./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-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_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/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_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/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_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/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 79c59911d632f64892b46f6f0160c6d774def495341e39ab1ffb5f3f230d8f6a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:04:02,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:04:02,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:04:02,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:04:02,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:04:02,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:04:02,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:04:02,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:04:02,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:04:02,601 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:04:02,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:04:02,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:04:02,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:04:02,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:04:02,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:04:02,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:04:02,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:04:02,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:04:02,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:04:02,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:04:02,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:04:02,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:04:02,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:04:02,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:04:02,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:04:02,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:04:02,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:04:02,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:04:02,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:04:02,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:04:02,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:04:02,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:04:02,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:04:02,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:04:02,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:04:02,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:04:02,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:04:02,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:04:02,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:04:02,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:04:02,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:04:02,659 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:04:02,704 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:04:02,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:04:02,705 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:04:02,706 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:04:02,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:04:02,713 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:04:02,714 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:04:02,714 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:04:02,714 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:04:02,714 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:04:02,715 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:04:02,716 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:04:02,716 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:04:02,716 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:04:02,716 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:04:02,717 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:04:02,717 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:04:02,717 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:04:02,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:04:02,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:04:02,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:04:02,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:04:02,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:04:02,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:04:02,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:04:02,720 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:04:02,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:04:02,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:04:02,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:04:02,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:04:02,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:04:02,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:04:02,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:04:02,722 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:04:02,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:04:02,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:04:02,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:04:02,723 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:04:02,723 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_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79c59911d632f64892b46f6f0160c6d774def495341e39ab1ffb5f3f230d8f6a [2021-11-23 02:04:03,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:04:03,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:04:03,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:04:03,050 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:04:03,050 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:04:03,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2021-11-23 02:04:03,143 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/data/bf3ed2227/f18e96cd48dc4d9c8229692bfde9bd0b/FLAG676e42113 [2021-11-23 02:04:04,099 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:04:04,100 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2021-11-23 02:04:04,168 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/data/bf3ed2227/f18e96cd48dc4d9c8229692bfde9bd0b/FLAG676e42113 [2021-11-23 02:04:04,459 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/data/bf3ed2227/f18e96cd48dc4d9c8229692bfde9bd0b [2021-11-23 02:04:04,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:04:04,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:04:04,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:04:04,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:04:04,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:04:04,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:04" (1/1) ... [2021-11-23 02:04:04,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ada572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:04, skipping insertion in model container [2021-11-23 02:04:04,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:04" (1/1) ... [2021-11-23 02:04:04,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:04:04,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:04:05,182 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4401] [2021-11-23 02:04:05,182 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4402-4403] [2021-11-23 02:04:05,575 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_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i[128353,128366] [2021-11-23 02:04:09,267 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:04:09,441 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:04:09,510 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4401] [2021-11-23 02:04:09,510 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4402-4403] [2021-11-23 02:04:09,515 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_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i[128353,128366] [2021-11-23 02:04:09,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:04:10,288 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:04:10,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:10 WrapperNode [2021-11-23 02:04:10,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:04:10,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:04:10,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:04:10,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:04:10,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:10" (1/1) ... [2021-11-23 02:04:10,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:10" (1/1) ... [2021-11-23 02:04:11,237 INFO L137 Inliner]: procedures = 543, calls = 9618, calls flagged for inlining = 292, calls inlined = 262, statements flattened = 16818 [2021-11-23 02:04:11,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:04:11,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:04:11,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:04:11,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:04:11,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:10" (1/1) ... [2021-11-23 02:04:11,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:10" (1/1) ... [2021-11-23 02:04:11,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:10" (1/1) ... [2021-11-23 02:04:11,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:10" (1/1) ... [2021-11-23 02:04:11,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:10" (1/1) ... [2021-11-23 02:04:12,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:10" (1/1) ... [2021-11-23 02:04:12,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:10" (1/1) ... [2021-11-23 02:04:12,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:04:12,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:04:12,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:04:12,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:04:12,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:10" (1/1) ... [2021-11-23 02:04:12,308 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:04:12,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:04:12,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:04:12,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:04:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_par [2021-11-23 02:04:12,389 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_par [2021-11-23 02:04:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-23 02:04:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure integrated_lvds_disable [2021-11-23 02:04:12,390 INFO L138 BoogieDeclarations]: Found implementation of procedure integrated_lvds_disable [2021-11-23 02:04:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lvds_identify_vt1636 [2021-11-23 02:04:12,390 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lvds_identify_vt1636 [2021-11-23 02:04:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-23 02:04:12,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-23 02:04:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:04:12,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:04:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_remove [2021-11-23 02:04:12,391 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_remove [2021-11-23 02:04:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure get_sync [2021-11-23 02:04:12,391 INFO L138 BoogieDeclarations]: Found implementation of procedure get_sync [2021-11-23 02:04:12,392 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-11-23 02:04:12,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-11-23 02:04:12,392 INFO L130 BoogieDeclarations]: Found specification of procedure via_read_reg [2021-11-23 02:04:12,392 INFO L138 BoogieDeclarations]: Found implementation of procedure via_read_reg [2021-11-23 02:04:12,392 INFO L130 BoogieDeclarations]: Found specification of procedure get_pll_output_frequency [2021-11-23 02:04:12,392 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pll_output_frequency [2021-11-23 02:04:12,393 INFO L130 BoogieDeclarations]: Found specification of procedure write_dac_reg [2021-11-23 02:04:12,393 INFO L138 BoogieDeclarations]: Found implementation of procedure write_dac_reg [2021-11-23 02:04:12,393 INFO L130 BoogieDeclarations]: Found specification of procedure vx855_encode_pll [2021-11-23 02:04:12,393 INFO L138 BoogieDeclarations]: Found implementation of procedure vx855_encode_pll [2021-11-23 02:04:12,393 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_iga2_odev_proc_write [2021-11-23 02:04:12,394 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_iga2_odev_proc_write [2021-11-23 02:04:12,394 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_resume [2021-11-23 02:04:12,394 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_resume [2021-11-23 02:04:12,394 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~~bool~0~TO~VOID [2021-11-23 02:04:12,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~~bool~0~TO~VOID [2021-11-23 02:04:12,394 INFO L130 BoogieDeclarations]: Found specification of procedure via_pci_teardown_mmio [2021-11-23 02:04:12,395 INFO L138 BoogieDeclarations]: Found implementation of procedure via_pci_teardown_mmio [2021-11-23 02:04:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_remove [2021-11-23 02:04:12,395 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_remove [2021-11-23 02:04:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_enable_lvds_vt1636 [2021-11-23 02:04:12,395 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_enable_lvds_vt1636 [2021-11-23 02:04:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 02:04:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lock_crt [2021-11-23 02:04:12,396 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lock_crt [2021-11-23 02:04:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_misc_reg_mask [2021-11-23 02:04:12,397 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_misc_reg_mask [2021-11-23 02:04:12,397 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_alloc [2021-11-23 02:04:12,397 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_alloc [2021-11-23 02:04:12,397 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-11-23 02:04:12,398 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-11-23 02:04:12,399 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_check_var [2021-11-23 02:04:12,399 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_check_var [2021-11-23 02:04:12,399 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvp1_proc_write [2021-11-23 02:04:12,399 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvp1_proc_write [2021-11-23 02:04:12,400 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-23 02:04:12,400 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-23 02:04:12,400 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_readbyte [2021-11-23 02:04:12,400 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_readbyte [2021-11-23 02:04:12,400 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_secondary_timing [2021-11-23 02:04:12,401 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_secondary_timing [2021-11-23 02:04:12,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:04:12,401 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-23 02:04:12,402 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-23 02:04:12,402 INFO L130 BoogieDeclarations]: Found specification of procedure set_clock_source_common [2021-11-23 02:04:12,402 INFO L138 BoogieDeclarations]: Found implementation of procedure set_clock_source_common [2021-11-23 02:04:12,402 INFO L130 BoogieDeclarations]: Found specification of procedure set_dpa_vt1636 [2021-11-23 02:04:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure set_dpa_vt1636 [2021-11-23 02:04:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_FIFO_reg [2021-11-23 02:04:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_FIFO_reg [2021-11-23 02:04:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure k800_set_primary_pll_encoded [2021-11-23 02:04:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_set_primary_pll_encoded [2021-11-23 02:04:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure set_color_register [2021-11-23 02:04:12,404 INFO L138 BoogieDeclarations]: Found implementation of procedure set_color_register [2021-11-23 02:04:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-23 02:04:12,405 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-23 02:04:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure __platform_driver_register [2021-11-23 02:04:12,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __platform_driver_register [2021-11-23 02:04:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-23 02:04:12,405 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-23 02:04:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_get_best_mode [2021-11-23 02:04:12,406 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_get_best_mode [2021-11-23 02:04:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:04:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_i2c_write_mask_lvds [2021-11-23 02:04:12,407 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_i2c_write_mask_lvds [2021-11-23 02:04:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-23 02:04:12,407 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-23 02:04:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2021-11-23 02:04:12,407 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2021-11-23 02:04:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:04:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure tmds_register_write [2021-11-23 02:04:12,409 INFO L138 BoogieDeclarations]: Found implementation of procedure tmds_register_write [2021-11-23 02:04:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure tmds_register_read [2021-11-23 02:04:12,409 INFO L138 BoogieDeclarations]: Found implementation of procedure tmds_register_read [2021-11-23 02:04:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_disable_lvds_vt1636 [2021-11-23 02:04:12,410 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_disable_lvds_vt1636 [2021-11-23 02:04:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:04:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_mmio_read [2021-11-23 02:04:12,411 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_mmio_read [2021-11-23 02:04:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_imageblit [2021-11-23 02:04:12,411 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_imageblit [2021-11-23 02:04:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure get_clk_range_index [2021-11-23 02:04:12,411 INFO L138 BoogieDeclarations]: Found implementation of procedure get_clk_range_index [2021-11-23 02:04:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:04:12,412 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:04:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_enable [2021-11-23 02:04:12,412 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_enable [2021-11-23 02:04:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 02:04:12,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 02:04:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-23 02:04:12,413 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-23 02:04:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_copyarea [2021-11-23 02:04:12,414 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_copyarea [2021-11-23 02:04:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 02:04:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 02:04:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-23 02:04:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-23 02:04:12,419 INFO L130 BoogieDeclarations]: Found specification of procedure get_var_refresh [2021-11-23 02:04:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure get_var_refresh [2021-11-23 02:04:12,419 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-11-23 02:04:12,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-11-23 02:04:12,420 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_unlock_crt [2021-11-23 02:04:12,427 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_unlock_crt [2021-11-23 02:04:12,427 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create [2021-11-23 02:04:12,427 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create [2021-11-23 02:04:12,427 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_fetch_count_reg [2021-11-23 02:04:12,428 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_fetch_count_reg [2021-11-23 02:04:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou8_from_user [2021-11-23 02:04:12,428 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou8_from_user [2021-11-23 02:04:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:04:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pm_register [2021-11-23 02:04:12,428 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pm_register [2021-11-23 02:04:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2021-11-23 02:04:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2021-11-23 02:04:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_reset_engine [2021-11-23 02:04:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_reset_engine [2021-11-23 02:04:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_color_depth [2021-11-23 02:04:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_color_depth [2021-11-23 02:04:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:04:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_disable [2021-11-23 02:04:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_disable [2021-11-23 02:04:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 02:04:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 02:04:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:04:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure get_dvi_devices [2021-11-23 02:04:12,431 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dvi_devices [2021-11-23 02:04:12,431 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:04:12,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:04:12,431 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-23 02:04:12,431 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-23 02:04:12,431 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_vt1636_proc_write [2021-11-23 02:04:12,431 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_vt1636_proc_write [2021-11-23 02:04:12,432 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:04:12,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:04:12,432 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_writebyte [2021-11-23 02:04:12,432 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_writebyte [2021-11-23 02:04:12,432 INFO L130 BoogieDeclarations]: Found specification of procedure via_gpio_set [2021-11-23 02:04:12,432 INFO L138 BoogieDeclarations]: Found implementation of procedure via_gpio_set [2021-11-23 02:04:12,433 INFO L130 BoogieDeclarations]: Found specification of procedure var_to_timing [2021-11-23 02:04:12,433 INFO L138 BoogieDeclarations]: Found implementation of procedure var_to_timing [2021-11-23 02:04:12,433 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_secondary_address [2021-11-23 02:04:12,433 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_secondary_address [2021-11-23 02:04:12,433 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_primary_timing [2021-11-23 02:04:12,433 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_primary_timing [2021-11-23 02:04:12,433 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_reg [2021-11-23 02:04:12,434 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_reg [2021-11-23 02:04:12,434 INFO L130 BoogieDeclarations]: Found specification of procedure register_framebuffer [2021-11-23 02:04:12,434 INFO L138 BoogieDeclarations]: Found implementation of procedure register_framebuffer [2021-11-23 02:04:12,434 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-23 02:04:12,434 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-23 02:04:12,434 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_read [2021-11-23 02:04:12,435 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_read [2021-11-23 02:04:12,435 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_enable [2021-11-23 02:04:12,435 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_enable [2021-11-23 02:04:12,435 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_probe [2021-11-23 02:04:12,435 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_probe [2021-11-23 02:04:12,435 INFO L130 BoogieDeclarations]: Found specification of procedure set_engine_pll_encoded [2021-11-23 02:04:12,435 INFO L138 BoogieDeclarations]: Found implementation of procedure set_engine_pll_encoded [2021-11-23 02:04:12,436 INFO L130 BoogieDeclarations]: Found specification of procedure odev_update [2021-11-23 02:04:12,436 INFO L138 BoogieDeclarations]: Found implementation of procedure odev_update [2021-11-23 02:04:12,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:04:12,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:04:12,436 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_sync_polarity [2021-11-23 02:04:12,436 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_sync_polarity [2021-11-23 02:04:12,437 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-23 02:04:12,437 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-23 02:04:12,437 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_suspend [2021-11-23 02:04:12,437 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_suspend [2021-11-23 02:04:12,437 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_i2c_read_lvds [2021-11-23 02:04:12,437 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_i2c_read_lvds [2021-11-23 02:04:12,437 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_suspend [2021-11-23 02:04:12,438 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_suspend [2021-11-23 02:04:12,438 INFO L130 BoogieDeclarations]: Found specification of procedure via_pci_remove [2021-11-23 02:04:12,438 INFO L138 BoogieDeclarations]: Found implementation of procedure via_pci_remove [2021-11-23 02:04:12,438 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2021-11-23 02:04:12,438 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2021-11-23 02:04:12,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:04:12,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:04:12,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_2 [2021-11-23 02:04:12,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_2 [2021-11-23 02:04:12,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:04:12,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:04:12,439 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_release [2021-11-23 02:04:12,440 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_release [2021-11-23 02:04:12,440 INFO L130 BoogieDeclarations]: Found specification of procedure parse_mode [2021-11-23 02:04:12,440 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_mode [2021-11-23 02:04:12,440 INFO L130 BoogieDeclarations]: Found specification of procedure set_lcd_output_path [2021-11-23 02:04:12,440 INFO L138 BoogieDeclarations]: Found implementation of procedure set_lcd_output_path [2021-11-23 02:04:12,440 INFO L130 BoogieDeclarations]: Found specification of procedure via_teardown_subdevs [2021-11-23 02:04:12,440 INFO L138 BoogieDeclarations]: Found implementation of procedure via_teardown_subdevs [2021-11-23 02:04:12,441 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-23 02:04:12,441 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-23 02:04:12,441 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_state [2021-11-23 02:04:12,441 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_state [2021-11-23 02:04:12,441 INFO L130 BoogieDeclarations]: Found specification of procedure get_lcd_devices [2021-11-23 02:04:12,441 INFO L138 BoogieDeclarations]: Found implementation of procedure get_lcd_devices [2021-11-23 02:04:12,442 INFO L130 BoogieDeclarations]: Found specification of procedure probe___0 [2021-11-23 02:04:12,442 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___0 [2021-11-23 02:04:12,442 INFO L130 BoogieDeclarations]: Found specification of procedure probe___1 [2021-11-23 02:04:12,442 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___1 [2021-11-23 02:04:12,442 INFO L130 BoogieDeclarations]: Found specification of procedure probe___3 [2021-11-23 02:04:12,442 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___3 [2021-11-23 02:04:12,442 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_source [2021-11-23 02:04:12,443 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_source [2021-11-23 02:04:12,443 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_fill_var_timing_info [2021-11-23 02:04:12,443 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_fill_var_timing_info [2021-11-23 02:04:12,443 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-23 02:04:12,443 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-23 02:04:12,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_8 [2021-11-23 02:04:12,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_8 [2021-11-23 02:04:12,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 02:04:12,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 02:04:12,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2021-11-23 02:04:12,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2021-11-23 02:04:12,444 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2021-11-23 02:04:12,444 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2021-11-23 02:04:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_reg_mask [2021-11-23 02:04:12,445 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_reg_mask [2021-11-23 02:04:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~structbegin~~u16~0~u8~0~u8~0~structend~~TO~VOID [2021-11-23 02:04:12,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~structbegin~~u16~0~u8~0~u8~0~structend~~TO~VOID [2021-11-23 02:04:12,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:04:12,450 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:04:12,450 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 02:04:12,450 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 02:04:12,450 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_resume [2021-11-23 02:04:12,450 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_resume [2021-11-23 02:04:12,450 INFO L130 BoogieDeclarations]: Found specification of procedure via_resume [2021-11-23 02:04:12,451 INFO L138 BoogieDeclarations]: Found implementation of procedure via_resume [2021-11-23 02:04:12,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:04:12,451 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 02:04:12,452 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 02:04:12,452 INFO L130 BoogieDeclarations]: Found specification of procedure cle266_encode_pll [2021-11-23 02:04:12,452 INFO L138 BoogieDeclarations]: Found implementation of procedure cle266_encode_pll [2021-11-23 02:04:12,452 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir [2021-11-23 02:04:12,452 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir [2021-11-23 02:04:12,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:04:12,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-23 02:04:12,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-23 02:04:12,453 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_write_regx [2021-11-23 02:04:12,453 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_write_regx [2021-11-23 02:04:12,453 INFO L130 BoogieDeclarations]: Found specification of procedure fb_dealloc_cmap [2021-11-23 02:04:12,453 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_dealloc_cmap [2021-11-23 02:04:12,453 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 02:04:12,454 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 02:04:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_free [2021-11-23 02:04:12,454 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_free [2021-11-23 02:04:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:04:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-23 02:04:12,454 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-23 02:04:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_suspend [2021-11-23 02:04:12,455 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_suspend [2021-11-23 02:04:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_sync [2021-11-23 02:04:12,455 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_sync [2021-11-23 02:04:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_probe [2021-11-23 02:04:12,455 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_probe [2021-11-23 02:04:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-23 02:04:12,455 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-23 02:04:12,456 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-23 02:04:12,456 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-23 02:04:12,456 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_framebuffer [2021-11-23 02:04:12,456 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_framebuffer [2021-11-23 02:04:12,456 INFO L130 BoogieDeclarations]: Found specification of procedure get_best_mode [2021-11-23 02:04:12,456 INFO L138 BoogieDeclarations]: Found implementation of procedure get_best_mode [2021-11-23 02:04:12,457 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_probe [2021-11-23 02:04:12,457 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_probe [2021-11-23 02:04:12,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 02:04:12,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 02:04:12,457 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvp0_proc_write [2021-11-23 02:04:12,457 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvp0_proc_write [2021-11-23 02:04:12,457 INFO L130 BoogieDeclarations]: Found specification of procedure get_pll_config [2021-11-23 02:04:12,458 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pll_config [2021-11-23 02:04:12,458 INFO L130 BoogieDeclarations]: Found specification of procedure parse_port [2021-11-23 02:04:12,458 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_port [2021-11-23 02:04:12,458 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_update_fix [2021-11-23 02:04:12,458 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_update_fix [2021-11-23 02:04:12,458 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~u8~0~TO~VOID [2021-11-23 02:04:12,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~u8~0~TO~VOID [2021-11-23 02:04:12,459 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modedb [2021-11-23 02:04:12,459 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modedb [2021-11-23 02:04:12,459 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_reg [2021-11-23 02:04:12,459 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_reg [2021-11-23 02:04:12,459 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2021-11-23 02:04:12,459 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2021-11-23 02:04:12,459 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_fillrect [2021-11-23 02:04:12,460 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_fillrect [2021-11-23 02:04:12,460 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_setup_fixinfo [2021-11-23 02:04:12,460 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_setup_fixinfo [2021-11-23 02:04:12,460 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_vclock [2021-11-23 02:04:12,460 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_vclock [2021-11-23 02:04:12,460 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_sense [2021-11-23 02:04:12,461 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_sense [2021-11-23 02:04:12,461 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_iga_path [2021-11-23 02:04:12,461 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_iga_path [2021-11-23 02:04:12,461 INFO L130 BoogieDeclarations]: Found specification of procedure check_tmds_chip [2021-11-23 02:04:12,461 INFO L138 BoogieDeclarations]: Found implementation of procedure check_tmds_chip [2021-11-23 02:04:12,461 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 02:04:12,461 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 02:04:12,462 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pm_unregister [2021-11-23 02:04:12,462 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pm_unregister [2021-11-23 02:04:12,462 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_get_preferred_mode [2021-11-23 02:04:12,462 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_get_preferred_mode [2021-11-23 02:04:12,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:04:12,462 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-11-23 02:04:12,462 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-11-23 02:04:12,463 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2021-11-23 02:04:12,463 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2021-11-23 02:04:12,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:04:12,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:04:12,463 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dfph_proc_write [2021-11-23 02:04:12,463 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dfph_proc_write [2021-11-23 02:04:12,463 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_disable [2021-11-23 02:04:12,464 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_disable [2021-11-23 02:04:12,464 INFO L130 BoogieDeclarations]: Found specification of procedure k800_encode_pll [2021-11-23 02:04:12,464 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_encode_pll [2021-11-23 02:04:12,464 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-23 02:04:12,464 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-23 02:04:12,464 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-23 02:04:12,465 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-23 02:04:12,465 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_set_mode [2021-11-23 02:04:12,465 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_set_mode [2021-11-23 02:04:12,465 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_enable [2021-11-23 02:04:12,465 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_enable [2021-11-23 02:04:12,465 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_set_mode [2021-11-23 02:04:12,465 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_set_mode [2021-11-23 02:04:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-23 02:04:12,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-23 02:04:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_query_EDID [2021-11-23 02:04:12,466 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_query_EDID [2021-11-23 02:04:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pan_display [2021-11-23 02:04:12,466 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pan_display [2021-11-23 02:04:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2021-11-23 02:04:12,467 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2021-11-23 02:04:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2021-11-23 02:04:12,467 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2021-11-23 02:04:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure via_fb_pci_remove [2021-11-23 02:04:12,467 INFO L138 BoogieDeclarations]: Found implementation of procedure via_fb_pci_remove [2021-11-23 02:04:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_dpa_gfx [2021-11-23 02:04:12,467 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_dpa_gfx [2021-11-23 02:04:12,468 INFO L130 BoogieDeclarations]: Found specification of procedure k800_set_secondary_pll_encoded [2021-11-23 02:04:12,468 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_set_secondary_pll_encoded [2021-11-23 02:04:12,468 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dfpl_proc_write [2021-11-23 02:04:12,468 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dfpl_proc_write [2021-11-23 02:04:12,468 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_update_device_setting [2021-11-23 02:04:12,468 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_update_device_setting [2021-11-23 02:04:12,469 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_bus_free [2021-11-23 02:04:12,469 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_bus_free [2021-11-23 02:04:12,469 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_primary_address [2021-11-23 02:04:12,469 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_primary_address [2021-11-23 02:04:12,469 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-23 02:04:12,469 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-23 02:04:12,469 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_init_lvds_output_interface [2021-11-23 02:04:12,470 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_init_lvds_output_interface [2021-11-23 02:04:12,470 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_bpp [2021-11-23 02:04:12,470 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_bpp [2021-11-23 02:04:12,470 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-11-23 02:04:12,470 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-11-23 02:04:12,470 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_fill_crtc_timing [2021-11-23 02:04:12,471 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_fill_crtc_timing [2021-11-23 02:04:12,471 INFO L130 BoogieDeclarations]: Found specification of procedure set_source_common [2021-11-23 02:04:12,471 INFO L138 BoogieDeclarations]: Found implementation of procedure set_source_common [2021-11-23 02:04:12,471 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-23 02:04:12,471 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-23 02:04:12,471 INFO L130 BoogieDeclarations]: Found specification of procedure machine_is_olpc [2021-11-23 02:04:12,471 INFO L138 BoogieDeclarations]: Found implementation of procedure machine_is_olpc [2021-11-23 02:04:12,472 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-23 02:04:12,472 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-23 02:04:12,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:04:12,472 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_find_i2c_adapter [2021-11-23 02:04:12,472 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_find_i2c_adapter [2021-11-23 02:04:12,472 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_iga1_odev_proc_write [2021-11-23 02:04:12,473 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_iga1_odev_proc_write [2021-11-23 02:04:12,473 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_mmio_write [2021-11-23 02:04:12,473 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_mmio_write [2021-11-23 02:04:12,473 INFO L130 BoogieDeclarations]: Found specification of procedure integrated_lvds_enable [2021-11-23 02:04:12,473 INFO L138 BoogieDeclarations]: Found implementation of procedure integrated_lvds_enable [2021-11-23 02:04:12,473 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_show_hw_cursor [2021-11-23 02:04:12,473 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_show_hw_cursor [2021-11-23 02:04:12,474 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou8 [2021-11-23 02:04:12,474 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou8 [2021-11-23 02:04:12,474 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2021-11-23 02:04:12,474 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2021-11-23 02:04:13,993 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:04:14,002 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:04:18,219 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:05:02,897 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:05:12,357 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:05:12,357 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 02:05:12,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:12 BoogieIcfgContainer [2021-11-23 02:05:12,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:05:12,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:05:12,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:05:12,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:05:12,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:04:04" (1/3) ... [2021-11-23 02:05:12,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d4ceb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:05:12, skipping insertion in model container [2021-11-23 02:05:12,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:10" (2/3) ... [2021-11-23 02:05:12,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d4ceb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:05:12, skipping insertion in model container [2021-11-23 02:05:12,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:12" (3/3) ... [2021-11-23 02:05:12,376 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2021-11-23 02:05:12,381 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:05:12,382 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:05:12,444 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:05:12,451 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:05:12,452 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:05:12,535 INFO L276 IsEmpty]: Start isEmpty. Operand has 3336 states, 2023 states have (on average 1.4127533366287692) internal successors, (2858), 2201 states have internal predecessors, (2858), 1123 states have call successors, (1123), 189 states have call predecessors, (1123), 188 states have return successors, (1104), 1043 states have call predecessors, (1104), 1104 states have call successors, (1104) [2021-11-23 02:05:12,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-23 02:05:12,564 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:05:12,565 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:05:12,566 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:05:12,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:05:12,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1854216198, now seen corresponding path program 1 times [2021-11-23 02:05:12,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:05:12,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718435632] [2021-11-23 02:05:12,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:12,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:05:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:05:13,937 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 02:05:13,939 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:05:13,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718435632] [2021-11-23 02:05:13,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718435632] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:05:13,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:05:13,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:05:13,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808929372] [2021-11-23 02:05:13,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:05:13,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:05:13,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:05:13,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:05:13,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:05:14,004 INFO L87 Difference]: Start difference. First operand has 3336 states, 2023 states have (on average 1.4127533366287692) internal successors, (2858), 2201 states have internal predecessors, (2858), 1123 states have call successors, (1123), 189 states have call predecessors, (1123), 188 states have return successors, (1104), 1043 states have call predecessors, (1104), 1104 states have call successors, (1104) Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-23 02:05:15,418 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 02:05:22,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:05:24,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:05:26,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:05:28,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:05:31,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:05:35,818 WARN L534 Checker$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 02:05:38,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:05:40,800 WARN L534 Checker$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 02:05:43,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:05:46,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:05:48,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:05:48,775 INFO L93 Difference]: Finished difference Result 9306 states and 14175 transitions. [2021-11-23 02:05:48,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:05:48,777 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), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 72 [2021-11-23 02:05:48,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:05:48,843 INFO L225 Difference]: With dead ends: 9306 [2021-11-23 02:05:48,843 INFO L226 Difference]: Without dead ends: 5920 [2021-11-23 02:05:48,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:05:48,874 INFO L933 BasicCegarLoop]: 5637 mSDtfsCounter, 3960 mSDsluCounter, 5029 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3962 SdHoareTripleChecker+Valid, 10193 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:05:48,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3962 Valid, 10193 Invalid, 1019 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1008 Invalid, 9 Unknown, 0 Unchecked, 34.2s Time] [2021-11-23 02:05:48,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5920 states. [2021-11-23 02:05:49,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5920 to 5913. [2021-11-23 02:05:49,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5913 states, 3590 states have (on average 1.392757660167131) internal successors, (5000), 3866 states have internal predecessors, (5000), 1972 states have call successors, (1972), 351 states have call predecessors, (1972), 350 states have return successors, (1971), 1860 states have call predecessors, (1971), 1971 states have call successors, (1971) [2021-11-23 02:05:49,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5913 states to 5913 states and 8943 transitions. [2021-11-23 02:05:49,595 INFO L78 Accepts]: Start accepts. Automaton has 5913 states and 8943 transitions. Word has length 72 [2021-11-23 02:05:49,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:05:49,595 INFO L470 AbstractCegarLoop]: Abstraction has 5913 states and 8943 transitions. [2021-11-23 02:05:49,595 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), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-23 02:05:49,596 INFO L276 IsEmpty]: Start isEmpty. Operand 5913 states and 8943 transitions. [2021-11-23 02:05:49,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-23 02:05:49,620 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:05:49,621 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1] [2021-11-23 02:05:49,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:05:49,621 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:05:49,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:05:49,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1827282600, now seen corresponding path program 1 times [2021-11-23 02:05:49,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:05:49,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905273990] [2021-11-23 02:05:49,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:49,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:05:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:05:50,441 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-23 02:05:50,441 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:05:50,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905273990] [2021-11-23 02:05:50,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905273990] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:05:50,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:05:50,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:05:50,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630802276] [2021-11-23 02:05:50,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:05:50,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:05:50,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:05:50,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:05:50,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:05:50,445 INFO L87 Difference]: Start difference. First operand 5913 states and 8943 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-23 02:05:51,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:05:56,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:05:58,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:05:59,295 WARN L534 Checker$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 02:06:01,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:06:04,090 WARN L534 Checker$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 02:06:06,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:06:08,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:06:09,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:06:12,954 WARN L534 Checker$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 02:06:16,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:06:19,015 WARN L534 Checker$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 02:06:21,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:06:23,658 WARN L534 Checker$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 02:06:25,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:25,454 INFO L93 Difference]: Finished difference Result 16356 states and 24795 transitions. [2021-11-23 02:06:25,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:06:25,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 101 [2021-11-23 02:06:25,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:25,544 INFO L225 Difference]: With dead ends: 16356 [2021-11-23 02:06:25,544 INFO L226 Difference]: Without dead ends: 10448 [2021-11-23 02:06:25,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:06:25,583 INFO L933 BasicCegarLoop]: 5401 mSDtfsCounter, 3880 mSDsluCounter, 5001 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3890 SdHoareTripleChecker+Valid, 9929 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:25,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3890 Valid, 9929 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 973 Invalid, 9 Unknown, 0 Unchecked, 34.5s Time] [2021-11-23 02:06:25,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10448 states. [2021-11-23 02:06:26,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10448 to 10439. [2021-11-23 02:06:26,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10439 states, 6348 states have (on average 1.4046943919344677) internal successors, (8917), 6862 states have internal predecessors, (8917), 3466 states have call successors, (3466), 625 states have call predecessors, (3466), 624 states have return successors, (3466), 3260 states have call predecessors, (3466), 3465 states have call successors, (3466) [2021-11-23 02:06:26,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10439 states to 10439 states and 15849 transitions. [2021-11-23 02:06:26,394 INFO L78 Accepts]: Start accepts. Automaton has 10439 states and 15849 transitions. Word has length 101 [2021-11-23 02:06:26,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:26,396 INFO L470 AbstractCegarLoop]: Abstraction has 10439 states and 15849 transitions. [2021-11-23 02:06:26,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-23 02:06:26,397 INFO L276 IsEmpty]: Start isEmpty. Operand 10439 states and 15849 transitions. [2021-11-23 02:06:26,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-23 02:06:26,429 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:26,430 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:06:26,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:06:26,430 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:06:26,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:26,431 INFO L85 PathProgramCache]: Analyzing trace with hash 140567436, now seen corresponding path program 1 times [2021-11-23 02:06:26,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:26,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324119009] [2021-11-23 02:06:26,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:26,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:27,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1203 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1203 trivial. 0 not checked. [2021-11-23 02:06:27,344 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:27,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324119009] [2021-11-23 02:06:27,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324119009] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:27,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:27,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:06:27,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507687107] [2021-11-23 02:06:27,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:27,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:06:27,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:27,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:06:27,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:06:27,346 INFO L87 Difference]: Start difference. First operand 10439 states and 15849 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-23 02:06:28,889 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:06:32,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:06:33,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:06:35,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:06:37,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:06:40,158 WARN L534 Checker$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 02:06:41,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:06:49,894 WARN L534 Checker$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 02:06:52,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:06:53,291 WARN L534 Checker$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 02:06:55,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:06:57,711 WARN L534 Checker$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 02:06:59,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:01,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:07:01,011 INFO L93 Difference]: Finished difference Result 20327 states and 30984 transitions. [2021-11-23 02:07:01,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:07:01,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 223 [2021-11-23 02:07:01,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:07:01,171 INFO L225 Difference]: With dead ends: 20327 [2021-11-23 02:07:01,171 INFO L226 Difference]: Without dead ends: 20324 [2021-11-23 02:07:01,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:07:01,186 INFO L933 BasicCegarLoop]: 5579 mSDtfsCounter, 4549 mSDsluCounter, 4991 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4554 SdHoareTripleChecker+Valid, 10106 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:07:01,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4554 Valid, 10106 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 956 Invalid, 8 Unknown, 0 Unchecked, 33.2s Time] [2021-11-23 02:07:01,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20324 states. [2021-11-23 02:07:02,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20324 to 20272. [2021-11-23 02:07:02,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20272 states, 12366 states have (on average 1.4112081513828238) internal successors, (17451), 13391 states have internal predecessors, (17451), 6696 states have call successors, (6696), 1210 states have call predecessors, (6696), 1209 states have return successors, (6740), 6285 states have call predecessors, (6740), 6695 states have call successors, (6740) [2021-11-23 02:07:02,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20272 states to 20272 states and 30887 transitions. [2021-11-23 02:07:02,655 INFO L78 Accepts]: Start accepts. Automaton has 20272 states and 30887 transitions. Word has length 223 [2021-11-23 02:07:02,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:07:02,658 INFO L470 AbstractCegarLoop]: Abstraction has 20272 states and 30887 transitions. [2021-11-23 02:07:02,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-23 02:07:02,659 INFO L276 IsEmpty]: Start isEmpty. Operand 20272 states and 30887 transitions. [2021-11-23 02:07:02,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-23 02:07:02,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:02,738 INFO L514 BasicCegarLoop]: trace histogram [29, 29, 29, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:02,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:07:02,739 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:07:02,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:02,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1834474890, now seen corresponding path program 1 times [2021-11-23 02:07:02,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:02,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005420712] [2021-11-23 02:07:02,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:02,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:03,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1646 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1646 trivial. 0 not checked. [2021-11-23 02:07:03,777 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:03,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005420712] [2021-11-23 02:07:03,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005420712] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:03,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:07:03,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:07:03,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054810228] [2021-11-23 02:07:03,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:03,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:07:03,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:03,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:07:03,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:07:03,780 INFO L87 Difference]: Start difference. First operand 20272 states and 30887 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-23 02:07:05,927 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 02:07:09,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:11,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:13,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:15,446 WARN L534 Checker$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 02:07:18,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:21,995 WARN L534 Checker$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 02:07:24,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:26,409 WARN L534 Checker$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 02:07:31,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:07:33,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:36,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:38,430 WARN L534 Checker$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 02:07:41,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:43,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:07:45,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:07:45,719 INFO L93 Difference]: Finished difference Result 30190 states and 46072 transitions. [2021-11-23 02:07:45,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:07:45,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 293 [2021-11-23 02:07:45,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:07:45,887 INFO L225 Difference]: With dead ends: 30190 [2021-11-23 02:07:45,887 INFO L226 Difference]: Without dead ends: 30187 [2021-11-23 02:07:45,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:07:45,904 INFO L933 BasicCegarLoop]: 5611 mSDtfsCounter, 4568 mSDsluCounter, 4993 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 1 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4576 SdHoareTripleChecker+Valid, 10138 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:07:45,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4576 Valid, 10138 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 955 Invalid, 11 Unknown, 0 Unchecked, 41.3s Time] [2021-11-23 02:07:45,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30187 states. [2021-11-23 02:07:47,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30187 to 30132. [2021-11-23 02:07:47,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30132 states, 18402 states have (on average 1.4135420063036626) internal successors, (26012), 19938 states have internal predecessors, (26012), 9936 states have call successors, (9936), 1794 states have call predecessors, (9936), 1793 states have return successors, (10024), 9320 states have call predecessors, (10024), 9935 states have call successors, (10024) [2021-11-23 02:07:47,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30132 states to 30132 states and 45972 transitions. [2021-11-23 02:07:47,992 INFO L78 Accepts]: Start accepts. Automaton has 30132 states and 45972 transitions. Word has length 293 [2021-11-23 02:07:47,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:07:47,994 INFO L470 AbstractCegarLoop]: Abstraction has 30132 states and 45972 transitions. [2021-11-23 02:07:47,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-23 02:07:47,994 INFO L276 IsEmpty]: Start isEmpty. Operand 30132 states and 45972 transitions. [2021-11-23 02:07:48,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 658 [2021-11-23 02:07:48,408 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:48,409 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 20, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:48,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:07:48,410 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:07:48,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:48,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1377858341, now seen corresponding path program 1 times [2021-11-23 02:07:48,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:48,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49154345] [2021-11-23 02:07:48,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:48,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:49,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 1911 trivial. 0 not checked. [2021-11-23 02:07:49,695 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:49,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49154345] [2021-11-23 02:07:49,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49154345] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:07:49,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92778549] [2021-11-23 02:07:49,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:49,696 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:07:49,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:07:49,701 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:07:49,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:07:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:54,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 15245 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 02:07:54,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:07:56,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2021-11-23 02:07:56,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:07:56,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92778549] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:56,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:07:56,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-11-23 02:07:56,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413759109] [2021-11-23 02:07:56,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:56,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:07:56,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:56,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:07:56,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:07:56,356 INFO L87 Difference]: Start difference. First operand 30132 states and 45972 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 2 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2021-11-23 02:07:57,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:02,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:06,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:08,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:11,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:08:17,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:20,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:24,711 WARN L534 Checker$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 02:08:26,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:28,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:28,192 INFO L93 Difference]: Finished difference Result 60256 states and 91934 transitions. [2021-11-23 02:08:28,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:08:28,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 2 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) Word has length 657 [2021-11-23 02:08:28,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:28,545 INFO L225 Difference]: With dead ends: 60256 [2021-11-23 02:08:28,545 INFO L226 Difference]: Without dead ends: 30132 [2021-11-23 02:08:28,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 661 GetRequests, 657 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:08:28,688 INFO L933 BasicCegarLoop]: 4547 mSDtfsCounter, 62 mSDsluCounter, 4931 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 9017 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:28,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 9017 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 940 Invalid, 8 Unknown, 0 Unchecked, 31.0s Time] [2021-11-23 02:08:28,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30132 states. [2021-11-23 02:08:30,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30132 to 30132. [2021-11-23 02:08:30,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30132 states, 18402 states have (on average 1.4132159547875232) internal successors, (26006), 19932 states have internal predecessors, (26006), 9936 states have call successors, (9936), 1794 states have call predecessors, (9936), 1793 states have return successors, (10024), 9320 states have call predecessors, (10024), 9935 states have call successors, (10024) [2021-11-23 02:08:30,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30132 states to 30132 states and 45966 transitions. [2021-11-23 02:08:30,689 INFO L78 Accepts]: Start accepts. Automaton has 30132 states and 45966 transitions. Word has length 657 [2021-11-23 02:08:30,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:30,705 INFO L470 AbstractCegarLoop]: Abstraction has 30132 states and 45966 transitions. [2021-11-23 02:08:30,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 2 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2021-11-23 02:08:30,706 INFO L276 IsEmpty]: Start isEmpty. Operand 30132 states and 45966 transitions. [2021-11-23 02:08:30,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 681 [2021-11-23 02:08:30,862 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:30,863 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 23, 8, 8, 8, 8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:30,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:08:31,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:08:31,085 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:08:31,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:31,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1390488254, now seen corresponding path program 1 times [2021-11-23 02:08:31,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:31,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898182362] [2021-11-23 02:08:31,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:31,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:32,485 INFO L134 CoverageAnalysis]: Checked inductivity of 2085 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2075 trivial. 0 not checked. [2021-11-23 02:08:32,487 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:32,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898182362] [2021-11-23 02:08:32,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898182362] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:08:32,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241430433] [2021-11-23 02:08:32,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:32,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:08:32,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:08:32,493 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:08:32,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:08:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:36,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 15333 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 02:08:36,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:08:41,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2085 backedges. 372 proven. 0 refuted. 0 times theorem prover too weak. 1713 trivial. 0 not checked. [2021-11-23 02:08:41,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:08:41,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241430433] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:41,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:08:41,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-11-23 02:08:41,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351981410] [2021-11-23 02:08:41,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:41,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:08:41,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:41,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:08:41,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:08:41,656 INFO L87 Difference]: Start difference. First operand 30132 states and 45966 transitions. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 2 states have internal predecessors, (267), 2 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) [2021-11-23 02:08:42,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:46,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:49,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:51,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:54,576 WARN L534 Checker$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 02:08:56,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:58,843 WARN L534 Checker$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 02:09:00,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:04,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:07,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:09,236 WARN L534 Checker$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 02:09:13,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:09:16,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:17,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:09:17,762 INFO L93 Difference]: Finished difference Result 80518 states and 122794 transitions. [2021-11-23 02:09:17,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:09:17,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 2 states have internal predecessors, (267), 2 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) Word has length 680 [2021-11-23 02:09:17,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:09:18,012 INFO L225 Difference]: With dead ends: 80518 [2021-11-23 02:09:18,012 INFO L226 Difference]: Without dead ends: 50394 [2021-11-23 02:09:18,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 684 GetRequests, 680 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:09:18,365 INFO L933 BasicCegarLoop]: 5647 mSDtfsCounter, 4643 mSDsluCounter, 5016 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4652 SdHoareTripleChecker+Valid, 10188 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:09:18,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4652 Valid, 10188 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 958 Invalid, 7 Unknown, 0 Unchecked, 34.9s Time] [2021-11-23 02:09:18,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50394 states. [2021-11-23 02:09:20,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50394 to 50386. [2021-11-23 02:09:20,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50386 states, 30759 states have (on average 1.4123346012549172) internal successors, (43442), 33309 states have internal predecessors, (43442), 16626 states have call successors, (16626), 3001 states have call predecessors, (16626), 3000 states have return successors, (16762), 15600 states have call predecessors, (16762), 16625 states have call successors, (16762) [2021-11-23 02:09:21,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50386 states to 50386 states and 76830 transitions. [2021-11-23 02:09:21,251 INFO L78 Accepts]: Start accepts. Automaton has 50386 states and 76830 transitions. Word has length 680 [2021-11-23 02:09:21,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:09:21,253 INFO L470 AbstractCegarLoop]: Abstraction has 50386 states and 76830 transitions. [2021-11-23 02:09:21,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 2 states have internal predecessors, (267), 2 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) [2021-11-23 02:09:21,253 INFO L276 IsEmpty]: Start isEmpty. Operand 50386 states and 76830 transitions. [2021-11-23 02:09:21,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2021-11-23 02:09:21,667 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:09:21,668 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 23, 8, 8, 8, 8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:09:21,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:09:21,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:09:21,885 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:09:21,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:09:21,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1125868277, now seen corresponding path program 1 times [2021-11-23 02:09:21,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:09:21,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964565603] [2021-11-23 02:09:21,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:09:21,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:09:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:09:22,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2085 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2075 trivial. 0 not checked. [2021-11-23 02:09:22,957 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:09:22,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964565603] [2021-11-23 02:09:22,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964565603] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:09:22,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667458285] [2021-11-23 02:09:22,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:09:22,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:09:22,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:09:22,961 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:09:22,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:09:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:09:26,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 15354 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:09:26,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:09:32,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2085 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 1731 trivial. 0 not checked. [2021-11-23 02:09:32,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:09:32,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667458285] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:09:32,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:09:32,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-11-23 02:09:32,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946090443] [2021-11-23 02:09:32,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:09:32,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:09:32,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:09:32,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:09:32,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:09:32,276 INFO L87 Difference]: Start difference. First operand 50386 states and 76830 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 2 states have internal predecessors, (261), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2021-11-23 02:09:33,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:37,622 WARN L534 Checker$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 02:09:39,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:41,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:44,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:09:46,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:50,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:55,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:09:58,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:00,768 WARN L534 Checker$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 02:10:02,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:06,192 WARN L534 Checker$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 02:10:07,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:08,604 WARN L534 Checker$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 02:10:11,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:12,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:10:12,815 INFO L93 Difference]: Finished difference Result 130535 states and 199577 transitions. [2021-11-23 02:10:12,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:10:12,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 2 states have internal predecessors, (261), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) Word has length 682 [2021-11-23 02:10:12,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:10:13,425 INFO L225 Difference]: With dead ends: 130535 [2021-11-23 02:10:13,425 INFO L226 Difference]: Without dead ends: 80157 [2021-11-23 02:10:13,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 686 GetRequests, 682 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:10:13,644 INFO L933 BasicCegarLoop]: 5696 mSDtfsCounter, 4585 mSDsluCounter, 4977 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 13 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4589 SdHoareTripleChecker+Valid, 10208 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:10:13,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4589 Valid, 10208 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 981 Invalid, 8 Unknown, 0 Unchecked, 38.5s Time] [2021-11-23 02:10:13,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80157 states. [2021-11-23 02:10:17,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80157 to 80153. [2021-11-23 02:10:17,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80153 states, 48995 states have (on average 1.4107970201040922) internal successors, (69122), 52994 states have internal predecessors, (69122), 26366 states have call successors, (26366), 4792 states have call predecessors, (26366), 4791 states have return successors, (26759), 24789 states have call predecessors, (26759), 26365 states have call successors, (26759) [2021-11-23 02:10:18,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80153 states to 80153 states and 122247 transitions. [2021-11-23 02:10:18,599 INFO L78 Accepts]: Start accepts. Automaton has 80153 states and 122247 transitions. Word has length 682 [2021-11-23 02:10:18,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:10:18,601 INFO L470 AbstractCegarLoop]: Abstraction has 80153 states and 122247 transitions. [2021-11-23 02:10:18,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 2 states have internal predecessors, (261), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2021-11-23 02:10:18,602 INFO L276 IsEmpty]: Start isEmpty. Operand 80153 states and 122247 transitions. [2021-11-23 02:10:18,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2021-11-23 02:10:18,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:10:18,886 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 23, 8, 8, 8, 8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:10:18,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:10:19,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:10:19,101 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:10:19,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:10:19,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1435752760, now seen corresponding path program 1 times [2021-11-23 02:10:19,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:10:19,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646986916] [2021-11-23 02:10:19,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:10:19,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:10:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:10:20,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2073 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2063 trivial. 0 not checked. [2021-11-23 02:10:20,325 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:10:20,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646986916] [2021-11-23 02:10:20,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646986916] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:10:20,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437064303] [2021-11-23 02:10:20,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:10:20,326 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:10:20,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:10:20,327 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:10:20,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:10:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:10:24,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 15414 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:10:24,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:10:30,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2073 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2073 trivial. 0 not checked. [2021-11-23 02:10:30,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:10:30,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437064303] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:10:30,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:10:30,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-11-23 02:10:30,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244372740] [2021-11-23 02:10:30,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:10:30,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:10:30,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:10:30,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:10:30,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:10:30,633 INFO L87 Difference]: Start difference. First operand 80153 states and 122247 transitions. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 2 states have internal predecessors, (258), 2 states have call successors, (101), 2 states have call predecessors, (101), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2021-11-23 02:10:32,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:35,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:37,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:40,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:42,850 WARN L534 Checker$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 02:10:46,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:53,416 WARN L534 Checker$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 02:10:55,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:10:59,789 WARN L534 Checker$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 02:11:01,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:11:03,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:11:05,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:11:05,543 INFO L93 Difference]: Finished difference Result 119927 states and 183089 transitions. [2021-11-23 02:11:05,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:11:05,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 2 states have internal predecessors, (258), 2 states have call successors, (101), 2 states have call predecessors, (101), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 686 [2021-11-23 02:11:05,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:11:06,404 INFO L225 Difference]: With dead ends: 119927 [2021-11-23 02:11:06,404 INFO L226 Difference]: Without dead ends: 119924 [2021-11-23 02:11:06,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:11:06,467 INFO L933 BasicCegarLoop]: 5675 mSDtfsCounter, 4457 mSDsluCounter, 4991 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4462 SdHoareTripleChecker+Valid, 10202 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:11:06,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4462 Valid, 10202 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 953 Invalid, 7 Unknown, 0 Unchecked, 32.7s Time] [2021-11-23 02:11:06,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119924 states. [2021-11-23 02:11:12,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119924 to 119827. [2021-11-23 02:11:12,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119827 states, 73275 states have (on average 1.4118867280791538) internal successors, (103456), 79274 states have internal predecessors, (103456), 39378 states have call successors, (39378), 7174 states have call predecessors, (39378), 7173 states have return successors, (40067), 37013 states have call predecessors, (40067), 39377 states have call successors, (40067) [2021-11-23 02:11:13,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119827 states to 119827 states and 182901 transitions. [2021-11-23 02:11:13,211 INFO L78 Accepts]: Start accepts. Automaton has 119827 states and 182901 transitions. Word has length 686 [2021-11-23 02:11:13,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:11:13,213 INFO L470 AbstractCegarLoop]: Abstraction has 119827 states and 182901 transitions. [2021-11-23 02:11:13,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 2 states have internal predecessors, (258), 2 states have call successors, (101), 2 states have call predecessors, (101), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2021-11-23 02:11:13,214 INFO L276 IsEmpty]: Start isEmpty. Operand 119827 states and 182901 transitions. [2021-11-23 02:11:14,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 757 [2021-11-23 02:11:14,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:11:14,275 INFO L514 BasicCegarLoop]: trace histogram [29, 29, 29, 23, 8, 8, 8, 8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:14,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 02:11:14,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-23 02:11:14,479 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:11:14,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:11:14,480 INFO L85 PathProgramCache]: Analyzing trace with hash 349591254, now seen corresponding path program 1 times [2021-11-23 02:11:14,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:11:14,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876549982] [2021-11-23 02:11:14,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:11:14,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:11:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:11:15,472 INFO L134 CoverageAnalysis]: Checked inductivity of 2540 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 2517 trivial. 0 not checked. [2021-11-23 02:11:15,473 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:11:15,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876549982] [2021-11-23 02:11:15,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876549982] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:11:15,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304415046] [2021-11-23 02:11:15,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:11:15,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:11:15,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:11:15,475 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:11:15,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0571f4-ecdf-4ae5-b3f2-f1b05566a9f7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 02:11:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:11:19,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 15783 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 02:11:19,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:11:26,220 INFO L134 CoverageAnalysis]: Checked inductivity of 2540 backedges. 452 proven. 0 refuted. 0 times theorem prover too weak. 2088 trivial. 0 not checked. [2021-11-23 02:11:26,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:11:26,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304415046] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:11:26,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:11:26,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-11-23 02:11:26,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087525410] [2021-11-23 02:11:26,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:11:26,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:11:26,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:11:26,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:11:26,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:11:26,223 INFO L87 Difference]: Start difference. First operand 119827 states and 182901 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 2 states have internal predecessors, (309), 2 states have call successors, (110), 2 states have call predecessors, (110), 2 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) [2021-11-23 02:11:27,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:11:32,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:11:34,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:11:36,937 WARN L534 Checker$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 02:11:39,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:11:44,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:11:46,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:11:48,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:11:52,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:11:54,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:11:58,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:12:01,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:12:07,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:12:07,535 INFO L93 Difference]: Finished difference Result 339152 states and 517864 transitions. [2021-11-23 02:12:07,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:12:07,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 2 states have internal predecessors, (309), 2 states have call successors, (110), 2 states have call predecessors, (110), 2 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) Word has length 756 [2021-11-23 02:12:07,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:12:09,142 INFO L225 Difference]: With dead ends: 339152 [2021-11-23 02:12:09,142 INFO L226 Difference]: Without dead ends: 239603 [2021-11-23 02:12:09,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 760 GetRequests, 756 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:12:09,517 INFO L933 BasicCegarLoop]: 5694 mSDtfsCounter, 4592 mSDsluCounter, 5015 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4600 SdHoareTripleChecker+Valid, 10235 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:12:09,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4600 Valid, 10235 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 957 Invalid, 9 Unknown, 0 Unchecked, 35.3s Time] [2021-11-23 02:12:09,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239603 states.