L130 BoogieDeclarations]: Found specification of procedure idr_destroy [2021-11-23 02:53:51,620 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_destroy [2021-11-23 02:53:51,620 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_init [2021-11-23 02:53:51,620 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_init [2021-11-23 02:53:51,620 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-11-23 02:53:51,621 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-11-23 02:53:51,621 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-23 02:53:51,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-23 02:53:51,621 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_crtc_set_config [2021-11-23 02:53:51,621 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_crtc_set_config [2021-11-23 02:53:51,622 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_eu_backoff_reservation [2021-11-23 02:53:51,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_eu_backoff_reservation [2021-11-23 02:53:51,622 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mtrr_del [2021-11-23 02:53:51,622 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mtrr_del [2021-11-23 02:53:51,622 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_move_buffer [2021-11-23 02:53:51,623 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_move_buffer [2021-11-23 02:53:51,623 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_firstopen [2021-11-23 02:53:51,623 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_firstopen [2021-11-23 02:53:51,623 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_lastclose [2021-11-23 02:53:51,623 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_lastclose [2021-11-23 02:53:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_pause_all [2021-11-23 02:53:51,624 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_pause_all [2021-11-23 02:53:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_framebuffer_surface_destroy [2021-11-23 02:53:51,624 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_framebuffer_surface_destroy [2021-11-23 02:53:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_destroy [2021-11-23 02:53:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_destroy [2021-11-23 02:53:51,625 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-23 02:53:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-23 02:53:51,626 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-23 02:53:51,626 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-23 02:53:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-23 02:53:51,626 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-23 02:53:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-23 02:53:51,627 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_unreserve [2021-11-23 02:53:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_unreserve [2021-11-23 02:53:51,627 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-23 02:53:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-23 02:53:51,628 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kmap [2021-11-23 02:53:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kmap [2021-11-23 02:53:51,628 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 02:53:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 02:53:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_backing_free [2021-11-23 02:53:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_backing_free [2021-11-23 02:53:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_to_vram_or_gmr [2021-11-23 02:53:51,630 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_to_vram_or_gmr [2021-11-23 02:53:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kunmap [2021-11-23 02:53:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kunmap [2021-11-23 02:53:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2021-11-23 02:53:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2021-11-23 02:53:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:53:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_commit_list [2021-11-23 02:53:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_commit_list [2021-11-23 02:53:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_hw_mutex [2021-11-23 02:53:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_hw_mutex [2021-11-23 02:53:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_emit_dummy_query [2021-11-23 02:53:51,634 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_emit_dummy_query [2021-11-23 02:53:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_hw_context_destroy [2021-11-23 02:53:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_hw_context_destroy [2021-11-23 02:53:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_del_active [2021-11-23 02:53:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_del_active [2021-11-23 02:53:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_mem_global_alloc [2021-11-23 02:53:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_mem_global_alloc [2021-11-23 02:53:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ttm_destroy [2021-11-23 02:53:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ttm_destroy [2021-11-23 02:53:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-23 02:53:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-23 02:53:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_resource_release [2021-11-23 02:53:51,637 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_resource_release [2021-11-23 02:53:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_base_object_init [2021-11-23 02:53:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_base_object_init [2021-11-23 02:53:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:53:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_seqno_waiter_add [2021-11-23 02:53:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_seqno_waiter_add [2021-11-23 02:53:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_pm_complete [2021-11-23 02:53:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_pm_complete [2021-11-23 02:53:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_crtc_destroy [2021-11-23 02:53:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_crtc_destroy [2021-11-23 02:53:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-23 02:53:51,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-23 02:53:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dma_buffer [2021-11-23 02:53:51,641 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dma_buffer [2021-11-23 02:53:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:53:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_cursor_update_image [2021-11-23 02:53:51,642 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_cursor_update_image [2021-11-23 02:53:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_display_unit_cleanup [2021-11-23 02:53:51,644 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_display_unit_cleanup [2021-11-23 02:53:51,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:53:51,644 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 02:53:51,645 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_destroy [2021-11-23 02:53:51,645 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_destroy [2021-11-23 02:53:51,646 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_user_context_base_release [2021-11-23 02:53:51,646 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_user_context_base_release [2021-11-23 02:53:51,646 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_seqno_passed [2021-11-23 02:53:51,646 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_seqno_passed [2021-11-23 02:53:51,646 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-23 02:53:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-23 02:53:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_have_pitchlock [2021-11-23 02:53:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_have_pitchlock [2021-11-23 02:53:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-23 02:53:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-23 02:53:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_stream_destroy [2021-11-23 02:53:51,648 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_stream_destroy [2021-11-23 02:53:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 02:53:51,649 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 02:53:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_write [2021-11-23 02:53:51,649 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_write [2021-11-23 02:53:51,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex [2021-11-23 02:53:51,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex [2021-11-23 02:53:51,654 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_wait [2021-11-23 02:53:51,654 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_wait [2021-11-23 02:53:51,655 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_kms_close [2021-11-23 02:53:51,655 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_kms_close [2021-11-23 02:53:51,656 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-23 02:53:51,657 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-23 02:53:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:53:51,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:53:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_kms_write_svga [2021-11-23 02:53:51,664 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_kms_write_svga [2021-11-23 02:53:51,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_release_mutex [2021-11-23 02:53:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_release_mutex [2021-11-23 02:53:51,665 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_init [2021-11-23 02:53:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_init [2021-11-23 02:53:51,666 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fallback_wait [2021-11-23 02:53:51,666 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fallback_wait [2021-11-23 02:53:51,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:53:51,666 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_reference [2021-11-23 02:53:51,666 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_reference [2021-11-23 02:53:51,666 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_release [2021-11-23 02:53:51,667 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_release [2021-11-23 02:53:51,667 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_hw_surface_destroy [2021-11-23 02:53:51,667 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_hw_surface_destroy [2021-11-23 02:53:51,667 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-23 02:53:51,667 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-23 02:53:51,668 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-23 02:53:51,668 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-23 02:53:51,668 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_reserve [2021-11-23 02:53:51,668 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_reserve [2021-11-23 02:53:51,668 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-23 02:53:51,668 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-23 02:53:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fb_off [2021-11-23 02:53:51,669 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fb_off [2021-11-23 02:53:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 02:53:51,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 02:53:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:53:51,669 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:53:51,670 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_write_lock [2021-11-23 02:53:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_write_lock [2021-11-23 02:53:51,670 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_3d_resource_dec [2021-11-23 02:53:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_3d_resource_dec [2021-11-23 02:53:51,670 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-23 02:53:51,670 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-23 02:53:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_device_release [2021-11-23 02:53:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_device_release [2021-11-23 02:53:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:53:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 02:53:51,671 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 02:53:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2021-11-23 02:53:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:53:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-11-23 02:53:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-11-23 02:53:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-11-23 02:53:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-11-23 02:53:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ttm_global_release [2021-11-23 02:53:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ttm_global_release [2021-11-23 02:53:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-23 02:53:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-23 02:53:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-23 02:53:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-23 02:53:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-23 02:53:51,674 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-23 02:53:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_add_active [2021-11-23 02:53:51,674 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_add_active [2021-11-23 02:53:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fpriv [2021-11-23 02:53:51,674 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fpriv [2021-11-23 02:53:51,675 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-23 02:53:51,675 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-23 02:53:51,675 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_eu_reserve_buffers [2021-11-23 02:53:51,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_eu_reserve_buffers [2021-11-23 02:53:51,675 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_kmap_obj_virtual [2021-11-23 02:53:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_kmap_obj_virtual [2021-11-23 02:53:51,676 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_to_start_of_vram [2021-11-23 02:53:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_to_start_of_vram [2021-11-23 02:53:51,676 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-23 02:53:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-23 02:53:51,676 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fb_set_par [2021-11-23 02:53:51,677 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fb_set_par [2021-11-23 02:53:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_pool_populate [2021-11-23 02:53:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cmdbuf_mutex [2021-11-23 02:53:51,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cmdbuf_mutex [2021-11-23 02:53:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cmdbuf_mutex [2021-11-23 02:53:51,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cmdbuf_mutex [2021-11-23 02:53:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_crtc_destroy [2021-11-23 02:53:51,678 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_crtc_destroy [2021-11-23 02:53:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_clean_mm [2021-11-23 02:53:51,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_clean_mm [2021-11-23 02:53:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_send_stop [2021-11-23 02:53:51,678 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_send_stop [2021-11-23 02:53:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:53:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure drm_vblank_cleanup [2021-11-23 02:53:51,679 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_vblank_cleanup [2021-11-23 02:53:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-23 02:53:51,679 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-23 02:53:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:53:51,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:53:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_unref [2021-11-23 02:53:51,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_unref [2021-11-23 02:53:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_create [2021-11-23 02:53:51,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_create [2021-11-23 02:53:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_resource_unreference [2021-11-23 02:53:51,681 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_resource_unreference [2021-11-23 02:53:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2021-11-23 02:53:51,681 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2021-11-23 02:53:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_bo_get_guest_ptr [2021-11-23 02:53:51,681 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_bo_get_guest_ptr [2021-11-23 02:53:51,682 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_to_placement [2021-11-23 02:53:51,682 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_to_placement [2021-11-23 02:53:51,682 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-23 02:53:51,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-23 02:53:51,682 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fences_update [2021-11-23 02:53:51,682 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fences_update [2021-11-23 02:53:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sync_obj_unref [2021-11-23 02:53:51,683 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sync_obj_unref [2021-11-23 02:53:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_crtc_set_config [2021-11-23 02:53:51,683 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_crtc_set_config [2021-11-23 02:53:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-11-23 02:53:51,683 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-11-23 02:53:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-23 02:53:51,684 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-23 02:53:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2021-11-23 02:53:51,684 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2021-11-23 02:53:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_is_full [2021-11-23 02:53:51,684 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_is_full [2021-11-23 02:53:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_send_put [2021-11-23 02:53:51,685 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_send_put [2021-11-23 02:53:51,686 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_marker_pull [2021-11-23 02:53:51,690 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_marker_pull [2021-11-23 02:53:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure fb_deferred_io_cleanup [2021-11-23 02:53:51,691 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_deferred_io_cleanup [2021-11-23 02:53:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-23 02:53:51,691 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-23 02:53:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_update_seqno [2021-11-23 02:53:51,692 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_update_seqno [2021-11-23 02:53:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_fb_surf_mutex [2021-11-23 02:53:51,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_fb_surf_mutex [2021-11-23 02:53:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-23 02:53:51,695 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-23 02:53:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure getrawmonotonic [2021-11-23 02:53:51,696 INFO L138 BoogieDeclarations]: Found implementation of procedure getrawmonotonic [2021-11-23 02:53:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fences_perform_actions [2021-11-23 02:53:51,696 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fences_perform_actions [2021-11-23 02:53:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_encoder_destroy [2021-11-23 02:53:51,696 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_encoder_destroy [2021-11-23 02:53:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure fill_flush [2021-11-23 02:53:51,697 INFO L138 BoogieDeclarations]: Found implementation of procedure fill_flush [2021-11-23 02:53:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2021-11-23 02:53:51,697 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2021-11-23 02:53:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:53:51,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:53:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_unreference [2021-11-23 02:53:51,698 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_unreference [2021-11-23 02:53:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_surface_unreference [2021-11-23 02:53:51,698 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_surface_unreference [2021-11-23 02:53:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_eu_fence_buffer_objects [2021-11-23 02:53:51,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_eu_fence_buffer_objects [2021-11-23 02:53:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_fifo_mutex [2021-11-23 02:53:51,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_fifo_mutex [2021-11-23 02:53:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 02:53:51,699 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 02:53:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_wait [2021-11-23 02:53:51,699 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_wait [2021-11-23 02:53:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_pm_prepare [2021-11-23 02:53:51,699 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_pm_prepare [2021-11-23 02:53:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure drm_master_put [2021-11-23 02:53:51,700 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_master_put [2021-11-23 02:53:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-23 02:53:51,700 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-23 02:53:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_goal_irq_mutex [2021-11-23 02:53:51,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_goal_irq_mutex [2021-11-23 02:53:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_bo_pin [2021-11-23 02:53:51,701 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_bo_pin [2021-11-23 02:53:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:53:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-23 02:53:51,701 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-23 02:53:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_init [2021-11-23 02:53:51,702 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_init [2021-11-23 02:53:51,702 INFO L130 BoogieDeclarations]: Found specification of procedure timespec_sub [2021-11-23 02:53:51,702 INFO L138 BoogieDeclarations]: Found implementation of procedure timespec_sub [2021-11-23 02:53:51,702 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_close [2021-11-23 02:53:51,702 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_close [2021-11-23 02:53:51,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:53:51,702 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_pm_resume [2021-11-23 02:53:51,703 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_pm_resume [2021-11-23 02:53:51,703 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 02:53:51,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 02:53:51,703 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_unref [2021-11-23 02:53:51,703 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_unref [2021-11-23 02:53:51,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:53:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fb_close [2021-11-23 02:53:51,704 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fb_close [2021-11-23 02:53:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ttm_unbind [2021-11-23 02:53:51,704 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ttm_unbind [2021-11-23 02:53:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-11-23 02:53:51,704 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-11-23 02:53:51,705 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_pm_suspend [2021-11-23 02:53:51,705 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_pm_suspend [2021-11-23 02:53:51,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:53:51,705 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:53:51,705 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_unpin [2021-11-23 02:53:51,705 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_unpin [2021-11-23 02:53:51,705 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_kms_restore_vga [2021-11-23 02:53:51,706 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_kms_restore_vga [2021-11-23 02:53:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_request_device [2021-11-23 02:53:51,706 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_request_device [2021-11-23 02:53:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_unreference [2021-11-23 02:53:51,706 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_unreference [2021-11-23 02:53:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-23 02:53:51,707 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-23 02:53:51,707 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-23 02:53:51,707 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-23 02:53:51,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex [2021-11-23 02:53:51,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex [2021-11-23 02:53:51,707 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_unref [2021-11-23 02:53:51,707 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_unref [2021-11-23 02:53:51,708 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_fifo_down [2021-11-23 02:53:51,708 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_fifo_down [2021-11-23 02:53:51,708 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_connector_destroy [2021-11-23 02:53:51,708 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_connector_destroy [2021-11-23 02:53:51,708 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_read [2021-11-23 02:53:51,708 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_read [2021-11-23 02:53:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2021-11-23 02:53:51,709 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2021-11-23 02:53:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:53:51,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:53:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:53:51,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:53:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_destroy_locked [2021-11-23 02:53:51,710 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_destroy_locked [2021-11-23 02:53:51,710 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_fifo_destroy [2021-11-23 02:53:51,710 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_fifo_destroy [2021-11-23 02:53:51,710 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_pool_unpopulate [2021-11-23 02:53:51,710 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_seqno_waiter_remove [2021-11-23 02:53:51,710 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_seqno_waiter_remove [2021-11-23 02:53:51,711 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_user_stream_base_release [2021-11-23 02:53:51,711 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_user_stream_base_release [2021-11-23 02:53:51,711 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_release_device [2021-11-23 02:53:51,711 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_release_device [2021-11-23 02:53:51,711 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_validate [2021-11-23 02:53:51,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_validate [2021-11-23 02:53:51,711 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_driver_unload [2021-11-23 02:53:51,712 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_driver_unload [2021-11-23 02:53:51,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_fb_surf_mutex [2021-11-23 02:53:51,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_fb_surf_mutex [2021-11-23 02:53:51,712 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-23 02:53:51,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-23 02:53:51,712 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-23 02:53:51,712 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-23 02:53:51,713 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_mem_global_free [2021-11-23 02:53:51,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_mem_global_free [2021-11-23 02:53:51,713 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_write_unlock [2021-11-23 02:53:51,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_write_unlock [2021-11-23 02:53:51,713 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-23 02:53:51,713 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-23 02:53:51,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:53:51,714 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_surface_destroy_encode [2021-11-23 02:53:51,714 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_surface_destroy_encode [2021-11-23 02:53:51,714 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_work_func [2021-11-23 02:53:51,714 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_work_func [2021-11-23 02:53:51,714 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_update_stream [2021-11-23 02:53:51,714 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_update_stream [2021-11-23 02:53:51,715 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_reference [2021-11-23 02:53:51,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_reference [2021-11-23 02:53:51,715 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2021-11-23 02:53:51,716 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2021-11-23 02:53:51,716 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_connector_destroy [2021-11-23 02:53:51,716 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_connector_destroy [2021-11-23 02:53:51,717 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_encoder_destroy [2021-11-23 02:53:51,717 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_encoder_destroy [2021-11-23 02:53:51,717 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_cursor_update_dmabuf [2021-11-23 02:53:51,717 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_cursor_update_dmabuf [2021-11-23 02:53:51,717 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-23 02:53:51,717 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-23 02:53:51,718 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 02:53:51,718 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 02:53:51,718 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_framebuffer_dmabuf_unpin [2021-11-23 02:53:51,718 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_framebuffer_dmabuf_unpin [2021-11-23 02:53:51,718 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_user_fence_base_release [2021-11-23 02:53:51,718 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_user_fence_base_release [2021-11-23 02:53:51,718 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~uint32_t~0~TO~~bool~0 [2021-11-23 02:53:51,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~uint32_t~0~TO~~bool~0 [2021-11-23 02:53:51,719 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-23 02:53:51,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-23 02:53:51,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_release_mutex [2021-11-23 02:53:51,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_release_mutex [2021-11-23 02:53:51,719 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_3d_resource_inc [2021-11-23 02:53:51,719 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_3d_resource_inc [2021-11-23 02:53:51,720 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_stop [2021-11-23 02:53:51,720 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_stop [2021-11-23 02:53:51,720 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_priv [2021-11-23 02:53:51,720 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_priv [2021-11-23 02:53:51,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:53:51,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_goal_irq_mutex [2021-11-23 02:53:51,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_goal_irq_mutex [2021-11-23 02:53:51,721 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_commit [2021-11-23 02:53:51,721 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_commit [2021-11-23 02:53:51,721 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_init [2021-11-23 02:53:51,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-11-23 02:53:51,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-11-23 02:53:51,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_hw_mutex [2021-11-23 02:53:51,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_hw_mutex [2021-11-23 02:53:51,722 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_event_fence_action_cleanup [2021-11-23 02:53:51,722 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_event_fence_action_cleanup [2021-11-23 02:53:51,722 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_execbuf_unpin_panic [2021-11-23 02:53:51,722 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_execbuf_unpin_panic [2021-11-23 02:53:51,722 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_backing_alloc [2021-11-23 02:53:51,722 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_backing_alloc [2021-11-23 02:53:51,723 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_signaled [2021-11-23 02:53:51,723 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_signaled [2021-11-23 02:53:51,723 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_resume_all [2021-11-23 02:53:51,723 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_resume_all [2021-11-23 02:53:51,723 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_reserve [2021-11-23 02:53:51,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_reserve [2021-11-23 02:53:51,723 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_idle [2021-11-23 02:53:51,724 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_idle [2021-11-23 02:53:51,724 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_reference [2021-11-23 02:53:51,724 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_reference [2021-11-23 02:53:51,724 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 02:53:51,724 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 02:53:51,724 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_base_object_unref [2021-11-23 02:53:51,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_base_object_unref [2021-11-23 02:53:51,725 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_master [2021-11-23 02:53:51,725 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_master [2021-11-23 02:53:51,725 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_user_fence_create [2021-11-23 02:53:51,725 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_user_fence_create [2021-11-23 02:53:51,725 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_to_vram [2021-11-23 02:53:51,725 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_to_vram [2021-11-23 02:53:51,725 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_remove [2021-11-23 02:53:51,726 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_remove [2021-11-23 02:53:51,726 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_surface_destroy_size [2021-11-23 02:53:51,726 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_surface_destroy_size [2021-11-23 02:53:51,726 INFO L130 BoogieDeclarations]: Found specification of procedure drm_framebuffer_cleanup [2021-11-23 02:53:51,726 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_framebuffer_cleanup [2021-11-23 02:53:51,726 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_framebuffer_dmabuf_pin [2021-11-23 02:53:51,726 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_framebuffer_dmabuf_pin [2021-11-23 02:53:51,726 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-11-23 02:53:51,727 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-11-23 02:53:51,727 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2021-11-23 02:53:51,727 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2021-11-23 02:53:51,727 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_user_surface_base_release [2021-11-23 02:53:51,727 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_user_surface_base_release [2021-11-23 02:53:51,727 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_mem_glob [2021-11-23 02:53:51,727 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_mem_glob [2021-11-23 02:53:51,728 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_execbuf_fence_commands [2021-11-23 02:53:51,728 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_execbuf_fence_commands [2021-11-23 02:53:51,728 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_ping_host [2021-11-23 02:53:51,728 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_ping_host [2021-11-23 02:53:51,728 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_object_device_release [2021-11-23 02:53:51,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_object_device_release [2021-11-23 02:53:51,728 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_release [2021-11-23 02:53:51,729 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_release [2021-11-23 02:53:51,729 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2021-11-23 02:53:51,729 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2021-11-23 02:53:51,729 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_send_fence [2021-11-23 02:53:51,729 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_send_fence [2021-11-23 02:53:51,729 INFO L130 BoogieDeclarations]: Found specification of procedure fill_escape [2021-11-23 02:53:51,729 INFO L138 BoogieDeclarations]: Found implementation of procedure fill_escape [2021-11-23 02:53:51,730 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_manager_takedown [2021-11-23 02:53:51,730 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_manager_takedown [2021-11-23 02:53:51,730 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 02:53:51,730 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 02:53:51,730 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_execbuf_release_pinned_bo [2021-11-23 02:53:51,730 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_execbuf_release_pinned_bo [2021-11-23 02:53:51,730 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-23 02:53:51,731 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-23 02:53:51,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:53:51,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 02:53:51,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 02:53:51,731 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timespec [2021-11-23 02:53:51,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timespec [2021-11-23 02:53:53,392 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:53:53,409 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:54:57,134 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:54:58,586 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:54:58,586 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 02:54:58,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:54:58 BoogieIcfgContainer [2021-11-23 02:54:58,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:54:58,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:54:58,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:54:58,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:54:58,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:53:34" (1/3) ... [2021-11-23 02:54:58,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1960dbc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:54:58, skipping insertion in model container [2021-11-23 02:54:58,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:49" (2/3) ... [2021-11-23 02:54:58,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1960dbc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:54:58, skipping insertion in model container [2021-11-23 02:54:58,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:54:58" (3/3) ... [2021-11-23 02:54:58,606 INFO L111 eAbstractionObserver]: Analyzing ICFG main17_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i [2021-11-23 02:54:58,611 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:54:58,611 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:54:58,685 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:54:58,695 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:54:58,695 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:54:58,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 2711 states, 1519 states have (on average 1.2633311389071757) internal successors, (1919), 1638 states have internal predecessors, (1919), 960 states have call successors, (960), 230 states have call predecessors, (960), 230 states have return successors, (960), 931 states have call predecessors, (960), 960 states have call successors, (960) [2021-11-23 02:54:58,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 02:54:58,791 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:54:58,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:54:58,792 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:54:58,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:54:58,798 INFO L85 PathProgramCache]: Analyzing trace with hash 87355337, now seen corresponding path program 1 times [2021-11-23 02:54:58,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:54:58,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223531935] [2021-11-23 02:54:58,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:54:58,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:54:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:54:59,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:54:59,896 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:54:59,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223531935] [2021-11-23 02:54:59,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223531935] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:54:59,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:54:59,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:54:59,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577324748] [2021-11-23 02:54:59,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:54:59,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:54:59,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:54:59,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:54:59,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:54:59,946 INFO L87 Difference]: Start difference. First operand has 2711 states, 1519 states have (on average 1.2633311389071757) internal successors, (1919), 1638 states have internal predecessors, (1919), 960 states have call successors, (960), 230 states have call predecessors, (960), 230 states have return successors, (960), 931 states have call predecessors, (960), 960 states have call successors, (960) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:55:02,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:55:07,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:55:09,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:55:12,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:55:13,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:55:13,699 INFO L93 Difference]: Finished difference Result 8004 states and 12008 transitions. [2021-11-23 02:55:13,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:55:13,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-11-23 02:55:13,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:55:13,792 INFO L225 Difference]: With dead ends: 8004 [2021-11-23 02:55:13,792 INFO L226 Difference]: Without dead ends: 5242 [2021-11-23 02:55:13,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:55:13,847 INFO L933 BasicCegarLoop]: 4810 mSDtfsCounter, 3839 mSDsluCounter, 3833 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 5 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3841 SdHoareTripleChecker+Valid, 8383 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:55:13,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3841 Valid, 8383 Invalid, 573 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 564 Invalid, 4 Unknown, 0 Unchecked, 13.1s Time] [2021-11-23 02:55:13,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5242 states. [2021-11-23 02:55:14,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5242 to 5223. [2021-11-23 02:55:14,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 2917 states have (on average 1.246828933836133) internal successors, (3637), 3122 states have internal predecessors, (3637), 1855 states have call successors, (1855), 454 states have call predecessors, (1855), 450 states have return successors, (2073), 1766 states have call predecessors, (2073), 1825 states have call successors, (2073) [2021-11-23 02:55:14,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 7565 transitions. [2021-11-23 02:55:14,518 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 7565 transitions. Word has length 10 [2021-11-23 02:55:14,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:55:14,518 INFO L470 AbstractCegarLoop]: Abstraction has 5223 states and 7565 transitions. [2021-11-23 02:55:14,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:55:14,520 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 7565 transitions. [2021-11-23 02:55:14,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 02:55:14,522 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:55:14,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:55:14,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:55:14,523 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:55:14,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:55:14,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1588777528, now seen corresponding path program 1 times [2021-11-23 02:55:14,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:55:14,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719162811] [2021-11-23 02:55:14,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:55:14,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:55:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:55:15,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:55:15,235 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:55:15,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719162811] [2021-11-23 02:55:15,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719162811] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:55:15,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:55:15,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:55:15,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285091612] [2021-11-23 02:55:15,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:55:15,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:55:15,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:55:15,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:55:15,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:55:15,239 INFO L87 Difference]: Start difference. First operand 5223 states and 7565 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:55:17,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:55:21,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:55:24,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:55:24,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:55:24,488 INFO L93 Difference]: Finished difference Result 5340 states and 7709 transitions. [2021-11-23 02:55:24,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:55:24,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-11-23 02:55:24,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:55:24,559 INFO L225 Difference]: With dead ends: 5340 [2021-11-23 02:55:24,559 INFO L226 Difference]: Without dead ends: 5337 [2021-11-23 02:55:24,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:55:24,573 INFO L933 BasicCegarLoop]: 3515 mSDtfsCounter, 3737 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3741 SdHoareTripleChecker+Valid, 3634 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:55:24,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3741 Valid, 3634 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 3 Unknown, 0 Unchecked, 8.9s Time] [2021-11-23 02:55:24,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5337 states. [2021-11-23 02:55:24,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5337 to 5330. [2021-11-23 02:55:24,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5330 states, 2978 states have (on average 1.2458025520483547) internal successors, (3710), 3187 states have internal predecessors, (3710), 1883 states have call successors, (1883), 471 states have call predecessors, (1883), 468 states have return successors, (2104), 1795 states have call predecessors, (2104), 1854 states have call successors, (2104) [2021-11-23 02:55:25,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 7697 transitions. [2021-11-23 02:55:25,258 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 7697 transitions. Word has length 11 [2021-11-23 02:55:25,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:55:25,259 INFO L470 AbstractCegarLoop]: Abstraction has 5330 states and 7697 transitions. [2021-11-23 02:55:25,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:55:25,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 7697 transitions. [2021-11-23 02:55:25,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 02:55:25,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:55:25,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:55:25,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:55:25,262 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:55:25,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:55:25,264 INFO L85 PathProgramCache]: Analyzing trace with hash -2009283924, now seen corresponding path program 1 times [2021-11-23 02:55:25,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:55:25,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681747874] [2021-11-23 02:55:25,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:55:25,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:55:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:55:25,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:55:25,855 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:55:25,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681747874] [2021-11-23 02:55:25,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681747874] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:55:25,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:55:25,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:55:25,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963910921] [2021-11-23 02:55:25,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:55:25,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:55:25,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:55:25,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:55:25,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:55:25,859 INFO L87 Difference]: Start difference. First operand 5330 states and 7697 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:55:28,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:55:30,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:55:33,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:55:37,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:55:38,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:55:38,962 INFO L93 Difference]: Finished difference Result 10491 states and 16174 transitions. [2021-11-23 02:55:38,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:55:38,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-11-23 02:55:38,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:55:39,107 INFO L225 Difference]: With dead ends: 10491 [2021-11-23 02:55:39,107 INFO L226 Difference]: Without dead ends: 10487 [2021-11-23 02:55:39,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:55:39,120 INFO L933 BasicCegarLoop]: 4645 mSDtfsCounter, 3854 mSDsluCounter, 3841 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3856 SdHoareTripleChecker+Valid, 8227 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:55:39,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3856 Valid, 8227 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 535 Invalid, 3 Unknown, 0 Unchecked, 12.6s Time] [2021-11-23 02:55:39,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10487 states. [2021-11-23 02:55:40,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10487 to 10462. [2021-11-23 02:55:40,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10462 states, 5857 states have (on average 1.2455181833703262) internal successors, (7295), 6246 states have internal predecessors, (7295), 3693 states have call successors, (3693), 918 states have call predecessors, (3693), 911 states have return successors, (5156), 3541 states have call predecessors, (5156), 3662 states have call successors, (5156) [2021-11-23 02:55:40,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10462 states to 10462 states and 16144 transitions. [2021-11-23 02:55:40,201 INFO L78 Accepts]: Start accepts. Automaton has 10462 states and 16144 transitions. Word has length 12 [2021-11-23 02:55:40,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:55:40,202 INFO L470 AbstractCegarLoop]: Abstraction has 10462 states and 16144 transitions. [2021-11-23 02:55:40,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:55:40,202 INFO L276 IsEmpty]: Start isEmpty. Operand 10462 states and 16144 transitions. [2021-11-23 02:55:40,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 02:55:40,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:55:40,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:55:40,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:55:40,205 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:55:40,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:55:40,205 INFO L85 PathProgramCache]: Analyzing trace with hash 2134891851, now seen corresponding path program 1 times [2021-11-23 02:55:40,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:55:40,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296071752] [2021-11-23 02:55:40,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:55:40,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:55:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:55:40,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:55:40,860 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:55:40,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296071752] [2021-11-23 02:55:40,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296071752] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:55:40,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:55:40,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:55:40,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005221335] [2021-11-23 02:55:40,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:55:40,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:55:40,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:55:40,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:55:40,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:55:40,862 INFO L87 Difference]: Start difference. First operand 10462 states and 16144 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:55:43,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:55:46,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:55:50,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:55:52,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:55:53,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:55:53,975 INFO L93 Difference]: Finished difference Result 30436 states and 55042 transitions. [2021-11-23 02:55:53,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:55:53,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-11-23 02:55:53,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:55:54,481 INFO L225 Difference]: With dead ends: 30436 [2021-11-23 02:55:54,482 INFO L226 Difference]: Without dead ends: 19978 [2021-11-23 02:55:54,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:55:54,644 INFO L933 BasicCegarLoop]: 4600 mSDtfsCounter, 3614 mSDsluCounter, 3810 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3614 SdHoareTripleChecker+Valid, 8151 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:55:54,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3614 Valid, 8151 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 542 Invalid, 3 Unknown, 0 Unchecked, 12.3s Time] [2021-11-23 02:55:54,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19978 states. [2021-11-23 02:55:56,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19978 to 19939. [2021-11-23 02:55:56,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19939 states, 11154 states have (on average 1.243769051461359) internal successors, (13873), 11908 states have internal predecessors, (13873), 6996 states have call successors, (6996), 1806 states have call predecessors, (6996), 1788 states have return successors, (13958), 6688 states have call predecessors, (13958), 6924 states have call successors, (13958) [2021-11-23 02:55:57,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19939 states to 19939 states and 34827 transitions. [2021-11-23 02:55:57,248 INFO L78 Accepts]: Start accepts. Automaton has 19939 states and 34827 transitions. Word has length 13 [2021-11-23 02:55:57,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:55:57,249 INFO L470 AbstractCegarLoop]: Abstraction has 19939 states and 34827 transitions. [2021-11-23 02:55:57,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:55:57,249 INFO L276 IsEmpty]: Start isEmpty. Operand 19939 states and 34827 transitions. [2021-11-23 02:55:57,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 02:55:57,250 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:55:57,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:55:57,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:55:57,251 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:55:57,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:55:57,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1755326863, now seen corresponding path program 1 times [2021-11-23 02:55:57,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:55:57,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712240846] [2021-11-23 02:55:57,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:55:57,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:55:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:55:58,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:55:58,162 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:55:58,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712240846] [2021-11-23 02:55:58,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712240846] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:55:58,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:55:58,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:55:58,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239558580] [2021-11-23 02:55:58,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:55:58,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:55:58,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:55:58,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:55:58,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:55:58,164 INFO L87 Difference]: Start difference. First operand 19939 states and 34827 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:56:00,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:56:03,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:56:08,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:56:10,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:56:10,716 INFO L93 Difference]: Finished difference Result 39451 states and 84715 transitions. [2021-11-23 02:56:10,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:56:10,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-11-23 02:56:10,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:56:11,347 INFO L225 Difference]: With dead ends: 39451 [2021-11-23 02:56:11,348 INFO L226 Difference]: Without dead ends: 39447 [2021-11-23 02:56:11,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:56:11,379 INFO L933 BasicCegarLoop]: 4660 mSDtfsCounter, 3821 mSDsluCounter, 3847 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3823 SdHoareTripleChecker+Valid, 8248 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:56:11,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3823 Valid, 8248 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 545 Invalid, 3 Unknown, 0 Unchecked, 10.9s Time] [2021-11-23 02:56:11,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39447 states. [2021-11-23 02:56:16,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39447 to 39416. [2021-11-23 02:56:16,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39416 states, 22071 states have (on average 1.2436681618413303) internal successors, (27449), 23537 states have internal predecessors, (27449), 13812 states have call successors, (13812), 3582 states have call predecessors, (13812), 3532 states have return successors, (43412), 13212 states have call predecessors, (43412), 13696 states have call successors, (43412) [2021-11-23 02:56:17,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39416 states to 39416 states and 84673 transitions. [2021-11-23 02:56:17,933 INFO L78 Accepts]: Start accepts. Automaton has 39416 states and 84673 transitions. Word has length 14 [2021-11-23 02:56:17,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:56:17,934 INFO L470 AbstractCegarLoop]: Abstraction has 39416 states and 84673 transitions. [2021-11-23 02:56:17,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:56:17,935 INFO L276 IsEmpty]: Start isEmpty. Operand 39416 states and 84673 transitions. [2021-11-23 02:56:17,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 02:56:17,939 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:56:17,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:56:17,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:56:17,940 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:56:17,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:56:17,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1421248306, now seen corresponding path program 1 times [2021-11-23 02:56:17,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:56:17,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450090224] [2021-11-23 02:56:17,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:56:17,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:56:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:56:18,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:56:18,464 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:56:18,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450090224] [2021-11-23 02:56:18,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450090224] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:56:18,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:56:18,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:56:18,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880306177] [2021-11-23 02:56:18,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:56:18,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:56:18,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:56:18,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:56:18,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:56:18,467 INFO L87 Difference]: Start difference. First operand 39416 states and 84673 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:56:20,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:56:22,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:56:26,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:56:28,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:56:30,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:56:36,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:56:36,327 INFO L93 Difference]: Finished difference Result 74271 states and 220698 transitions. [2021-11-23 02:56:36,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:56:36,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-11-23 02:56:36,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:56:38,102 INFO L225 Difference]: With dead ends: 74271 [2021-11-23 02:56:38,102 INFO L226 Difference]: Without dead ends: 74267 [2021-11-23 02:56:38,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:56:38,164 INFO L933 BasicCegarLoop]: 4507 mSDtfsCounter, 3662 mSDsluCounter, 3551 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3662 SdHoareTripleChecker+Valid, 7812 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:56:38,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3662 Valid, 7812 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 527 Invalid, 3 Unknown, 0 Unchecked, 13.4s Time] [2021-11-23 02:56:38,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74267 states. [2021-11-23 02:56:54,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74267 to 74239. [2021-11-23 02:56:54,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74239 states, 41842 states have (on average 1.2476220065962431) internal successors, (52203), 44788 states have internal predecessors, (52203), 25500 states have call successors, (25500), 7098 states have call predecessors, (25500), 6896 states have return successors, (142948), 24052 states have call predecessors, (142948), 25304 states have call successors, (142948) [2021-11-23 02:56:58,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74239 states to 74239 states and 220651 transitions. [2021-11-23 02:56:58,542 INFO L78 Accepts]: Start accepts. Automaton has 74239 states and 220651 transitions. Word has length 15 [2021-11-23 02:56:58,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:56:58,543 INFO L470 AbstractCegarLoop]: Abstraction has 74239 states and 220651 transitions. [2021-11-23 02:56:58,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:56:58,544 INFO L276 IsEmpty]: Start isEmpty. Operand 74239 states and 220651 transitions. [2021-11-23 02:56:58,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 02:56:58,545 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:56:58,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:56:58,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:56:58,546 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:56:58,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:56:58,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1110825870, now seen corresponding path program 1 times [2021-11-23 02:56:58,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:56:58,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102322244] [2021-11-23 02:56:58,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:56:58,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:56:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:56:58,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:56:58,998 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:56:58,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102322244] [2021-11-23 02:56:58,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102322244] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:56:58,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:56:58,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:56:58,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049632268] [2021-11-23 02:56:58,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:56:59,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:56:59,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:56:59,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:56:59,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:56:59,001 INFO L87 Difference]: Start difference. First operand 74239 states and 220651 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:57:01,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:57:05,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:57:07,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []