./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.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_8fcf73f4-d75b-4960-9782-38f382443ff3/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcf73f4-d75b-4960-9782-38f382443ff3/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_8fcf73f4-d75b-4960-9782-38f382443ff3/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcf73f4-d75b-4960-9782-38f382443ff3/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcf73f4-d75b-4960-9782-38f382443ff3/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_8fcf73f4-d75b-4960-9782-38f382443ff3/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 159d68084b5403f80e4b7540fecb70dab3afa3eb4f2cbbe3cc657fb12a0df7e0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:39:46,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:39:46,955 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:39:46,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:39:46,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:39:47,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:39:47,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:39:47,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:39:47,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:39:47,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:39:47,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:39:47,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:39:47,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:39:47,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:39:47,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:39:47,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:39:47,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:39:47,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:39:47,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:39:47,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:39:47,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:39:47,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:39:47,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:39:47,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:39:47,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:39:47,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:39:47,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:39:47,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:39:47,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:39:47,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:39:47,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:39:47,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:39:47,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:39:47,071 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:39:47,073 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:39:47,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:39:47,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:39:47,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:39:47,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:39:47,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:39:47,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:39:47,078 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcf73f4-d75b-4960-9782-38f382443ff3/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 03:39:47,127 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:39:47,128 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:39:47,129 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:39:47,129 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:39:47,136 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:39:47,137 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:39:47,137 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:39:47,137 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:39:47,137 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:39:47,138 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:39:47,139 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:39:47,139 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:39:47,139 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:39:47,139 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:39:47,140 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:39:47,140 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:39:47,140 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:39:47,140 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:39:47,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:39:47,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:39:47,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:39:47,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:39:47,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:39:47,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:39:47,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:39:47,143 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:39:47,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:39:47,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:39:47,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:39:47,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:39:47,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:39:47,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:39:47,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:39:47,146 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:39:47,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:39:47,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:39:47,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:39:47,147 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:39:47,147 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_8fcf73f4-d75b-4960-9782-38f382443ff3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcf73f4-d75b-4960-9782-38f382443ff3/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 159d68084b5403f80e4b7540fecb70dab3afa3eb4f2cbbe3cc657fb12a0df7e0 [2021-11-23 03:39:47,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:39:47,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:39:47,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:39:47,490 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:39:47,491 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:39:47,492 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcf73f4-d75b-4960-9782-38f382443ff3/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2021-11-23 03:39:47,568 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcf73f4-d75b-4960-9782-38f382443ff3/bin/utaipan-EQgc7hIp5V/data/d02f18bbd/9f9c5a0688b34303a00f28fda0b9fd2b/FLAGdadbb38c3 [2021-11-23 03:39:48,676 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:39:48,678 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcf73f4-d75b-4960-9782-38f382443ff3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2021-11-23 03:39:48,752 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcf73f4-d75b-4960-9782-38f382443ff3/bin/utaipan-EQgc7hIp5V/data/d02f18bbd/9f9c5a0688b34303a00f28fda0b9fd2b/FLAGdadbb38c3 [2021-11-23 03:39:48,904 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcf73f4-d75b-4960-9782-38f382443ff3/bin/utaipan-EQgc7hIp5V/data/d02f18bbd/9f9c5a0688b34303a00f28fda0b9fd2b [2021-11-23 03:39:48,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:39:48,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:39:48,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:39:48,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:39:48,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:39:48,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:39:48" (1/1) ... [2021-11-23 03:39:48,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eecfc2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:48, skipping insertion in model container [2021-11-23 03:39:48,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:39:48" (1/1) ... [2021-11-23 03:39:48,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:39:49,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:39:55,551 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_8fcf73f4-d75b-4960-9782-38f382443ff3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i[548244,548257] [2021-11-23 03:39:55,980 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:39:56,109 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:39:56,656 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_8fcf73f4-d75b-4960-9782-38f382443ff3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i[548244,548257] [2021-11-23 03:39:56,675 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:39:57,205 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:39:57,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:57 WrapperNode [2021-11-23 03:39:57,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:39:57,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:39:57,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:39:57,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:39:57,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:57" (1/1) ... [2021-11-23 03:39:57,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:57" (1/1) ... [2021-11-23 03:39:58,075 INFO L137 Inliner]: procedures = 861, calls = 10351, calls flagged for inlining = 291, calls inlined = 261, statements flattened = 16765 [2021-11-23 03:39:58,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:39:58,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:39:58,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:39:58,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:39:58,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:57" (1/1) ... [2021-11-23 03:39:58,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:57" (1/1) ... [2021-11-23 03:39:58,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:57" (1/1) ... [2021-11-23 03:39:58,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:57" (1/1) ... [2021-11-23 03:39:58,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:57" (1/1) ... [2021-11-23 03:39:58,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:57" (1/1) ... [2021-11-23 03:39:58,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:57" (1/1) ... [2021-11-23 03:39:59,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:39:59,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:39:59,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:39:59,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:39:59,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:57" (1/1) ... [2021-11-23 03:39:59,070 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:39:59,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcf73f4-d75b-4960-9782-38f382443ff3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:39:59,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcf73f4-d75b-4960-9782-38f382443ff3/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:39:59,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcf73f4-d75b-4960-9782-38f382443ff3/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:39:59,276 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-23 03:39:59,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_5 [2021-11-23 03:39:59,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_5 [2021-11-23 03:39:59,277 INFO L130 BoogieDeclarations]: Found specification of procedure integrated_lvds_disable [2021-11-23 03:39:59,277 INFO L138 BoogieDeclarations]: Found implementation of procedure integrated_lvds_disable [2021-11-23 03:39:59,277 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lvds_identify_vt1636 [2021-11-23 03:39:59,277 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lvds_identify_vt1636 [2021-11-23 03:39:59,278 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_remove [2021-11-23 03:39:59,278 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_remove [2021-11-23 03:39:59,278 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-11-23 03:39:59,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-11-23 03:39:59,278 INFO L130 BoogieDeclarations]: Found specification of procedure via_read_reg [2021-11-23 03:39:59,278 INFO L138 BoogieDeclarations]: Found implementation of procedure via_read_reg [2021-11-23 03:39:59,278 INFO L130 BoogieDeclarations]: Found specification of procedure write_dac_reg [2021-11-23 03:39:59,278 INFO L138 BoogieDeclarations]: Found implementation of procedure write_dac_reg [2021-11-23 03:39:59,279 INFO L130 BoogieDeclarations]: Found specification of procedure vx855_encode_pll [2021-11-23 03:39:59,279 INFO L138 BoogieDeclarations]: Found implementation of procedure vx855_encode_pll [2021-11-23 03:39:59,279 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_resume [2021-11-23 03:39:59,279 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_resume [2021-11-23 03:39:59,279 INFO L130 BoogieDeclarations]: Found specification of procedure via_pci_teardown_mmio [2021-11-23 03:39:59,279 INFO L138 BoogieDeclarations]: Found implementation of procedure via_pci_teardown_mmio [2021-11-23 03:39:59,279 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 03:39:59,279 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_misc_reg_mask [2021-11-23 03:39:59,280 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_misc_reg_mask [2021-11-23 03:39:59,280 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_alloc [2021-11-23 03:39:59,280 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_alloc [2021-11-23 03:39:59,280 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_check_var [2021-11-23 03:39:59,280 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_check_var [2021-11-23 03:39:59,280 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvp1_proc_write [2021-11-23 03:39:59,280 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvp1_proc_write [2021-11-23 03:39:59,280 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-23 03:39:59,281 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-23 03:39:59,281 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_readbyte [2021-11-23 03:39:59,281 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_readbyte [2021-11-23 03:39:59,281 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_secondary_timing [2021-11-23 03:39:59,281 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_secondary_timing [2021-11-23 03:39:59,281 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-23 03:39:59,281 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-23 03:39:59,281 INFO L130 BoogieDeclarations]: Found specification of procedure set_dpa_vt1636 [2021-11-23 03:39:59,282 INFO L138 BoogieDeclarations]: Found implementation of procedure set_dpa_vt1636 [2021-11-23 03:39:59,282 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_FIFO_reg [2021-11-23 03:39:59,282 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_FIFO_reg [2021-11-23 03:39:59,282 INFO L130 BoogieDeclarations]: Found specification of procedure __platform_driver_register [2021-11-23 03:39:59,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __platform_driver_register [2021-11-23 03:39:59,283 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-23 03:39:59,284 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-23 03:39:59,284 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2021-11-23 03:39:59,284 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2021-11-23 03:39:59,284 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_disable_lvds_vt1636 [2021-11-23 03:39:59,285 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_disable_lvds_vt1636 [2021-11-23 03:39:59,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:39:59,286 INFO L130 BoogieDeclarations]: Found specification of procedure get_clk_range_index [2021-11-23 03:39:59,287 INFO L138 BoogieDeclarations]: Found implementation of procedure get_clk_range_index [2021-11-23 03:39:59,287 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_enable [2021-11-23 03:39:59,287 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_enable [2021-11-23 03:39:59,287 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_copyarea [2021-11-23 03:39:59,287 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_copyarea [2021-11-23 03:39:59,287 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 03:39:59,288 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 03:39:59,288 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-23 03:39:59,289 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-23 03:39:59,289 INFO L130 BoogieDeclarations]: Found specification of procedure get_var_refresh [2021-11-23 03:39:59,289 INFO L138 BoogieDeclarations]: Found implementation of procedure get_var_refresh [2021-11-23 03:39:59,305 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_unlock_crt [2021-11-23 03:39:59,305 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_unlock_crt [2021-11-23 03:39:59,305 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_fetch_count_reg [2021-11-23 03:39:59,305 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_fetch_count_reg [2021-11-23 03:39:59,305 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou8_from_user [2021-11-23 03:39:59,306 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou8_from_user [2021-11-23 03:39:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-23 03:39:59,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-23 03:39:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:39:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_reset_engine [2021-11-23 03:39:59,307 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_reset_engine [2021-11-23 03:39:59,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:39:59,308 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 03:39:59,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 03:39:59,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:39:59,308 INFO L130 BoogieDeclarations]: Found specification of procedure get_dvi_devices [2021-11-23 03:39:59,308 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dvi_devices [2021-11-23 03:39:59,309 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_primary_timing [2021-11-23 03:39:59,309 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_primary_timing [2021-11-23 03:39:59,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_viafb_pm_hooks_lock [2021-11-23 03:39:59,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_viafb_pm_hooks_lock [2021-11-23 03:39:59,310 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_reg [2021-11-23 03:39:59,310 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_reg [2021-11-23 03:39:59,310 INFO L130 BoogieDeclarations]: Found specification of procedure register_framebuffer [2021-11-23 03:39:59,311 INFO L138 BoogieDeclarations]: Found implementation of procedure register_framebuffer [2021-11-23 03:39:59,311 INFO L130 BoogieDeclarations]: Found specification of procedure set_engine_pll_encoded [2021-11-23 03:39:59,312 INFO L138 BoogieDeclarations]: Found implementation of procedure set_engine_pll_encoded [2021-11-23 03:39:59,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:39:59,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:39:59,312 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_sync_polarity [2021-11-23 03:39:59,313 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_sync_polarity [2021-11-23 03:39:59,313 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-23 03:39:59,313 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-23 03:39:59,313 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_suspend [2021-11-23 03:39:59,314 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_suspend [2021-11-23 03:39:59,314 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_suspend [2021-11-23 03:39:59,314 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_suspend [2021-11-23 03:39:59,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 03:39:59,314 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_release [2021-11-23 03:39:59,314 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_release [2021-11-23 03:39:59,315 INFO L130 BoogieDeclarations]: Found specification of procedure parse_mode [2021-11-23 03:39:59,315 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_mode [2021-11-23 03:39:59,315 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_state [2021-11-23 03:39:59,315 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_state [2021-11-23 03:39:59,316 INFO L130 BoogieDeclarations]: Found specification of procedure get_lcd_devices [2021-11-23 03:39:59,316 INFO L138 BoogieDeclarations]: Found implementation of procedure get_lcd_devices [2021-11-23 03:39:59,316 INFO L130 BoogieDeclarations]: Found specification of procedure probe___0 [2021-11-23 03:39:59,317 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___0 [2021-11-23 03:39:59,317 INFO L130 BoogieDeclarations]: Found specification of procedure probe___1 [2021-11-23 03:39:59,320 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___1 [2021-11-23 03:39:59,320 INFO L130 BoogieDeclarations]: Found specification of procedure probe___3 [2021-11-23 03:39:59,320 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___3 [2021-11-23 03:39:59,320 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_source [2021-11-23 03:39:59,321 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_source [2021-11-23 03:39:59,322 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-23 03:39:59,323 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-23 03:39:59,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_8 [2021-11-23 03:39:59,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_8 [2021-11-23 03:39:59,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 03:39:59,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 03:39:59,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2021-11-23 03:39:59,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2021-11-23 03:39:59,331 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_reg_mask [2021-11-23 03:39:59,331 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_reg_mask [2021-11-23 03:39:59,331 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~structbegin~~u16~0~u8~0~u8~0~structend~~TO~VOID [2021-11-23 03:39:59,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~structbegin~~u16~0~u8~0~u8~0~structend~~TO~VOID [2021-11-23 03:39:59,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 03:39:59,331 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 03:39:59,332 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-23 03:39:59,332 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-23 03:39:59,332 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_resume [2021-11-23 03:39:59,332 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_resume [2021-11-23 03:39:59,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:39:59,332 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 03:39:59,333 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 03:39:59,333 INFO L130 BoogieDeclarations]: Found specification of procedure cle266_encode_pll [2021-11-23 03:39:59,333 INFO L138 BoogieDeclarations]: Found implementation of procedure cle266_encode_pll [2021-11-23 03:39:59,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:39:59,333 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u8~0~TO~int [2021-11-23 03:39:59,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u8~0~TO~int [2021-11-23 03:39:59,334 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-23 03:39:59,334 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-23 03:39:59,334 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-23 03:39:59,334 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-23 03:39:59,334 INFO L130 BoogieDeclarations]: Found specification of procedure get_best_mode [2021-11-23 03:39:59,334 INFO L138 BoogieDeclarations]: Found implementation of procedure get_best_mode [2021-11-23 03:39:59,335 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_probe [2021-11-23 03:39:59,335 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_probe [2021-11-23 03:39:59,335 INFO L130 BoogieDeclarations]: Found specification of procedure get_pll_config [2021-11-23 03:39:59,335 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pll_config [2021-11-23 03:39:59,335 INFO L130 BoogieDeclarations]: Found specification of procedure parse_port [2021-11-23 03:39:59,335 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_port [2021-11-23 03:39:59,335 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_update_fix [2021-11-23 03:39:59,336 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_update_fix [2021-11-23 03:39:59,336 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_fillrect [2021-11-23 03:39:59,336 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_fillrect [2021-11-23 03:39:59,336 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_setup_fixinfo [2021-11-23 03:39:59,336 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_setup_fixinfo [2021-11-23 03:39:59,336 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_sense [2021-11-23 03:39:59,337 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_sense [2021-11-23 03:39:59,337 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_iga_path [2021-11-23 03:39:59,337 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_iga_path [2021-11-23 03:39:59,337 INFO L130 BoogieDeclarations]: Found specification of procedure check_tmds_chip [2021-11-23 03:39:59,337 INFO L138 BoogieDeclarations]: Found implementation of procedure check_tmds_chip [2021-11-23 03:39:59,337 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pm_unregister [2021-11-23 03:39:59,337 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pm_unregister [2021-11-23 03:39:59,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:39:59,338 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2021-11-23 03:39:59,338 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2021-11-23 03:39:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 03:39:59,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 03:39:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dfph_proc_write [2021-11-23 03:39:59,353 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dfph_proc_write [2021-11-23 03:39:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_disable [2021-11-23 03:39:59,354 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_disable [2021-11-23 03:39:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure k800_encode_pll [2021-11-23 03:39:59,354 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_encode_pll [2021-11-23 03:39:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-23 03:39:59,354 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-23 03:39:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_enable [2021-11-23 03:39:59,354 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_enable [2021-11-23 03:39:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_set_mode [2021-11-23 03:39:59,355 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_set_mode [2021-11-23 03:39:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-23 03:39:59,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-23 03:39:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pan_display [2021-11-23 03:39:59,355 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pan_display [2021-11-23 03:39:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_5 [2021-11-23 03:39:59,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_5 [2021-11-23 03:39:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure via_fb_pci_remove [2021-11-23 03:39:59,356 INFO L138 BoogieDeclarations]: Found implementation of procedure via_fb_pci_remove [2021-11-23 03:39:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_bus_free [2021-11-23 03:39:59,356 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_bus_free [2021-11-23 03:39:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_primary_address [2021-11-23 03:39:59,357 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_primary_address [2021-11-23 03:39:59,357 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-23 03:39:59,357 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-23 03:39:59,357 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_init_lvds_output_interface [2021-11-23 03:39:59,357 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_init_lvds_output_interface [2021-11-23 03:39:59,357 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_bpp [2021-11-23 03:39:59,357 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_bpp [2021-11-23 03:39:59,358 INFO L130 BoogieDeclarations]: Found specification of procedure set_source_common [2021-11-23 03:39:59,358 INFO L138 BoogieDeclarations]: Found implementation of procedure set_source_common [2021-11-23 03:39:59,358 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_find_i2c_adapter [2021-11-23 03:39:59,358 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_find_i2c_adapter [2021-11-23 03:39:59,358 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_iga1_odev_proc_write [2021-11-23 03:39:59,358 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_iga1_odev_proc_write [2021-11-23 03:39:59,359 INFO L130 BoogieDeclarations]: Found specification of procedure integrated_lvds_enable [2021-11-23 03:39:59,359 INFO L138 BoogieDeclarations]: Found implementation of procedure integrated_lvds_enable [2021-11-23 03:39:59,359 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou8 [2021-11-23 03:39:59,359 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou8 [2021-11-23 03:39:59,359 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_par [2021-11-23 03:39:59,359 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_par [2021-11-23 03:39:59,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 03:39:59,360 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 03:39:59,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 03:39:59,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 03:39:59,360 INFO L130 BoogieDeclarations]: Found specification of procedure get_sync [2021-11-23 03:39:59,360 INFO L138 BoogieDeclarations]: Found implementation of procedure get_sync [2021-11-23 03:39:59,360 INFO L130 BoogieDeclarations]: Found specification of procedure get_pll_output_frequency [2021-11-23 03:39:59,361 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pll_output_frequency [2021-11-23 03:39:59,361 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_iga2_odev_proc_write [2021-11-23 03:39:59,361 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_iga2_odev_proc_write [2021-11-23 03:39:59,361 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~~bool~0~TO~VOID [2021-11-23 03:39:59,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~~bool~0~TO~VOID [2021-11-23 03:39:59,361 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_remove [2021-11-23 03:39:59,362 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_remove [2021-11-23 03:39:59,362 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 03:39:59,362 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 03:39:59,362 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_enable_lvds_vt1636 [2021-11-23 03:39:59,362 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_enable_lvds_vt1636 [2021-11-23 03:39:59,362 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lock_crt [2021-11-23 03:39:59,362 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lock_crt [2021-11-23 03:39:59,363 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-11-23 03:39:59,363 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-11-23 03:39:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 03:39:59,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 03:39:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:39:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure set_clock_source_common [2021-11-23 03:39:59,368 INFO L138 BoogieDeclarations]: Found implementation of procedure set_clock_source_common [2021-11-23 03:39:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure k800_set_primary_pll_encoded [2021-11-23 03:39:59,368 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_set_primary_pll_encoded [2021-11-23 03:39:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure set_color_register [2021-11-23 03:39:59,368 INFO L138 BoogieDeclarations]: Found implementation of procedure set_color_register [2021-11-23 03:39:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-11-23 03:39:59,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-11-23 03:39:59,370 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-23 03:39:59,370 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-23 03:39:59,371 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_get_best_mode [2021-11-23 03:39:59,371 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_get_best_mode [2021-11-23 03:39:59,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 03:39:59,371 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_i2c_write_mask_lvds [2021-11-23 03:39:59,371 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_i2c_write_mask_lvds [2021-11-23 03:39:59,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_viafb_pm_hooks_lock [2021-11-23 03:39:59,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_viafb_pm_hooks_lock [2021-11-23 03:39:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 03:39:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure tmds_register_write [2021-11-23 03:39:59,372 INFO L138 BoogieDeclarations]: Found implementation of procedure tmds_register_write [2021-11-23 03:39:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure tmds_register_read [2021-11-23 03:39:59,372 INFO L138 BoogieDeclarations]: Found implementation of procedure tmds_register_read [2021-11-23 03:39:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_mmio_read [2021-11-23 03:39:59,372 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_mmio_read [2021-11-23 03:39:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_imageblit [2021-11-23 03:39:59,373 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_imageblit [2021-11-23 03:39:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 03:39:59,373 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 03:39:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-23 03:39:59,373 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-23 03:39:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-11-23 03:39:59,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-11-23 03:39:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create [2021-11-23 03:39:59,374 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create [2021-11-23 03:39:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pm_register [2021-11-23 03:39:59,374 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pm_register [2021-11-23 03:39:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2021-11-23 03:39:59,375 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2021-11-23 03:39:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_color_depth [2021-11-23 03:39:59,375 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_color_depth [2021-11-23 03:39:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_disable [2021-11-23 03:39:59,375 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_disable [2021-11-23 03:39:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:39:59,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:39:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_vt1636_proc_write [2021-11-23 03:39:59,376 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_vt1636_proc_write [2021-11-23 03:39:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:39:59,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:39:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_writebyte [2021-11-23 03:39:59,376 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_writebyte [2021-11-23 03:39:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure via_gpio_set [2021-11-23 03:39:59,377 INFO L138 BoogieDeclarations]: Found implementation of procedure via_gpio_set [2021-11-23 03:39:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure var_to_timing [2021-11-23 03:39:59,377 INFO L138 BoogieDeclarations]: Found implementation of procedure var_to_timing [2021-11-23 03:39:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_secondary_address [2021-11-23 03:39:59,377 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_secondary_address [2021-11-23 03:39:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-23 03:39:59,378 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-23 03:39:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_read [2021-11-23 03:39:59,378 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_read [2021-11-23 03:39:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_enable [2021-11-23 03:39:59,378 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_enable [2021-11-23 03:39:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_probe [2021-11-23 03:39:59,378 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_probe [2021-11-23 03:39:59,379 INFO L130 BoogieDeclarations]: Found specification of procedure odev_update [2021-11-23 03:39:59,379 INFO L138 BoogieDeclarations]: Found implementation of procedure odev_update [2021-11-23 03:39:59,379 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_i2c_read_lvds [2021-11-23 03:39:59,379 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_i2c_read_lvds [2021-11-23 03:39:59,379 INFO L130 BoogieDeclarations]: Found specification of procedure via_pci_remove [2021-11-23 03:39:59,379 INFO L138 BoogieDeclarations]: Found implementation of procedure via_pci_remove [2021-11-23 03:39:59,379 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2021-11-23 03:39:59,380 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2021-11-23 03:39:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 03:39:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 03:39:59,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 03:39:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure set_lcd_output_path [2021-11-23 03:39:59,380 INFO L138 BoogieDeclarations]: Found implementation of procedure set_lcd_output_path [2021-11-23 03:39:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure via_teardown_subdevs [2021-11-23 03:39:59,381 INFO L138 BoogieDeclarations]: Found implementation of procedure via_teardown_subdevs [2021-11-23 03:39:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-23 03:39:59,381 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-23 03:39:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_fill_var_timing_info [2021-11-23 03:39:59,381 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_fill_var_timing_info [2021-11-23 03:39:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2021-11-23 03:39:59,381 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2021-11-23 03:39:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 03:39:59,382 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 03:39:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure via_resume [2021-11-23 03:39:59,382 INFO L138 BoogieDeclarations]: Found implementation of procedure via_resume [2021-11-23 03:39:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir [2021-11-23 03:39:59,382 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir [2021-11-23 03:39:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_write_regx [2021-11-23 03:39:59,383 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_write_regx [2021-11-23 03:39:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure fb_dealloc_cmap [2021-11-23 03:39:59,383 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_dealloc_cmap [2021-11-23 03:39:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_free [2021-11-23 03:39:59,383 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_free [2021-11-23 03:39:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 03:39:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_add [2021-11-23 03:39:59,384 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_add [2021-11-23 03:39:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_suspend [2021-11-23 03:39:59,384 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_suspend [2021-11-23 03:39:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_sync [2021-11-23 03:39:59,384 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_sync [2021-11-23 03:39:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_probe [2021-11-23 03:39:59,385 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_probe [2021-11-23 03:39:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_framebuffer [2021-11-23 03:39:59,385 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_framebuffer [2021-11-23 03:39:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvp0_proc_write [2021-11-23 03:39:59,385 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvp0_proc_write [2021-11-23 03:39:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~u8~0~TO~VOID [2021-11-23 03:39:59,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~u8~0~TO~VOID [2021-11-23 03:39:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modedb [2021-11-23 03:39:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modedb [2021-11-23 03:39:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_reg [2021-11-23 03:39:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_reg [2021-11-23 03:39:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2021-11-23 03:39:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2021-11-23 03:39:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_vclock [2021-11-23 03:39:59,387 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_vclock [2021-11-23 03:39:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 03:39:59,387 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 03:39:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_get_preferred_mode [2021-11-23 03:39:59,387 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_get_preferred_mode [2021-11-23 03:39:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-11-23 03:39:59,387 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-11-23 03:39:59,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-23 03:39:59,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-23 03:39:59,388 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-23 03:39:59,388 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-23 03:39:59,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_init_2 [2021-11-23 03:39:59,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_init_2 [2021-11-23 03:39:59,389 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_set_mode [2021-11-23 03:39:59,389 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_set_mode [2021-11-23 03:39:59,389 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_query_EDID [2021-11-23 03:39:59,389 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_query_EDID [2021-11-23 03:39:59,389 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2021-11-23 03:39:59,389 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2021-11-23 03:39:59,389 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2021-11-23 03:39:59,390 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2021-11-23 03:39:59,390 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_dpa_gfx [2021-11-23 03:39:59,390 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_dpa_gfx [2021-11-23 03:39:59,390 INFO L130 BoogieDeclarations]: Found specification of procedure k800_set_secondary_pll_encoded [2021-11-23 03:39:59,390 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_set_secondary_pll_encoded [2021-11-23 03:39:59,390 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dfpl_proc_write [2021-11-23 03:39:59,390 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dfpl_proc_write [2021-11-23 03:39:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_update_device_setting [2021-11-23 03:39:59,391 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_update_device_setting [2021-11-23 03:39:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-11-23 03:39:59,391 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-11-23 03:39:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_fill_crtc_timing [2021-11-23 03:39:59,391 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_fill_crtc_timing [2021-11-23 03:39:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-23 03:39:59,392 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-23 03:39:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure machine_is_olpc [2021-11-23 03:39:59,392 INFO L138 BoogieDeclarations]: Found implementation of procedure machine_is_olpc [2021-11-23 03:39:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-23 03:39:59,392 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-23 03:39:59,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:39:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_mmio_write [2021-11-23 03:39:59,393 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_mmio_write [2021-11-23 03:39:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_show_hw_cursor [2021-11-23 03:39:59,393 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_show_hw_cursor [2021-11-23 03:39:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2021-11-23 03:39:59,393 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2021-11-23 03:40:01,037 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:40:01,045 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:40:05,213 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 03:40:47,532 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:40:56,242 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:40:56,242 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 03:40:56,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:40:56 BoogieIcfgContainer [2021-11-23 03:40:56,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:40:56,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:40:56,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:40:56,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:40:56,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:39:48" (1/3) ... [2021-11-23 03:40:56,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a245598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:40:56, skipping insertion in model container [2021-11-23 03:40:56,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:57" (2/3) ... [2021-11-23 03:40:56,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a245598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:40:56, skipping insertion in model container [2021-11-23 03:40:56,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:40:56" (3/3) ... [2021-11-23 03:40:56,257 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2021-11-23 03:40:56,262 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:40:56,262 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:40:56,329 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:40:56,335 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 03:40:56,336 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:40:56,418 INFO L276 IsEmpty]: Start isEmpty. Operand has 3466 states, 2081 states have (on average 1.4041326285439693) internal successors, (2922), 2267 states have internal predecessors, (2922), 1190 states have call successors, (1190), 194 states have call predecessors, (1190), 193 states have return successors, (1171), 1110 states have call predecessors, (1171), 1171 states have call successors, (1171) [2021-11-23 03:40:56,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 03:40:56,426 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:40:56,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:40:56,427 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:40:56,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:40:56,432 INFO L85 PathProgramCache]: Analyzing trace with hash 143265761, now seen corresponding path program 1 times [2021-11-23 03:40:56,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:40:56,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113369099] [2021-11-23 03:40:56,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:40:56,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:40:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:40:57,657 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 03:40:57,657 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:40:57,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113369099] [2021-11-23 03:40:57,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113369099] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:40:57,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:40:57,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:40:57,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128527156] [2021-11-23 03:40:57,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:40:57,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:40:57,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:40:57,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:40:57,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:40:57,714 INFO L87 Difference]: Start difference. First operand has 3466 states, 2081 states have (on average 1.4041326285439693) internal successors, (2922), 2267 states have internal predecessors, (2922), 1190 states have call successors, (1190), 194 states have call predecessors, (1190), 193 states have return successors, (1171), 1110 states have call predecessors, (1171), 1171 states have call successors, (1171) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-23 03:41:03,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:06,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:08,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:10,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:13,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:41:17,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:19,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:22,222 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:24,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:26,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:41:28,845 WARN L534 Checker$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 03:41:30,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:41:30,367 INFO L93 Difference]: Finished difference Result 10188 states and 15608 transitions. [2021-11-23 03:41:30,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:41:30,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 39 [2021-11-23 03:41:30,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:41:30,453 INFO L225 Difference]: With dead ends: 10188 [2021-11-23 03:41:30,453 INFO L226 Difference]: Without dead ends: 6684 [2021-11-23 03:41:30,480 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 03:41:30,484 INFO L933 BasicCegarLoop]: 5852 mSDtfsCounter, 4958 mSDsluCounter, 5241 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 5 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4964 SdHoareTripleChecker+Valid, 10590 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:41:30,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4964 Valid, 10590 Invalid, 1045 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1033 Invalid, 7 Unknown, 0 Unchecked, 32.1s Time] [2021-11-23 03:41:30,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6684 states. [2021-11-23 03:41:31,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6684 to 6659. [2021-11-23 03:41:31,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6659 states, 4029 states have (on average 1.3976172747580045) internal successors, (5631), 4350 states have internal predecessors, (5631), 2254 states have call successors, (2254), 376 states have call predecessors, (2254), 375 states have return successors, (2246), 2121 states have call predecessors, (2246), 2245 states have call successors, (2246) [2021-11-23 03:41:31,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6659 states to 6659 states and 10131 transitions. [2021-11-23 03:41:31,264 INFO L78 Accepts]: Start accepts. Automaton has 6659 states and 10131 transitions. Word has length 39 [2021-11-23 03:41:31,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:41:31,264 INFO L470 AbstractCegarLoop]: Abstraction has 6659 states and 10131 transitions. [2021-11-23 03:41:31,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-23 03:41:31,266 INFO L276 IsEmpty]: Start isEmpty. Operand 6659 states and 10131 transitions. [2021-11-23 03:41:31,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 03:41:31,276 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:41:31,276 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:41:31,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:41:31,277 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:41:31,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:41:31,281 INFO L85 PathProgramCache]: Analyzing trace with hash 618969510, now seen corresponding path program 1 times [2021-11-23 03:41:31,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:41:31,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450540285] [2021-11-23 03:41:31,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:41:31,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:41:31,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:41:32,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:41:32,157 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:41:32,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450540285] [2021-11-23 03:41:32,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450540285] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:41:32,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:41:32,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:41:32,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877752055] [2021-11-23 03:41:32,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:41:32,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:41:32,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:41:32,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:41:32,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:41:32,161 INFO L87 Difference]: Start difference. First operand 6659 states and 10131 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 03:41:33,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:36,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:39,963 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:41,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:43,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:45,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:48,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:41:50,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:53,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:41:55,977 WARN L534 Checker$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 03:42:00,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:03,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:42:04,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:06,954 WARN L534 Checker$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 03:42:08,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:42:08,652 INFO L93 Difference]: Finished difference Result 19574 states and 29786 transitions. [2021-11-23 03:42:08,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:42:08,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2021-11-23 03:42:08,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:42:08,774 INFO L225 Difference]: With dead ends: 19574 [2021-11-23 03:42:08,774 INFO L226 Difference]: Without dead ends: 12920 [2021-11-23 03:42:08,826 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 03:42:08,829 INFO L933 BasicCegarLoop]: 5809 mSDtfsCounter, 4872 mSDsluCounter, 5130 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4875 SdHoareTripleChecker+Valid, 10439 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.9s IncrementalHoareTripleChecker+Time [2021-11-23 03:42:08,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4875 Valid, 10439 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1029 Invalid, 7 Unknown, 0 Unchecked, 35.9s Time] [2021-11-23 03:42:08,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12920 states. [2021-11-23 03:42:09,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12920 to 12913. [2021-11-23 03:42:09,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12913 states, 7812 states have (on average 1.3986175115207373) internal successors, (10926), 8441 states have internal predecessors, (10926), 4365 states have call successors, (4365), 736 states have call predecessors, (4365), 735 states have return successors, (4359), 4110 states have call predecessors, (4359), 4356 states have call successors, (4359) [2021-11-23 03:42:09,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12913 states to 12913 states and 19650 transitions. [2021-11-23 03:42:09,922 INFO L78 Accepts]: Start accepts. Automaton has 12913 states and 19650 transitions. Word has length 43 [2021-11-23 03:42:09,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:42:09,923 INFO L470 AbstractCegarLoop]: Abstraction has 12913 states and 19650 transitions. [2021-11-23 03:42:09,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 03:42:09,924 INFO L276 IsEmpty]: Start isEmpty. Operand 12913 states and 19650 transitions. [2021-11-23 03:42:09,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-23 03:42:09,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:42:09,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:42:09,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:42:09,930 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:42:09,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:42:09,930 INFO L85 PathProgramCache]: Analyzing trace with hash 244307334, now seen corresponding path program 1 times [2021-11-23 03:42:09,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:42:09,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394841004] [2021-11-23 03:42:09,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:42:09,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:42:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:42:10,819 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 03:42:10,819 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:42:10,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394841004] [2021-11-23 03:42:10,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394841004] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:42:10,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:42:10,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:42:10,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434098726] [2021-11-23 03:42:10,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:42:10,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:42:10,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:42:10,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:42:10,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:42:10,822 INFO L87 Difference]: Start difference. First operand 12913 states and 19650 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-23 03:42:12,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:16,670 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:21,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:23,819 WARN L534 Checker$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 03:42:26,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:28,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:42:29,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:32,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:35,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:37,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:40,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:42:41,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:42,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:45,416 WARN L534 Checker$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 03:42:46,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:42:46,830 INFO L93 Difference]: Finished difference Result 36122 states and 55118 transitions. [2021-11-23 03:42:46,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:42:46,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 50 [2021-11-23 03:42:46,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:42:46,989 INFO L225 Difference]: With dead ends: 36122 [2021-11-23 03:42:46,989 INFO L226 Difference]: Without dead ends: 23214 [2021-11-23 03:42:47,065 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 03:42:47,069 INFO L933 BasicCegarLoop]: 6733 mSDtfsCounter, 4112 mSDsluCounter, 5160 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4117 SdHoareTripleChecker+Valid, 11399 SdHoareTripleChecker+Invalid, 1255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:42:47,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4117 Valid, 11399 Invalid, 1255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1244 Invalid, 8 Unknown, 0 Unchecked, 35.3s Time] [2021-11-23 03:42:47,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23214 states. [2021-11-23 03:42:48,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23214 to 23189. [2021-11-23 03:42:48,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23189 states, 14023 states have (on average 1.4060472081580262) internal successors, (19717), 15206 states have internal predecessors, (19717), 7863 states have call successors, (7863), 1303 states have call predecessors, (7863), 1302 states have return successors, (7861), 7390 states have call predecessors, (7861), 7854 states have call successors, (7861) [2021-11-23 03:42:48,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23189 states to 23189 states and 35441 transitions. [2021-11-23 03:42:48,698 INFO L78 Accepts]: Start accepts. Automaton has 23189 states and 35441 transitions. Word has length 50 [2021-11-23 03:42:48,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:42:48,699 INFO L470 AbstractCegarLoop]: Abstraction has 23189 states and 35441 transitions. [2021-11-23 03:42:48,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-23 03:42:48,700 INFO L276 IsEmpty]: Start isEmpty. Operand 23189 states and 35441 transitions. [2021-11-23 03:42:48,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 03:42:48,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:42:48,704 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:42:48,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:42:48,704 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:42:48,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:42:48,705 INFO L85 PathProgramCache]: Analyzing trace with hash -778586389, now seen corresponding path program 1 times [2021-11-23 03:42:48,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:42:48,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363491941] [2021-11-23 03:42:48,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:42:48,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:42:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:42:49,526 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 03:42:49,526 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:42:49,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363491941] [2021-11-23 03:42:49,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363491941] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:42:49,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:42:49,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:42:49,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111761244] [2021-11-23 03:42:49,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:42:49,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:42:49,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:42:49,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:42:49,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:42:49,528 INFO L87 Difference]: Start difference. First operand 23189 states and 35441 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-23 03:42:50,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:56,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:42:58,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:00,264 WARN L534 Checker$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 03:43:03,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:05,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:43:09,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:12,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:15,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:17,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:22,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:43:23,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:25,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:27,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:28,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:43:28,466 INFO L93 Difference]: Finished difference Result 46038 states and 70381 transitions. [2021-11-23 03:43:28,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:43:28,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2021-11-23 03:43:28,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:43:28,741 INFO L225 Difference]: With dead ends: 46038 [2021-11-23 03:43:28,741 INFO L226 Difference]: Without dead ends: 46035 [2021-11-23 03:43:28,766 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 03:43:28,767 INFO L933 BasicCegarLoop]: 5865 mSDtfsCounter, 4905 mSDsluCounter, 5197 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4910 SdHoareTripleChecker+Valid, 10556 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:43:28,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4910 Valid, 10556 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1025 Invalid, 10 Unknown, 0 Unchecked, 37.8s Time] [2021-11-23 03:43:28,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46035 states. [2021-11-23 03:43:31,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46035 to 46024. [2021-11-23 03:43:31,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46024 states, 27835 states have (on average 1.406502604634453) internal successors, (39150), 30190 states have internal predecessors, (39150), 15606 states have call successors, (15606), 2583 states have call predecessors, (15606), 2582 states have return successors, (15612), 14669 states have call predecessors, (15612), 15597 states have call successors, (15612) [2021-11-23 03:43:32,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46024 states to 46024 states and 70368 transitions. [2021-11-23 03:43:32,346 INFO L78 Accepts]: Start accepts. Automaton has 46024 states and 70368 transitions. Word has length 57 [2021-11-23 03:43:32,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:43:32,347 INFO L470 AbstractCegarLoop]: Abstraction has 46024 states and 70368 transitions. [2021-11-23 03:43:32,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-23 03:43:32,348 INFO L276 IsEmpty]: Start isEmpty. Operand 46024 states and 70368 transitions. [2021-11-23 03:43:32,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-23 03:43:32,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:43:32,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:43:32,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:43:32,351 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:43:32,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:43:32,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1631688312, now seen corresponding path program 1 times [2021-11-23 03:43:32,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:43:32,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264784284] [2021-11-23 03:43:32,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:32,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:43:32,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:43:33,341 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 03:43:33,341 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:43:33,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264784284] [2021-11-23 03:43:33,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264784284] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:43:33,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:43:33,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:43:33,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484490389] [2021-11-23 03:43:33,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:43:33,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:43:33,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:43:33,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:43:33,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:43:33,343 INFO L87 Difference]: Start difference. First operand 46024 states and 70368 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-23 03:43:34,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:39,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:41,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:43,389 WARN L534 Checker$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 03:43:47,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:43:53,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:55,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:43:57,875 WARN L534 Checker$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 03:43:59,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:00,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:04,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:06,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:09,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:44:11,616 WARN L534 Checker$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 03:44:14,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:44:14,151 INFO L93 Difference]: Finished difference Result 68995 states and 105491 transitions. [2021-11-23 03:44:14,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:44:14,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2021-11-23 03:44:14,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:44:14,556 INFO L225 Difference]: With dead ends: 68995 [2021-11-23 03:44:14,556 INFO L226 Difference]: Without dead ends: 68992 [2021-11-23 03:44:14,600 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 03:44:14,601 INFO L933 BasicCegarLoop]: 5873 mSDtfsCounter, 4944 mSDsluCounter, 5202 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4950 SdHoareTripleChecker+Valid, 10567 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:44:14,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4950 Valid, 10567 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1028 Invalid, 9 Unknown, 0 Unchecked, 39.5s Time] [2021-11-23 03:44:14,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68992 states. [2021-11-23 03:44:17,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68992 to 68980. [2021-11-23 03:44:18,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68980 states, 41724 states have (on average 1.406696385773176) internal successors, (58693), 45251 states have internal predecessors, (58693), 23385 states have call successors, (23385), 3871 states have call predecessors, (23385), 3870 states have return successors, (23399), 21984 states have call predecessors, (23399), 23376 states have call successors, (23399) [2021-11-23 03:44:19,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68980 states to 68980 states and 105477 transitions. [2021-11-23 03:44:19,082 INFO L78 Accepts]: Start accepts. Automaton has 68980 states and 105477 transitions. Word has length 58 [2021-11-23 03:44:19,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:44:19,082 INFO L470 AbstractCegarLoop]: Abstraction has 68980 states and 105477 transitions. [2021-11-23 03:44:19,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-23 03:44:19,083 INFO L276 IsEmpty]: Start isEmpty. Operand 68980 states and 105477 transitions. [2021-11-23 03:44:19,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-23 03:44:19,087 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:44:19,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:44:19,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:44:19,088 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:44:19,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:44:19,089 INFO L85 PathProgramCache]: Analyzing trace with hash -959202418, now seen corresponding path program 1 times [2021-11-23 03:44:19,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:44:19,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987254318] [2021-11-23 03:44:19,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:44:19,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:44:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:44:19,759 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 03:44:19,759 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:44:19,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987254318] [2021-11-23 03:44:19,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987254318] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:44:19,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:44:19,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:44:19,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982806761] [2021-11-23 03:44:19,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:44:19,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:44:19,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:44:19,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:44:19,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:44:19,762 INFO L87 Difference]: Start difference. First operand 68980 states and 105477 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-23 03:44:21,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:27,256 WARN L534 Checker$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 03:44:29,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:31,314 WARN L534 Checker$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 03:44:34,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:36,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:44:43,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:45,588 WARN L534 Checker$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 03:44:47,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:48,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:52,890 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:44:54,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:44:57,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:44:57,925 INFO L93 Difference]: Finished difference Result 91828 states and 140414 transitions. [2021-11-23 03:44:57,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:44:57,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2021-11-23 03:44:57,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:44:58,731 INFO L225 Difference]: With dead ends: 91828 [2021-11-23 03:44:58,731 INFO L226 Difference]: Without dead ends: 91825 [2021-11-23 03:44:58,781 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 03:44:58,782 INFO L933 BasicCegarLoop]: 5871 mSDtfsCounter, 4893 mSDsluCounter, 5203 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4898 SdHoareTripleChecker+Valid, 10568 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:44:58,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4898 Valid, 10568 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1032 Invalid, 8 Unknown, 0 Unchecked, 36.2s Time] [2021-11-23 03:44:58,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91825 states. [2021-11-23 03:45:03,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91825 to 91814. [2021-11-23 03:45:03,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91814 states, 55536 states have (on average 1.4067451743013542) internal successors, (78125), 60235 states have internal predecessors, (78125), 31127 states have call successors, (31127), 5151 states have call predecessors, (31127), 5150 states have return successors, (31149), 29262 states have call predecessors, (31149), 31118 states have call successors, (31149) [2021-11-23 03:45:04,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91814 states to 91814 states and 140401 transitions. [2021-11-23 03:45:04,114 INFO L78 Accepts]: Start accepts. Automaton has 91814 states and 140401 transitions. Word has length 59 [2021-11-23 03:45:04,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:45:04,115 INFO L470 AbstractCegarLoop]: Abstraction has 91814 states and 140401 transitions. [2021-11-23 03:45:04,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-23 03:45:04,115 INFO L276 IsEmpty]: Start isEmpty. Operand 91814 states and 140401 transitions. [2021-11-23 03:45:04,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-23 03:45:04,117 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:45:04,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:45:04,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 03:45:04,118 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:45:04,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:45:04,119 INFO L85 PathProgramCache]: Analyzing trace with hash 327568443, now seen corresponding path program 1 times [2021-11-23 03:45:04,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:45:04,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879219281] [2021-11-23 03:45:04,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:45:04,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:45:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:45:04,989 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 03:45:04,989 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:45:04,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879219281] [2021-11-23 03:45:04,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879219281] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:45:04,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:45:04,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:45:04,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199993765] [2021-11-23 03:45:04,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:45:04,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:45:04,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:45:04,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:45:04,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:45:04,991 INFO L87 Difference]: Start difference. First operand 91814 states and 140401 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-23 03:45:12,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:13,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:15,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:18,939 WARN L534 Checker$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 03:45:21,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:45:25,086 WARN L534 Checker$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 03:45:28,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:30,865 WARN L534 Checker$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 03:45:32,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:34,706 WARN L534 Checker$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 03:45:37,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:45:40,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:45:42,646 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 03:45:45,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:45:45,415 INFO L93 Difference]: Finished difference Result 114685 states and 175383 transitions. [2021-11-23 03:45:45,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:45:45,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2021-11-23 03:45:45,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:45:46,113 INFO L225 Difference]: With dead ends: 114685 [2021-11-23 03:45:46,113 INFO L226 Difference]: Without dead ends: 114682 [2021-11-23 03:45:46,163 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 03:45:46,164 INFO L933 BasicCegarLoop]: 5874 mSDtfsCounter, 4896 mSDsluCounter, 5206 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 10574 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.9s IncrementalHoareTripleChecker+Time [2021-11-23 03:45:46,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4904 Valid, 10574 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1030 Invalid, 10 Unknown, 0 Unchecked, 37.9s Time] [2021-11-23 03:45:46,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114682 states. [2021-11-23 03:45:52,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114682 to 114665. [2021-11-23 03:45:52,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114665 states, 69361 states have (on average 1.4068424619022217) internal successors, (97580), 75232 states have internal predecessors, (97580), 38877 states have call successors, (38877), 6427 states have call predecessors, (38877), 6426 states have return successors, (38907), 36548 states have call predecessors, (38907), 38868 states have call successors, (38907) [2021-11-23 03:45:52,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114665 states to 114665 states and 175364 transitions. [2021-11-23 03:45:52,767 INFO L78 Accepts]: Start accepts. Automaton has 114665 states and 175364 transitions. Word has length 60 [2021-11-23 03:45:52,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:45:52,768 INFO L470 AbstractCegarLoop]: Abstraction has 114665 states and 175364 transitions. [2021-11-23 03:45:52,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-23 03:45:52,768 INFO L276 IsEmpty]: Start isEmpty. Operand 114665 states and 175364 transitions. [2021-11-23 03:45:52,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 03:45:52,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:45:52,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:45:52,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 03:45:52,772 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:45:52,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:45:52,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1562764337, now seen corresponding path program 1 times [2021-11-23 03:45:52,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:45:52,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913202908] [2021-11-23 03:45:52,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:45:52,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:45:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:45:53,850 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 03:45:53,850 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:45:53,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913202908] [2021-11-23 03:45:53,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913202908] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:45:53,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:45:53,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:45:53,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775483620] [2021-11-23 03:45:53,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:45:53,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:45:53,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:45:53,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:45:53,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:45:53,853 INFO L87 Difference]: Start difference. First operand 114665 states and 175364 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-23 03:45:55,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:01,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:03,846 WARN L534 Checker$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 03:46:07,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:09,756 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:46:12,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:17,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:19,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:21,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:23,378 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:25,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:28,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:46:29,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:31,884 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 03:46:35,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:46:35,234 INFO L93 Difference]: Finished difference Result 114690 states and 175384 transitions. [2021-11-23 03:46:35,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:46:35,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2021-11-23 03:46:35,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:46:35,774 INFO L225 Difference]: With dead ends: 114690 [2021-11-23 03:46:35,774 INFO L226 Difference]: Without dead ends: 114687 [2021-11-23 03:46:35,825 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 03:46:35,826 INFO L933 BasicCegarLoop]: 5874 mSDtfsCounter, 4897 mSDsluCounter, 5210 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4902 SdHoareTripleChecker+Valid, 10577 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:46:35,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4902 Valid, 10577 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1032 Invalid, 9 Unknown, 0 Unchecked, 38.3s Time] [2021-11-23 03:46:35,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114687 states. [2021-11-23 03:46:41,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114687 to 114674. [2021-11-23 03:46:41,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114674 states, 69366 states have (on average 1.4068131361185596) internal successors, (97585), 75237 states have internal predecessors, (97585), 38877 states have call successors, (38877), 6431 states have call predecessors, (38877), 6430 states have return successors, (38907), 36548 states have call predecessors, (38907), 38868 states have call successors, (38907) [2021-11-23 03:46:42,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114674 states to 114674 states and 175369 transitions. [2021-11-23 03:46:42,848 INFO L78 Accepts]: Start accepts. Automaton has 114674 states and 175369 transitions. Word has length 61 [2021-11-23 03:46:42,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:46:42,848 INFO L470 AbstractCegarLoop]: Abstraction has 114674 states and 175369 transitions. [2021-11-23 03:46:42,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-23 03:46:42,849 INFO L276 IsEmpty]: Start isEmpty. Operand 114674 states and 175369 transitions. [2021-11-23 03:46:42,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 03:46:42,851 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:46:42,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:46:42,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 03:46:42,852 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:46:42,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:46:42,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1199136254, now seen corresponding path program 1 times [2021-11-23 03:46:42,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:46:42,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989850176] [2021-11-23 03:46:42,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:46:42,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:46:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:46:43,428 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 03:46:43,428 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:46:43,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989850176] [2021-11-23 03:46:43,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989850176] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:46:43,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:46:43,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:46:43,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082098068] [2021-11-23 03:46:43,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:46:43,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:46:43,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:46:43,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:46:43,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:46:43,430 INFO L87 Difference]: Start difference. First operand 114674 states and 175369 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-23 03:46:45,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:49,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:55,343 WARN L534 Checker$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 03:46:58,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:00,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:47:06,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:08,658 WARN L534 Checker$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 03:47:10,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:15,231 WARN L534 Checker$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 03:47:18,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:47:20,489 WARN L534 Checker$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 03:47:24,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:47:24,441 INFO L93 Difference]: Finished difference Result 116166 states and 177327 transitions. [2021-11-23 03:47:24,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:47:24,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2021-11-23 03:47:24,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:47:24,984 INFO L225 Difference]: With dead ends: 116166 [2021-11-23 03:47:24,984 INFO L226 Difference]: Without dead ends: 116163 [2021-11-23 03:47:25,039 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 03:47:25,040 INFO L933 BasicCegarLoop]: 5858 mSDtfsCounter, 4736 mSDsluCounter, 5211 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4744 SdHoareTripleChecker+Valid, 10564 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:47:25,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4744 Valid, 10564 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1029 Invalid, 10 Unknown, 0 Unchecked, 37.6s Time] [2021-11-23 03:47:25,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116163 states. [2021-11-23 03:47:31,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116163 to 113149. [2021-11-23 03:47:31,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113149 states, 68401 states have (on average 1.4074063244689405) internal successors, (96268), 74169 states have internal predecessors, (96268), 38341 states have call successors, (38341), 6407 states have call predecessors, (38341), 6406 states have return successors, (38371), 36070 states have call predecessors, (38371), 38332 states have call successors, (38371) [2021-11-23 03:47:32,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113149 states to 113149 states and 172980 transitions. [2021-11-23 03:47:32,224 INFO L78 Accepts]: Start accepts. Automaton has 113149 states and 172980 transitions. Word has length 62 [2021-11-23 03:47:32,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:47:32,224 INFO L470 AbstractCegarLoop]: Abstraction has 113149 states and 172980 transitions. [2021-11-23 03:47:32,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-23 03:47:32,225 INFO L276 IsEmpty]: Start isEmpty. Operand 113149 states and 172980 transitions. [2021-11-23 03:47:32,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 03:47:32,227 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:47:32,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:47:32,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 03:47:32,228 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:47:32,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:47:32,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1483394860, now seen corresponding path program 1 times [2021-11-23 03:47:32,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:47:32,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214625720] [2021-11-23 03:47:32,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:47:32,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:47:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:47:33,332 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 03:47:33,332 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:47:33,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214625720] [2021-11-23 03:47:33,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214625720] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:47:33,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:47:33,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:47:33,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956241542] [2021-11-23 03:47:33,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:47:33,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:47:33,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:47:33,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:47:33,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:47:33,334 INFO L87 Difference]: Start difference. First operand 113149 states and 172980 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-23 03:47:34,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:41,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:43,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:46,123 WARN L534 Checker$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 03:47:48,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:47:51,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:55,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:57,649 WARN L534 Checker$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 03:47:59,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:00,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:04,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:08,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:48:10,705 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 03:48:15,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:48:15,929 INFO L93 Difference]: Finished difference Result 269933 states and 412878 transitions. [2021-11-23 03:48:15,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:48:15,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2021-11-23 03:48:15,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:48:17,035 INFO L225 Difference]: With dead ends: 269933 [2021-11-23 03:48:17,036 INFO L226 Difference]: Without dead ends: 156772 [2021-11-23 03:48:17,755 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 03:48:17,755 INFO L933 BasicCegarLoop]: 6806 mSDtfsCounter, 4904 mSDsluCounter, 5162 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4912 SdHoareTripleChecker+Valid, 11474 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:48:17,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4912 Valid, 11474 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1158 Invalid, 8 Unknown, 0 Unchecked, 37.0s Time] [2021-11-23 03:48:17,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156772 states. [2021-11-23 03:48:25,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156772 to 156626. [2021-11-23 03:48:25,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156626 states, 93547 states have (on average 1.4033587394571712) internal successors, (131280), 102138 states have internal predecessors, (131280), 53992 states have call successors, (53992), 9176 states have call predecessors, (53992), 9086 states have return successors, (54169), 50477 states have call predecessors, (54169), 53981 states have call successors, (54169) [2021-11-23 03:48:27,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156626 states to 156626 states and 239441 transitions. [2021-11-23 03:48:27,351 INFO L78 Accepts]: Start accepts. Automaton has 156626 states and 239441 transitions. Word has length 63 [2021-11-23 03:48:27,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:48:27,352 INFO L470 AbstractCegarLoop]: Abstraction has 156626 states and 239441 transitions. [2021-11-23 03:48:27,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-23 03:48:27,352 INFO L276 IsEmpty]: Start isEmpty. Operand 156626 states and 239441 transitions. [2021-11-23 03:48:27,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-23 03:48:27,362 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:48:27,362 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:48:27,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 03:48:27,363 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:48:27,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:48:27,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1638498407, now seen corresponding path program 1 times [2021-11-23 03:48:27,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:48:27,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348344265] [2021-11-23 03:48:27,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:27,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:48:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat